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Your Fender’s Prosonic™ professional tube
amplifiers feature welded, all-steel chassis
capable of handling the most extre m e
conditions. Covered in genuine Tolex for long
life and lasting good looks, our cabinets are
c o n s t ructed from premium, hand-selected
birch/maple plywood. Only the most road-
worthy components are used in the all-tube
circuitry. Fender's all-tube reverb adds depth
and tone that has kept guitarists smiling for
generations.
The All-Tube Prosonic is available in 2 models,
the two 10-inch speaker combo with Reverb and
the Prosonic Head amplifier. Both versions
f e a t u re a 3-way bias/rectifier switch allowing the
player a choice between class A cathode bias,
class AB grid bias, as well as the sounds of both
tube and solid state rectifiers. The Prosonic is
rated at 60 Watts R.M.S. and includes among its
many features two gain controls. Gain 1
functions as a standard gain stage whereas Gain
2 functions similar to a compre s s o r, adding
sustain while reducing “harshness” when the
volume is incre a s e d .
Equipped with 2 channels, the Prosonic
c o m b o
o ffers the flexibility of accessing each channel
and the reverb effect from the front panel or the
included two-button footswitch.
The Pro s o n i c
head
also offers the flexibility of accessing each
channel from the front panel or the included one-
button footswitch.
1. INPUTS - Input for the your guitar or other
instrument.
2. INPUT 2 - A lower sensitivity (-3dB) input than
INPUT 1.
3. NORMAL/DRIVE - This switch selects between
the NORMAL and DRIVE channels. This switch is
disabled and when the footswitch is plugged
into to the unit.
4. VOLUME - Controls the volume level of the
normal channel.
5. GAIN
1
-
Primary
gain
adjustment
(distortion/sustain) for the DRIVE channel.
6. LED - Indicates operation of the DRIVE channel.
7. GAIN 2 - Secondary gain adjustment for the
DRIVE channel. Acts much like a compressor at
higher settings.
8. TREBLE - Adjusts the high-frequency level.
9. BASS - Adjusts the low-frequency level.
10. MID - Adjusts the middle-frequency level.
11. MASTER - Adjusts the volume level of the DRIVE
channel.
12. REVERB (Combo units only) - Adjusts the reverb
effect level on both channels. Switch ON/OFF
the reverb effect with the footswitch.
13. PILOT JEWEL - Illuminates when the Prosonic is
switched ON and receiving power unless the
lamp has failed. (To replace the lamp, unplug the
amplifier, unscrew the green jewel and replace
the lamp with type T47 bulb.
1 2
3
4
5 6 7
8
9
10
11
12
13
Prosonic Tube Replacement
•
Tubes must be replaced ONLY with the same type as specified on the tube chart inside the cabinet. To check for
tube wear, replace the set in your amp with your spare new tubes as follows:
- First replace the OUTPUT tubes in the amplifier and listen for any improvement.
- Next, re-insert the original output tubes and replace the PRE-AMP tubes and listen for improvement.
- Finally, try replacing BOTH the OUTPUT and PRE-AMP tubes and listen for improvement.
- If any combination of tube replacements is a noticeable improvement, reset the amp to that configuration and buy
another set of replacement tubes as your spare.
