Cary Audio Design PH 302 MKII Stereo Amplifier User Manual

o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o
OWNER’S MANUAL
o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o
PH-302 MkII
Vacuum Tube Phono Preamplifier
NOTE: Before installing your new component, please read this manual
carefully as it will inform you of the product specifications, proper
installation and correct operating procedures for your unit. Also included
in this manual are guidelines on how to service and care for your new
Cary Audio Design product.
TABLE OF CONTENTS
Important Safety Instructions .............................................................................................................. 2
Introduction .......................................................................................................................................... 5
Specifications........................................................................................................................................ 6
Features ................................................................................................................................................ 7
Installation
Unpacking ......................................................................................................................................... 8
Warranty Card................................................................................................................................... 8
Break-In Period ................................................................................................................................. 8
Service and Care
Factory Service .................................................................................................................................. 9
Non-Warranty Repairs ...................................................................................................................... 9
Limited Warranty ............................................................................................................................... 10
IMPORTANT SAFETY INSTRUCTIONS
WARNING: To reduce the risk of fire or electric shock, do
not expose this appliance to rain or moisture. The lightning
flash with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of un-insulated
dangerous voltage within the product’s enclosure that may
be of sufficient magnitude to constitute a risk of electric
shock to persons.
CAUTION: To reduce the risk of electric shock, do not remove the cover. There are no user serviceable parts inside.
Please refer to qualified personnel for service.
ALERT: The exclamation point within an equilateral triangle is intended to alert the user of the presence of important
operating and maintenance (servicing) instructions in the literature accompanying the component.
1.
READ ALL INSTRUCTIONS: All the safety and operating instructions of your Cary Audio equipment should be read
before power is applied to the equipment.
2.
RETAIN OWNER'S MANUAL: These safety and operating instructions should be retained for future reference.
3.
HEED WARNING: All warnings on the unit and in the operating instructions should be adhered to.
4.
FOLLOW INSTRUCTIONS: All operating and use instructions should be followed.
5.
CLEANING: Unplug the unit from the wall outlet before cleaning. The unit should be cleaned only as recommended
by the manufacturer.
6.
ATTACHMENTS: Do not use attachments not recommended by the unit manufacturer as they may cause hazards.
7.
WATER AND MOISTURE: Do not use the unit near water - for example, near a bath tub, wash bowl, kitchen sink,
or laundry tub; in a wet basement; or near a swimming pool.
8.
ACCESSORIES: Do not place the unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall,
causing serious injury to a child, an adult, or damage to the unit. Mounting of the unit should follow the
manufacturer's instructions and should use a mounting accessory recommended by the manufacturer.
9.
VENTILATION: Slots and openings in the cabinet are provided for ventilation to ensure reliable operation of the
unit and to protect it from overheating. These openings must not be blocked or covered. The top or bottom panel
openings should never be blocked by placing the unit on a bed, sofa, rug, or other similar surface. The unit should
not be installed in a built-in location such as a bookcase or rack unless proper ventilation is provided. There should
be free space of at least 6 inches (16cm) above the unit and an opening behind the unit.
10. GROUNDING OR POLARIZATION: The unit may be equipped with a polarized alternating current line plug (a plug
having one blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature.
If you cannot insert the plug fully into the outlet, try reversing the plug. If the plug should fail to fit, contact a
licensed electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug.
11. POWER SOURCES: The unit should be operated only from the type of power source indicated on the marking
label. If you are not sure of the type of power supplied to your home, consult your unit dealer or local power
company.
12. POWER CORD PROTECTION: Power supply cords should be routed so that they are unlikely to be walked on or
pinched by items placed on or against them. Pay close attention to cords where they enter a plug, or a convenience
receptacle, and the point where they exit from the unit.
13. OUTDOOR ANTENNA GROUNDING: If an outside antenna or cable system is connected to the unit, be sure the
antenna or cable system is grounded so as to provide protection against voltage surges and built-up static charges.
Article 810 of the National Electrical Code, NSI/NFPA 70, provides information regarding proper grounding of the
mast and supporting structure, grounding of the lead-in wire to an Antenna-discharge unit, size of grounding
conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for the
grounding electrode.
