GZTA 4125X-B Amplifier – Class A/B 4 Channels | 130W RMS per Channel | Tri-Modal Crossover

Amplifier 4 channels Class A/B from the premium Ground Zero series, designed for systems high fidelity multi-components . Ideal for those looking for analog warmth of class A/B with configuration versatility.

📊 Detailed Technical Specifications:

🔧 Exclusive Features:

✔ Tri-Modal Crossover System – Configure each channel pair as:

• HPF (for tweeters)

• LPF (for subwoofers)

• GMP (for medium)
  ✔ Linear Power Supply with Toroidal Transformer – Lower noise than switching power supplies
  ✔ CNC Anodized Heatsink – 35% more efficient heat dissipation
  ✔ Gold Terminals – Better conductivity for Hi-Fi systems

🎛️ Precision Controls (per Channel):

• Filters: Continuous adjustment 50Hz-5kHz

• Bass Boost: Center at 45Hz (0-12dB)

• Operating Modes:

  • Stereo (4 independent channels)

  • Bridged (2 high power channels)

🔌 Premium Connections:

• RCA inputs (low level)

• Bridged Outputs (for 320W per pair)

• 8AWG Terminals (robust food)

🚗 Recommended Settings:

1. Complete 3-Way System:

   • Channels 1/2: Tweeters (HPF 3.5kHz)

   • Channels 3/4: Mid (BPF 80Hz-3.5kHz)

   • • External subwoofer

2. Power + Sub Configuration:

   • Channels 1/2: Speakers (HPF 80Hz)

   • Channels 3/4: Bridged to sub (LPF 80Hz)

⚡ Electrical Requirements:

• Minimum Wiring: 8 AWG (for 2Ω)

• Fuse: 80A (external)

• Stable Voltage: 13-14.4V DC

📦 Includes:

• GZTA 4125X-B Amplifier

• Mounting screws

• Detailed technical manual

💡 Pro Tips:

• For best staging :

• Dephase tweeters (0°-180°)

• Use time alignment in the processor
  • Ideal Diet :

• 1F capacitor for every 300W

• AGM Battery 70Ah+