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Power amplifiers mono — Krell Solo 375 XD
Description, images, technical data and specifications
Krell Solo 375 XD
Image source — © Krell
The Solo 375 XD is a monoblock power amplifier from Krell, sitting below the KMA I800 with a substantial maximum current specification. The Solo 375 XD brings Krell's uncompromising current-delivery engineering to a serious monoblock format.
Key specs that matter
Input sensitivity is 2,450mV, with input impedance at 200,000 ohms balanced or 100,000 ohms single-ended. Output impedance is a remarkably low 0.018 ohms. Maximum current is a substantial 17 amps. Output power is 375W into 8 ohms, rising to 600W into 4 ohms. Gain is 27dBu. Frequency response spans a wide 0.5Hz to 100,000Hz within plus-or-minus 3dB. Signal-to-noise ratio exceeds 103dB, with total harmonic distortion plus noise under 0.03% at 100% global feedback. Damping factor exceeds an extraordinary 440. At 434 x 194 x 536mm and 27.3kg, the Solo 375 XD maintains a more compact monoblock chassis than the flagship KMA I800.
Sound and use context
Expect exceptionally clean, tightly controlled amplification reflecting the extraordinary over-440 damping factor combined with the substantial 17-amp maximum current, consistent with Krell's broader uncompromising current-delivery engineering philosophy.
Pairing
As a monoblock, two units are needed for a stereo pair, and the extraordinary over-440 damping factor handles demanding loudspeaker loads with exceptional control.
Alternatives
Krell's own KMA I800 offers Krell's absolute current flagship alternative within the same broader monoblock catalogue.
Key specs that matter
Input sensitivity is 2,450mV, with input impedance at 200,000 ohms balanced or 100,000 ohms single-ended. Output impedance is a remarkably low 0.018 ohms. Maximum current is a substantial 17 amps. Output power is 375W into 8 ohms, rising to 600W into 4 ohms. Gain is 27dBu. Frequency response spans a wide 0.5Hz to 100,000Hz within plus-or-minus 3dB. Signal-to-noise ratio exceeds 103dB, with total harmonic distortion plus noise under 0.03% at 100% global feedback. Damping factor exceeds an extraordinary 440. At 434 x 194 x 536mm and 27.3kg, the Solo 375 XD maintains a more compact monoblock chassis than the flagship KMA I800.
Sound and use context
Expect exceptionally clean, tightly controlled amplification reflecting the extraordinary over-440 damping factor combined with the substantial 17-amp maximum current, consistent with Krell's broader uncompromising current-delivery engineering philosophy.
Pairing
As a monoblock, two units are needed for a stereo pair, and the extraordinary over-440 damping factor handles demanding loudspeaker loads with exceptional control.
Alternatives
Krell's own KMA I800 offers Krell's absolute current flagship alternative within the same broader monoblock catalogue.
Specifications
Model name
Solo 375 XD
Input sensitivity (mV)
2450
Input impedance (balanced) (Ω)
200 000
Input impedance (single-ended) (Ω)
100 000
Output impedance (balanced) (Ω)
0.018
Output impedance (single-ended) (Ω)
0.018
Max current (A)
17
Output power (8Ω) (W)
375
Output power (4Ω) (W)
600
Gain (dBu)
27
Frequency response low +/- 3dB (Hz)
0.5
Frequency response high +/- 3dB (Hz)
100 000
Signal to Noise Ratio (dB)
>103
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
<0.03
Max power consumption (W)
1150
Damping factor
>440
Dimensions (mm)
434 x 194 x 536
Weight (kg)
27.3
Official link
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