2
IMPORTANT SAFETY INSTRUCTIONS
14. LIGHTNING: For added protection for the unit during a lightning storm, or when it is left unattended and unused for
long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent
damage to the unit due to lightning and power line surges.
15. POWER LINES: An outside antenna system should not be located in the vicinity of overhead power lines or other
electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna
system, take extreme care to keep from touching such power lines or circuits as contact with them might be fatal.
16. OVERLOADING: Do not overload wall outlets, extension cords, or integral convenience receptacles as this can
result in a risk of fire or electric shock.
17. OBJECT AND LIQUID ENTRY: Never push objects of any kind into the unit through openings as they may touch
dangerous voltage points or short-out parts that could result in a fire or electric shock. Never spill liquid of any kind
on the unit.
18. SERVICING: Do not attempt to service the unit yourself as opening or removing covers may expose you to
dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
19.
REPLACEMENT PARTS: When replacement parts are required, be sure the service technician has used
replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock or other hazards.
20. SAFETY CHECK: Upon completion of any service or repairs to the unit, ask the service technician to perform safety
checks to determine that the unit is in proper operating condition.
21. WALL OR CEILING MOUNTING: The unit should be mounted to a wall or ceiling only as recommended by the
manufacturer.
22. HEAT: The unit should be situated away from heat sources such as radiators, heat registers, stoves, or other units
(including amplifiers) that produce heat.
23.
IMPORTANT SAFETY NOTE: Before connecting a new component such as the DVD 7 to your audio or home
theater system it is always good practice to make certain that all components are turned off, and preferably
unplugged from their AC power source. Many modern electronics products feature automatic turn-on circuits that
may be activated during an installation, causing the potential for damage to electronic components and/or speakers.
Such damage is not covered by product warranties and Cary Audio specifically disclaims responsibility for any such
damage.
Power Cord: The removable power cord that is shipped with the player is specifically designed to be used with this
product. Other AC cords may be used, so consult your dealer for advice on AC power cords and high quality wire in
your system.
AC Fuse: The fuse is located inside the chassis and is not user serviceable. If power does not
come on, contact your authorized service representative.
Wiring: Cables that run inside of walls should have the appropriate markings to indicate compliance with, and listing
by the UL, CSA or other standards required by the UL, CSA, NEC or your local building code. Questions about cables
inside of walls should be referred to a qualified custom installer, or a licensed electrician or low-voltage contractor.
Do Not Open the Cabinet: There are no user serviceable components inside this product. Opening the cabinet
may present a shock hazard, and any modification to the product will void your warranty. If water or any metal
object, such as a paper clip, coin, or staple accidentally falls inside the unit, disconnect it from the AC power source
immediately and contact Cary Audio for further instructions.
24. RECORDING COPYRIGHT: Recording of copyrighted material for other than personal use is illegal without
permission of the copyright holder.
25.
NOTE TO CATV SYSTEM INSTALLER: This reminder is provided to call the CATV system installer's attention to
article 820-40 of the NEC, ANSI/NFPA 70, which provides guidelines for proper grounding and, in particular, specifies
that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry
as practical.
3
IMPORTANT SAFETY INSTRUCTIONS
26. FCC INFORMATION FOR USER:
CAUTION: ANY changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to
Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This
equipment generates and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from where the receiver is connected.
27. OUTDOOR ANTENNA INSTALLATION/SAFE ANTENNA AND CABLE
CONNECTION: If an outside antenna or cable system is connected to
the equipment, be sure the antenna or cable system is grounded so as to
provide protection against built up static charges and voltage surges, Section
810 of the national Electrical Code, ANSI/NFP A70 (in Canada, part 1 of the
Canadian Electrical Code) provides information with respect to proper grounding
of the mast and supporting structure, grounding of the lead-in wire to an
antenna discharge unit, size of grounding conductors, location of antenna
discharge unit, connection to grounding electrodes and requirements for the
grounding electrode.
Keep Antenna Clear of High Voltage Power Lines or Circuits
An outside antenna system should be located well away from power lines, electric light or power circuits and where it will
never come into contact with these power sources if it should happen to fall. When installing an outside antenna, extreme
care should be taken to avoid touching power lines, circuits or other power sources as this could be fatal. Because of the
hazards involved, antenna installation should be left to a professional.
