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3rd Power KITCHEN SINK User Manual

Made by: 3rd Power
Type: User Guide
Category: Musical Instrument Amplifier
Pages: 15
Size: 2.76 MB

 

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U S E R ’ S   G U I D E

G U I T A R   A M P L I F I E R

KITCHEN SINK

VOLUME

TREBLE

MIDDLE

STANDBY

ON

OFF

ON

KITCHEN SINK

OUTPUT

LEVEL

HYBRID-MASTER

BASS

GAIN

+ GAIN

VOICING

TREBLE

BASS

VOLUME

TOP BOOST

FTSW

NRML

FTSW

PRESENCE

REVERB


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2

Your 3RD POWER Amplifier is a professional musical instrument amplifier. The information 
contained herein is current at the time of publication. However, specifications are subject to 
change without prior notice.

PRECAUTIONS & WARNINGS

READ THESE INSTRUCTIONS.

KEEP THESE INSTRUCTIONS.

HEED ALL WARNINGS.

FOLLOW ALL INSTRUCTIONS.

YOUR AMPLIFIER IS LOUD! 
EXPOSURE TO HIGH SOUND VOLUMES MAY CAUSE PERMANENT HEARING DAMAGE ! 
Practice “safe listening.”

No user serviceable parts inside. Refer service to qualified personnel. Always unplug AC 
power before removing chassis.

IF YOU INTEND ON OPERATING THIS EQUIPMENT OUTSIDE OF THE USA: Always insure 
that unit is wired for proper voltage. Make certain all connections and grounding 
conforms with local standards. Make certain that you have obtained authorization to 
operate prior to connecting to power supply.

WARNING: Vacuum tube amplifiers generate heat. To insure proper ventilation always 
make certain there is at least four inches (100mm) of space behind the rear of the 
amplifier cabinet.

Keep away from curtains or any flammable objects.

WARNING: Do not block any ventilation openings on the rear or top of the amplifier. Do 
not impede ventilation by placing objects on top of the amplifier which extend past the 
rear edge of its cabinet.

WARNING: Do not expose the amplifier to rain, moisture, dripping or splashing water. Do 
not place objects filled with liquids on or nearby the amplifier.

WARNING: Always make certain proper load is connected before operating the amplifier. 
Failure to do so could pose a shock hazard and may result in damage to the amplifier.

Do not expose amplifier to direct sunlight or extremely high temperatures.

Always insure that amplifier is properly grounded. Always unplug AC power cord before 
changing fuse or any tubes. When replacing fuse, use only same type and rating.

Avoid direct contact with heated tubes. Keep amplifier away from children.

Be sure to connect to an AC power supply that meets the power supply specifications 
listed on the rear of the unit. Remove the power plug from the AC mains socket if the unit 
is to be stored for an extended period of time. If there is any danger of lightning occurring 
nearby, remove the power plug from the wall socket in advance.

To avoid damaging your speakers and other music equipment, turn off the power of all 
related equipment before making the connections.

Do not use excessive force in handling control buttons, switches and controls. Do not 
use solvents such as benzene or paint thinner to clean the unit. Wipe off the exterior with 
soft cloth.


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Special Features of the Kitchen Sink™:

• Hand-made in the USA
• Point-to-point turret board construction
• Two amps in one, the Clean Channel features mid-60‘s black-panel American and British AC 

voices as well as a pan-pot for alternating between or blending the voices together

• The Dirty Channel is voiced for British Plexi crunch and ranges from velvety single-coil to 

modern higher gain tones.  A front panel switch unlocks modern gain and sustain tones (foot 
switchable).

• Channel switching is controlled via a front mounted toggle switch or optional foot switch. 
• Studio-quality all-tube spring reverb
• Patented HybridMASTER™ volume control
• Citizen Loop - tube buffered FX loop optimized for use with pedal devices
• Presence control
• Illuminating backlit logo
• 2 x EL34 power tubes, up to 40W (variable down to 1W with HybridMASTER)
• 16, 8 and 4 ohm speaker outputs

Foot-switchable HybridMASTER Bypass (boost function)

Create custom volume level presets perfect for setting up a rhythm and lead volume scene changes 
and recalling them via foot-switch. 

