Tube Power Amp Reviews

Description: All-tube monoblock power amplifier with class-AB, push-pull output stage. Output power (at 1.5% THD): 240W into 5 ohms (21.8dBW) (tetrode mode); 100W into 5 ohms (18.0dBW) (triode mode). Input impedance: 100k ohms. Output impedance: transformer secondary set to 5 ohms. S/N ratio: 80dB. Input sensitivity: 1V for full output. Power consumption: 30W, standby mode; 815W at full power.
Dimensions: 19" W by 11" H by 13" D. Weight: 63 lbs each.
Serial numbers of units tested: R24025 & R24026.
Price: $9000/pair (1996); no longer available (2009). Approximate number of dealers: sold factory-direct only.
Manufacturer: Manley Labs, 13880 Magnolia Ave, Chino, CA 91710. Tel: (909) 627-4256. Fax: (909) 628-2482. Web: www.manleylabs.com.