4
INTRODUCTION
It took over three years of painstaking research, engineering, listening, and refining, before Cary was
ready to release the PH 302. But now that it's here, even the most demanding record enthusiasts will
realize this exotic unit is dedicated to nothing short of incomparable vinyl playback.
The PH 302 is a vacuum tube design utilizing four 6SL7 dual triodes. The RIAA equalization curve is
derived from a passive RC circuit located between the two gain stages. The PH 302 is supplied with a
regulated power supply to ensure an extremely quiet operation. The MC section uses two very high
quality step-up transformers. They provide enough gain for use with any MC cartridge and with an
extremely low noise floor. It is perfectly matched to any of the high-end Cary integrated amplifiers or
pre-amplifiers.
The PH 302 is finished with the beauty and detail that Cary Audio Design is famous for. With its black
chassis and black anodized front plate, you know immediately it belongs in the Cary family of high-end
audio products.
For the analog lover the PH 302 is a magical blend of art and technology that will add to your music
listening enjoyment hour after hour. Experience the PH 302, experience what vacuum tubes can do to
low output moving coil playback. We believe it will change the way you listen to music forever.
When the following cautionary terms are used in this manual, these definitions apply:
WARNING
 Electrical hazard! Misuse or failure to follow instructions properly may
result in personal injury or death!
CAUTION
 No risk or personal injury; however, misuse or failure to follow instructions
may result in damage to equipment.
NOTE
 No risk of personal injury or equipment damage; however, misuse or failure
to follow instructions may prevent proper performance of the equipment.
5
SPECIFICATIONS
This section describes the basic specifications of the PH 302 phono preamplifier at the time of printing.
Specifications are subject to change without notice or obligation.
............................................................................................................................................................
CIRCUIT TYPE
Direct Coupled, Single-ended Class A
............................................................................................................................................................
GAIN, MM PHONO SECTION
38 dB, using triode vacuum tubes
............................................................................................................................................................
GAIN, MC PHONO SECTION
54 dB, using input transformers and triode vacuum tubes
............................................................................................................................................................
NOISE AND HUM
-78 dB below full output
............................................................................................................................................................
INPUT IMPEDANCE
MM 47 k ohm, MC 100 ohm
............................................................................................................................................................
OUTPUT IMPEDANCE
660 ohms
............................................................................................................................................................
FREQUENCY RESPONSE
RIAA Curve + 0.5 dB, passive RIAA circuit design
............................................................................................................................................................
POWER SUPPLY DESIGN
Fully regulated power supply with 1 ea - R-Core transformer
............................................................................................................................................................
TRANSFORMER(S)
200% Duty rating for long life and reserve energy
............................................................................................................................................................
VACUUM TUBE COMPLEMENT
2 ea - 6SL7 Head Amp
2 ea - 6SL7 RIAA EQ & Amp Gain Stage
1 ea - 5AR4 Vacuum Tube Rectifier
............................................................................................................................................................
POWER SUPPLY CAPACITORS
6 ea - 47 µFd @ 350 VDC capacitor
............................................................................................................................................................
RESISTORS
1% Metal Film
............................................................................................................................................................
POWER SUPPLY CAPACITORS
6 ea - 47 µFd @ 350 VDC capacitors
............................................................................................................................................................
AC CORD
3 Conductor, Detachable
............................................................................................................................................................
AC POWER REQUIREMENTS
100, 117 or 234 Volts @ 50/60 Hz, set by market
............................................................................................................................................................
POWER CONSUMPTION
15 Watts
............................................................................................................................................................
WARM-UP TIME
5 Minutes
............................................................................................................................................................
BREAK-IN TIME
100 hours of music playing time
............................................................................................................................................................
FINISH
Black or silver anodized aluminum faceplate, semi gloss black
steel chassis
............................................................................................................................................................
WEIGHT
22 lbs. (10 kg.)
............................................................................................................................................................
DIMENSIONS
4" H x 17" W x 13" D (~10 x 43 x 33 cm)
............................................................................................................................................................
6
FEATURES
Front Panel
............................................................................................................................................................
POWER SWITCH
On/off toggle switch
............................................................................................................................................................
MM/MC SWITCH
Toggle to change from mm to mc
............................................................................................................................................................
