Sony PCM-1630 Digital Audio Processor – professional CD mastering PCM processor, 16-bit / 44.1 kHz, rack-mount, serial no. 11614 The Sony PCM-1630 is the professional digital audio processor used from the mid-1980s to master CDs. Paired with a U-matic video recorder (e.g. Sony BVU-800 or DMR series), it encoded stereo audio into a video signal for the glass-master production at pressing plants worldwide. It is regarded as the last and most refined of Sony's PCM-16xx mastering processors, and was used for countless classic album masters. Specifications and features 2-channel, 16-bit linear PCM Switchable sampling frequency: 44.1 kHz / 44.056 kHz Front panel: LED peak meters (CH-1 / CH-2) with peak hold, fine/normal scale and adjustable reference marker; sampling frequency, emphasis, mute and CRC indicators; PB mode (RAR A/B); headphone output with level control Modular card cage with plug-in boards: MT, DEC, SIF, ENC, DA and AD (the RAR and AUX slots are empty) Rear panel: analog XLR in/out (CH-1, CH-2), digital I/O (BNC), word sync in/out, composite sync in/out, composite digital A/B, 25-pin status connector Voltage selector (100 / 120 / 220 / 240 V, 50/60 Hz), max. 90 W; rear heatsink 19" rack-mount with chrome carrying handles Made in Japan; serial number 11614