Duncan BASS 400 X 2 Owner's Manual

OWNER’ S MANUAL

for the

BASS 400 X 2

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 amp is designed to give you versatility from functional controls and switches. 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 here from
you. If you have any ideas for other related products, please write me at the address
below.

Thank You.

Seymour Duncan

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.

Specifications
Bass 400 x 2

Power: Bi-amp mode: 400 watts bottom end into 4 ohms:

400 watts high end into 4 ohms.
Dual mono mode: 400 watts x 2 mono channels into 4 ohms.
Bridge mode: 600 watts into 8 ohms.
All power specifications at 4 ohms, less than .05% distortion.

Power Out: 400 watts @ 120 VAC
Thd: = full power: .2%
Slew rate: 50V/ms
Power bandwidth: 10hz to 100 khz +/- 3db
S/N ratio: (preamp and power amp) 84dB
S/N ratio: (power amp only) 90dB
Input impedance: 1 megohm
Effects Loop: (Output impedance): 10k ohms
Effects Loop: (Input impedance): 50k ohms
Dimensions: 5.5" x 10.5" x 17.2"
Weight: 36 lbs.
Power requirements: 1200 watts line current required for 400 watts output,

with both channels running.

Out: 120 VAC, internally selectable for lOOv/50hz or 240v/50hz.

(All specifications subject to change without notice.)

WARNINGS

- Make all speaker connections before plugging unit in.

- Do not disconnect the speaker while the amp is turned on.

- Do not restrict air movement around the fan intake or the air outlet on the back of the
amp.

- Do not test the amplifiers operation by touching the tip of the input cable with your
finger. This is a very wide bandwidth amp and the extreme amount of radio frequency
energy caused by doing this can cause damage to the amp and your speaker system.

- To reduce the risk of fire or electrical shock, DO NOT expose this amplifier to rain or
moisture.

Unpacking

Inspect your bass 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 .