Krell Solo 575 XD Mono Power Amplifier

Krell’s XD (Xtended Dynamics, Dimensionality & Detail) upgrade for the iBias amplifiers takes an already great sounding amplifier and raises its performance to the next level. XD is a classic example of Krell’s continuous R&D efforts reaping benefits across multiple product lines. During the development of the K-300i Integrated Amplifier we discovered substantial sonic improvements by lowering the output impedance below traditional norms. When applying this technique to our existing line of amplifiers, the improvement was so substantial, it deserved its own, unique designation—XD.

It was no simple matter merely lowering the output impedance. This affects the amplifier’s stability and transient response, so each stage prior to the output stage had to be re-tuned to work optimally with the lower output impedance. This lower output impedance exerts more control over the speaker drivers, and damps out unwanted vibrational modes—allowing a more accurate reproduction of the original signal

SPECIFICATIONS:

Frequency Response

20 Hz to 20 kHz +0, –0.15 dB

<0.5 Hz to 100 kHz +0, –3 dB

Signal-to-noise Ratio

>108 dB, wideband, unweighted, referred to full power output

>115 dB, “A”-weighted

Gain

27 dB

Total Harmonic Distortion

<0.03% at 1 kHz, at 575 W, 8 ohms

<0.19% at 20 kHz, at 575 W, 8 ohms

Input Impedance

Single-ended: 100k ohms

Balanced: 200k ohms

Input Sensitivity

Single-ended or balanced: 3.03 V RMS

Output Power

575W RMS at 8 ohms

900W RMS at ohms

Output Voltage

192 V peak-to-peak

68 V RMS

Output Current

22 A peak

Slew Rate

40 V/μs

Output Impedance

<0.015 ohms, 20 Hz to 20 kHz

Damping Factor

>530, 20 Hz to 20 kHz, referred to 8

Krell Solo 575 XD Mono Amplifier

Power Consumption

Standby: 1 W

Idle: 131 W

Maximum: 2660 W

Dimensions

17.1" W x 7.65" H x 21.10" D

434mm W x 194mm H x 536mm D

Weight

80 lbs., 36.4 kg (shipping)

70 lbs., 31.8 kg (unit only)

Warranty

5-year parts and labor

Ask About this product