AP4 D

4 channel amplifier.
AP4 D amplifier was designed as an extension for the AP4.9 bit and AP5.9 bit
amplifiers, offering 4 additional 70 W @ 4 ? amplified channels.

POWER SUPPLY
Voltage: 7.5 ÷ 15 VDC
Idling current: 1 A
Switched off: <0.05 mA
Consumption @ 14.4 VDC 2? Max Musical Power (without CPL): 27 A
Remote IN 7 ÷ 15 VDC (1 mA)
Fuse 30 A
AMPLIFIER STAGE
Distortion - THD @ 1 kHz, 4 O, 90% Output Power: 0.1 %
Bandwidth @ -3 dB, 2 V RMS, 4?: 10 ÷ 30k Hz
S/N ratio @ A weighted, 1,5V, Max Power: 100 dBA
Damping factor @ 1 kHz, 2 VRMS, 4 O 170
Input sensitivity PRE IN: Selectable: 1,5 - 3 - 4,5 V RMS
Input sensitivity SPEAKER IN: Selectable: 3 - 6 - 9 V RMS
Input impedance: 15k ?
LOAD IMPEDANCE (MIN):
• 4 Ch: 1-2-3-4 2?
• 2 Ch: Bridge (1-2) (3-4) 4?
MAX POWER 520 W
OUTPUT POWER (RMS) @ 14.4 VDC, 1% THD:
• 4 Ch @ 4?: 70 W x 4
• 4 Ch @ 2?: 130 W x 4
• 2 Ch - (Bridge 1/2; 3/4) @ 4 W 260 W x 2
OUTPUT POWER (RMS) @ 14.4 VDC, 10% THD:
• 4 Ch @ 4?: 90 W x 4
• 4 Ch @ 2?: 180 W x 4
• 2 Ch - (Bridge 1/2; 3/4) @ 4 W 360 W x 2
GENERAL REQUIREMENTS
Ambient operating temperature range: 0 °C to 55 °C (32°F to 131°F)
SIZE / WEIGHT
Max size (mm/in.): 198 x 45,50 x 134 / 7.8 x 1.8 x 5.27
Weight (kg/lb): 1.33 / 2.93
CEA SPECIFICATIONS
Output power @ 4?, ?1% THD+N, 14.4 V: 70 W x 4
SN ratio (ref. 1 W output): 85 dBA
SIGNAL CONNECTIONS
PRE IN RCA
SPEAKER IN wired
MUTE (Energy Saving Control) wired from AP4.9 bit / AP5.9 biT