1. Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of your DD Audio D4.800 4-Channel 800W RMS Amplifier. Designed for high-performance audio systems, the D4.800 delivers powerful and clear sound in a compact form factor. Please read this manual thoroughly before installation and use to ensure optimal performance and safety.
2. Característiques del producte
The DD Audio D4.800 amplifier is engineered with advanced features to enhance your audio experience:
- Disseny compacte: Measuring 7 x 4 x 1.7 inches, this amplifier offers a high power-to-size ratio, making it suitable for installations where space is limited.
- Sortida d'alta potència: Capable of producing 200 watts per channel, totaling 800 watts of continuous RMS power.
- Bandpass Crossovers: Allows for precise frequency filtering, optimizing sound delivery to various speakers.
- Indicadors de retall: Visual indicators to help prevent signal distortion and protect your speakers.
- Selecció del mode d'entrada: Versatile input options for different system configurations.
- Encès automàtic: Simplifies integration with factory or aftermarket head units.
- Connexions segures: Features set screw power and speaker connections for reliable power and signal transfer.
- Differential RCA Inputs: Reduces noise and interference for cleaner audio signals.
- Sortides discretes: Garanteix un subministrament d'energia estable i eficient.
- Conformal Coated Components: Internal components are protected, making the amplifier suitable for challenging environments like motorcycles, boats, and powersport applications.
Figura 2.1: Frontal view of the DD Audio D4.800 ampvidador, espectacleasing its sleek, black heat sink design and the DD Audio logo.
Figure 2.2: Size comparison of the DD Audio D4.800 amplifier next to a standard beverage can, highlighting its compact dimensions.
3. Configuració i instal·lació
Una instal·lació correcta és crucial per al rendiment i la longevitat del vostre amplifier. It is recommended that installation be performed by a qualified professional.
3.1. Ubicació de muntatge
Trieu una ubicació de muntatge que sigui:
- Segur i estable, allunyat de les parts mòbils.
- Well-ventilated to allow for proper heat dissipation. Avoid enclosed spaces.
- Protected from moisture and direct sunlight.
- Accessible per cablejat i ajustos.
3.2. Connexions de cablejat
Abans de fer qualsevol connexió, desconnecteu el terminal negatiu de la bateria del vehicle per evitar curtcircuits.
Figura 3.1: posterior view of the DD Audio D4.800 amplifier, showing the various input, output, and control terminals.
- Connexió d'alimentació:
- Connect a 4-gauge power wire from the vehicle's positive battery terminal to the +12V terminal on the amplifier. Ensure an inline fuse (not included) is installed within 18 inches of the battery.
- Connect a 4-gauge ground wire from the GND terminal on the amplifier to a clean, unpainted metal surface on the vehicle's chassis. The ground point should be as short as possible.
- Connecteu un cable d'encesa remota des de la sortida remota de la unitat principal al terminal REM del ampmés viu.
- Connexions d'entrada RCA:
- Connecteu els cables RCA des del pre-emissor de la unitat principalamp outputs to the RCA Input terminals (CH1/CH2, CH3/CH4) on the ampmés viu.
- Adjust the RCA Input Voltage Sensitivity (GAIN) controls to match the output voltage of your head unit. Start with the gain at minimum and slowly increase until the clipping indicator just begins to flash at maximum head unit volume.
- Connexions d'altaveus:
- Connect your speakers to the SPEAKER OUTPUT terminals. The D4.800 supports 4-channel operation at 2 or 4 ohms, or 2-channel bridged operation at 4 ohms.
- Use 12-gauge speaker wire for optimal performance.
- Assegureu-vos de la polaritat correcta (+ a + i - a -) per a totes les connexions d'altaveus.
3.3. Crossover and Input Mode Settings
The D4.800 features adjustable Bandpass, Low-Pass, and Sub-Sonic filters, along with an Input Mode switch.
- Mode d'entrada: Select between 2CH or 4CH input mode depending on your head unit's output configuration.
- Sub-Sonic Filter (HPF): Adjusts the high-pass filter frequency (30 - 5k Hz) to remove unwanted low frequencies from your speakers.
- Filtre de pas baix (LPF): Adjusts the low-pass filter frequency (50 - 5k Hz) to allow only frequencies below the set point to pass through, typically used for subwoofers or mid-bass speakers.
