Tone King
Ironman II Mini
User’s Manual
Tone King Amplifiers
Safety Instructions
Please keep this instruction manual for future reference and for the duration of owning
this Tone King Amplifier. Please carefully read and understand the instructions inside
this user’s manual before attempting to operate your new amp. This instruction manual
includes essential safety information regarding the use and maintenance of the
amplifier. Take special care to heed all warning symbols and signs inside this manual
and those printed on the amplifier itself.
The lightning flash with an arrow triangular symbol is intended to alert the user to the
presence of non-insulated “dangerous voltage” within the products enclosure, and
may be of sufficient magnitude to constitute a risk of electric shock
The exclamation point triangular symbol is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the user manual
accompanying this amplifier!
1. Read Instructions – All the safety and operating instructions should be read before
this product is operated.
2. Retain Instructions – The safety and operating instructions should be retained for
future reference.
3. Heed Warnings – All warnings on the amplifier and in the operating instructions
should be adhered to.
4. Follow Instructions – All operating and use instructions should be followed.
5. Water and Moisture – The amplifier should not be used near water – for example, a
bathtub, washbowl, kitchen sink, laundry tub, wet basement, or near a swimming
pool, and the like.
6. Carts and Stands – The amplifier should be used only with a cart or stand that is
recommended by the manufacturer.
An amplifier and cart combination should be moved with care. Quick stops, excessive
force, and uneven surfaces may cause the amplifier and cart combination to
7. Wall or Ceiling Mounting
– The product should never be mounted to a wall or ceiling.
8. Heat – Amplifier should be situated away from heat sources such as radiators, heat
registers, stoves, or other amplifier (including amplifiers) that produce heat.
9. Power Sources – This product should be operated only from the type of power source
indicated on the rating label.
If you are not sure of the type of power supply to your home, consult your product
dealer or local power company.
10. Grounding or Polarization
– This product may be equipped with a polarized alternation-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 are unable to insert the plug fully into the
outlet, try reversing the plug. If the plug should still fail to fit, contact your
electrician to replace your obsolete outlet. Do not defeat the safety purpose of the
polarized plug.
11. Power-Cord Protection
– Power-supply cords should be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying particular attention to the
cord in correspondence of plugs, convenience receptacles, and the point where they
exit from the amplifier.
12. Cleaning – The amplifier should be cleaned only as recommended by the
manufacturer. Clean by wiping with a cloth slightly damp with water. Avoid getting
water inside the amplifier.
14. Non-use Periods – The power cord of the amplifier should be unplugged from the
outlet when left unused for a long period of time.
15. Object and Liquid Entry
– Care should be taken so that objects do not fall and liquids are not spilled into the
enclosure through openings.
16. Damage Requiring Service
– The amplifier should be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the amplifier; or
C. The amplifier has been exposed to rain; or
D. The amplifier does not appear to operate normally or exhibits a marked change in
performance; or
E. The amplifier has been dropped, or the enclosure damaged.
F. The amplifier needs tube replacement or biasing
17. Servicing – The user should not attempt any service to the amplifier beyond that
described in the operating instructions.
All other servicing should be referred to qualified service personnel.
18. Ventilation – Slots and openings in the cabinet are provided for ventilation and to
ensure reliable operation of the product and to protect it from overheating, and
these openings must not be blocked or covered. The openings should never be
blocked by placing the product on a bed, sofa, rug, or other similar surface. This
product should not be placed in a built- in installation such as a bookcase or rack.
19. Attachments – do not use attachments not recommended by the product
manufacturer as they may cause hazards.
20. Accessories – Do not place this product on an unstable cart, stand, tripod, bracket,
or table. The product may fall, causing serious injury to a child or adult, and
serious damage to the product. Use only with a cart, stand, tripod, bracket, or table
recommended by the manufacturer, or sold with the product.
21. Lightning – For added protection for this product before a lightning storm, or when
it is left unattended and unused for long periods of time, unplug it from the wall
outlet. This will prevent damage to the product due to lightning and power line
22. 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.
23. Safety Check – Upon completion of any service or repairs to this product, ask the
service technician to perform safety checks to determine that the product is in
proper operating condition.
24. FUSES – Always use the correct rating and type of fuse as indicated on the rear
panel. Note the proper rating fuse is determined by the AC line voltage in the
country this unit is being operated.
25. AC SELECT SWITCH: This switch must be set to match the AC line voltage in the
country this unit is being operated.
To change the setting, loosen (do not remove) the two screws above and below the slide
switch. Temporarily move the protective cover strip and slide the actuator to match
the voltage in your country. Place the protective cover strip back over the switch
and tighten the two screws.
