VTC Pro Audio V22 Manuel De L'utilisateur page 8

Impedance Mode Switch
The V22 comes factory configured to deliver it's maximum power into a 2-ohm load. However, it
is possible to switch your V22 to deliver it's maximum power into 4-ohms. The switch is lo-
cated on the rear panel above the line cord. 2-ohm mode is selected if the switch is in the LEFT
position, 4-ohm mode is selected if the switch if the switch is in the right position. To prevent
damage to the amplifier's circuitry ONLY switch modes when the amplifier's power switch is OFF!
This feature is intended to be used where the load is known.
Power Output
6
PLEASE NOTE: In the 4-ohm configuration, the minimum load per channel is 4-ohms
and the minimum BRIDGE load is 8–ohms. Attempting to operate into 2-ohm loads
while in the 4-ohms configuration will cause the amplifier to go into current limit,
thermal limit, or both. The power specification chart in this manual shows the powers
that can be achieved for various configurations and loads.
All values are in WATTS. Measurements were made at the 0.1% distortion point.
Some CONTINUOUS AVERAGE POWER measurements required line currents great-
er than 15 Amps. The amplifier under test was plugged into an IDEAL POWER LINE
consisting of a REGULATED 120 VAC RMS 60 Hz pure sine wave. Ordinary AC "wall
outlet" lines will always exhibit varying and unpredictable amounts of sag. To pro-
duce objectively verifiable and accurate specifications these unknown factors must
be eliminated by using an ideal AC line. When using an ordinary electrical outlet, it
will usually be possible to get 1200 Watts when the V22 is bridged into 4 ohms. The
BURST measurements use a 10mS burst at 1KHz with a 1/8 second pause between
bursts. The 1KHz burst represents the maximum possible sine wave output power.
One Channel Driven
Load 1KHz
(ohms) Cont. Avg.
2-ohm Mode
8 330
4 550
2 850
Both Channels Driven
Load 1KHz
(ohms) Cont. Avg.
2-ohm Mode
8 250
4 460
2 650
Bridge Mode
Load 1KHz
(ohms) Cont. Avg.
2-ohm Mode
8 950
4 1300
2 n/a
1KHz 1KHz
Burst Cont. Avg.
2-ohm Mode 4-ohm Mode
350 425
650 725
1050 n/a
1KHz 1KHz
Burst Cont. Avg.
2-ohm Mode 4-ohm Mode
350 400
650 615
1050 n/a
1KHz 1KHz
Burst Cont. Avg.
2-ohm Mode 4-ohm Mode
1200 1250
2100 n/a
n/a n/a
1KHz
Burst
4-ohm Mode
475
870
n/a
1KHz
Burst
4-ohm Mode
450
800
n/a
1KHz
Burst
4-ohm Mode
1600
n/a
n/a