1. Introduzione
Grazie per l'acquistuasing the OSD Audio SMP500DSP Subwoofer Amplificatore. Stu manuale furnisce struzzioni dettagliate per a curretta installazione, funziunamentu è manutenzione di u vostru amplificatore. Leghjite attentamente stu manuale prima di utilizà u pruduttu per assicurà prestazioni è sicurezza ottimali.
The OSD Audio SMP500DSP is a high-performance mono-channel Class D subwoofer amplifier designed to deliver powerful and clear low-frequency sound. It is ideal for enhancing the bass response in dedicated home theater systems and media rooms.
2. Funzioni chjave
- Potenza di uscita: Up to 800 watts peak / 400 watts RMS at 4 ohms, utilizing highly efficient Class D technology for cool operation.
- DSP (Elaborazione di u Segnale Digitale): Onboard DSP for precise audio control and optimization.
- Variable High-Cut Filter: Adjustable filter to route higher frequencies to main speakers, improving low-frequency effects.
- Funzioni di cuntrollu: Front-mounted power, back panel adjustable gain, and a volume control limiter to protect woofers.
- Flessibilità d'entrata/uscita: Low and high-level pass-through inputs/outputs for versatile connectivity.
- Sensazione automatica: Automatic power on/off when an audio signal is detected.
- Disegnu: Rack-mountable chassis for easy integration into existing setups.
- Voltage: Dual 100/220 voltage cumpatibilità.
- Certificazioni: CE & ETL rated.
- Accessori inclusi: Control remoto per un funziunamentu còmode.
3. Produttu Finituview
Familiarize yourself with the front and rear panels of the SMP500DSP amppiù vivu.

Figura 3.1: Pannello frontale è posteriore sopraview of the SMP500DSP Amplifier. This image displays both the front panel with its display and control knob, and the rear panel showing all input/output connections and power switch.

Figura 3.2: Front Panel of the SMP500DSP Amplificatore. Questu view highlights the power button, service port, digital display, and main volume/control knob.

Figura 3.3: Rear Panel of the SMP500DSP Amplifier. This image shows the various input and output terminals, including RCA line inputs/outputs, speaker level inputs/outputs, 12V trigger, and the AC voltage selettore.
Cuntrolli di u pannellu frontale:
- Pulsante di putenza: Gira u amppiù vivu nantu o fora.
- Portu di serviziu: Used for firmware updates and diagnostics.
- Display Digitale: Shows current settings such as volume level and DSP parameters.
- Manopola di Cuntrollu: Adjusts volume and navigates DSP menu options.

Figura 3.4: Detail of the Front Panel Display and Control Knob. This close-up shows the digital readout indicating volume and the tactile control knob for adjustments.
Cunnessioni di u pannellu posteriore:
- Ingressu di linea (RCA): Stereo RCA inputs for connecting to a pre-amplifier o ricevitore.
- Line Out (RCA): Stereo RCA outputs for daisy-chaining to another amplifier o dispusitivu audio.
- Speaker Level In/Out: High-level inputs and outputs for connecting directly to speaker outputs from a receiver or amppiù vivu.
- 12V Trigger In / Out: For integration with home automation systems, allowing the amplifier to turn on/off with other equipment.
- Music On 12V Switch: Selects between music sensing or 12V trigger for auto-on functionality.
- Subwoofer Speaker Output: Binding posts for connecting your passive subwoofer. Supports Class 2 wiring, 4Ω.
- AC Voltage Selettore: Switch to select between 110V and 220V operation. Ensure this is set correctly for your region before connecting power.
- Ingressu di alimentazione AC: For connecting the included power cord.

Figura 3.5: Detail of Subwoofer Speaker Output Terminals. This image focuses on the binding posts used for connecting the subwoofer speaker cables.