Introduction / Product Description
Front Panel Controls
Attenuation Control
Range Switch
Solo Button
Presence Switch
4. Back Panel Controls
9VDC Power Input
Speaker Jack
Amplifier Jack
5. Battery Replacement
6. Connecting the Ironman II Mini
Speaker Connection for Combo Amps
Connection for Silent Recording / D.I.
7. Attenuation Dial
8. Getting a Great Sound at Home
The Effect of Your Acoustical Environment
Floor Reflections
Where to Place the Amp
9. Warranty
10. CE Declaration
1. Introduction - Product Description
Purpose of an Attenuator
Many vintage tube guitar amplifiers need to be cranked up to full volume in order to
achieve any amount of overdrive and distortion. This type of amplifier does not usually
have a Master Volume control, and is designed so that all overdrive and distortion
happens in the output stage, and not in the preamp. An example of this type of amp is
the Fender Deluxe, or Vox AC-30.
This type of amp can create difficulties in managing the volume level, since it needs to
be running at full output power to achieve overdrive and distortion. A power attenuator
solves this problem. It is connected between the output of the amplifier and the
speaker, and it allows you to send a specified fraction of the amp's output power to the
speaker. The remainder of the amp's output power is dissipated within the attenuator
itself. This way, the amp can run at full output power, and control the volume level
with the attenuator.
Tonal Quality
The tonal quality delivered by an attenuator depends on the design of the attenuator. A
simple, low-cost attenuator will generally deliver less than spectactular results – muddy
sound with blurred attack, buzzy artifacts, and other defects.
The Ironman II Mini employs Tone King's state-of-the-art Ironman II architecture, with
proprietary design features which make it particularly effective at maintaining the
natural sound and feel of your amplifier at even the lowest volume levels.
Technical Details
Here are a few of the technical features that make the Ironman II Mini a particularly
transparent, natural sounding attenuator:
1. Tuned Reactive Load
To preserve the natural response and feel of an amplifier, it is critical that the
output tubes see the proper loading. The Tuned Reactive Load of the Ironman-II
mirrors the impedance curve of a real speaker, which results in a more natural tone
and feel than the simple resistive load used in most attenuators.
2. Volume Compensation Circuitry
The ear perceives sound differently at low and high volume levels, which is why
many attenuators may sound thin and muffled at lower settings. The Ironman II
overcomes this phenomenon with its' proprietary Volume Level Compensation
Circuitry. This circuitry adjusts the tonal balance at each attenuation step, to
ensure that the sound you hear is always as deep, rich, and present at low volume
as it is at high volume.
3. Damping Factor Correction
A loudspeaker performs differently when driven with very little power, compared to
its response at full power. The Ironman-II's Damping Factor Correction Circuitry
compensates for this effect, making the speaker perform more naturally at low
volume so it retains the feel of a cranked amp, even at bedroom volume.
2. Specifications
3. Front Panel Controls
Attenuation Knob
The Attenuation knob selects between the 6 available attenuation steps. For each
attenuation step, there are three possible attenuation levels, as determined by the Solo
button and the Range switch. This will be discussed in detail in section 4 below.
Range Switch
The Range switch selects the relative attenuation level when the Solo function is
inactive, and therefore determines the amount of volume increase you get when the Solo
function is activated. More detail will be provided in section 4.
Solo Button
The Solo footswitch selects between two different attenuation levels, to provide a volume
boost for soloing or other purposes. The use of the Solo function will be described in
detail in section 4.
Presence Switch
The Presence switch provides subtle control of brightness and compression. It allows
you to tailor the response to match your acoustic environment, and to correct for an
overly bright amplifier. Three settings are provided: 0db (brightest setting), -3db, and
-6db (darkest setting).
4. Back Panel Controls
9V DC Power Input
The 9V DC power input is used to supply power for the Solo Indicator LED. When
power is applied via the 9V DC input, the LED is powered by the external power source,
and not from the internal batteries. If no external power source is connected, the LED
is powered by the internal 2xAA batteries.
Power supplied by either the batteries or the external power source is only used to
operate the Solo indicator LED. No other internal circuitry requires power to operate.
Thus, the unit will be fully functional with no power source connected (neither battery
nor external 9V supply), but the Solo LED indicator will not work without power.
NOTE: If an external 9v power supply is used, its ground MUST be isolated from
the signal path ground. There are 2 ways to accomplish this:
1. Use a power supply with isolated ground on each supply output
2. Use a dedicated 9v supply that is only connected to the Ironman II (not
shared with other effects devices).
