OSD Audio PRE-1 Preamplifier User Manual

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OSD Audio PRE-1 Preamplifier User Manual | Manualzz
PRE 1
STEREO PRE AMPLIFIER INSTALL GUIDE
PRE 1 INSTALL GUIDE
Front Panel Description
11. 12.
VOLUME
POWER
MIC LEVEL
BASS
MID
TREBLE
LOUDNESS
AUX1 AUX2
BALANCE
TAPE
MONO
LOW FILTER
MUTE
PHONO
CD/DVD
MIC
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Left
Right
Min
INPUT SELECT
Max
PRE 1
STEREO PRE-AMP
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
13. 14.
AUX2
AUX1
CD/DVD
1. Power ON / OFF
2. Microphone PRE
Jack
Input
1
3. Mic Level Control
4. Bass Control: To boost or attenuate low frequency sound.
5. Midrange Control: To boost or attenuate midrange frequency sound.
6. Treble Control: To boost or attenuate high frequency sound.
7. Loudness: To compensate for the non-linear response of the human ear at low volume.
2015-09-01
8. Balance: Controls the relative volume between the left/right
speakers and headphone.
9. Master Volume: Adjusts the main output volume level of speakers and headphones.
10. Input Selector: Switch between multiple input sources.
11. Tape: Input for an analog tape deck
12. Mono: Switch between mono or stereo signal
13. Low Frequency Filter: Eliminates low frequency distortion from a turntable or warped record.
14. Mute: Reduce the volume level by 20dB. Useful when changing records, tapes or changing sources.
STEREO PRE-AMP
VOLUME
POWER
MIC LEVEL
BASS
MID
TREBLE
LOUDNESS
AUX1 AUX2
BALANCE
PHONO
CD/DVD
TAPE
MONO
LOW FILTER
MUTE
MIC
Min
Max
Min
Max
Min
Max
Min
Max
Min
AUX1
2.
3.
Left
Right
Min
Back Panel Description
AUX2
Max
INPUT SELECT
Max
PRE 1
STEREO PRE-AMP
CD/DVD
PRE 1
STEREO PRE-AMP
1.
4.
5.
6.
7.
8.
9.
10.
1. Phono Inputs: Connect to Left/Right output from a turntable.
11.
2. Aux Input 2: Auxiliary source input.
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3. Aux Input 1: Auxiliary source input.
4. CD/DVD Input: Connect to Left/Right output from a CD or DVD player.
5. Tape Play: Connect to a tape decks output jacks.
6. Tape Rec: Connect to a tape decks input jacks.
7. Output: Used to connect to a signal processing unit, such as a graphic equalizer or can be connected to a power
amplifier with higher output power.
8. Ground Screw: Connect the ground wire from a turntable here to avoid hum or feedback from the speakers.
9. AC Selector: Switch between 110V-220V AC.
10. Fuse Holder: Contains primary AC fuse If fuse blows replace only with the same amperage fuse.
11. AC Power Cord: Plug the AC cord into a nearby AC outlet or surge protector.
PRE 1 INSTALL GUIDE
System Diagram
PHONO
CD/DVD
TAPE
VOLUME
POWER
MIC LEVEL
BASS
MID
TREBLE
LOUDNESS
AUX1 AUX2
BALANCE
PHONO
CD/DVD
TAPE
MONO
LOW FILTER
MUTE
MIC
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Left
Right
Min
Max
INPUT SELECT
PRE 1
STEREO PRE-AMP
AUX2
AUX1
CD/DVD
PRE 1
STEREO PRE-AMP
2015-09-01
AUX 2
AUX1
AMPLIFIER
PRE 1 INSTALL GUIDE
Specifications
Input Sensitivity/Impedance
Mic0.5V/600 Ohms
Phono3mV/47k Ohms
Tape,Tuner, CD/DVD, Aux150mV/47k Ohms
Output Level/Impedance
Tape Rec150mV/100k Ohms
Pre Output500mV/47k Ohms
Total Harmonic Distortion
Micless than 0.4%
Phonoless than 0.4%
Tape,Tuner, CD/DVD, Auxless than 0.2%
Signal to Noise Ratio
Micmore than 50dB
Phonomore than 70dB
Tape,Tuner, CD/DVD, Auxmore than 80dB
Frequency Response5Hz - 30kHz +0 -3dB
Tone Control
Bass± 12dB @ 100Hz
Midrange± 6dB @ 1kHz
Treble± 12dB @ 10kHz
Loudness Control+4/0/+2dB @ 100/1k/10kHz
Power RequirementsAC 120V 60Hz / 220V 50Hz
Dimensions18.9" x 2.36" x 8.25"
Warranty Information
All OSD AUDIO electronics have (2) year Limited Warranty against defects in materials and workmanship. Proof of purchase must accompany all
claims. During the warranty period OSD AUDIO will replace any defective part and correct any defect in workmanship without charge for either parts or
labor
OSD AUDIO may replace returned electronics with a product of equal value and performance. In such cases, some modifications to the mounting may
be necessary and are not OSD AUDIO’s responsibility.
For this warranty to apply, the unit must be installed and used according to its written instructions. If necessary, repairs must be performed by OSD
AUDIO. The unit must be returned to OSD AUDIO at the owner’s expense and with prior written permission. Accidental damage and shipping damage
are not considered defects, nor is damaged resulting from abuse or from servicing performed by an agency or person not specifically authorized in
writing by OSD Audio
OSD AUDIO sells products only through authorized dealers and distributors to ensure that customers obtain proper support and service. Any OSD
AUDIO product purchased from an unauthorized dealer or other source, including retailers, mail order dealers and online sellers will not be honored or
serviced under existing OSD AUDIO warranty policy. Any sale of product by an unauthorized source or other manner not authorized by OSD AUDIO
shall void the warranty on the applicable product.
This Warranty Does Not Cover: Damage caused by abuse, accident, misuse, negligence, or improper operation (installation) • Any products that have
been altered or modified • Any product whose identifying number of decal, serial #, etc. has been altered, defaced or removed • Normal wear and
maintenance.
OSD Audio | Brea, CA | osdaudio.com
PRE1 Manual 3/16
Damage to or destruction of components due to application of excessive power voids the warranty on those parts. In these cases, repairs will be made
on the basis of the retail value of the parts and labor. To return for repairs, you must email customer service at [email protected] for a Returned
Merchandise Authorization (RMA) number then the unit must be shipped to OSD AUDIO at the owner’s expense, along with a note explaining the
nature of service required. Be sure to pack the product(s) in a corrugated container with at least 3 inches of resilient material to protect the unit from
damage in transit.

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