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1. Alesis RA500 Amplifier - Untested No Display

   Sold for parts. Powers on but there is no display on screen. Haven't tested further.

   eBay

2. Alesis RA500 Power Amplifier

   Signal to noise ratio: 105dB. Power output: 150 watts per channel into 8Ω (stereo), 500 watts into 8Ω (mono). Speaker load impedance: 4Ω (minimum). Input sensitivity: 1.23V. Damping factor: 200.

   eBay

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