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Front Panel Functions 

 

 

1. 

Input Jack

- High impedance input to the amplifier.  Plug in your instrument here. 

 
2. 

Push/Pull Treble Control

- Adjusts the high frequency response.  In the full counter-clockwise 

position, high frequencies are cut.  In the full clockwise position, high frequencies are allowed to 
pass to the gain stage.  When the knob is in the “out” position, the high frequency response is 
boosted.  This is most effective when the input g

ain is set at 12 o’clock or lower.  The effect is less 

dramatic as the gain control is adjusted past the 12 o’clock position.  
 
3. 

Push/Pull Mid Control

- Adjusts the mid-range response.  In the full counter-clockwise position, 

the tone will be somewhat “scooped” of mid-range response, emphasizing the highs and lows.  In 
the full clockwise position, mid-range frequencies are allowed to pass to the gain stage.  When the 
knob is in the “out” position, the mid frequencies are boosted. 
Mid pull not available in 22 watt version! 
 
4. 

Push/Pull Bass Control

- Adjusts the bass response.  In the full counter-clockwise position, low 

frequencies are cut.  In addition, the response of the treble and mid-range controls is greatly 
reduced.  In the full clockwise position, low frequencies are allowed to pass to the gain stage.  
When the knob is in the “out” position, the low and low-mid frequencies are boosted.  This is a low 
frequency contour switch, changing the low and low-mid response.   
Mid pull not available in 22 watt version! 
 
5. 

Gain

Adjusts the overall gain of the amplifier. Start with this control in the 12 o’clock position. 

Pull function

 

Bypass:

 This feature cuts the EQ section out of the signal path allowing more input 

signal to hit the gain stage. With it engaged it will affect the natural Highs and Mids of the tube at 
the input section. Function is only accessible by footswitch on 22 watt version! 
 
6. 

Master Volume

- Adjusts the output level of the amplifier. Also acts as the send level control for 

any effects inserted in the loop. 

Pull function Lead Channel:

 Function is only accessible by 

footswitch on 22 watt version! 
 
7.

 Lead Gain

- Adjusts the input level (gain) of the lead channel. 

 
8.

 Lead master

- Adjusts the output level of the lead channel. 

 
9.

 Reverb

- The front panel reverb control is the return, or mix, control.  The reverb effect is 

defeated with this control in the full counter clockwise position.  Use in conjunction with the reverb 
drive control (see REAR PANEL FUNCTIONS, next page).  
 

Summary of Contents for Two-Rock Jet 22

Page 1: ...OWNERS MANUAL...

Page 2: ...nce with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers plugs and the point where they exit from the apparatus 9 Protect the power cord from be...

Page 3: ...le and mid range controls is greatly reduced In the full clockwise position low frequencies are allowed to pass to the gain stage When the knob is in the out position the low and low mid frequencies a...

Page 4: ...R AMPLIFIER WITHOUT A PROPER SPEAKER LOAD CONNECTED Be sure to match the impedance of your cabinet with the impedance output of the amplifier 5 Reverb Drive The reverb drive control adjusts the signal...

Page 5: ...ses are 3AG Type 250 Volt SLO BLO Export 100 Volt Domestic Fuses Export 220 230 240 Fuses 2A 22 35 Watt 2A 22 35 Watt 1A 22 35 Watt 2 5 50 Watt 2 5 50 Watt 1 6 50 Watt 3 2 100 Watt 3 2 100 Watt 2 5 10...

Page 6: ...nd connect proper speaker load DO NOT have an instrument connected to the input during the biasing procedure Take unit off standby and allow a few seconds for the circuit to stabilize Set multi meter...

Page 7: ...o bias must not be set higher then 044V as it will cause tube failure Do not set bias higher then recommend levels as it can lead to tube failure or failure within the amplifier amplifiers are brought...

Page 8: ...ning solvents Wipe exterior with a clean dry cloth only Refer servicing to a qualified service technician This is a product of Premier Builders Guild 619 MARTIN AVENUE SUITE 6 ROHNERT PARK CA 94928 70...

Page 9: ......

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