Meridian 857 Reference Power Amplifier

Meridian 857 Reference Power Amplifier

Reference Two-Channel Power Amplifier 857

Meridian's most powerful reference two channel amplifier has been designed and built to deliver the best possible Hi-Res audio performance from any high-quality passive loudspeaker system. Its low-feedback construction provides ultra-low distortion, ensuring an unparalleled level of clarity and transparency across the audible range.

Bridgeable to over 1.5Kw, the Meridian 857 features a totally new design for a Meridian power amplifier, borne out of extensive research, experience and a thorough understanding of psychoacoustic principles. 

Features

• Effortless power delivery of 500W per channel into four ohms and bridgeable to >1.5kW mono into 4Ω.
• 1-1000kHz frequency response -/+ 2dB - Perfect for high res audio
• Fan assisted cooling operating at elevated temperatures enabling silent operation in room and rack installations
• Low feedback construction provides ultra-low distortion, ensuring an unparalleled level of clarity and transparency across the audible range.

Specifications

Audio Inputs:

Two XLR balanced inputs

Two RCA unbalanced inputs

Audio Outputs:

250W RMS into 8 Ohms per channel both channels driven

500W RMS into 4 Ohms per channel both channels driven

Bridgeable to >1KW RMS into 8 Ohms

Bridgeable to 1.5KW RMS into 4 Ohms

4 WBT terminals per side allow bi-wiring

Control Signals:

Trigger input [3.5mm 5-30 VDC]

Cooling:

High level of passive cooling for silent in-room running

Six variable speed fans maintain amp functionality if hostile thermal conditions encountered in rack

Display:

Backlit touch sensitive logo changed colour to indicate amplifier's status - 'Standby' - [Blue], 'Normal Operation' - [Green], 'Fans Active' [Amber], 'Overload' [Red].

Dimensions:

Height: 132mm [5.2in] (4U high in-rack)

Width: 440m mm [17.32in]

Depth: 350mm [13.78in]

Weight: Standalone: 32kg [70.5lbs]

Rack: 35kg [77.1lbs]

Power:

Advanced linear power supply: 100V ac 50/60 Hz 110-120V ac 50/60 Hz 220-240V ac 50/60Hz

Construction: 

Black finish in aluminium and glass

Dedicated rack mount variant (4U high)

Custom Meridian Select colours also available