857 Reference 2 Channel Power Amplifier
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Ask Us About This Product- Reference 2 Channel Power Amplifier
- Effortless 500W per channel (into 4Ω)
- Balanced and un-balanced inputs
- Balanced design
- WBT output terminals
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. Effortless power delivery of 500W per channel into four ohms and bridgeable to >1.5kW mono into four ohms, the 857 features a totally new design for a Meridian power amplifier, borne out of extensive research, experience and a thorough understanding of psycho-acoustic principles.
The Meridian 857 includes five secondary transformer windings for maximum isolation between low power and high power parts. A ground plane design has also been used for optimal signal handling, while WBT output terminals have been provided to allow bi-wiring. Balanced and unbalanced inputs are provided, with unbalanced inputs converted to balanced before they enter the amplifier using Meridian’s proprietary ‘Superbal’ technology.
Grahams recommend you partner this amplifier with:
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SPECIFICATIONS
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 |
AUDIO INPUTS |
Two XLR balanced inputs Two RCA unbalanced inputs |
CONTROLS | 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 changes colour to indicate amplifier’s status • ‘Standby’ [BLUE] • ‘Normal Operation’ [GREEN]’ • ‘Fans Active’ [AMBER] • ‘Overload’ [RED] |
POWER | Advanced linear power supply: 220-240V AC 50/60Hz |
DIMENSIONS |
HEIGHT: 175mm [6.9in] without feet 195mm [7.7in] with feet WIDTH: 480mm [18.9in] DEPTH: 445mm [17.6in] WEIGHT: 32kg [70.5lbs] |
CONSTRUCTION |
Black finish in aluminium and glass Dedicated rack mount variant (4U high) Custom Meridian Select colours also available |