Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of your DD Audio DM2500A Monoblock Amplifier. The DM2500A is a high-performance Class D amplifier designed to deliver powerful and clear audio output for your car audio system. Please read this manual thoroughly before attempting installation or operation to ensure proper use and to maximize the performance and longevity of your ampmés viu.
Figura 1: Davant view of the DM2500A Monoblock Ampvidador, espectacleasing its sleek black chassis and the DD Audio logo.
Informació de seguretat
Observeu sempre les següents precaucions de seguretat per evitar lesions o danys a la amplifier and other components:
- Disconnect the vehicle's battery negative terminal before beginning any installation.
- Assegureu-vos que tot el cablejat estigui correctament encaminat i fixat per evitar que es piqui o es faci malbé.
- Feu servir un cablejat del calibre adequat per a les connexions d'alimentació, terra i altaveus, tal com s'especifica en aquest manual.
- No muntis el amplificador en zones exposades a la llum solar directa, a la calor excessiva, a la humitat o a la pols.
- No feu servir mai el amplifier with damaged wiring or if it has been exposed to water.
- Demaneu ajuda professional si no teniu cap dubte sobre alguna part del procés d'instal·lació.
Configuració i instal·lació
Una instal·lació correcta és crucial per a un rendiment i una seguretat òptims. Seguiu aquests passos amb atenció:
1. Muntatge del Ampmés viu
Choose a mounting location that provides adequate ventilation and is protected from moisture. Secure the amplifier firmly using appropriate hardware.
Figura 2: En angle view of the DM2500A, showing its heat sink fins for efficient cooling.
2. Connexions d'alimentació i de terra
Connecteu els cables d'alimentació, de terra i d'encesa remota a amplifier's terminals. Ensure all connections are tight and secure.
- Potència (+12 V): Connect a heavy-gauge power cable (recommended 4 AWG or larger) directly from the positive terminal of the vehicle's battery to the +12V terminal on the amplifier. Install an in-line fuse holder within 18 inches of the battery.
- Terra (GND): Connect a heavy-gauge ground cable (same as power cable) from the GND terminal on the ampel adaptador a una superfície metàl·lica neta i sense pintar del xassís del vehicle. Assegureu-vos d'una bona connexió elèctrica.
- Remot (REM): Connecteu un cable d'encesa remota des de la sortida remota de la unitat principal al terminal REM del amplificador. Aquest cable indica el amplificador per encendre i apagar amb la unitat principal.
Figura 3: Close-up of the power (GND, REM, +12V) and speaker output terminals on the DM2500A ampmés viu.
3. Audio Input Connections (RCA)
Connect your head unit's RCA pre-outs to the amplifier's RCA input terminals. The DM2500A is a monoblock amplifier, so it typically uses a single RCA input or sums stereo inputs.
- Connect RCA cables from your head unit's subwoofer or full-range pre-outs to the "INPUT" L and R RCA jacks on the ampmés viu.
- If using a single mono signal, connect to either L or R input. The amplifier will sum the input internally.
4. Speaker Output Connections
Connecteu el(s) subwoofer(s) al amplifier's speaker output terminals. Pay close attention to polarity and impedance.
- Connect the positive (+) terminal of your subwoofer(s) to the positive (+) speaker terminal on the ampmés viu.
- Connect the negative (-) terminal of your subwoofer(s) to the negative (-) speaker terminal on the ampmés viu.
- Ensure the total impedance of your connected speakers is within the amplifier's supported range (1 Ohm minimum for continuous wattagi).
Figura 4: Close-up of the input and control panel on the DM2500A, showing RCA inputs, gain, subsonic, LPF, and remote port.
Funcionant el Ampmés viu
Once installed, you can configure the ampConfiguració del lifer per a un rendiment d'àudio òptim.
1. Ajust de guany
The "GAIN" control matches the ampsensibilitat d'entrada del lifter al volum de sortidatage of your head unit. Start with the gain at minimum and slowly increase it until you hear distortion, then back off slightly. This is not a volume control.
2. Subsonic Filter (SUBSONIC)
El filtre subsònic elimina les freqüències extremadament baixes que són inaudibles però que poden malgastar amplifier power and damage subwoofers. Adjust this filter to protect your subwoofers, typically set just below the port tuning frequency of your enclosure (10Hz - 50Hz).
