OSD Black 300W Subwoofer AmpManuale d'Usu più vivu

1. Introduzione

Thank you for choosing the OSD Black 300W Subwoofer Amplifier, Model BK-SAM300. This amplifier is designed to provide powerful and precise low-frequency amplification for passive subwoofers, enhancing your home theater or audio system experience. With its robust Class AB output stage and versatile connectivity options, the BK-SAM300 delivers deep, impactful bass for movies, music, and games.

This manual provides detailed instructions for the proper installation, operation, and maintenance of your subwoofer amplifier. Please read it thoroughly before use and retain it for future reference.

2. Informazioni di sicurezza

AVVERTENZA: Per riduce u risicu di focu o scossa elettrica, ùn espone micca stu apparecchiu à a pioggia o l'umidità.

• Leghjite tutte l'istruzzioni prima di funziunà amppiù vivu.
• Mantene stu manuale per riferimentu futuru.
• Heed all warnings on the amplifier and in this manual.
• Segui tutte e struzzioni.
• Ùn aduprate micca stu apparatu vicinu à l'acqua.
• Pulite solu cù un pannu seccu.
• Ùn bluccate micca alcuna apertura di ventilazione. Installate secondu l'istruzzioni di u fabricatore.
• Ùn installate micca vicinu à fonti di calore cum'è radiatori, registri di calore, stufe, o altri apparecchi (cumpresu amplifiers) chì producenu calore.
• Ùn scunfighja micca u scopu di sicurità di u plug polarizatu o di terra. Un plug polarizatu hà duie pale cù una più larga di l'altru. Un plug di tipu di terra hà duie lame è una terza punta di terra. A lama larga o a terza punta sò furnite per a vostra sicurità. Se a presa furnita ùn si mette micca in a vostra presa, cunsultate un electricista per a sostituzione di a presa obsoleta.
• Prutegge u cordone di alimentazione da esse camminatu o pinzatu, in particulare in i tappi, i recipienti di cunvenzione, è u puntu induve esce da l'apparechju.
• Aduprate solu accessori / accessori specificati da u fabricatore.
• Scollegate stu apparatu durante e tempeste di fulmini o quandu ùn hè micca utilizatu per longu periodi di tempu.
• Riferite tutte l'assistenza à u persunale di serviziu qualificatu. U serviziu hè necessariu quandu l'apparechju hè statu danatu in ogni modu, cum'è u cordone di l'alimentazione o u plug hè dannatu, u liquidu hè statu versatu o l'uggetti sò caduti in l'apparechju, l'apparechju hè statu espostu à a pioggia o l'umidità, ùn funziona micca nurmale. , o hè stata abbandunata.

3. Cuntenutu di u pacchettu

Per piacè verificate a casella per i seguenti elementi:

• OSD Black 300W Subwoofer Amplifier (BK-SAM300)
• Cordone d'alimentazione
• Manuale d'uso (stu documentu)

4. Produttu Finituview

4.1 Cuntrolli Front Panel

The front panel of the BK-SAM300 features essential controls for power and audio adjustments.

Figura 4.1: Front è Rear View of the BK-SAM300 Amplifier. This image displays both the front panel with its controls and the rear panel with all input/output connections.

• Pulsante di putenza: Commuta u amplifier's power on or off.
• Phase Control (0° - 180°): Adjusts the phase of the subwoofer output relative to the main speakers. This helps to ensure that the subwoofer's sound waves align correctly with those of the main speakers, preventing cancellation or reinforcement issues at the crossover frequency.
• FREQ (Crossover Frequency) Control: Sets the upper frequency limit for the subwoofer. Frequencies above this setting will be filtered out. Adjustable from approximately 40Hz to 120Hz.
• GAIN (Volume) Control: Adjusts the overall output level of the subwoofer amplifier. Use this to balance the subwoofer's volume with the rest of your audio system.

4.2 Cunnessioni è cuntrolli di u pannellu posteriore

The rear panel houses all the input and output connections, along with additional settings for advanced configuration.

Figure 4.2: Rear Panel of the BK-SAM300 Amplifier. This image provides a detailed view of all input and output terminals, including Hi Level, Line, LFE, Bass Boost, 12V Trigger, and Subwoofer Output.

