Hertz D-Class 4 Channel Amplifier 4x 105w (DP4300)

•  High-Resolution Audio Certification: Hi-Res Audio certification featuring a frequency response of 10 Hz – 45 kHz.
• Maximum Power in Compact Size: fully bridgeable 4-channel Class-AB 2Ω stable power outputs in a small and compact design.
• Attractive Design: elegant status LED, solid machined terminal block and removable top panel to protect controls and connections.
• Universal Compatibility: operating supply voltage from 9 to 16.5 V and speaker-in input sensitivity from 1.6 to 40 Vrms with integrated Universal Speaker Simulator.
• High-noise rejection: Pre-in and Speaker-in featuring balanced input circuitry.
• Full set of controls: adjustable input levels, high/low-pass crossover filters (50-4000Hz 12dB/Oct.), and bass boost to fine-tune the sound according to your preferences.
• Automatic Remote Turn-On/Off: driven by OEM radio speak
• Full-Range pre-outs: available both when using Speaker-In and Pre-in level inputs.

General Specs

Channels                    4 - 3 - 2

Amp class                   AB


POWER SUPPLY

Nominal power supply voltage (fuse)            11 ÷ 15 VDC (2 x 20 A)

Operating power supply voltage                     6.5 ÷ 16.5 VDC

Idling current                                                      0.8 A

Standby current draw                                       5 uA

Consumption, MIN load impedance (Max Musical Power)       24 A

Remote IN                                                          4 ÷ 15 VDC (1.5 mA)

ART - Automatic Remote Turn on/off from SPK-IN (BTL radio only)       1.5 VDC

Efficiency                                                            59%


AMPLIFIER STAGE
 
Distortion - THD @ 100 Hz, 70% Rated Power              0.015%

Damping factor @ 1 kHz, 1W                                           105

Bandwidth @ -3 dB                                                           10Hz ÷ 45kHz

S/N ratio (A-weighted @ 1 V Input)                                 100 dBA

Minimum load impedance
 
@ 4 Ch:           2 Ω
@ 3 Ch:           2 Ω + 2 Ω + 4 Ω
@ 2 Ch:           4 Ω


Adjustable Crossovers                                                      yes

Output Power

Output power (RMS) @ 1% THD:   
           
4Ch @ 4Ω                                                60 W x 4

4Ch @ 2Ω                                                85 W x 4

3Ch @ 4Ω                                                 60 W x 2 + 170 W x 1

3Ch @ 2Ω / 4Ω                                        85 W x 2 + 170 W x 1

2Ch @ 4Ω                                                170 W x 2

Output Power (RMS) @ 14.4 VDC, THD 10%:
 
4Ch @ 4Ω                                                 75 W x 4

4Ch @ 2Ω                                                 105 W x 4

3Ch @ 4Ω                                                 75 W x 2 + 210 W x 1

3Ch @ 2Ω / 4Ω                                        105 W x 2 + 210 W x 1

2Ch @ 4Ω                                                 210 W x 2

Total Power                                            840 W


INPUTS / FILTERS


Inputs                                                       Pre-In / Speaker-In

Pre Out                                                     Full Range - (Front)

Pre-In sensitivity                                      0.32 ÷ 8 VRMS

Speaker-In sensitivity                              1.6 ÷ 40 VRMS

Front Ch Hi-Pass                                       Full / 50-4000Hz 12dB/Oct.

Front Ch Lo-Pass                                       Full / 50-4000Hz 12dB/Oct.

Rear Ch Hi-Pass                                        Full / 50-4000Hz 12dB/Oct.

Rear Ch Lo-Pass                                        Full / 50-4000Hz 12dB/Oct.

Bass Boost 50Hz                                       0 ÷ 9 dB