3. Low-Pass Filter (LPF)
The low-pass filter allows only frequencies below the set point to pass through to the subwoofer. Adjust this to blend the subwoofer's output seamlessly with your main speakers (20Hz - 200Hz).
4. Pass Thru Output
The "PASS THRU OUT" RCA jacks allow you to send the audio signal from the DM2500A's input to another amplifier, simplifying multi-ampinstal·lacions de purificació.
5. Remote Level Control
The included remote level control allows you to adjust the subwoofer output level conveniently from the driver's seat. Connect it to the "REMOTE" port on the ampmés viu.
Figura 5: The wired remote level control unit, featuring power, lo-volt, and clipping indicators, along with a rotary knob for output adjustment.
Manteniment
To ensure the longevity and optimal performance of your DM2500A amplificador, seguiu aquestes senzilles pautes de manteniment:
- Neteja: Netegeu periòdicament el ampl'exterior del purificador amb un drap suau i sec. No utilitzeu productes químics agressius ni netejadors abrasius.
- Ventilació: Assegureu-vos que el amplifier's heat sinks are free from dust and debris. Good airflow is essential for cooling.
- Connexions: Occasionally check all power, ground, remote, RCA, and speaker connections to ensure they remain tight and free from corrosion.
- Medi ambient: Eviteu exposar el ampresistent a temperatures extremes, llum solar directa o humitat excessiva.
Resolució de problemes
If you experience issues with your DM2500A amplifier, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| Sense alimentació / AmpEl lificador no s'encén | Fusible fundit, cable d'alimentació/terra/control remot solt, senyal d'encesa del control remot defectuós. | Comproveu el fusible en línia i amplifier fuses. Verify all power, ground, and remote connections are secure and receiving proper voltage. Test remote wire for +12V when head unit is on. |
| Sense sortida de so | Loose RCA cables, incorrect gain setting, speaker wires disconnected, amplificador en mode de protecció. | Ensure RCA cables are securely connected at both ends. Adjust gain. Check speaker wire connections and polarity. If protect light is on, check speaker impedance and for short circuits. |
| So distorsionat | Gain set too high, incorrect filter settings, poor ground connection, damaged speakers. | Reduce gain setting. Adjust LPF and Subsonic filters. Verify ground connection is solid. Inspect speakers for damage. |
| Ampsobreescalfament del lificador | Insufficient ventilation, impedance too low, prolonged high-volume operation. | Assegureu-vos que hi hagi un flux d'aire adequat al voltant de amplificador. Comproveu la impedància de l'altaveu. Reduïu el volum o permeteu amplificador per refredar. |
Especificacions
Detailed technical specifications for the DD Audio DM2500A Monoblock Ampmés viu:
| Característica | Especificació |
|---|---|
| Model | DM2500A |
| AmpTipus més viu | Monobloc classe D |
| Wat continutage @ 4 ohms | RMS de 810 Watts |
| Wat continutage @ 2 ohms | RMS de 1400 Watts |
| Wat continutage @ 1 ohms | RMS de 2500 Watts |
| Wat dinàmictage | 3000 watts |
| Vol. Operatiutage | 9 - 16 volts de corrent continu |
| Prova Voltage | 14.4 Volts |
| Consum màxim de corrent | 250 Amps |
| Entrada RCA Voltage Sensibilitat | 0.1 V - 4 V |
| S/N d'entrada RCA | > 85 dB |
| DampFactor | > 150 |
| Resposta de freqüència | 15 Hz - 200 Hz |
| Filtre subsònic | 10 Hz - 50 Hz |
| Filtre de pas baix | 20 Hz - 200 Hz |
| Pass Thru Output | Sí |
| Control remot | Inclòs |
| Calibre de cable de l'altaveu | 10 AWG (recommended) |
| Dimensions (L x A x A) | 19.68 x 7 x 2 polzades |
| Pes | 16 lliures |
Garantia i Suport
DD Audio products are designed for reliability and performance. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official DD Audio weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.
For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact DD Audio customer support or your authorized dealer. Contact information can typically be found on the manufacturer's weblloc.
Fabricant: Àudio DD
Primer disponible: 22 de novembre de 2022
