Hertz SP4.500 Amplifier (** Upgrade to the SP900)
Specs:
Channels 4 - 3 - 2
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
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
IP Rating IP55
Operating Temperature Range 0°C (32°F) to 55°C (131°F)
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
Adjustable Crossovers yes
Inputs/Filters:
INPUTS:Pre IN / Speaker IN
Ch 1-2
FullYes
Hi-pass: 50 ÷ 5k Hz @ 12 dB/Oct.
Lo-pass: 50 ÷ 5k Hz @ 12 dB/Oct.
Ch 3-4
FullYes
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]
Output Power:
Output Nominal Power (RMS) @ 14.4 VDC, THD 1%:
4 Ch: 90 W x 4 (4Ω)
4 Ch: 150 W x 4 (2Ω)
3 Ch: 80 W x 2 (4Ω) + 330 W x 1 (4Ω)
3 Ch: 145 W x 2 (2Ω) + 300 W x 1 (4Ω)
2 Ch: 300 W x 2 (4Ω)
Total: 600 W
Upgrade to the SP4.900
Specs:
Channels 4 - 3 - 2
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
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
IP Rating IP55
Operating Temperature Range 0°C (32°F) to 55°C (131°F)
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
Adjustable Crossovers yes
Output Power:
Output Nominal Power (RMS) @ 14.4 VDC, THD 1%:
4 Ch: 160 W x 4 (4Ω)
4 Ch: 250 W x 4 (2Ω)
3 Ch: 160 W x 2 (4Ω) + 500 W x 1 (4Ω)
3 Ch: 250 W x 2 (2Ω) + 500 W x 1 (4Ω)
2 Ch: 500 W x 2 (4Ω)
Total Power 1000 W
INPUTS / FILTERS:
INPUTS: Pre IN / Speaker IN
Ch 1-2
Full -
Hi-pass 50 ÷ 5k Hz @ 12 dB/Oct.
Lo-pass: 50 ÷ 5k Hz @ 12 dB/Oct.
Ch 3-4
Full -
Hi-pass 50 ÷ 5k Hz @ 12 dB/Oct.
Lo-pass 50 ÷ 5k Hz @ 12 dB/Oct.
Bass Boost 45Hz (adjustable) (0 ÷ 8) dB [LP = ON only]
Optional S8 DSP
Specs:
Nominal Power supply voltage / fuse: 7 ÷ 20 VDC / 1A
Pulse operating voltage: 5 ÷ 24 VDC
Idling current: 0.34 A
OFF current (ART= OFF): <80 uA
OFF current (ART= ON): <80 uA
Remote IN 6 ÷ 20 VDC (10 mA)
Remote OUT 4 ÷ 20 VDC (150 mA)
ART - Automatic Remote Turn on/off from BTL speaker outputs (selectable): 1.5 ÷ 7 VDC
Output Stage:
Analog outputs (rca) 8 channels
Max output level (rms) @ 0.05% THD 4V
Analog outputs management The DSP controls each output channel: gain, crossover, EQ, delay, polarity
Bandwidth 10Hz – 40KHz (+/-3db)
Signal to noise ratio (A weighted) 105dBA (Analog Input) 112dBA (Digital Input)
THD+N (@ 1Vrms out, @ 1Khz) <0.005%
Crosstalk (channel separation) @ 1KHz >95dBA
Input Stage:
Analog low level Inputs 6 ch. (Differential input) (Molex microfit to RCAs)
Analog high level Inputs 6 ch. (Differential input) (Molex microfit to tripped ends) + USS (Universal Speakers Simulator)
Digital inputs Yes (Coaxial SPDIF; up to 24bit 96KHz) (Molex microfit to RCA)
Input sensitivity (low level) 0.8V – 6V RMS
Input sensitivity (high level) 2.5V – 21V RMS
Analog inputs management Audio input routing matrix type
Analog inputs eq 7 bands paragraphic for each input channel
ART Automatic Remote Turn-On/Off with Speaker-In
Digital Signal Processor:
Sample rate 96KHz
Bit depth 24
Output equalizer 15 bands per channel w/ adjustable Q and Frequency
Equalizer resolution 1/10th dB per step +12dB / -12dB
Time alignment (distance) 0 ÷ 468.4 cm / 0 ÷ 184.4 inches
Time alignment (time) 0 ÷ 13.5ms
Time alignment (step) 0,08 ms; 2,8 cm / 1.1 inch
Time alignment (fine set) 0,02 ms; 0,7 cm / 0.27 inch
Crossovers AP/HP/LP/BP all channels
Crossover type Butterworth, Linkwitz-Riley, Bessel (All Channels)
Crossover slope From 6dB/oct. until 30dB/oct. (6dB step)
Crossover steps 120 steps 20Hz-20KHz
Mute function Each channel individually, or all channels.
Presets 4 presets
Presets selection 2 specific wires to control the 4 presets selection by extarnal switches.
Input selection by wire One specific wire to select the desired input between Analog or Digital.
Audio signal compressor on output stage Yes (enable/disable)
DSP chipset Analog Device: ADAU1451
DSP management by bt app (iOS/ Android) :
1. CONFIGURATOR mode Mainly it’ll allow the DSP tuning. You can manage every DSP functon through your smartphone/ tablet/PC/MAC.
2. DRC mode The BT device becomes a remote control by using the dedicated app with a simple graphical user interface. Manage volume level, SUB level, select different setup files, upload a new setup file.
Setup file sharing via bt Upload a setup file via BT through the BT APP when in “Configurator” or “DRC” mode.
DSP management by pc / mac / ios / android Microsoft Windows (32/64 bit): Windows 10 (USB and BT BLE) Windows 11 (USB and BT BLE) Mac Os: 10.13 Hight Sierra or later (USB and BT BLE)
Physical Specs:
Max size W x H x D (mm/inch) 130 x 33.8 x 88,3 / 5.11 x 1.44 x 3.47
Weight (kg/lbs) 0,66 / 1.45