Options:

A three button foot-switch is available separately. This unlocks the remote switchable features of 
the Kitchen Sink. 

Dimensions & Weights:

Subject to change anytime. Please measure your amp carefully if a custom case is being made. These 
measurements do not include handle and rubber feet.

Kitchen Sink Amp Head: Dimensions (WxHxD):  24 x 10.5 x 9.33 in.
Weight:  29.5 lb.

112 Combo: Dimensions (WxHxD):  25 x 20.75 x 11 in.
Weight:  57 lb. 


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Preparing to Operate your Kitchen Sink™

Make certain that all connections are made prior to operating your Citizen Gain Amplifier including 
power cable, speaker connection, instrument cable and instrument connection. Make certain that all 
tubes are installed.

Power Switch (1)

The POWER switch, when placed in the DOWN position, provides AC wall power to the amplifier.

Standby Switch (2) 

The STANDBY switch, when placed in the UP position, puts the amplifier in ‘standby mode’ allowing 
the tubes to warm up. When this switch is place in the DOWN position, the tube circuitry is fully 
functional and ready to amplify your guitar signal.

HybridMASTER™ Control (3)

The MAIN control is always active and sets the absolute volume ceiling.  The foot-switchable HM 
bypass control will be covered later in the manual. HybridMASTER is a patented by 3rd Power.

Presence Control (4)

The global PRESENCE control affects both channels and allows you to adjust the character or 
‘forwardness’ of your sound. Low settings create ‘darker’ tones, whereas higher settings create a 
‘brilliant’ or crisp sound.

Reverb Control (5)

The REVERB control is used to add/blend in the perfect amount of ambience to your sound. The 
reverb effect in this amplifier features pure Class A vacuum tube drive and recovery circuitry to 
deliver an authentic, vintage sounding spring reverb effect.

Front Panel:

1

2

3

4

5


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5

Channel Selector Switch (6)

The dual position channel selector switch lets you choose between  AMERICAN/AC CLEAN or 
BRITISH GAIN channel modules.  When selecting the Clean channel there will be no LED indication.  
Only the clean channel controls will be active.  When set in the 2 position, the second (British Gain 
channel) becomes operational (red LED glows) and the amplifier enters channel switching mode. 

Input Jack (7)

The INPUT jack is where you connect instrument level signals.

Channel Indicator Light (8)

When selecting the British Gain channel, this LED will glow a bright red color indicating that you 
have selected the Higher Gain channel for operation.  When in this mode, only the British Gain 
channel controls will be active.

Front Panel:  Channel Selection

8

7

6


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6

Volume Control (9)

The VOLUME control allows you to adjust the signal level as well as the temperament and 
overall character of your instrument’s sound, from clean to edge of breakup.

Voice Control (10)

The VOICE control allows you to select or blend the preamp voicing of your tone.  When rotated fully 
clock-wise, you will hear a pleasing mid-60’s black-panel American tone.  when rotated fully counter 
clock-wise, you will hear the distinct chime of a mid-60’s British tone.  All other knob positions are 
available to you to explore and create your own unique blended preamp tones.

Top Boost Switch (11)

The TOP BOOST switch allows you to adjust the character of the British AC tones only and has 
no effect on the American voicing. 

Treble Control (12)

The TREBLE control allows you to adjust the character of the higher frequency range. 

Bass Control (13)

The BASS control allows you to adjust the depth of your lower frequencies.

Front Panel:  Clean/Edge Channel

11

10

9

12

13


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Channel Indicator Light (8)

When selecting the Higher Gain channel, this LED will glow a bright red color indicating that you 
have selected the Higher Gain channel for operation.  When in this mode, only the Higher Gain 
channel controls will be active. 

