Audison Prima AP4 D - 4-Channel Class-D Amplifier with 4x130 W at 2 Ohms
The Audison Prima AP4 D is a compact 4-channel amplifier for clear, controlled power to your speakers. It operates in efficient Class-D, is fully bridgeable, and delivers up to 520 W RMS total power. Thanks to high- and low-level inputs, it fits into both factory and aftermarket systems. Ideal as a powerful expansion for Audison processor amplifiers AP 4.9 bit and AP 5.9 bit.
Technical Highlights
- 4-channel Class-D, fully bridgeable
- RMS power @ 14.4 V (1% THD): 4 × 70 W at 4 Ω, 4 × 130 W at 2 Ω, bridged 2 × 260 W at 4 Ω
- RMS power @ 14.4 V (10% THD): 4 × 90 W at 4 Ω, 4 × 180 W at 2 Ω, bridged 2 × 360 W at 4 Ω
- Total RMS power: 520 W
- Minimum impedance: 2 Ω per channel (4-channel operation), 4 Ω in bridged mode
- Hi-level and Low-level inputs for flexible integration
- Designed as an expansion for AP 4.9 bit and AP 5.9 bit
Performance & Measurements
- Distortion (THD) @ 100 Hz, 4 Ω, 70% nominal power: 0.1 %
- Frequency response (-3 dB, 2 Vrms, 4 Ω): 10–30,000 Hz
- Signal-to-noise ratio (A-weighted @ 1 V): 100 dBA
- Damping factor (1 kHz, 2 Vrms, 4 Ω): 170
- CEA power @ 4 Ω, 1% THD+N, 14.4 V: 70 W × 4
- CEA S/N (referenced to 1 W output): 85 dBA
Connections & Control
- Low-Level (RCA) PRE IN: yes; selectable sensitivity 1.5 / 3 / 4.5 Vrms; input impedance 15 kΩ
- Hi-Level (Speaker-In): yes; selectable sensitivity 3 / 6 / 9 Vrms
- Digital input: no
- Remote IN: 7–15 VDC (1 mA)
- Energy Saving Control/MUTE: via cable from AP 4.9 bit / AP 5.9 bit
- Adjustable crossover: no
Power Supply & Construction
- Operating voltage: 7.5–15 VDC
- Idle current: 1 A
- Idle current in Off: 0.05 mA
- Current draw @ 14.4 VDC, 2 Ω, maximum music power: 27 A
- Fuse: 30 A
- Operating temperature: 0–55 °C
- Weight: 1.33 kg
Installation & Compatibility
- 4-channel operation at 2–4 Ω, bridged operation at 4 Ω
- Seamless expansion for Audison AP 4.9 bit and AP 5.9 bit
- Integration into OEM and aftermarket systems via Hi-Level or RCA
If you're looking for an efficient 4-channel amplifier with clean integration, stable 2-Ω performance, and bridgeable options, the Audison Prima AP4 D will quickly get you there.
