Ground Zero GZA 125.4-30A
The Ground Zero GZA 125.4-30A is a high-performance 4-channel sound quality amplifier built around a Class A/B circuit with variable BIAS adjustment. Filterless signal paths, high-grade OPA 2134 operational amplifiers and MUNDORF audio capacitors keep the signal as pure as possible, while the massive piano lacquer heatsink gives the amplifier a look worthy of its performance.
Key Features
- Class A/B Technology: Sound quality amplifier design with 4 x 125 W RMS at 4 ohms
- Variable BIAS Setting: Fine-tune the operating point for optimal sound character
- Filterless Signal Paths: Purest possible signal transfer without crossover stages
- OPA 2134 Operational Amplifiers: High-performance op amps for low noise and distortion
- MUNDORF Audio Capacitors: Premium components in the signal path
- Soft Delayed Remote Turn-On: Pop-free, gentle power-up
- Gold-Plated Connectors: Reliable, corrosion-resistant connections
- Massive Heatsink in Piano Lacquer Finish: Superior thermal management and premium appearance
Technical Specifications
- Channels: 4
- Output Power (4 Ohm): 4x 125 Watts RMS
- Output Power (2 Ohm): 4x 215 Watts RMS
- Max. Bridged Power (CEA-2006A / 10% THD+N): 2x 480 Watts
- Frequency Response: 5 Hz – 70 kHz
- HPF / LPF / BPF: No / No / No
- Bass Boost / Phase Switch: No / No
- High-Level Input / Auto-On: No / No
- BIAS Setting: Yes
- Dimensions (W x L x H): 195 x 360 x 53 mm (7.70 x 14.17 x 2.10″)
Designed for high-quality sound setups where purity of signal and musicality come first.