Gain Control (14)

The GAIN control allows you to adjust the signal gain level as well as the temperament and overall 
character of your instrument’s sound. Clean tones are at the lower end of the control dial. Preamp 
saturation, distortion and compression increase as you go higher on the dial.

+

Gain Switch (15)

The +GAIN switch allows you to adjust the response and feel of the preamp. The associated circuitry 
is simultaneously switching additional gain as well as clipping diodes in and out of the circuit.  
These diodes are preset to create an excellent compression effect as well as overall tightness and 
response.  More aggressive, faster playing styles (double-picking, sweep-picking) will appreciate the 
+Gain setting. 

NOTE: 

This circuit has been enhanced to allow for clean guitar tones by simply rolling back on your 

guitar’s volume knob.

Volume Control (16)

The VOLUME control allows you to adjust the signal level that feeds the FX Loop circuitry.  When 
you have the GAIN control at lower settings, you will tend to run this control higher up (1 to 2 
o’clock). When you have the GAIN control at higher settings, you will tend to run this control in the 
mid to lower setting range (10 to 11 o’clock). 

Front Panel: British Gain Channel

16

15

14

8


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Treble Control (17)

The TREBLE control allows you to adjust the character of the higher frequency range. 

Middle Control (18)

The MIDDLE control allows you to adjust the emphasis of the mid-range frequencies.

Bass Control (19)

The BASS control allows you to adjust the depth of your lower frequencies.

Front Panel: British Gain Channel - Tone Controls

17

19

18

VOLUME

TREBLE

MIDDLE

STANDBY

ON

OFF

ON

KITCHEN SINK

OUTPUT

LEVEL

HYBRID-MASTER

BASS

GAIN

+ GAIN

VOICING

TREBLE

BASS

VOLUME

TOP BOOST

FTSW

NRML

FTSW

PRESENCE

REVERB


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AC Fused Input (20)

The AC FUSED INPUT socket (TYPE IEC Grounded) is a required connection for operating your 
CITIZEN GAIN at 120V (standard USA household electrical power). The MAINS FUSE requires a 2.5 
AMP slow blow fuse. This fuse protects your amplifier from voltage peaks from your power outlet.  

H.T. Fuse (21)

The H.T. FUSE requires a 0.3 AMP (300 milliamp) slow-blow fuse. The H.T. FUSE usually blows if your 
power tubes are bad to protect the circuit from being damaged. 

SAFETY NOTES:

• Always plug your amp into a properly grounded 3 prong AC outlet. 
• Never plug your amp into an ungrounded outlet. 
• Never remove or break off the 3rd prong safety ground pin from the power cord. 
• Never use a damaged or ungrounded power cord.
• Always use the proper value and type fuse according to the rear-panel markings.
• Never attempt to replace the fuse while the amplifier is still plugged into the power source. The 

fuse should only be replaced when the power cord has been disconnected from its power source.

Back Panel:

20

21


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16-OHM Speaker Output (22)

The 16-OHM SPEAKER OUTPUT is provided for connecting your amplifier to standard 16 OHM 
speaker cabinet.

8-OHM Speaker Outputs (23)

The 8-OHM SPEAKER OUTPUTS are wired in parallel. They are provided for connecting your 
amplifier to a single 8-OHM speaker, or two 16-OHM speaker cabinets.

4-OHM Speaker Outputs (24)

The 8-OHM SPEAKER OUTPUTS are wired in parallel. They are provided for connecting your 
amplifier to a single 4-OHM speaker, or two 8-OHM speaker cabinets.

SAFETY NOTES:

• Never operate your amplifier without a connected speaker cabinet. This will damage your tubes 

or transformers - or both. 

• Always operate your amplifier with the proper impedance output that matches your speaker 

cabinet(s). 

• In all cases, always use a good quality heavy gauge speaker cable (not a shielded instrument 

cable) to connect your KITCHEN SINK to the speaker cabinet(s).

Back Panel:

22

23

24

160--

FX RETURN

FX SEND

REVERB

FOOT SW.

