
Elettromedia - 62018 Potenza Picena (MC) Italy - T +39 0733 870 870 - F +39 0733 870 880 - elettromedia.com
All Specifications Subject to Change Without Notice_23.A
1. Up to 87% efficiency thanks to ADC (Advanced D-Class) output stage.
2. USS (Universal Speakers Simulators) allows SP 4.500 to work with head units
featuring the “speaker load detection” circuit.
3. 90 W RMS x 4 (4Ω) with ultra-compact size: 192.7 x 130 x 49 / 7.59 x 5.12 x 1.93
4. IP55 aluminium chassis for maximum protection against humidity and external
5. No cooling fan to prevent internal accumulation of dirt.
6. Sealed power cord, line inputs and speaker outputs to prevent oxidation.
7. Crossovers filters and controls on a single side to facilitate calibration when the
8. Balanced fully-differential high-noise rejection inputs.
9. ART (Automatic Remote Turn-On/Off) automatically turns on/off theamplifier
when the OEM head-unit turns on/off (can be enabled/disabled).
Nominal power supply voltage 11 15 VDC ÷
Pulse Operating voltage 6 16 VDC÷
Idling current when off 0.03 mA
Consumption @ 14.4 VDC, MIN load
impedance (Max Musical Power)
Remote IN 6 15 VDC (9 mA)÷
DC-REM - Remote Turn on by SPK DC
from BTL speakers outputs
Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power <0.02%
Damping factor @ 1 kHz, 4Ω, 2 VRMS >150
Bandwidth @ -3 dB 10 Hz 35 kHz÷
S/N ratio (A weighted @ 1 V Input) 100 dBA
Pre-In sensitivity 0.6 6 VRMS÷
Speaker-In sensitivity 2.2 22 VRMS÷
Output power (RMS) @14.4 VDC, 1% THD:
3Ch 80 W x 2 (4Ω) + 330 W x 1 (4Ω)
3Ch 145 W x 2 (2Ω) + 300 W x 1 (4Ω)
INPUTS / OUTPUTS / FILTERS
Inputs Pre IN / Speaker IN
Hi-pass: 50 5k Hz @ 12 dB/Oct.÷
Lo-pass: 50 5k Hz @ 12 dB/Oct.÷
Hi-pass: 50 5k Hz @ 12 dB/Oct.÷
Lo-pass: 50 5k Hz @ 12 dB/Oct.÷
Bass Boost 45Hz (adjustable) OUT 3 - 4 (0 8 dB) [LP = ON only]÷
SN ratio (ref. 1 W output) 81 dBA
Max size (mm/inch) 192.7 x 130 x 49 7.59 x 5.12 x 1.93/
Weight (kg/lbs) 1.9 4.18/
Operating Temperature Range 0°C (32°F) to 55°C (131°F)