MUTE/OPERATE SWITCH
Mutes output of preamplifier
............................................................................................................................................................
POWER LED
Indicates AC power ON
............................................................................................................................................................
OPERATE LED
Indicates ready for operation
............................................................................................................................................................
MUTE LED
Indicates mute mode
............................................................................................................................................................
Rear Apron Features
............................................................................................................................................................
MM
RCA jack for MM cartridges - input
............................................................................................................................................................
MC
RCA jack for MC cartridges - input
............................................................................................................................................................
OUTPUT
RCA Jack for output to preamplifier or integrated amplifier
............................................................................................................................................................
GROUND
Turntable ground
............................................................................................................................................................
GROUND “FLOAT” SWITCH Floats AC ground
............................................................................................................................................................
AC FUSE
1 amp slow blow protection fuse
............................................................................................................................................................
AC INLET
3 conductor, Detachable
............................................................................................................................................................
7
INSTALLATION
This section describes the unpacking and installation procedures for your new component.
Unpacking
All Cary Audio Design shipping containers have been specially designed to protect their contents and
special care has been taken to prevent damage under normal shipping conditions. Mishandling should be
evident upon inspection of the shipping container. If shipping damage is found after visual inspection,
take care not to destroy the evidence. If necessary, document the damage with photographs and contact
the transport carrier immediately.
Carefully remove your new component from its packing carton and examine it closely for signs of
shipping damage. We strongly recommend saving all original packing cartons to protect your component
from damage should you wish to store it or ship it for after-sales service.
Warranty Card
IN THE USA: If you are the original purchaser of a new unit from an AUTHORIZED CARY AUDIO
DESIGN DEALER, please fill out the enclosed warranty registration card and return it to Cary Audio
Design within 15 days of your purchase. Cary Audio Design also suggests that you keep your original
packing cartons in case you ever need to ship the unit when moving to a new home. Warranty
restrictions apply. Consult the warranty section at the end of this manual for details. Please be certain to
keep a copy of the original sales receipt from your AUTHORIZED CARY AUDIO DESIGN DEALER to
validate the warranty if ever needed. The warranty is for the original purchaser only and does not
transfer to any subsequent owner.
OUTSIDE THE USA: Your local Authorized Cary Audio Design Distributor will make his own warranty
policy for your country. Please check with them for the terms of warranty for your new amplifier.
Break-In Period
The tubes and capacitors take approximately 100 hours of music playing to fully settle in for peak
performance. The PH 302 will seem sterile or thin sounding right out of the box. After the first couple of
hours you will notice increased depth and tighter bass. This break-in period defies all engineering theory,
but is true with most audio amplifiers.
WARNING
 Make sure the PH 302 is unplugged from power pack before servicing.
8
SERVICE AND CARE
The chassis may be cleaned with a soft towel and Windex® (or a similar window cleaner). Spray it on
the cleaning cloth to moisten it, not on the component. Do not use solvents or harsh chemicals as they
may remove the labels from the chassis. The frequency and need of cleaning will be governed by
operating environmental conditions. Avoid letting the component become dusty or wet. A ‘feather duster’
type cleaner will also work well for cleaning the component.
Factory Service
Careful consideration has been given to the design of this product to keep maintenance problems to a
minimum. If problems arise, refer to the trouble-shooting guide at the end of this manual. If the problem
is not easily solved, we suggest that you contact our Customer Service Department by phone at (919)
355-0010, 1–5 pm Eastern Standard Time, to describe your problem in detail. Do not return the
component to the factory without a Return Authorization Number (RA) from the Customer Service
Department.
Cary Audio Design assumes no responsibility if the transportation company refuses to pay a damage
claim due to your improper packing or lack of insurance should the unit be lost in shipment. We strongly
suggest using the original packing cartons for shipping any Cary Audio Design component.
Non-Warranty Repairs
Cary Audio Design will provide repair service for its products charging on a time and expense basis. At
this time, the standard non warranty service bench fee is $125 with all parts used for repair charged
extra. This may change with time and is not a quote for service. Please call us at 919-355-0010 for more
information about out of warranty service and repair fees.
WARNING
 Make no attempt to put the PH 302 in service outside of the cabinet or with
the cabinet open! Contact with the high voltages found inside the unit can
be fatal!