Line Out
The Line-Out jack provides a line level signal which can be used to drive a mixing
board, a guitar or instrument amplifier, or any line-level input.
Speaker Jack
The speaker is to be connected to the Speaker jack. This jack can be used to drive any
8-ohm speaker. It should be connected using a mono 1/4" speaker cable. You may
need to use an adapter as well if the speaker is terminated with a 1/4" plug, as in a
combo style amplifier.
Amplifier Jack
The Amplifier jack is to be connected to your amplifier's "speaker" output, using a 1/4"
mono speaker cable. The amplifier's impedance selector (if it has one) must be set to
the 8 ohm position.
5. Battery Replacement
The Ironman II Mini requires either two AA
batteries or an external 9V power source to power
the Solo indicator LED. Power is not needed for
any part of the attenuation circuitry. The
attenuator is fully functional without a power
source, but operating without a power source
makes it difficult to determine the status of the
Solo feature.
To install or replace the batteries, first remove
the battery cover on the bottom of the unit by
removing the two screws. Install batteries in as
shown here, then replace the battery cover.
6. Connecting the Ironman II Mini
The diagram below shows the proper connection of the Ironman II Mini. Proper 1/4"
mono speaker cables must be used to connect both the amplifier and speaker.
Standard instrument cables are not sufficient for this purpose, and could result in
damage to the amplifier.
Speaker Connection for Combo Amps
The speaker connection in a combo amp (i.e. an amplifier with a built-in speaker)
usually consists of a 1/4" mono plug attached to the speaker, which is plugged into the
Speaker Out jack on the amplifier chassis. For this type of connection, you will need to
use a special adapter to connect the speaker plug to the cable used for connection to
the Ironman. This adapter is called a "Female-Female" adapter, and it looks like this:
Connection for Silent Recording / D.I.
The Ironman II Mini may be used as a simple reactive load for silent recording or D.I.
purposes. It will provide a proper load to your amplifier, with no speaker attached. The
drawing below shows how to connect the Ironman for this purpose.
7. Attenuation Dial
The amount of attenuation is determined by three controls: the Attenuation dial, the
Range switch, and the Solo button.
At each of the 6 steps of the Attenuation dial, three different attenuation levels are
possible, depending on the state of the Range switch and Solo button. The example
below shows how each of the 3 different attenuation levels are selected.
8. Getting a Great Sound at Home
The Effect of Your Acoustical Environment
When playing in a large room or on a big stage, getting a great sound from your amp is
usually easy. Generally, in this type of setting, can simply crank the amp up to full
power, and it will sound great.
Playing at home, or in any small room, is a different story. In a case like this, the
acoustic properties of the room can have a big influence on the sound you hear, and
can often cause problems.
There are many types of problems that can happen in a small room. Here are a few
suggestions for how to deal with them:
Floor Reflections
If you have the amp sitting on a hardwood, tile, or concrete floor in a small room, it may
sound harsh in the upper midrange, because of reflections off the floor directly in front
of the amp. To help solve this problem, you might try placing a small piece of carpet (or
a doormat, for example), directly in front of the amp.
Where to Place the Amp
Most small combo amps sound best when placed directly on the floor. However, if you
find that your amp sounds too bassy or boomy in the low end, you might try raising it
up at least 6” off the floor to even out the bottom end.
In a small room, you will find that the sound you hear is greatly influenced by the
location of the amp in the room, and by the orientation of the amp with respect to the
listening position (i.e. if the amp is pointing at you or away from you).
I strongly suggest experimenting by moving the amp around to different places in the
room, playing through it at each location, to find the place that sounds the best.
Carpeting can cause problems as well, and it’s not quite as simple as rolling off the high
frequencies and making the amp sound dark. Often, the problem is that it causes a dip
in a certain region in the midrange, leaving a hole in the lower midrange that makes the
amp sound harsh and brittle in the top end. This generally can’t be helped by moving
the amp to a different location in the room. The only solution I’ve found is to raise the
amp up a few inches off the floor. You may lose some bottom end in doing this, but the
positive effect in smoothing the midrange response will more than make up for it.
Thank you for choosing Tone King. Tone King manufactures some of the world’s
most reliable hand-wired, all-tube amplifiers and speaker cabinets. Tone King
takes great pride in an extremely thorough testing procedure which is
implemented on each product prior to shipment. In the unlikely event that you
have a problem with your amplifier, please refer to warranty below. Tone King
stands behind our products like no other and we’re here to help you!
