Ground Zero Reference 4PURE

The Reference Line stands for selected high-end products with outstanding sound-quality.<br />
The GZPA Reference 4 PURE is a high-end 4-Channel amplifier with a dual-2-channel direct-signal layout.<br />
Because of the separated channels and direct signal paths, it allows an excellent sound quality performance.<br />
The direct signal paths could be realized by leaving out all sound affecting parts, potentiometers and switches.

– High-End pure sound quality amplifier
– 1 Ohm stabile stereo / 2 Ohm bridged
– Symmetrical dual-mono direct-signal layout
– Shielded and separated dual power supply
– Continuously variable Bias Setting Class AB – nearly Class A
– Adjustable input sensitivity
– Soft delayed remote turn-on
– Power & Protection indicator
– Thermal, over current, speaker short, Speaker DC protection
– Temperature-sensitive controlled fan
– Plexiglas bottom plate
– White LED illumination inside
– High quality Rhodium RCA plugs
– Selected high-end SANKEN® transistors
– Low distortion LM4562 OP with 0.00003% THD+N
– Ground Zero exclusive Mundorf Mcap® capacitors
– Special made audio-optimized Mundorf secondary capacitors for maximum buffering
– Capsuled ALPS potentiometers with channel separated level adjustment and summarize-function
– Low-tolerance Vishay Dale emitter-resistors for accurate bias point stabilization
– Copper anodized aluminum strand cast heatsink

Output Power @ 4 Ohm (CEA*) 4 x 150 W
Output Power @ 2 Ohm (CEA*) 4 x 270 W
Output Power @ 1 Ohm (CEA*) 4 x 425 W
Bridge mode @ 4 Ohm (CEA* / 10% THD)2 x 650 W
Bridge mode @ 2 Ohm (CEA* / 10% THD)2 x 1000 W

Dimensions 59 x 6,75 x 23,6 cm.