Duncan Convertible 60 WATT Owner's Manual

If you're like most musicians I know, the first thing you want to do is plug-in your
new amp and start playing - the last thing you want to do is read an owner's
manual. Go ahead and play the amp and see what it can do for you.

Once you've completed the "breaking in" experience, please read through this
manual. The Convertible" amp was designed to give you any sound that's in your
head. To provide that versatility, many unique and exclusive features are built-in.
This manual will show you the easy way of getting a wide variety of great sounds
just by properly setting up the amp.

Enjoy it. If you have any comments about the design of your amp, I'd like to hear
from you. If you have any ideas for modules or other related products, please
write me at the address below.

Thank you,

P.S. If you haven't mailed in your warranty card, please do it now. It may seem
like a hassle, but it's the only way we have to verify warranty status of your amp.

Serial Number
Owned by
Date of purchase
Store purchased from

Unpacking

Inspect your Convertible TM amp for hidden damage that may have occurred in
transit. Your amp was inspected and sound tested before shipment from the
factory.

All claims for shipping damage must be made by the receiver. Save your box and
packing material for evidence of damage if it has occurred.

Packing Materials

The original box and packing materials are specially designed to protect your
amp during shipment. SAVE ALL PACKING MATERIALS. In the unlikely event
that your amp needs to be returned to the factory, the original box and packing
material will be necessary for shipment. These are carrier approved packing
materials and they will insure safe transit back to the factory.

Table of Content s

Front Panel Controls…………………………………………………………..Page 4-5
Rear Panel Controls.…………………………………………….…………… Page 6-7
Preamp Modules……………………………………………………………….Page 8-9
Module Arrangements……………………………...……………………...Page 10- 11
Changing Modules……………………………………..……………………….Page 12
Tubes……………………………………………………..……………..……….Page 13

Trouble Shooting ………………………….......…...................................Page 14-15

Blank Module Arrangements.……………………….………………………...Page 16

1) CHANNEL SELECTOR BUTTON: This push button lets you change channels
manually. The L.E.D.'s show you which channel is "on". If you prefer to use a
footswitch, use the channel selector button to put the amp in the green L.E.D.,
channel first; then the footswitch will operate.

2) INPUT JACK: This is where you plug in your instrument.

3) FOOTSWITCH: This jack accepts a stan dard 1/4" guitar cord and standard

footswitch (not supplied). When hooked up, the footswitch allows you to change
channels and to take advantage of the independent volume and overdrive
controls.

The optional Seymour Duncan footswitch with built -in L.E.D. will glow only when
you’re playing in the red channel.

Some amps produce a loud "pop" through their speakers when channel
switching. The Convertible Amp uses a channel switching circuit built into the
preamp that is isolated from other electronics. No annoying pops will occur when
changing channels.

4) OVERDRIVE, CHANNEL 1 (RED): This control dictates the amount of preamp
distortion and influences the amount the volume you want to add to your signal.

The lowest setting gives the cleanest signal and lowest volume. The highest
setting gives the most distortion and highest volume.

5) VOLUME, CHANNEL 1 INDICATOR (RED):

When your amp is in channel 1 and the power is on, this L.E.D. will glow.
Your Convertible Amp uses L.E.D.'s because L.E.D.'s will last up to 10 times

longer than regular bulbs. Under normal usage. your L E.D.'s should last 10
years or more.

6) VOLUME, CHANNEL 1 (RED): This control sends the signal volume from the
channel ' preamp to the power amplifier. For the cleanest signal, turn the volume

up high and keep the Overdrive low (but not off). For the dirtiest signal, turn the
volume down (but not off) and the Overdrive up high.

7) OVERDRIVE, CHANNEL 2 (GREEN): This control operates exactly the same
way as the Channel 1 (Red) Overdrive. With two sets of Volume and Overdrive

controls you can set the one channel with a clean rhythm sound and a distorted
lead on the other.

8) CHANNEL 2 INDICATOR (GREEN): When your amp is in channel 2 and the
power is on, this L.E.D. will glow.

9) VOLUME, CHANNEL 2 (GREEN): This control operates exactly the same
way as the channel 1 (Red) Volume.
TONE CONTROLS: All three tone controls on your amp are "Activ e". This means
that you can either increase the tone level or decrease it. Most amps incorporate
"Passive" controls that allow you only decrease the tone levels.
The best way to use active tone controls is to start with all indicators at 12 o’clock
boost or cut in the areas you want to change.

10) TREBLE: This control lets you change the high-end response of your amp.
Turning the dial clockwise increases the high-end response up to 15db. Turning
the dial counterclockwise cuts the high-end response up to 15db.

11) MID: This control lets you change the volume of midrange response of your
amp. Turning the dial clockwise increases the level of midrange response up to
15db. Like the other tone controls, 12 o'clock is "flat" - no increase or decrease in
the tone response level.

12) BASS: The control lets you change the level of low-end response of your
amp. Turning the dial clockwise boosts low-end response up to 15db. Turning

the dial counter-clockwise Cuts the level of low-end response.

13) REVERB: This control lets you set the amount of reverberation you want in
your sound. Turn the reverb control clockwise to increase the amount of reverb

and counterclockwise to decrease. All the way counterclockwise is off.
Effects Loop: Use this circuit with your effects for the least amount of hiss. In

older design amps, players had to plug their guitars into effects and plug the
effects into the guitar input jack on their amps. With the Convertible 60 Watt
Amp, you can plug your guitar into the guitar input jack and run your effects
through the Effects Loop for the least noise and least unwanted distortion. Level
output is compatible with rack mount effects, not floor batterytype effects.

14) SEND: The Send on your amp should be connected to the input of your
effect using a normal guitar cable. You can also use this jack to slave into other
amps without affecting the signal in your 60 Watt Convertible Amp.

15) RETURN: The return on your amp should be connected to the output of your
effect using a normal guitar cable. You want the signal to come OUT of your amp

INTO the effect. And OUT of the effect INTO your amp.

16) POWER: This switch is what gets your amp going, and turns it off.