Meridian Audio 8000 Specification, Digital inputs and outputs, Signal processing, Output stages

INTRODUCTION

Specification

Digital inputs and outputs

•2 x cable digital inputs, 75Ω, IEC958, 44.1-96kHz. FIFO locks at 44.1, 48, 88.2, or 96kHz ± 150ppm, PCM or MHR encoding.

•176.4kHz or 192kHz supported with special firmware and cabling; details available on request.

•1 x cable digital output, 75Ω, IEC958, providing a copy of the selected input.

Signal processing

•2 x Motorola 56366 running at 100MHz.

•4 x 192kHz/24-bit Delta-Sigma DACs.

•Crossovers linear-phase ±30º at 200Hz and 2.6kHz.

Output stages

•Power amplifiers: Complementary bipolar design, with output-stage error correction and low feedback design.

•Bass: 3 x 150W RMS.

•Mid: 100W RMS.

•Treble: 100W RMS.

Acoustic

•3 Qw way.

•Closed bass enclosure.

•Separate mid/top plywood cabinet.

•Bass drive unit: 6 x 200mm (8") high-efficiency long-throw custom drivers.

•Mid drive unit: 1 x 160mm (6") custom driver.

•Treble drive unit: 1 x 25mm (1") Meridian piston in short horn, composite dome with silver voice-coil.

Characteristics

•Distortion typically <0.01%, or <0.02% up to full power at all frequencies.

•Noise and hum <-94dBr at all volume settings.

•Acoustic output typically >115dB spl @ 1m.

•Acoustic noise <15dB spl @ 1m.

•Frequency response in room response within 3dB, 25Hz-35kHz.

Control

•2 x Meridian Comms.

•9-pin D connector for RS232 PC setup and control, null modem, 9600 baud, 2N1, no handshake.

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