• HI LEVEL IN (Speaker Level Input): Connects directly to the speaker outputs of your receiver or amplifier. Use this if your receiver does not have a dedicated subwoofer output or LFE output.
• HI LEVEL OUT (Speaker Level Output): Passes the full-range audio signal from the HI LEVEL IN to your main speakers.
• LINE IN (RCA Input): Standard RCA stereo inputs for connecting to the pre-out or line-out of your receiver or audio source.
• LINE OUT (RCA Output): Passes the audio signal from the LINE IN to another amplifier o dispusitivu audio.
• LFE INPUT (RCA Input): Dedicated input for connecting to the LFE (Low-Frequency Effects) output of an AV receiver. This bypasses the amplifier's internal crossover, relying on the receiver's bass management.
• BASS BOOST (Level & Freq):
  • Level (0dB to 12dB): Adjusts the intensity of the bass boost.
  • Freq (25Hz to 50Hz): Selects the center frequency at which the bass boost is applied.
  

  Figure 4.3: Detail of Bass Boost Controls. This image highlights the Level and Freq knobs for fine-tuning the bass boost.

• REMOTE TURN ON (Manual, Auto, 12V Trigger): Sceglie u ampModu d'accensione di u lifier.
  • Manuale: Amplifier is turned on/off manually via the front panel power button.
  • Auto: Amplifier automatically turns on when an audio signal is detected and enters standby mode when no signal is present for a period.
  • 12V Trigger In / Out: Permette u amplifier to be turned on/off by a 12V DC trigger signal from a compatible receiver or control system.
• SUBWOOFER OUTPUT (Binding Posts): Connects to your passive subwoofer using speaker wire. Ensure correct polarity (+ to + and - to -). The ampL'impedenza hè stabile finu à 4 ohms.
  

  Figure 4.4: Detail of Subwoofer Output and 12V Trigger. This image shows the binding posts for subwoofer connection and the 12V trigger terminals.
• AC VOLTAGE SELECTOR (120V/240V): Selezziuna l'input appropritatu voltage per a vostra regione. Ensure this is set correctly before plugging in the amppiù vivu.
• Ingressu di alimentazione AC: Cunnette u cordone di alimentazione furnitu.

5. Setup

5.1 Placement

Pone u amplifier in a location that allows for adequate ventilation. Avoid enclosed spaces or stacking other components directly on top of the amplifier. Keep it away from direct sunlight, heat sources, and moisture. Ensure it is placed on a stable, level surface.

5.2 Cunnettendu u Amppiù vivu

Choose one of the following connection methods based on your audio system's capabilities:

Method A: Using LFE Input (Recommended for AV Receivers with Subwoofer Output)

1. Connect an RCA cable from the LFE or Subwoofer Pre-Out jack on your AV receiver to the LFE INPUT jack on the BK-SAM300.
2. Cunnette u vostru subwoofer passivu à u OUTPUT SUBWOOFER binding posts on the BK-SAM300 using appropriate gauge speaker wire. Ensure correct polarity (+ to + and - to -).
3. Proceed to Section 5.3 for power connection.

Method B: Using Line Level Inputs (for Stereo Receivers or Pre-Outs)

1. Connect RCA cables from the Pre-Out or Line-Out jacks of your receiver/pre-amppiù vivu à u LINE IN (Left and Right) jacks on the BK-SAM300.
2. Cunnette u vostru subwoofer passivu à u OUTPUT SUBWOOFER binding posts on the BK-SAM300 using appropriate gauge speaker wire. Ensure correct polarity (+ to + and - to -).
3. Proceed to Section 5.3 for power connection.

Method C: Using High Level Inputs (for Receivers without Dedicated Subwoofer/Pre-Outs)

1. Connect speaker wires from the main speaker outputs of your receiver/amppiù vivu à u HI LEVEL IN (Left and Right) binding posts on the BK-SAM300. Ensure correct polarity.
2. (Optional) If you wish to pass the signal through to your main speakers, connect speaker wires from the HI LEVEL OUT binding posts on the BK-SAM300 to your main speakers.
3. Cunnette u vostru subwoofer passivu à u OUTPUT SUBWOOFER binding posts on the BK-SAM300 using appropriate gauge speaker wire. Ensure correct polarity (+ to + and - to -).
4. Proceed to Section 5.3 for power connection.

