Tube Power Amp Reviews

Description: Tubed dual-mono power amplifier with output power meters (switchable between 15W FS and 150W FS), "Tandem State Imaging," 4 ohm and 8 ohm output transformer taps, and four selectable levels of overall negative feedback, from 0dB to 8dB. Tube complement: four 12AX7s (input); twelve 5881s (output). Rated output power: about 60Wpc into 8 ohms (17.8dBW) (full triode operation, zero feedback) to 150Wpc into 8 ohms (21.8dBW) (full pentode operation, 8dB feedback). Frequency response, THD, S/N ratio, sensitivity, and output impedance not specified. Input impedance: 60k ohms single-ended (110k ohms available with a simple internal modification).
Dimensions: 19" W by 8.75" H by 14.5" D. Weight: 65 lbs.
Serial number of review samples: none found.
Price: $3695 (1997). Warranty: 3 years, workmanship and materials; 1 year, tubes. Approximate number of dealers: 40 (1997).
Manufacturer: Mesa Engineering, 1317 Ross Street, Petaluma, CA 94954. Tel: (707) 778-9505 (hi-fi department). Fax: (707) 433-1904. Web: www.mesaboogie.com.