Frequency Response

20 Hz to 20 kHz +0, -0.17 dB

<0.5 Hz to 125 kHz +0, -3 dB

Signal to Noise Ratio

>108 dB, wide band,unweighted, referred to full power output

>118 dB, “A”-weighted

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 both channels driven

800 W RMS at 4 Ohms both channels driven

Output Voltage

160 V peak-to-peak

57 V RMS

Output Current

37 A peak

Slew Rate

100 V/µs

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, referred to 8 Ohms

>125, 20 Hz to 20 kHz, referred to 8 Ohms

Transformers

Two 2200 VA (4400VA total) for audio circuitry

One 10 VA for digital control circuitry

Power Supply Capacitance

188,000 µF

Power Consumption

Standby: 2 W

(High-current standby: 260W

Idle: 390 W

Maximum: 3800 W

Heat Output

Stand-by: 7 BTU/hr.

(High-current standby: 890 BTU/hr.)

Idle: 1300 BTU/hr.

Maximum: 6400 BTU/hr.

Inputs

2 single-ended via RCA connector

2 balanced via XLR connector

2 CAST via 4-pin bayonet connector

Outputs

2 pairs Krell binding posts

Dimensions

17.25 in. W x 9.75 in. H x 22.05 in. D

438 mm W x 248 mm H x 560 mm D

Weight

Shipped: 150 lb., 67.9 kg

Unit Only: 135 lb., 61.1 kg