Krell Industries KAV 3250 - Manual (Page 25)

4 Krell KAV–2250 and KAV–3250
Unpacking
1. Open the shipping box and remove the top layer of foam. You see these items:
1 amplifier unit (packed in foam end-caps)
1 IEC connector (AC power) cord
1 12 VDC output (12 V trigger) cable
1 T-15 Torx wrench
KAV–2250 fuses:
2 AGC-12 (12-amp)
or
KAV–3250 fuses:
3 AGC-12 (12-amp)
1 packet containing the owner’s reference manual
and the warranty registration card.
2. Locate the cutouts in the foam end caps.
3. Slip hands under cutouts and lift the amplifier straight out of the box.
4. Place the amplifier in a safe location and remove the protective plastic wrapping.
Notes
If any of these items are not included in the shipping box, please contact your
authorized Krell dealer, distributor, or Krell for assistance.
Save all packing materials. If you ship your amplifier in the future, repack the unit in its
original packaging to prevent transit damage. See Return Authorization Procedure,
on page 25, for more information.
The KAV–2250 weighs 64 lbs. and the KAV–3250 weighs 68 lbs. It may be more
convenient for two people to lift the amplifier out of the shipping box.
Krell KAV–2250 and KAV–3250 21
Reconfiguration Options, continued
Connecting the Amplifier Reconfigured for MAT
1. Connect the cable from your source device to the balanced or single-ended input
you have selected to receive the signal. (For example, if you use the switch settings
shown in Figure 6 your source device is connected to input 1.)
2. Connect each amplifier channel output to a separate loudspeaker.
RECONFIGURING THE AMPLIFIER FOR BRIDGED OPERATION
Reconfiguring the KAV–2250 or the KAV–3250 to Bridge Channels 1 and 2
See Figures 8 and 9 on page 20
To send the signal from a source device connected to input 1,
with channels 1 and 2 bridged:
1. For input switch bank 1, push switch 1 up (on).
2. For input switch bank 2, push switch 1 up (on).
3. Push the bridge switch up (on) between input switch banks 1 and 2.
Notes
Amplifier channels 1 and 2 may be bridged. Channel 3 on the KAV–3250
cannot be
bridged.
The unbridged channel on the KAV–3250
may be connected to a separate loudspeaker
for normal operation.
Connecting the Amplifier Reconfigured for Bridged Operation
1. Connect the cable from the input device to the balanced or single-ended input you
have selected to receive the signal.
2. Connect the positive loudspeaker lead to the red binding post on the corresponding
amplifier channel marked “ BRIDGE +.” Connect the negative loudspeaker lead to the
red binding post on the amplifier channel marked “ BRIDGE -.”
IMPORTANT
Tighten binding posts by hand only.