1. Introduktion
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Hertz DP 4.300 AB-Class 4 Channel AmpLæs venligst denne manual grundigt, før du forsøger at installere eller betjene amplifier to ensure proper function and to prevent damage.
Sikkerhedsoplysninger
- Frakobl altid bilens negative batteripol, inden du påbegynder installationsarbejde.
- Ensure all wiring is correctly routed and secured to prevent damage from moving parts or sharp edges.
- Brug passende ledningsføring til strøm- og jordforbindelser som angivet i installationsafsnittet.
- Udsæt ikke amplifner til fugt eller ekstreme temperaturer.
- Søg professionel hjælp, hvis du er usikker på nogen del af installationsprocessen.
2. Produktet er slutview og funktioner
The Hertz DP 4.300 is a high-performance AB-Class 4-channel amplifier designed for car audio systems. It offers robust power output in a compact design, ensuring high-fidelity audio reproduction.

Billede 2.1: Top view of the Hertz DP 4.300 ampløfter, showcasing its sleek design and central Hertz logo with an illuminated status indicator.
Nøglefunktioner:
- High-Resolution Audio Certification: Features a frequency response of 10 Hz – 50 kHz, meeting Hi-Res Audio standards.
- Compact Size with Maximum Power: A fully bridgeable 4-channel Class-AB amplifier with 2Ω stable power outputs, designed for space-efficient installation.
- Attraktivt design: Incorporates an elegant status LED, solid machined terminal blocks, and a removable top panel to protect controls and connections.
- Universal kompatibilitet: Operates with a supply voltage from 9 to 16.5 V and offers speaker-in input sensitivity from 1.6 to 40 Vrms, including an integrated Universal Speaker Simulator.
- High-Noise Rejection: Equipped with balanced input circuitry for both Pre-in and Speaker-in connections to minimize interference.

Image 2.2: Graphic illustrating key specifications of the DP 4.300, including 2-4 channel mode, AB-Class technology, 60W x 4 @ 4Ω output power, 0.01% THD, and 100 dBA S/N ratio.
3. Opsætning og installation
Proper installation is crucial for optimal performance and safety. Ensure you have all necessary tools and wiring before beginning.
3.1 Montering af Amplivligere
- Vælg et monteringssted, der er tørt, godt ventileret og beskyttet mod direkte sollys eller overdreven varme.
- Ensure sufficient space around the amplifier til luftcirkulation.
- Use the provided mounting hardware to secure the ampfast på en fast overflade.
3.2 Ledningsforbindelser
Refer to the diagrams below for correct wiring connections. Always use high-quality cables.

Image 3.1: Rear panel of the Hertz DP 4.300 amplifier, showing power (GND, REM, +12V), fuse, and speaker output terminals.
Strømforbindelser:
- +12V (strøm): Connect to the positive terminal of the vehicle's battery via an appropriate fuse holder (not supplied) located within 18 inches of the battery.
- GND (jord): Connect to a clean, unpainted metal point on the vehicle chassis. Ensure a solid, low-resistance connection.
- REM (fjerntænding): Connect to the remote output of your head unit. This signal turns the amptænd og sluk for sprøjten med hovedenheden.
Højttalerforbindelser:
- Connect your speakers to the 'SPK OUT' terminals. Observe correct polarity (+/-) for each speaker.
- De amplifier supports 2Ω stable operation. Ensure your speaker impedance matches the amplifiers muligheder.
- For bridged mode operation, consult the specific wiring diagram in the full product manual for your speaker configuration.