5.3 Cunnessione di putenza

1. Before connecting the power cord, ensure the AC VOLTAGE SELETTORE l'interruttore nantu à u pannellu posteriore hè impostu à u vulume currettutage for your region (120V or 240V). Incorrect setting can damage the unit.
2. Cunnette u cavu di alimentazione furnitu à Alimentazione AC on the rear panel of the amppiù vivu.
3. Inserite l'altra estremità di u cavu di alimentazione in una presa di corrente adatta.

6. Operating Instructions

6.1 Accensione / spegnimentu

The BK-SAM300 offers three power-on modes:

• Modu manuale: Pone u REMOTE TURN ON switch to "Manual". Press the front panel Pulsante di putenza turnà u amppiù vivu nantu o fora.
• Modu Auto: Pone u REMOTE TURN ON switch to "Auto". The amplifier will automatically turn on when an audio signal is detected at the inputs and will enter standby mode after approximately 15-20 minutes of no audio signal.
• 12V Trigger Mode: Connect a 12V DC trigger cable from your source component (e.g., AV receiver) to the 12V TRIGGER IN terminal. Set the REMOTE TURN ON switch to "12V Trigger". The amplifier will power on/off with the source component.

6.2 Ajustà i cuntrolli

Optimal sound quality depends on proper adjustment of the amplifier's controls to match your subwoofer and listening environment.

• GAIN (Volume): Start with the GAIN control at its minimum setting. Play some audio with significant bass content. Slowly increase the GAIN until the subwoofer's output blends seamlessly with your main speakers. Avoid setting the gain too high, as this can lead to distortion.
• FREQ (Frequenza di Crossover):
  • Sè aduprà u LFE INPUT, this control is bypassed. Set your AV receiver's subwoofer crossover frequency.
  • Sè aduprà LINE IN or HI LEVEL IN, adjust the FREQ control to blend the subwoofer's output with your main speakers. A good starting point is typically 80Hz-100Hz, but this may vary depending on the size and frequency response of your main speakers. Smaller main speakers usually require a higher crossover frequency.
• PHASE (0° - 180°): The phase control helps to ensure that the subwoofer's sound waves are in sync with your main speakers.
  • Play music with a consistent bass line.
  • While listening from your primary listening position, slowly adjust the PHASE control from 0° to 180°.
  • Stop at the position where the bass sounds the loudest and most impactful. If the bass sounds weak or hollow, try adjusting the phase.
• BASS BOOST: Use the BASS BOOST controls (Level and Freq) to fine-tune the low-frequency response.
  • Frecu: Select the specific low frequency (25Hz to 50Hz) you wish to boost.
  • Livellu: Adjust the amount of boost (0dB to 12dB) at the selected frequency. Use sparingly to avoid muddy or boomy bass.

7. Mantenimentu

• Pulizia: Disconnect the amplifier from power before cleaning. Use a soft, dry cloth to wipe down the exterior. Do not use liquid cleaners or aerosol sprays.
• Ventilazione: Ensure that the ventilation openings are not blocked by dust or debris. Periodically check and clean if necessary to maintain proper airflow.
• Conservazione: Se guardà u amplifier for an extended period, disconnect it from power and store it in a cool, dry place, away from direct sunlight and extreme temperatures.

8. Risoluzione di prublemi

9. Specificazioni

10. Garanzia è Support

OSD Audio products are designed and manufactured to the highest quality standards. For specific warranty information regarding your BK-SAM300 Subwoofer Amplifier, please refer to the warranty card included with your product or visit the official OSD Audio websitu. I termini di garanzia coprenu tipicamente i difetti di materiali è di fabricazione in cundizioni d'usu nurmale.

For technical support, troubleshooting assistance, or service inquiries, please contact OSD Audio customer support through their official website or the contact information provided with your purchase. Please have your model number (BK-SAM300) and purchase date ready when contacting support.

Risorse in linea: For the latest information, FAQs, and additional support, please visit the Audio OSD websitu.