Mark Levinson No.333 power amplifier Specifications

Sidebar 1: Specifications

Description: Solid-state stereo amplifier. Rated output power, 20Hz–20kHz, with no more than 0.5% THD (FTC): 300Wpc minimum continuous into 8 ohms (24.8dBW); 600Wpc minimum continuous into 4 ohms (24.8dBW); 1200Wpc continuous into 2 ohms (24.8dBW). Frequency response: 20Hz–20kHz ±0.05dB. S/N ratio: ᢈdB (ref. 1W). Input impedance: 100k ohms balanced, 50k ohms single-ended. Voltage gain: 26.8dB. Input sensitivity (for 2.8V output): 130mV. Input sensitivity (for full output): 2.25V. Output impedance: <0.05 ohms, 20Hz–20kHz. Damping factor: !w800, 20Hz–20kHz into 8 ohms. Power consumption: typically 350W at idle, 200W in standby.
Dimensions: 17.56" (446mm) W × 19.11" (485mm) D × 10.3" (262mm) H. Shipping weight: 146lb (66.4kg).
Serial number of review sample: 1206.
Price: $8495. Approximate number of dealers: 75.
Manufacturer: Madrigal Audio Laboratories, Middletown, CT 06457 (1996); Mark Levinson, Harman Luxury Audio Group, 8500 Balboa Boulevard, Northridge, CA 91329 (2020). Tel: (888) 691-4171. Web:

Mark Levinson, Harman Luxury Audio Group
8500 Balboa Boulevard
Northridge, CA 91329
(888) 691-4171

Bogolu Haranath's picture

Another great amplifier from the 90's :-) .........

CG's picture


I wonder what the closed loop phase margin is.

mtrot's picture

Hmm, I wonder how this would compare to my Krell FPB 400cx from back around that same time period? Even with its 400 wpc power rating, it doesn't seem like it has all that much bass impact.

a.wayne's picture

Best Krell for bass were the early KSA 100 Mk2’s ..


a.wayne's picture

With that much ringing i would’nt touch it , very unstable IMO ...