WARNING: DO NOT HOT-SWAP FX LOOP

2.5A


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Dual Triode “Citizen Loop” Effects Loop (25)

Here's what you need to know about the KITCHEN SINK's tube buffered series effects loop: you don't 
have to change the way you already configure your setup. Run your pedals up front or in the loop - 
it's all good!

However, should you wish to experience STUDIO QUALITY TONE from your pedals, then go ahead 
and run them through the loop. Seriously - try your delay, reverb, phase shifter, chorus, even your 
drive and compressor units through our new loop. You will likely attain a superior level of resolution 
and clarity that our many beta testers referred to as "more 3D." 

OPERATION NOTES:

• After each channel pre-amplifies your guitar signal, they are combined and sent out of the FX 

SEND jack at a nominal -10dBV (just under 1V p-p) matching the levels most vintage and 
modern effect pedals want to see. 

• The FX RETURN path brings your signal back into the amplifier with a tremendous amount of 

headroom (accepting signals as low as -10dBV and as high as +4dBU before the onset of 
compression).

• It can also be a gig-saver too. If your pedal board ever goes down during a performance, you can 

plug your guitar straight into the FX RETURN jack and get through a song with quality tone. 

CAUTION: 

Avoid “hot swap” any cables connected to the loop while the amplifier is operational. Before 
breaking any connections, make sure that your amp is on Standby. Failure to do so may result in a 
loud hum or buzz.

Foot-switching Patch Bay (26)

Each of the three 1/4” jacks are ‘tip/sleeve’ formatted allowing you to access any of the 
foot-switchable features of your KITCHEN SINK remotely with most any 1/4” latching switch.

Back Panel:

26

25


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Tube Layout and Requirements:

V1: JJ ECC83S (Clean Preamp)
V2: JJ ECC83S (Gain Preamp)
V3: JJ ECC83S (Tone-stack)
V4: Sovtek 12AX7LPS (Reverb)
V5: JJ ECC83S (Clean Preamp)
V6: JJ 12AX7 (FX Loop Send and Return)
V7: Sovtek 12AX7LPS (Phase Inverter)
V8 - V9: EL34 output tubes

Bias Adjustment

Your KITCHEN SINK comes from the factory biased for EL34 tubes with an idle current draw of 
-28ma. Bias adjustments are not intended to be user-serviceable. Attempting to adjust the bias 
yourself will expose you to very dangerous high-voltage electricity that can kill you. Special test 
equipment and knowledge of amp circuits and tubes are required to perform this function. DO NOT 
ATTEMPT TO DO THIS YOURSELF. 

Tube Replacement

WE RECOMMEND TAKING YOUR AMPLIFIER TO A QUALIFIED TECHNICIAN FOR SERVICING YOUR 
TUBES. Make certain the amplifier is turned off and has been allowed ample time to cool down. Be 
very careful when you remove the tubes as they might still be very hot! Do not touch tube sockets 
with fingers! Even after turning your amp off and unplugging it from the power outlet there could 
be enough voltage stored in the capacitors to give you a lethal electrical shock. 

WARNING:

• Do not remove the back panel.
• Do not attempt to check or replace tubes yourself. Refer to an authorized service center. 
• Never touch the tubes while the amplifier is turned on or has recently been turned ON. You can 

severely burn your fingers and hands.

Operational Notes:

TUBE CHART for KITCHEN SINK


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Optional Remote Foot-switch:

3

2

1

The optional remote foot-switch allows you to put the KITCHEN SINK’s advanced features under 
foot control.  The unit includes an attached 18’ cable that fans out to three separate 1/4” plugs, each 
marked “I”, “II” or “III” and connects to matching 1/4” input jack on the back panel of the amplifier. 
The unit requires external 9V DC (Boss type) power supply to drive the LEDs.

