Ground Zero GZPA Reference 4 PURE - 4-Kanal Verstärker

2000 watts
4-channel ultimate high-end amplifier with direct signal path, BIAS control and selected components in uncompromising quality for the highest tonal demands

Equipment features

• High-end Pure SQ amplifier
• 1 ohm stable stereo / 2 ohm bridged
• Symmetrical dual 2-channel direct signal structure
• Shielded and separate dual power supply
• Infinitely variable bias setting class AB -> almost class A
• Adjustable input sensitivity
• Switch-on delay
• Power on and protection indicator
• Overheating, overvoltage, and short circuit protection
• Temperature-controlled fans
• Plexiglass base plate
• White LED interior lighting
• High-strength rhodium cinch sockets
• Selected high-end SANKEN transistors
• Extremely low-distortion LM4562 OP with 0.00003% THD + N
• Ground Zero exclusive Mundorf Mcap capacitors
• Custom-made audio-specific Mundorf secondary capacitors for maximum buffering
• Encapsulated ALPS potentiometers with channel-separated level control and summing function
• Low tolerance Vishay Dale emitter resistors for optimal working point stabilization
• Copper anodized aluminum continuous casting heat sink

Technical specifications

• Model: GZPA Reference 4PURE
• Type: 4 Ch Class AB> A
• Output power at 4 ohms (CEA *): 4 x 150 W.
• Output power at 2 ohms (CEA *): 4 x 270 W.
• Output power at 1 ohm (CEA *): 4 x 425 W.
• Bridge power at 4 ohms (CEA * / 10% THD): 2 x 650 W.
• Bridge power at 2 ohms (CEA * / 10% THD): 2 x 1000 W.
• Variable bias setting: yes
• Illumination: White LED interior lighting
• Dimensions cm / inch: 59 x 6.75 x 23.6 cm / 23.23 "x 2.66" x 9.29 "

* The WRMS performance specifications are based on the CEA standard CEA-2006-A (14.4V, 1% THD)