9
LIMITED WARRANTY
Cary Audio Warrants to the original United States purchaser for use in the United States
the Following Cary Audio Products for the Periods Indicated:
1. Power Amplifiers, Integrated Amplifiers, Surround Sound Processors, and Preamplifiers have
a three (3) year parts and labor warranty from the date of the original purchase from Cary
Audio.
2. CD or SACD players, DVD players, or Music Servers have an eighteen (18) month parts and
labor warranty from the date of the original purchase from Cary Audio.
3. Vacuum tubes, if any are used in the component, are offered a 90-day exchange policy
against defects with the exception of the CAVT 300B vacuum tube that has a one (1) year
exchange policy from the date of the original purchase from Cary Audio.
What is Covered and What is Not Covered
Except as specified below, this warranty covers parts and labor to correct all defects in materials and
workmanship. The following are not covered by the warranty:
1. Damage, deterioration, malfunction or failure to meet performance specifications resulting
from:
a. Accident, acts of nature, misuse, abuse, neglect or unauthorized product
modifications
b. Improper installation, removal or maintenance, or failure to follow instructions
supplied with the product.
c. Repair or attempted repair by anyone not authorized by Cary Audio to repair the
product.
d. Any shipment of the product (claims must be presented to the carrier).
e. Any cause other than a product defect.
2. Cleaning, initial set-up, check-ups with no defects found, or charges incurred for installation,
removal or reinstallation of the product.
3. Any product, on which the serial number has been defaced, modified or removed.
4. Batteries.
5. Accessories, including but not limited to, batteries, cables, mounting hardware and brackets,
cleaning accessories, antenna and detachable power cords.
6. Warranty is void if purchase was made from anyone other than an authorized Cary Audio
dealer.
Who May Enforce the Warranty?
This warranty extends to products purchased directly from Cary Audio or an authorized Cary Audio
dealer. Purchasers should inquire of the dealer regarding the nature and extent of the dealer’s
warranty, if any.
To obtain such warranty service, the original purchaser must complete and send in the Warranty
Registration Card within 15 days of purchase.
10
LIMITED WARRANTY
What Will We Pay For?
We will pay for all labor and material expenses for items covered by the warranty. Payment of
shipping charges is discussed in the next section of this warranty.
How You Can Get Service?
In the event that the owner needs to return the unit to Cary Audio for service or repair of a possible
defect, he must follow the following steps:
1. Contact Cary Audio at 919-355-0010 to obtain a Return Merchandise Authorization (RMA)
number prior to shipping; include this number with the package
2. Submit a copy of the original sales receipt; blank receipts will not validate the limited
warranty for service by Cary Audio. The original sales receipt must contain the following
information:
a. The authorized Cary Audio dealer’s name
b. The date of purchase
c. The unit’s sales price
d. The buyer’s name and address
e. Describe in detail the problem.
f. Note the unit’s model number and serial number.
3. Deliver by either of these methods:
a. With all freight and insurance charges prepaid and in its original packing container
or equivalent, ship the component to Cary Audio, 1020 Goodworth Drive Apex, NC
27539.
b. Hand-deliver the product to Cary Audio (address noted above) or the nearest
authorized service facility.
Limitation of Implied Warranties
All implied warranties, including warranties of merchantability and fitness for particular purchase, are
limited in duration to the length of this warranty.
Exclusion of Damages
Cary Audio’s liability for any defective product is limited to repair or replacement of the product at
Cary Audio’s option. Cary Audio shall not be liable for damage to other products caused by any
defects in Cary Audio products, damages based upon inconvenience or loss of use of the product, or
any other damages, whether incidental, consequential, or otherwise.
11
LIMITED WARRANTY
How State Law Relates to the Warranty
Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions
may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from
state to state.
International Purchasers (Export Markets)
Cary Audio warrants its merchandise to purchasers within the United States exclusively for use
within the United States. It provides no other warranties, expressed or implied. If you are living
outside of the United States, please consult your local dealer or distributor to determine the details
of your local warranty.
12
1020 Goodworth Drive, Apex, NC 27539
phone 919-355-0010
fax 919-355-0013
www.caryaudio.com
o o o o o o o o o o o o o o o o o o o o o o o o o
CARY AUDIO DESIGN
o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o