Image 3.2: Front panel of the Hertz DP 4.300 amplifier, displaying RCA inputs (Mono In, Front In, Rear In, Pre Out), Speaker-In terminals, Auto Turn-On switch, Level controls, Filter Mode switches, and Frequency/Boost adjustments.
Indgangsforbindelser:
- RCA Inputs (FRONT IN, REAR IN): Connect these to the corresponding RCA pre-outs from your head unit for low-level signal input.
- Speaker-In: For head units without RCA pre-outs, connect the speaker-level outputs directly to the 'SPK-IN' terminals. The amplifier features a Universal Speaker Simulator for compatibility.
- Automatisk tænding: If using speaker-level inputs, the 'AUTO TURN ON' switch can be set to 'ON' to detect DC offset or audio signal for automatic amplifier turn-on, eliminating the need for a remote wire.
4. Betjeningsvejledning
Når installeret, amplifier requires proper adjustment for optimal sound quality.
4.1 Justering af indgangsniveauer (gain)
- Indstil hovedenhedens lydstyrke til cirka 75 % af dens maksimum.
- Spil et dynamisk musikstykke.
- Slowly increase the 'LEVELS' control on the amplifier until you hear slight distortion, then back off slightly until the sound is clear.
- Avoid setting the gain too high, as this can lead to clipping and speaker damage.
4.2 Crossover Settings (Filter Mode)
- The 'FILTER MODE' switches allow you to select Full Range, High Pass (HI), or Low Pass (LO) filtering for each channel pair.
- FULD: No filter applied.
- Hej: Allows frequencies above the set point to pass. Useful for tweeters or full-range speakers.
- LO: Tillader frekvenser under sætpunktet at passere. Nyttig til subwoofere.
- Adjust the 'FREQUENCY' knob to set the desired crossover point (e.g., 80 Hz for subwoofers, 100 Hz for mid-range speakers).
4.3 basforstærkning
- The '50Hz BOOST' control allows you to increase bass output at 50 Hz.
- Use this feature sparingly and adjust carefully to avoid distortion or damage to speakers.
5. Vedligeholdelse
Regelmæssig vedligeholdelse sikrer din bils levetid og ydeevne amplivligere.
- Rensning: Brug en blød, tør klud til at tørre af ampydersiden af apparatet. Brug ikke skrappe kemikalier eller slibende rengøringsmidler.
- Ventilation: Sørg for, at ampLifierens køleribber er fri for støv og snavs for at opretholde korrekt varmeafledning.
- Forbindelser: Kontrollér regelmæssigt alle strøm-, jord- og højttalerforbindelser for at sikre, at de er fastgjorte og fri for korrosion.
6. Fejlfinding
Hvis du oplever problemer med din ampLifier, se følgende almindelige problemer og løsninger:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen strøm / Amplifer tænder ikke | Blown fuse, loose power/ground/remote wire, no remote signal, incorrect Auto Turn-On setting. | Check amplifier fuses and vehicle's main fuse. Verify all power, ground, and remote connections. Ensure head unit is on and sending a remote signal, or check Auto Turn-On switch. |
| Ingen lydudgang | Loose RCA/speaker wires, incorrect input selection, amplifier in protection mode, gain set too low. | Check all input and output connections. Ensure RCA cables are securely connected. Verify amplifier is not in protection mode (status LED). Adjust gain levels. |
| Forvrænget lyd | Gain set too high, incorrect crossover settings, poor ground connection, damaged speakers. | Reduce gain level. Adjust crossover settings. Check ground connection for corrosion or looseness. Inspect speakers for damage. |
| AmpOverophedning af væske | Insufficient ventilation, impedance too low, prolonged high-volume operation. | Sørg for tilstrækkelig luftgennemstrømning omkring amplifier. Verify speaker impedance is within specifications. Reduce listening volume or duration. |
7. Specifikationer
Detailed technical specifications for the Hertz DP 4.300 amplivligere.

Image 7.1: Table detailing the dimensions (mm and inches) and weight (Kg and lbs) of the Hertz DP 4.300 amplivligere.
| Specifikation | Værdi |
|---|---|
| Modelnummer | DP-4.300 |
| Varens vægt | 5.36 pund (2.43 kg) |
| Produktmål (L x B x H) | 11.42 x 7.48 x 1.97 tommer (290 x 190 x 50 mm) |
| Kanaler | 4 |
| Amplivligere klasse | AB-klasse |
| Udgangseffekt (RMS) | 105 WRMS x 4 at 2Ω (Refer to Image 2.2 for 4Ω rating) |
| Frekvensrespons | 10 Hz – 50 kHz (Hi-Res Audio Certified) |
| Operation Voltage | 9 til 16.5 V |
| Speaker-In Input Sensitivity | 1.6 til 40 Vrms |
| Total harmonisk forvrængning (THD) | 0.01% (Refer to Image 2.2) |
| Signal-til-støj-forhold (S/N) | 100 dBA (Refer to Image 2.2) |
8. Garantioplysninger
The Hertz DP 4.300 amplifier leveres med en 1 års producentgarantiDenne garanti dækker materiale- og fabrikationsfejl ved normal brug. Gem venligst din købsbevis i tilfælde af garantikrav.
The warranty does not cover damage caused by improper installation, accident, misuse, abuse, negligence, unauthorized modification, or normal wear and tear. For specific terms and conditions, please refer to the warranty card included with your product or contact Hertz customer support.
9. Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Hertz customer support. You can typically find contact information on the official Hertz webhjemmeside eller gennem din autoriserede forhandler.
When contacting support, please have your product model number (DP-4.300) and proof of purchase readily available.