Two-Rock Studio Pro 100, Studio Pro Plus 50, Studio Pro 50, Studio Pro 22, Studio Pro 35 Owner's Manual

OWNER’S MANUAL

Dear Customer,

Thank you for your purchase of a

amplifier from Premier Builders

Guild.

As a discerning guitarist, you know the road to great tone begins with
great components.

Our Classic Design, carefully selected parts and hand-built approach
combine to make an extremely versatile instrument.

Please take the time to read this manual. We hope it will answer any
questions that you may have.

We extend a warm welcome to you as a member of a select group of
musicians who have chosen a amplifier.

Important Safety Instructions

1. Read these instructions

2. Keep these instructions

3. Heed all warnings

4. Follow all instructions

5. Do not use this apparatus near water

6. Clean only with dry cloth

7. Do not block any ventilation openings. Install in accordance 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 being walked on or pinched particularly at plugs and the point
where they exit from the apparatus

10. Only use attachments/accessories specified by the manufacturer

11. Unplug this apparatus during lightning storms or when unused for long periods of time

12. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped

13. CAUTION: To disconnect the unit completely from the MAINS, unplug the unit. Turning the power
switch off does not disconnect the unit completely from the MAINS.

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 gain 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 EQ section is passively bypassed boosting the natural high and
mid frequencies of the guitar. It also increases the amount of input signal that drives the gain
stage. (Push/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. (Push/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.

6. Master Volume

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

any effects inserted in the loop.

7. Reverb Send

- The reverb drive control determines the amount of signal applied to the reverb
tank. Low settings will create a very open, small room reverb effect with a short decay time.
Advancing the control clockwise increases the signal applied to the driver and a very saturated
effect with a sharp attack and a long decay can be obtained.

8. Reverb return

- The reverb return control mixes the reverb effect signal with the dry signal. At
full counterclockwise rotation, the reverb effect is defeated. Using the return control in conjunction
with the reverb drive control, a wide range of natural reverb effects can be produced.

9. Contour

- The contour control is an active wide band sweep. In the 12 o’clock position, the

amps’ frequency response is flat. Counterclockwise rotation reduces high end response and