- Bandpass Crossover: By combining the HPF and LPF, you can create a bandpass filter, allowing only a specific range of frequencies to pass.
4. Funcionament del Ampmés viu
Once properly installed, the D4.800 amplifier will power on automatically when it receives a remote turn-on signal from your head unit. The clipping indicators will illuminate if the input signal is too high or if the amplifier is being overdriven, indicating potential distortion.
4.1. Ajust de guany
The gain control (SENS) is not a volume knob. It matches the ampsensibilitat d'entrada del lifter al volum de sortidatage of your head unit. Incorrect gain settings can lead to distortion and potential damage to your speakers or ampmés viu.
- Gireu el amplifier gain controls to their minimum (counter-clockwise) position.
- Set your head unit's volume to about 75-80% of its maximum.
- Interpretar una peça musical dinàmica.
- Augmenta lentament el amplifier's gain control until the clipping indicator just begins to flash. Then, back off slightly until the indicator remains off.
4.2. Crossover Tuning
Adjust the HPF and LPF settings based on the frequency response of your speakers and your desired sound profile. Refer to your speaker manufacturer's recommendations for optimal crossover points.
5. Manteniment
The DD Audio D4.800 ampEl purificador requereix un manteniment mínim. Seguiu aquestes pautes per garantir la seva longevitat:
- Mantenir el ampEl lificador està net i lliure de pols i restes. Feu servir un drap suau i sec per netejar-lo.
- Assegureu-vos una ventilació adequada al voltant amprefrigerador per evitar el sobreescalfament. No bloquegeu les aletes de refrigeració.
- Periodically check all wiring connections for tightness and corrosion. Loose connections can cause performance issues or damage.
- Eviteu exposar el ampLifer a temperatures o humitat extremes.
6. Solució De Problemes
If you experience issues with your D4.800 amplifier, consult the following table before contacting technical support:
| Problema | Causa possible | Solució |
|---|---|---|
| Ampel lifier no s'encén. | No power, ground, or remote signal; blown fuse. | Check all power, ground, and remote wire connections. Verify inline fuse is intact. Test remote wire for 12V. |
| Sense sortida de so. | RCA cables disconnected, speaker wires disconnected, gain too low, head unit issue. | Check RCA and speaker connections. Increase gain slowly. Verify head unit is functioning correctly. |
| So distorsionat. | Gain set too high, improper crossover settings, poor ground connection, speaker impedance mismatch. | Reduce gain. Adjust crossover settings. Ensure solid ground connection. Verify speaker impedance is within ampespecificacions del lifier. |
| Amplifier goes into protect mode. | Sobreescalfament, curtcircuit al cablejat de l'altaveu, baix volumtage. | Ensure adequate ventilation. Check speaker wires for shorts. Verify stable power supply (9-16V). Allow amplificador per refredar. |
7. Especificacions
Detailed technical specifications for the DD Audio D4.800 ampmés viu:
- Vol. Operatiutage: 9 - 16 Volts (DC)
- Prova Voltage: 14.4 Volts
- Output Channel(s): 4
- Wat continutage @ 4ohm: 4 x 125 Watts / 2 x 400 Watts (Bridged)
- Wat continutage @ 2ohm: 4 x 200 watts
- Consum màxim de corrent (Amps): 80 Amps
- Entrada RCA Voltage Sensibilitat: 0.2 - 8 volts
- RCA Input S/N: > 90 dB
- DampFactor: > 100
- THD: < 0.2%
- Resposta de freqüència (Hz): 30 - 30k Hz
- Sub-Sonic Filter (HPF): 30 - 5k Hz
- Filtre de pas baix (LPF): 50 - 5k Hz
- Pass Thru Output: No
- Power Wire Gauge: 4 Gauge
- Calibre del cable de l'altaveu: 12 Gauge
- Dimensions (polzades): 7 x 4 x 1.7 polzades
- Dimensions (MM): 180 x 104 x 43 mm
- Pes del producte: Aproximadament 3 lliures
- País d'origen: EUA
Figura 7.1: Angle view of the DD Audio D4.800 amplifier, showing its compact form factor and robust construction.
8. Garantia i Suport
For warranty information and technical support, please refer to the official DD Audio weblloc web o poseu-vos en contacte amb el vostre distribuïdor autoritzat. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
DD Audio Contact Information: Si us plau, visiteu ddaudio.com per obtenir els recursos de suport i les dades de contacte més actualitzats.
