Krell Solo 575 monoblock power amplifier Specifications

Sidebar 1: Specifications

Description: Solid-state class-A monoblock power amplifier. Inputs: 1 unbalanced (RCA), 1 balanced (XLR), 1 CAST. Outputs: 1 pair binding posts. Output power: 575W into 8 ohms (27.6dBW), 900W into 4 ohms (26.5dBW). Frequency response: 20Hz–20kHz, +0/–0.15dB; <0.5Hz–100kHz, +0/–3dB. Gain: 27dB. Output voltage: 192V peak–peak. Output current: 22A peak. Slew rate: 40V/µs. THD at 575W into 8 ohms: <0.03% at 1kHz, <0.19% at 20kHz. Input impedances: 100k ohms (single-ended), 200k ohms (balanced). Input sensitivity: 3.03V RMS (single-ended or balanced). Signal/noise: >108dB, wideband, unweighted, ref. full power output; >115dB, A-weighted. Power consumption: 1W standby, 131W idle, 2660W max.
Dimensions: 16.9" (434mm) W by 7.6" (194mm) H by 20.9" (536mm) D. Weight: 70 lbs (31.8kg) net, 80.1 lbs (36.4kg) shipping.
Serial numbers of units reviewed: 30315060124/125.
Price: $22,500/pair. Approximate number of dealers: 85. Warranty: 5 years from date of purchase, 6 years from date of manufacture.
Manufacturer: Krell Industries, LLC, 45 Connair Road, Orange, CT 06477-3650. Tel: (203) 799-9954. Fax: (203) 799-9796. Web:

Krell Industries, LLC
45 Connair Road
Orange, CT 06477-3650
(203) 799-9954

dave03hd's picture

You keep on bringing up your dartzeels in this interview, comparing it with the Krells. Thats like comparing a Volkswagen to a Porche, come on now! Not even a fair comparison. Personaly I think the Datzeels are overpriced because you have to handle them with such kid gloves or they will break down.

georgehifi's picture

Seeing this more and more, manufacturers under quoting the 8 ohm wattage to make the 4ohm look closer to doubling.
Krell's specified
575W at 8ohm
900W at 4ohm

Stereophile tested
625W at 8ohm
910 at 4ohm

A KSA-250 from 1991 gave
325W at 8 ohms
635W at 4 ohms
1000W at 2 ohms
Now this is almost doing the doubling act.

Cheers George

Ghagherr Withernickers's picture

Sir, and this is the reason I stay with FBP-450MCX mono blocks.

So far, seems to be all the power I'll ever need, and has already sent Watt Puppies to an early grave. (I like to listen loud), and regularly trips the LED overload warnings on my Vandersteens.

I could be tempted to go Halcro monoblocks next, though its a significant step up in price. So I'll mull over that.

I think first I might try the Yamaha NS-5000's. Love that midrange dome, materials, and 12" drivers tops it off for me.