Channel Select (1)

To prepare your KITCHEN SINK for channel switching operation, select channel 2 via the mini toggle 
switch on the front panel of the amp (a red LED will light up).  Now connect the 1/4” plug labeled “I” 
to the back of the amplifier in the jack labeled “I” and “CHANNEL”.  You may now remotely control 
your channel change function. 

+GAIN (ch. 2 only) (2)

Select the +GAIN mini toggle switch in the on position (a red LED will light up on the front of the 
amp).  Now connect the 1/4” plug labeled “II” to the back of the amplifier in the jack labeled “II” and 
“GAIN BOOST”.  You may now remotely control your channel extra gain function. 

HybridMASTER Bypass (Boost) (3)

Connect the 1/4” plug labeled “III” to the back of the amplifier in the jack labeled “III” and “LEAD 
BOOST”.  You may now remotely control your channel extra gain function.

OPERATION NOTES:

• The KITCHEN SINK is a 40W amplifier.  The design concept is this: bring HybridMASTER (HM) 

down to a suitable rhythm volume (around 25W is ideal (you’ll find this around 10:30 - 11 o’clock 
on the dial) and turn the HM Bypass knob all the way up.  The amp will now toggle between 
-25W and -40W - perfect for live performances.  For TV performances, bring HM down to around 
8 o’clock and HM Bypass to 10 o’clock. The amp will now toggle between `7W and -15W.


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LIMITED WARRANTY

Thank you for choosing 3RD POWER Amplification. 3RD POWER takes great pride in producing high-quality tube 

amplifiers and speaker cabinets. Each product is thoroughly tested prior to shipment.

Your amplifier is warranted to the original purchaser to be free from defects in material and workmanship for a 

period of 10 years from the original date of purchase. An original sales receipt will establish coverage under this 

warranty. This warranty does not cover service or parts to repair damage caused by accident, neglect, abuse, 

normal wear, disaster, misuse, over-powering, negligence, inadequate packing or shipping procedures and service, 

repair or modifications to the product which have not been authorized by 3RD POWER. If this product is defective 

in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided 

below.

Tubes: 3RD POWER warrants the original purchaser that the tubes used in the unit will be free from defects in 

material and workmanship for a period of 90 days from the original purchase date. A dated sales receipt will 

establish coverage under this warranty. This warranty is in lieu of all other expressed warranties. If tubes fail 

within the initial 90 day period your sole remedy shall be the replacement of tubes as provided below.

Return Procedures: In the unlikely event that a defect should occur, follow the procedure outlined below. 

Defective products must be shipped, together with proof of purchase, freight pre-paid and insured directly to 3RD 

POWER. A Return Authorization Number must be obtained prior to shipping the product. Contact 3RD POWER to 

obtain this RA number. Products must be shipped in their original packaging or equivalent. IN any case, the risk of 

loss or damage in transit is borne by the purchaser. The RA 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 RA number. If 3RD POWER determines that 

the unit was defective in materials or workmanship at any time during the warranty period, 3RD POWER has the 

option of repairing or replacing the product at no additional charge, except as set forth below. All replaced parts 

become property of 3RD POWER. Products replaced or repaired under this warranty will be returned via ground 

shipping within the United States, freight prepaid. 3RD POWER is not responsible for costs associated with 

expedited shipping, either to 3RD POWER or returned of the product to the customer.

Incidental or Consequential Damage: In no event will 3RD POWER be liable for any incidental or consequential 

damages arising out of the use or inability to use any 3RD POWER product, even if a 3RD POWER 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 and mail the Purchase Information Card within (10) ten days of the date of 

purchase so that we may contact you directly in the event a safety notification issued in the accordance with the 

1972 Consumer Product Safety Act.

Customer Support: Our dedicated staff is ready to assist you should you have any questions with regard to your 

product. Please call: (615) 945-3393 (9:00 AM to 5:00 PM Monday through Friday, Central Standard Time).


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3RD POWER Amplification LLC

1307 Jewel Street

Nashville, TN  37207

Phone: (615) 945-3393

Web Site

www.3rdPower.com

Saturday, March 30, 2019