AMPLIFIERS: Tone King offers a limited lifetime warranty to the original purchaser that
a Tone King amplifier will be free from defects in material and workmanship. A dated
sales receipt will establish coverage under this warranty, PLEASE KEEP YOUR PROOF
OF PURCHASE TO USE YOUR WARRANTY. This warranty does not cover service or
parts to repair damage caused by accident, neglect, abuse, normal & wear, disaster,
misuse, abuse, over-powering, negligence, inadequate packing or shipping procedures
and service, repair or any modifications to the product which have not been authorized
or approved by Tone King in writing. ANY MODIFICATION TO THE AMPLIFIER WILL
VOID YOUR WARRANTY. If this product is defective in materials or workmanship as
warranted above, your sole remedy shall be repair or replacement by Tone King as
provided below.
CAUTION: Do NOT attempt to repair, modify or service your amplifier by
yourself!!! Please read the instruction manual for all safety notifications,
warnings and instructions. Tone King, like all tube amplifiers, have extremely high
voltages that can cause serious injury or death. Do not remove the chassis from the
amplifier. All repair and service work must be performed by Tone King or an authorized
TUBES: Tone King warrants the original purchaser that the specific tubes used in Tone
King will be free from defects in material and workmanship for a period of 90 days from
the original date of purchase. A dated sales receipt will establish coverage under this
warranty. This tube warranty will automatically terminate 90 days after the original
retail sales date. This tube warranty is in lieu of all other expressed warranties. If tubes
fail within the 90 day warranty period your sole remedy shall be replacement of tubes
as provided below.
RETURN PROCEDURES: In the unlikely event that a defect occurs please call us at
818-505-0391. In most cases we can help you diagnose the problem over the phone. If
a product must be sent to us, please follow the procedure outlined below.
• Defective products must be shipped, together with proof of purchase, freight prepaid and insured to the Authorized Tone King Service Center or directly to Tone
a product must be returned to Tone King for warranty replacement/repair, a
Return Authorization Number must be obtained from our Customer Service
Department prior to shipping the product.
• Please contact Tone King Customer Service Department for the Authorized Tone
King Service Center nearest you.
• Products must be shipped in their original packaging or its equivalent; in any
case, the risk of loss or damage in transit is to be borne by the purchaser.
• The Return Authorization Number must appear in large print directly below the
shipping address.
• Always include a brief description of the defect, along with your correct return
address and telephone number.
When calling to inquire about a returned product, always refer to the Return
Authorization Number.
If Tone King determines that the unit was defective in materials or workmanship at any
time during the warranty period, Tone King has the option of repairing or replacing the
product at no additional charge, except as set forth below.
• All replaced parts become a property of Tone King. Products replaced or repaired
under this warranty will be returned via ground shipping within the United
States or Canada - freight prepaid.
King is not responsible for costs associated with expedited shipping, either
to Tone King or the return of the product to the customer.
All warranty repairs outside the United States and Canada must be directed to the
dealer or distributor from which you purchased the product.
INCIDENTAL OR CONSEQUENTIAL DAMAGE: In no event will Tone King be liable for
any incidental or consequential damages arising out of the use or inability to use of any
Tone King product, even if a Tone King dealer has been advised of the possibility of
such damages, or any other claim by any other party. Some states do not allow the
exclusion or limitation of consequential damages, so the above limitation and exclusion
may not apply to you. This warranty gives you specific legal rights and you may also
have other rights which may vary from state to state.
FOR YOUR PROTECTION: Please complete the warranty registration online at within (10) ten days of the date of purchase so that we may contact
you directly in the event a safety notification issued in accordance with the 1972
Consumer Product Safety Act.
CUSTOMER SUPPORT: Our dedicated and friendly staff is ready to help you with any
warranty or product questions you may have. Please call us at
323-277-4100 – Monday – Friday 9AM-4PM (Pacific Standard Time)
Thank you again for choosing Tone King and we look forward to a long relationship!
Premier Builders Guild, LLC
201 S. Highland Avenue, Suite 204
Pittsburgh, PA 15206
We, Premier Builders Guild, in coordination with CES Laboratories, declare, taking this declaration under
our total responsibility, that the below models are in conformity with the provisions of the following EC
Directive(s) when installed in accordance with the installation instructions contained in the product
2006/95/EEC Low Voltage Directive
2004/108/EEC EMC Directive
And that the standards and/or technical specifications have been applied to the following families of
Falcon Grande
Imperial MK II
Sky King
Royalist 15
Royalist 45
Ironm an II M ini
CE Marking Date: 6/17/2015
Signature Date: 8/25/2015
Issue Date: 8/25/2015
Approved By:
Chandra Garudachar
Prepard By:
Jyotsna Bedi
23361 Cypress Pt