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Prima AP4 D
Technical Highlights
- Impressive power of 4 x 130 W @ 2 Ohm, ideal for clear sounds.
- Minimum impedance of 2Ω, bridgeable operation for flexible use.
- S/N ratio of 100 dBA, excellent audio quality even with quiet music.
- More technical details
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Prima AP4 D by Audison
The Audison Prima AP4 D is a 4-Channel Amplifier in Class D with a fully bridgeable architecture. It delivers 4 x 130 W at 2 Ohms and a total power of 520 W RMS; at 14.4 V, it provides 70 W per channel at 4 Ohms and 260 W x 2 bridged at 4 Ohms. The minimum impedance is 2 Ohms per channel and 4 Ohms bridged. Features include Hi Level Input, Low Level Input, and PRE IN via RCA, a Remote IN 7–15 VDC, the Energy Saving Control MUTE control from the AP 4.9 bit or AP 5.9 bit, as well as a power supply of 7.5–15 VDC with a 30 A Fuse. Measurement values include 0.1% THD at 100 Hz at 4 Ohms, a bandwidth of 10–30k Hz, an A-weighted signal-to-noise ratio of 100 dBA, and a damping factor of 170. Additional specifications include a no-load current of 1 A, 0.05 mA in the off state, a current consumption of up to 27 A at 14.4 VDC, and an operating temperature range of 0 to 55 °C. The model is designed as an extension for the Audison Amplifiers AP 4.9 bit and AP 5.9 bit and weighs 1.33 kg.
- 4-Channel Amplifier
- Class D, fully bridgeable
- Total power RMS 520 W
- 4 x 130 W @ 2 Ohms
- 4 x 70 W @ 4 Ohms
- 2 x 260 W bridged @ 4 Ohms
- Channels 4
- Hi Level Input: Yes
- Low Level Input: Yes
- PRE IN RCA
- Digital Input: No
- Adjustable Crossover: No
- Supply Voltage 7.5 - 15 VDC
- Fuse 30 A
- Remote IN 7 - 15 VDC (1 mA)
- Energy Saving Control MUTE from AP 4.9 bit / AP 5.9 bit
- Designed as an extension for the AP 4.9 bit and AP 5.9 bit
- Weight 1.33 kg
- Distortion THD @ 100 Hz, 4 Ohms, 70% rated power 0.1%
- Bandwidth (-3 dB, 2 VRMS, 4 Ohms) 10 - 30k Hz
- S/N ratio A (A-weighted @ 1 V) 100 dBA
- Damping factor (1 kHz, 2 VRMS, 4 Ohms) 170
- Input sensitivity Pre-In selectable 1.5 / 3 / 4.5 V RMS
- Pre-In impedance 15k Ohms
- Input sensitivity Speaker-In selectable 3 / 6 / 9 V RMS
- No-load current 1 A
- No-load current in the off state 0.05 mA
- Current consumption @ 14.4 VDC, 2 Ohms, Max music power 27 A
- Minimum impedance 4 channels 2 Ohms
- Minimum impedance bridged 2 channels 4 Ohms
- Output power RMS @ 14.4 VDC, 1% THD 70 W x 4 @ 4 Ohms
- Output power RMS @ 14.4 VDC, 1% THD 130 W x 4 @ 2 Ohms
- Output power RMS @ 14.4 VDC, 1% THD 260 W x 2 bridged @ 4 Ohms
- Output power RMS @ 14.4 VDC, 10% THD 90 W x 4 @ 4 Ohms
- Output power RMS @ 14.4 VDC, 10% THD 180 W x 4 @ 2 Ohms
- Output power RMS @ 14.4 VDC, 10% THD 360 W x 2 bridged @ 4 Ohms
- CEA output power @ 4 Ohms, 1% THD+N, 14.4 V 70 W x 4
- CEA S/N ratio (ref. 1 W output) 85 dBA
- Ambient temperature range 0 °C to 55 °C

