Pre + Finale AUDIO RESEARCH D52B / SP-7 - MADE USA

Descrizione

Coppia di Pre/Finale della Audio Research in perfette condizioni estetiche e di funzionamento. Revisionati da tecnico specializzato. Vendo SOLO la coppia...non singolarmente! Audio Research D52B amplificatore di potenza 50 watts per channel minimum RMS (both channels operating) at 8 ohms from 1 Hz to 20 kHz with less than .25% total harmonic distortion. Typically less than .02% at rated power in midband. Approximate actual power available per channel at "clipping" (both ch. op.): 80 (4 ohms), 60 (8 ohms), 35 (16 ohms) Power bandwidth Frequency response 0.05 Hz to 100 Khz (-3 db) Input sensitivity 1.1 Volts RMS for rated power and load. Input impedance 30 Kohms (nominal). Output taps Output regulation Overall negative feedback Damping factor More than 500 at rated power and load (20 Hz to 20 kHz). (Effective internal impedance approximately .012 ohms.) Distortion Intermodulation distortion: Less than .1% at rated output (56.56 V p to p) and load (SMPTE method). THD and IMD both decrease with decreasing output. Slew rate Rise time Hum & noise Wide-band, unweighted, more than 90 dB below 50 watts at 8 ohms - power line components (hum) more than 80 dB below 50 watts at 8 ohms. Power supply energy storage Power requirements 105-120/210-240 VAC, 50/60 Hz, 600 watts maximum. 120 watts at idle. 300 watts at rated power. Other Dimensions 19" (48 cm) W x 5 ¼" (13 cm) H (standard rack mount panel size) x 10 ½ (26.7 cm) D (front panel back). Handles extend 1 ½" (3.8 cm) forward of the front panel. Weight 39 lbs. (17.7 kg) Audio Research SP-7 The SP-7 stereo preamplifier from Audio Research provides the serious music enthusiast with state-of-the-art performance in the convenience of solid-state packaging and design. Funzionanti al 100% NON SI EFFETTUA SPEDIZIONE. SOLO RITIRO IN SEDE.