Tube Power Amp Reviews

Description: All-tube amplifier with class-AB, push-pull output stage. Output transformer tap: 5 ohms (factory-set). Output power (at 1.5% THD): 145Wpc into 8 ohms (21.6dBW), 180Wpc into 5 ohms (20.5dBW), 169Wpc into 4 ohms (19.3dBW). Frequency response: 10Hz–40kHz ±0.5dB. Input sensitivity: 1.4V for full output. Input impedance: 100k ohms. S/N ratio: 80dB ref. 180W into 5 ohms. Power consumption: 240W quiescent, 480W full-power.
Dimensions: 19" W by 7" H by 13" D. Weight: 48 lbs.
Serial numbers of units tested: MANEM175007/08.
Price: $4800/pair (1995); no longer available (2009). Approximate number of dealers: factory-direct only.
Manufacturer: Manley Laboratories, Inc., 13880 Magnolia Avenue, Chino, CA 91710. Tel: (909) 627-4256. Fax: (909) 628-2482. Web: www.manleylabs.com.