Specification, Digital inputs and outputs, Signal processing – Meridian Audio 8000 User Manual

Page 11: Output stages, Acoustic, Characteristics, Control

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INTRODUCTION

Specification

Digital inputs and outputs

2 x cable digital inputs, 75

, 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, 75

, 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

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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