1. Kupu Whakataki
Mauruuru koe mo te hokoasing the OSD Audio SMP500DSP Subwoofer Ampkaiwhakaora. Kei roto i tēnei pukapuka ngā tohutohu taipitopito mō te tāutanga tika, te whakahaere, me te tiaki i tō ampKaiwhakaora. Pānuihia tēnei pukapuka ā-ringa i mua i te whakamahinga o te hua hei whakarite i te mahi tino pai me te haumaru.
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. Nga waahanga matua
- Putanga Hiko: Up to 800 watts peak / 400 watts RMS at 4 ohms, utilizing highly efficient Class D technology for cool operation.
- DSP (Digital Signal Processing): 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.
- Āhuatanga Mana: Front-mounted power, back panel adjustable gain, and a volume control limiter to protect woofers.
- Input/Output Flexibility: Low and high-level pass-through inputs/outputs for versatile connectivity.
- Tango Aunoa: Automatic power on/off when an audio signal is detected.
- Hoahoa: Rack-mountable chassis for easy integration into existing setups.
- Voltage: Takirua 100/220 voltage hototahitanga.
- Tiwhikete: CE & ETL rated.
- Nga taputapu kei roto: Mana mamao mo te mahi watea.
3. Hua Neke Atuview
Familiarize yourself with the front and rear panels of the SMP500DSP ampkaikawe

Whakaahua 3.1: Paepae Mua me muri Ki rungaview 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.

Whakaahua 3.2: Front Panel of the SMP500DSP Ampwhakarara. Tenei view highlights the power button, service port, digital display, and main volume/control knob.

Whakaahua 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 kaikohi.
Mana Paewhiri Mua:
- Pātene Hiko: Ka huri te amplifier runga ranei atu.
- Tauranga Ratonga: Used for firmware updates and diagnostics.
- Whakaaturanga Mamati: Shows current settings such as volume level and DSP parameters.
- Puku Mana: Adjusts volume and navigates DSP menu options.

Whakaahua 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.
Hononga Paewhiri Whakamuri:
- Raina Mai (RCA): Stereo RCA inputs for connecting to a pre-ampkaiwhakarewa, kaiwhiwhi ranei.
- Raina Atu (RCA): Stereo RCA outputs for daisy-chaining to another amphe taputapu ororongo ranei.
- Speaker Level In/Out: High-level inputs and outputs for connecting directly to speaker outputs from a receiver or ampkaikawe
- 12V Keu ki roto/waho: 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 Tīpakonga: Switch to select between 110V and 220V operation. Ensure this is set correctly for your region before connecting power.
- Whakauru Hiko AC: For connecting the included power cord.

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

Whakaahua 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. Tatūnga me te Tāuta
4.1 Whakatupato Haumaru
- Me whakarite i nga wa katoa amplifier is disconnected from the power outlet before making any connections.
- Manatokohia te Rōrahi ACtagKua whakatakotoria te pātene tīpako i te papa o muri ki te rōrahi tikatage for your region (110V or 220V) before plugging in the amplifier. Incorrect voltage selection can cause severe damage to the unit.
- Kaua e hurahia te amphe whakaahuru ki te makuku, ki te wera nui ranei.
- Me whakarite kia pai te hau huri noa i te amphe whakamahana hei aukati i te werawera.
4.2 Whakanoho
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
- Me whakarite te ampKa wetohia te rama ka wetewetehia.
- 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 Te Hononga ki tō Pūnaha Ororongo
There are two primary methods for connecting the SMP500DSP to your audio system:
Method A: Using RCA Line Level Inputs (Recommended)
- Mena ko tō kaiwhiwhi, ko tō mua rānei-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 ampkaikawe
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 ampwhakarara. Whakaritea te polarity tika.
- 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 Hononga Hiko
- 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 ampkaikawe
- Monohia tetahi pito o te taura hiko ki tetahi putanga pakitara pai.
5. Mahi
5.1 Kei te Hiko / Weto
- 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.
- Tango Aunoa: Ko te 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.
- 12V Keu: 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 Te Whakaritea i te Rōrahi
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 Mana Whakahaere me ngā Tautuhinga DSP
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.
- Mana Wāhanga: 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. Tiaki
- Te horoi: Whakamahia he kakahu ngohengohe, maroke hei horoi i waho o te ampwhakarara. Kaua e whakamahia nga kai horoi wai, aerosol ranei.
- Whakahau: Me whakarite kia tuwhera te hau i runga i te amplifier are not blocked. Dust accumulation can be removed with a soft brush or vacuum cleaner.
- Hononga: Ia wa, tirohia nga hononga taura katoa kia noho haumaru, kia kore e pirau.
7. Te Raru
| Raruraru | Take pea | Rongoā |
|---|---|---|
| Karekau he kaha | 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. |
| Kaore he tangi mai i te 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). |
| Oro kerekere | Volume too high; Input signal too strong; Subwoofer impedance mismatch. | Whakaiti 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. Whakatakotoranga
| Āhuahira | Taipitopito |
|---|---|
| Tau tauira | SMP500DSP |
| Te Mana Putanga | 800W Peak / 400W RMS @ 4 Ohms |
| Ampmomo Momo | Mono-Channel Class D |
| Te maha o nga hongere | 1 |
| DSP | Onboard Digital Signal Processing |
| Voltage | 100V/220V Ka taea te whakawhiti |
| Rahi Tūemi (L x W x H) | 15 x 5 x 6 inihi |
| Taumaha Tūemi | 8 pauna |
| Momo Whakaeke | Surface Mount / Rack Mountable |
| Tātari-Tapa teitei | Taurangi (30Hz - 150Hz) |
| Auto-On Sensitivity | 5 mV |
| Wā-Aunoa | 20 minutes (no signal) |
| Tapeke Harmonic Distortion (THD) | <1% |
| Tiwhikete | CE, ETL Rated |
| UPC | 819603013177 |
9. Pūtāhui me te Tautoko
9.1 Nga Korero Whakaputanga
OSD Audio products are designed and manufactured to the highest quality standards. For specific warranty details regarding your SMP500DSP ampKaiwhakaora, tirohia te kāri pūtāhui kei roto i tō hua, tirohia rānei te paetukutuku OSD Audio mana webpae.
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 Tautoko Kiritaki
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:
- Webpae: www.osdaudio.com
- Mōhiohio Whakapā: Tirohia te waahanga "Whakapaa Mai" i runga i te mana webpae mo nga nama waea me te tautoko imeera.
When contacting support, please have your product model number (SMP500DSP) and purchase information ready.





