McCormack DNA-1 Power Drive

Customer consignment sale : McCormack DNA-1 power drive amplifier in very good condition. Manual but no remote or original box. Will be carefully packed for shipping.

Has undergone in October 2011 a $1700 Silver level modification by SMc Audio, who were staff from the original McCormack. These mods include :

- Completely recapped with new & better capacitors in the amplifier sections and all new wiring
- Upgraded driver board (new improved resistors / capacitors / etc)
- Upgraded input & output connectors (WBT next gen RCA's & cardas binding posts)
- AC inlet upgrade
- Revision / testing / repair of any other components as necessary

Specifications
Rated power output: 150Wpc RMS into 8 ohms (21.8dBW), 300Wpc RMS into 4 ohms (21.8dBW), 500Wpc RMS into 2 ohms (21.0dBW) (bandwidth and distortion not specified).
Output current: 50A peak per channel.
Input impedance: 100k ohms.
Input sensitivity: 1.2V.
Frequency response: -3dB at 0.5Hz and 250kHz.
Rise time: ±2µs.
Slew rate: 50V/µs.
S/N ratio: 88dB, "A" weighted.
Damping factor: >100 (1kHz, 8 ohm load).
Output impedance: ±0.1 ohm.
DC offset: ±5mV.
Signal polarity: non-inverting.
Dimensions: 19" W by 7" H by 15" D. Shipping weight: 53 lbs.

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