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Dear Customer,
Thank you for your purchase of a
Two-Rock
amplifier from Two-Rock
Amplifiers, LLC.
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 Two-Rock!amplifier.
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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.!
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Front Panel Functions
1. INPUT: High impedance input to the amplifier. Plug in your instrument here.
2. GAIN: Adjusts the overall gain of the amplifier. Start with this control in the 12 o’clock
position.
3. BRIGHT: Boosts the high frequency response. This is most effective when the input gain is
set at 12 o’clock or lower. The effect is less dramatic as the input gain control is adjusted
past the 12 o’clock position.
4. MID: Boosts the mid range frequency response.
5. DEEP: Boosts the low and low-mid frequencies. This is a low frequency contour switch,
changing the low and low-mid response.
6. TREBLE: Adjusts the high frequency response. In the full counter-clockwise position, high
frequencies are bypassed to ground. In the full clockwise position, high frequencies are
allowed to pass to the next gain stage.
7. MIDDLE: 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 next gain
stage.
8. BASS: 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 next gain stage.
9. MASTER: Adjusts the output level of the amplifier.
10. REVERB: This is the reverb return control which 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 on the back, a wide range of natural
reverb effects can be produced.
11. PRESENCE: Adjusts the contour of high-frequency response. The high-frequency
response will increase as you advance the control clockwise.