Figura 3.6: Detail of RCA and Speaker Level Inputs/Outputs. This close-up shows the various audio input and output options available on the rear panel.
4. Setup è Installazione
4.1 Precauzioni di sicurezza
- Assicuratevi sempre di amplifier is disconnected from the power outlet before making any connections.
- Verify the AC Voltage Selector switch on the rear panel is set to the correct voltage for your region (110V or 220V) before plugging in the amplifier. Incorrect voltage selection can cause severe damage to the unit.
- Ùn espone micca u amplifier à l'humidité ou à des températures extrêmes.
- Assicurà una ventilazione adatta intornu à u amplifier per impedisce u surriscaldamentu.
4.2 Placement
The SMP500DSP amplifier can be placed on a flat surface or rack-mounted. Choose a location that is dry, well-ventilated, and away from direct sunlight or heat sources. Allow sufficient space around the unit for airflow.
4.3 Connecting Your Subwoofer
- Assicurà u ampL'amplificatore hè spento è scollegatu.
- Connect your passive subwoofer to the "Subwoofer Speaker Output" binding posts on the rear panel. Ensure correct polarity (+ to + and – to –).
- The SMP500DSP supports a single 4-8 ohm subwoofer or two 8-ohm subwoofers.
4.4 Cunnessione à u vostru sistema audio
There are two primary methods for connecting the SMP500DSP to your audio system:
Method A: Using RCA Line Level Inputs (Recommended)
- If your receiver or pre-amplifier has a dedicated subwoofer or LFE (Low-Frequency Effects) output, connect an RCA cable from that output to the "Line In" (L or R, or both for stereo) on the SMP500DSP.
- If your source has stereo RCA outputs, connect both L and R outputs to the "Line In" L and R on the amppiù vivu.
Method B: Using Speaker Level Inputs
- If your receiver does not have a dedicated subwoofer output, you can connect the speaker outputs of your receiver to the "Speaker Level In" terminals on the SMP500DSP.
- Connect the main left and right speaker outputs from your receiver to the corresponding "Speaker Level In" terminals on the ampAssicurà a polarità curretta.
- You can then use the "Speaker Level Out" terminals to connect to your main left and right speakers, allowing the amplifier to pass through the full range signal.
4.5 Cunnessione di putenza
- Double-check the AC Voltage Selector switch on the rear panel is set correctly (110V or 220V).
- Connect the included power cord to the AC Power Inlet on the rear panel of the amppiù vivu.
- Inserite l'altra estremità di u cavu di alimentazione in una presa di corrente adatta.
5. Operazione
5.1 Accensione / spegnimentu
- Press the Power button on the front panel to turn the amplifier on or off. The power indicator LED will illuminate when the unit is on.
- Sensazione automatica: U amplifier features an auto-sensing function. When the "Music On 12V" switch is set to "Music On", the amplifier will automatically turn on when an audio signal is detected and enter standby mode after approximately 20 minutes of no signal.
- Trigger 12V: If using the 12V trigger, set the "Music On 12V" switch to "12V". The amplifier will power on/off in sync with your connected equipment.
5.2 Aghjustà u vulume
Rotate the large control knob on the front panel to adjust the subwoofer's volume level. The digital display will show the current volume setting.
5.3 DSP Control and Settings
The SMP500DSP features onboard DSP for advanced audio customization. Use the control knob to navigate the DSP menu on the digital display. Press the knob to select options and rotate to change values.
Key DSP settings include:
- High-Cut Filter (Crossover): Adjusts the upper frequency limit of the subwoofer. This allows you to blend the subwoofer's output seamlessly with your main speakers. Typical settings range from 30Hz to 150Hz.
- Cuntrollu di Fase: Adjusts the phase of the subwoofer output (0° or 180°). This helps to ensure that the subwoofer's sound waves align correctly with your main speakers, preventing cancellation or reinforcement issues.
- Gain/Level: Fine-tunes the input sensitivity to match the output level of your source device.
- Volume Control Limiter: Sets a maximum volume level to prevent accidental overdriving of the subwoofer.
Refer to the on-screen DSP menu for specific navigation and adjustment instructions.
6. Mantenimentu
- Pulizia: Aduprate un pannu suave è seccu per pulizziari l'esterno ampÙn aduprate micca detergenti liquidi o aerosoli.
- Ventilazione: Assicuratevi chì l'aperture di ventilazione nantu à u amplifier are not blocked. Dust accumulation can be removed with a soft brush or vacuum cleaner.
- Cunnessioni: Verificate periodicamente tutte e cunnessione di i cavi per assicurassi ch'elli sianu sicuri è senza corrosione.
7. Risoluzione di prublemi
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| Nisun putere | Power cord not connected; AC Voltage Selector incorrect; Power outlet faulty. | Ensure power cord is securely plugged in. Verify AC Voltage Selector is set correctly (110V/220V). Try a different power outlet. |
| Nisun sonu da u subwoofer | Incorrect input connection; Subwoofer cable loose/incorrect polarity; Volume too low; DSP settings incorrect. | Check all audio connections (RCA/speaker level). Ensure subwoofer cables are connected with correct polarity. Increase amplifier volume. Check DSP settings (e.g., gain, crossover). |
| Sonu distortu | Volume too high; Input signal too strong; Subwoofer impedance mismatch. | Riduce amplifier volume. Adjust gain settings. Ensure subwoofer impedance matches amplifier specifications (4-8 ohms). |
| Amplifier turns off unexpectedly | Overheating; Auto-sensing timeout; Faulty power supply. | Ensure adequate ventilation. Check "Music On 12V" switch setting. If problem persists, contact customer support. |
8. Specificazioni
| Feature | Detail |
|---|---|
| Numero di mudellu | SMP500DSP |
| Forza di output | 800W Peak / 400W RMS @ 4 Ohms |
| AmpType più vivu | Mono-Channel Class D |
| Numero di canali | 1 |
| DSP | Onboard Digital Signal Processing |
| Voltage | 100V/220V commutabile |
| Dimensioni di l'articulu (L x W x H) | 15 x 5 x 6 inch |
| Pesu di l'articulu | 8 liri |
| Tipu di muntatura | Surface Mount / Rack Mountable |
| Filtru High-Cut | Variable (30Hz - 150Hz) |
| Auto-On Sensitivity | 5 mV |
| Tempu di spegnimentu automaticu | 20 minutes (no signal) |
| Distorsione Armonica Totale (THD) | <1% |
| Certificazioni | CE, ETL Rated |
| UPC | 819603013177 |
9. Garanzia è Support
9.1 Garanzia infurmazione
OSD Audio products are designed and manufactured to the highest quality standards. For specific warranty details regarding your SMP500DSP amplifier, please refer to the warranty card included with your product or visit the official OSD Audio websitu.
Generally, OSD Audio provides a limited warranty against defects in materials and workmanship under normal use. This warranty typically covers parts and labor for a specified period from the original date of purchase.
9.2 Assistenza Clienti
If you encounter any issues or have questions regarding your OSD Audio SMP500DSP amplifier that are not covered in this manual, please contact OSD Audio customer support:
- Websitu: www.osdaudio.com
- Informazioni di cuntattu: Riferitevi à a sezzione "Cuntattateci" nantu à u situ ufficiale websitu per numeri di telefonu è supportu per email.
When contacting support, please have your product model number (SMP500DSP) and purchase information ready.





