Rated Power (2 X 4 ohms):
300 watts @ 20 Hz - 20 kHz, both
channels driven at < 0.1% THD
Rated Power (2 x 8 ohms):
200 watts @ 20 Hz - 20 kHz at
< 0.05% THD
Rated Power (1 x 4 ohms):
360 watts @ 1 kHz at < 0.015% THD
Rated Power (1 x 8 ohms):
275 watts @ 1 kHz at < 0.005%
THD
Minimum Load Impedance:
4 ohms
Maximum RMS Voltage Swing:
57 volts
Frequency Response:
10 Hz - 25 kHz; +0, -3 dB at 1 watt
Power Bandwidth:
10 Hz - 100 kHz; +0, -3 dB at rated
power
THD (2 x 4 ohms):
< 0.1% @ 300W from 20 Hz - 20 kHz
with both channels driven
THD (2 x 8 ohms):
< 0.05% @ 200W from 20 Hz - 20
kHz with both channels driven
THD (1 x 4 ohms):
< 0.01% @ 350W @ 1 kHz
THD (1 x 8 ohms):
< 0.005% @ 275W @ 1 kHz
SMPTE IMD:
< 0.1% 60 Hz and 7 kHz, 300W @
4 ohms
Slew Rate:
30V/µs
IA
™
400 SPECIFICATIONS
Damping Factor (8 ohms):
> 450:1 @ 20 Hz - 1 kHz
Input CMRR:
> -65 dB @ 1 kHz
Voltage Gain:
x40 (32 dB) standard, x20 (26 dB)
internally jumper-selectable
Input Sensitivity (x40):
.866 volts @ 4 ohms, 1 volts @
8 ohms
Input Sensitivity (x20):
1.73 volts @ 4 ohms, 2 volts @
8 ohms
Input Impedance:
20 k ohms, balanced
Hum and Noise:
> -108 dB, "A" weighted referenced
to rated power @ 8 ohms
Crosstalk:
> -75 dB, "A" weighted referenced to
rated power @ 8 ohms
Current Draw @ 1/8 power:
670 watts @ 4 ohms, 460 watts @
8 ohms
Current Draw @ 1/3 power:
1,055 watts @ 4 ohms, 650 watts @
8 ohms
Idle Current Draw:
30 watts in Standby Mode
Maximum Current Draw:
1,622 watts @ 4 ohms, 1,010 watts
@ 8 ohms
Thermal Emissions (BTU/hr.):
2,915 @ 1/3 power 4 ohms,
1,591 @ 1/3 power 8 ohms
Due to our efforts for constant improvements,
features and specifications listed herein are subject to change without notice
Cooling:
80mm DC fan, off until heatsinks
reach 45° C, then variable speed
Controls:
2 rear panel attenuators, sequential
turn on/off
Indicator LEDs:
2 Clip, 2 Signal, 2 LFC, 1 Protect,
1 Power
Protection:
Temp., DC, turn-on bursts, subsonic,
incorrect load or short
Connectors:
8-pin plugable signal input, 4-pin
plugable sequential power,
4-terminal barrier strip, IEC AC
power connector
Construction:
18 ga. steel reinforced with 12 ga.
rack ears, extruded aluminum front
panel
Dimensions:
3.48" x 19" x 16.4" (15.8" behind
rear mounting ears)
88.4mm x 483mm x 416.6mm
(401mm behind rear mounting ears)
Gross Weight:
33.6 lbs. (15.25 kg)
Net Weight:
30.2 lbs. (13.7 kg)
®
TM
15
.