Krell Industries Evolution manual Measurement

(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	>106 dB
power output
“A” weighted	>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	100 kOhms
Balanced	200 kOhms
CAST	70 Ohms
INPUT SENSITIVITY
Single-ended or balanced	3.04 V rms
CAST	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/∝s
OUTPUT IMPEDANCE	<0.055 Ohms at 20 Hz
	<0.064 Ohms, 20 Hz to 20 kHz
DAMPING FACTOR	>145 at 20 Hz
Referred to 8 Ohms	>125, 20 Hz to 20 kHz
POWER CONSUMPTION
Stand-by	370 W
Idle	570 W
Maximum	5000 W
HEAT OUTPUT
Stand-by	1270 BTU/hr.
Idle	1950 BTU/hr.
Maximum	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	190 lb., 86 kg
Unit only	175 lb., 79.2 kg

All operational features, functions, specifications, and policies are subject to change without notification.

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