Krell Industries Evolution - Manual (Page 31)

31
(Specifications continued)
Measurement Evolution 403 Amplifier
FREQUENCY RESPONSE 20 Hz to 20 kHz +0, –0.18 dB
<0.5 Hz to 120 kHz +0, –3 dB
SIGNAL-TO-NOISE RATIO
Wideband, unweighted, referred to full
power output
“A” weighted >106 dB
>116 dB
GAIN 25.4 dB
TOTAL HARMONIC DISTORTION <0.02% at 1 kHz, at 400 W, 8 Ohms
<0.15% at 20 kHz, at 400 W, 8 Ohms
INPUT IMPEDANCE
Single-ended
Balanced
CAST
100 kOhms
200 kOhms
70 Ohms
INPUT SENSITIVITY
Single-ended or balanced
CAST
3.04 V rms
3.04 mA rms
OUTPUT POWER 400 W rms at 8 Ohms
800 W rms at 4 Ohms
1600 W rms at 2 Ohms
OUTPUT VOLTAGE 160 V peak-to-peak
57 V rms
OUTPUT CURRENT 37 A peak
SLEW RATE 100 V/
µ
s
OUTPUT IMPEDANCE <0.055 Ohms at 20 Hz
<0.064 Ohms, 20 Hz to 20 kHz
DAMPING FACTOR
Referred to 8 Ohms
>145 at 20 Hz
>125, 20 Hz to 20 kHz
POWER CONSUMPTION
Stand-by
Idle
Maximum
370 W
570 W
5000 W
HEAT OUTPUT
Stand-by
Idle
Maximum
1270 BTU/hr.
1950 BTU/hr.
7700 BTU/hr.
INPUTS 3 single-ended via RCA connector
3 balanced via XLR connector
3 CAST via 4-pin bayonet connector
OUTPUTS 3 pairs Krell binding posts
DIMENSIONS 17.3 in. W x 9.8 in. H x 26.1 in. D
438 mm W x 248 mm H x 662 mm D
WEIGHT
Shipping
Unit only
190 lb., 86 kg
175 lb., 79.2 kg
All operational features, functions, specifications, and policies are subject to change without notification.
continued