Integrated Amp Reviews

Sidebar 2: Specifications

Description: Solid-state integrated amplifier with iBias, class-AB output stage, and optional D/A module. Analog inputs: 2 balanced (XLR), 3 single-ended (RCA). Optional digital inputs: 1 Toslink optical; 1 S/PDIF coaxial; 2 HDMI (HDMI 2.0a, HDCP 2.2; supports DSD audio and 4K video); 1 USB-A (USB 2.0 host); 1 USB-B (USB 2.0 audio device); 1 Bluetooth with aptX. Outputs: 1 pair speaker outputs; 1 pair single-ended preamplifier outputs (RCA); 1 HDMI output; 1 12V trigger output. Output power: 150Wpc into 8 ohms (21.8dBW), 300Wpc into 4 ohms (21.8dBW). Voltage gain: 25dB, ref. 2V balanced input for full power output. Input overload: 10.4V, balanced; 6.8V, single-ended. Frequency response: 20Hz– 20kHz, +0, –0.22dB; 10hz–100kHz, +0, –0.57dB. THD: 0.015%, 1kHz at 150W into 8 ohms; 0.08%, 20kHz at 150W into 8 ohms. Input impedance: 8k ohms (single- ended), 16k ohms (balanced). Output impedance: 0.035 ohms 20Hz–20kHz. Signal/Noise: >104dB, wideband, unweighted, >117dBA, both ref. full power output. Slew rate: 46V/µs. Power consumption: 11W (standby), 46W (idle), 900W (maximum).
Dimensions: 17.25" (438mm) W × 4.12" (105mm) H × 18.00" (457mm) D. Weight: 52lb (23.6kg), 60lb (27.3kg) shipping.
Finishes: Silver or black.
Serial number of unit reviewed: 631 19050031.
Price: $7000; DAC option adds $1000. Approximate number of US dealers: 55. Warranty: 5 years from purchase date or 6 years from date of manufacture for parts and labor on circuitry.
Manufacturer: Krell Industries, LLC, 45 Connair Road, Orange, CT 96477-3650, USA. Tel: (203) 799-9954. Web: krellonline.com.