Specification Sheet

Elettromedia - 62018 Potenza Picena (MC) Italy - T [phone] - F [phone] - elettromedia.com
hertz-audio.com
All Specifications Subject to Change Without Notice_22.A
1. Up to 85% efficiency thanks to ADC (Advanced D-Class) output stage
2. USS (Universal Speakers Simulators) allows SP 4.900 to work with head units
featuring the “speaker load detection” circuit
3. 160 W RMS x 4 (4Ω) with ultra-compact size 211.6 x 130 x 49 / 8.3 x 5.1 x 1.9
(mm/inch)
4. IP55 aluminium chassis for maximum protection against humidity and external
agents
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
product is installed
SP 4.900
D-CLASS FOUR CHANNEL AMPLIFIER
1000 W
A 205 mm 8.07 in.
B 211.6 mm 8.33 in.
C 107 mm 4.212 in.
D 130 mm 5.118 in.
E 49 mm 1.929 in.
User’s Manual
55
SP 4.900
POWER SUPPLY
Nominal power supply voltage 11 ÷ 15 VDC
Pulse Operating voltage 6 ÷ 16 VDC
Idling current 1.1 A
Idling current when off 0.03 mA
Consumption @ 14.4 VDC, MIN load
impedance (Max Musical Power)
50 A
Remote IN 6 ÷ 15 VDC (9 mA)
DC-REM - Remote Turn on by SPK DC
from OUTPUT BTL speakers
3.5 ÷ 7 VDC
AMPLIFIER STAGE
Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power 0,02%
Damping factor @ 1 kHz, 4Ω, 2 VRMS 200
Bandwidth @ -3 dB 10 Hz ÷35 kHz
S/N ratio (A weighted @ 1 V Input) 105 dBA
Pre-In sensitivity 0.6 ÷ 6 VRMS
Speaker-In sensitivity 2.2 ÷ 22 VRMS
Minimum load impedance
@ 4Ch: 2Ω
@ 3Ch: 2Ω + 2Ω + 4Ω
@ 2Ch: 4Ω
Output power (RMS) @14.4 VDC, 1% THD:
4Ch 160 W x 4 (4Ω)
4Ch 250 W x 4 (2Ω)
3Ch 160 W x 2 (4Ω) + 500 W x 1 (4Ω)
3Ch 250 W x 2 (2Ω) + 500 W x 1 (4Ω)
2Ch 500 W x 2 (4Ω)
INPUTS / OUTPUTS / FILTERS
Inputs Pre IN / Speaker IN
Ch 1-2 Filters:
Full
Hi-pass: 50 ÷ 5k Hz @ 12 dB/Oct.
Lo-pass: 50 ÷ 5k Hz @ 12 dB/Oct.
Ch 3-4 Filters:
Full
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]
CEA SPECIFICATION
Output power @ 4Ω
1% THD+N, 14.4 V
145 W x 4 Ch
SN ratio (ref. 1 W output) 81 dBA
SIZE / WEIGHT
Max size (mm/inch) 211.6 x 130 x 49 / 8.33 x 5.118 x 1.929
Weight (kg/lbs) 2.15 / 4.74
GENERAL
IP Rating IP55
Operating Temperature Range 0°C (32°F) to 55°C (131°F)
9
TECHNICAL SPECIFICATIONS
Sealed connectors
Maximum versatility
E