Solo 575 XD
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Brand New Krell Solo 575 XD Mono Power Amplifier for sale with Warranty
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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
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 Ω
<0.19% at 20 kHz, at 575 W, 8 Ω
Input Impedance
Single-ended: 100 kΩ
Balanced: 200 kΩ
Input sensitivity
Single-ended or balanced: 3.03 V RMS
Output power
575 W RMS at 8 Ω
900 W RMS at 4 Ω
Output voltage
192 V peak-to-peak
68 V RMS
Output current
22 A peak
Slew rate
40 V/μs
Output impedance
<0.015Ω, 20 Hz to 20 kHz
Damping factor
>530, 20 Hz to 20 kHz, referred to 8
Power consumption
Standby: 1 W
Idle: 131 W
Maximum: 2660 W
Heat output
Standby: 3.42 BTU/hr.
Idle: 448 BTU/hr.
Maximum: 9097 BTU/hr.
Inputs
1 single-ended via RCA connector
1 balanced via XLR connector
1 CAST
Outputs
1 pairs binding posts
Dimensions
17.1 in. W x 7.65 in. H x 21.10in. D
434 mm W x 194 mm H x 536mm D
Weight
80 lbs., 36.4 kg (shipping)
70 lbs., 31.8 kg (unit only)