Alpine 3555 User Manual

SWITCHES AND TERMINALS |
Refer to Fig. 1 on page 3.
@® Acoustic Compensation Switch
@ Input Gain Adjustment Control (Channels 1/2)
® Active Dividing Network Mode Selector Switch (Channels 1/2)
@ Input Mode Selector Switch (Channels 1/2)
® Input Gain Adjustment Control (Channels 3/4)
© Active Dividing Network Mode Selector Switch (Channels 3/4)
@ Input Mode Selector Switch (Channels 3/4)
Input Channel Selector Switch
@® RCA Input Jacks (Channels 1/2)
@ Speaker Output Terminals (Channels 1/2)
@ Fuse Blocks (20A x 2)
@ Battery Lead Terminal
@ Remote Turn-On Lead Terminal
@ Ground Lead Terminal
@ RCA Input Jacks (Channels 3/4)
d Speaker Output Terminal (Channels 3/4)
) Status Monitor
-1=e7-\ OnE (@)\\ oe
@ Improper wiring connections could cause damage to your vehicle's electrical system
and/or the 3555 amplifier. Carefully follow the wiring instructions in this manual.
@ Attaching the battery lead to the positive (+) terminal of the battery should be the last
connection after all other connections are made.
@ Due to the high power output of the 3555, it is important that all connections are clean
and well secured, or damage could result.
@ Be sure that the 3555 is mounted in a way that will allow for free air circulation and
heat dissipation.
@ When changing fuses, be sure to replace the old fuse with one of the same
amperage. Use of improper fuses can lead to serious damage to components.
11

Alpine 3555 Specifications

Power Output

4-channel power output (max)	120W x 4
4-channel power output (into 4 ohms with 0.04% THD)	50W x 4
3-channel power output (into 4 ohms with 10% THD)	100W x 2 and 200W x 1
2-channel power output (into 4 ohms with 10% THD)	200W x 2

Audio Specifications

frequency response	10 Hz to 50 kHz (+0, —1 dB)
signal-to-noise ratio	105 dB (referenced to rated power)
input sensitivity (for rated power output)	100mV to 2V (500 mV at center detent)
input impedance	10k ohms Min.
speaker impedance	4 or 2 ohms (stereo), 4 ohms (bridged)
active dividing network frequency and slope	80Hz, 18 dB per octave
acoustic compensation effect	+5 dB at 40 Hz, —1 dB at 150 Hz

Power

power requirement	11 — 16V DC Negative Ground

Weight and Dimensions

dimensions (W x H x D)	263mm x 55mm x 300mm
dimensions (W x H x D in inches)	10-3/8" x 2-3/16" x 11-4/5"
weight	4 kg (8 Ibs. 13 oz)