Indledning
This manual provides detailed instructions for the installation, operation, and maintenance of the Soundstream MPQ-6BX 1/2 DIN 5-Band Car Audio Equalizer with Digital Bass Reconstruction. Please read this manual thoroughly before using the product to ensure proper function and to prevent damage.
Sikkerhedsoplysninger
- Strømforsyning: Ensure the unit is connected to a 12V DC negative ground power supply.
- Ledningsføring: All wiring should be performed with the vehicle's ignition turned off to prevent electrical shorts.
- Montering: Mount the unit securely to prevent movement during vehicle operation. Avoid mounting in locations exposed to direct sunlight, excessive heat, or moisture.
- Ventilation: Sørg for tilstrækkelig ventilation omkring enheden for at forhindre overophedning.
- Professionel installation: Hvis du er usikker på installationstrinnene, skal du kontakte en kvalificeret bilstereo-professionel.
Produkt overview
The Soundstream MPQ-6BX is a compact 1/2 DIN 5-band equalizer designed to enhance your car audio system. It features digital bass reconstruction, a selectable subsonic filter, and flexible input/output options for comprehensive sound control.
Nøglefunktioner:
- 5-bånds equalisering: Provides ±18 dB adjustment at 50 Hz, 200 Hz, 1 kHz, 5 kHz, and 20 kHz for precise frequency tuning.
- Digital basrekonstruktion: Restores low frequencies often lost during audio compression, enhancing bass impact.
- Subsonisk filter: Selectable 35–80Hz filter protects subwoofers from unwanted ultra-low frequencies.
- Alsidige indgange: Includes AUX, low-level RCA, and high-level speaker inputs for compatibility with various head units.
- High Output Preamplivligere: Delivers 7V RMS / 12V peak preamplifier outputs with ultra-low 0.01% Total Harmonic Distortion (THD) and a 110 dB Signal-to-Noise Ratio (SNR).
- Kompakt design: 1/2 DIN size (7" W x 5.1" D x 1.2" H) for easy installation in tight spaces.

Figur 1: Vinklet view of the Soundstream MPQ-6BX equalizer.
Opsætning og installation
Proper installation is crucial for optimal performance. Refer to the wiring diagram and follow these steps carefully.
Pakkeindhold:

Figure 2: Included components: MPQ-6BX equalizer, remote knob, and installation accessories.
- Soundstream MPQ-6BX Equalizer
- Fjernbetjent basknap
- Installation Accessories (wiring harness, mounting hardware)
- Brugermanual
Montering:
- Choose a suitable location in your vehicle, such as a 1/2 DIN dash opening or under the dashboard, ensuring it is away from heat sources and moisture.
- Ensure there is enough space for wiring connections and ventilation.
- Fastgør enheden med det medfølgende monteringsudstyr.
Ledningsforbindelser:

Figure 3: Rear panel connections for power, inputs, and outputs.
- Strømtilslutning:
- Tilslut +12V wire to a constant 12V power source (e.g., battery positive terminal) with an inline fuse.
- Tilslut GND wire to a clean chassis ground point.
- Tilslut REM (Remote) wire to the remote turn-on output of your head unit.
- Indgangsforbindelser:
- AUX-indgang: For external audio devices via RCA.
- RCA-indgang på lavt niveau: Connect to the RCA pre-out of your head unit.
- High-Level Speaker Input: Use for head units without RCA outputs. Connect directly to speaker wires.
- Udgangsforbindelser:
- Tilslut FRONT, BAG, og SUB RCA outputs to the corresponding inputs on your amplivførere.
Betjeningsvejledning
Familiarize yourself with the controls to optimize your audio experience.

Figure 4: Front panel controls of the MPQ-6BX equalizer.
Kontrol på frontpanelet:
- Hovedvolumen: Justerer equalizerens samlede udgangsniveau.
- Indgangsvalg: Switches between CD (Low-Level RCA/High-Level) and AUX inputs.
- Fader (F/R): Balances the audio output between front and rear channels.
- Level (Digital Bass Processor): Adjusts the intensity of the digital bass reconstruction.
- Subsonic (35Hz/80Hz): Selects the cutoff frequency for the subsonic filter.
- EQ Bands (50Hz, 200Hz, 1kHz, 5kHz, 20kHz): Adjusts the gain (±18dB) for each frequency band.
Rear Panel Settings:

Figur 5: Øverst view showing input level, ground isolation, and output voltage skifter.
- Input Level (90Hz/150Hz/200Hz): Adjusts the input sensitivity for the digital bass processor. Experiment to find the best setting for your source.
- Ground Isolation (200Ω/GND/ISO): Helps eliminate ground loop noise. Try different settings if you experience hum or hiss.
- Udgang Voltage (5V/7.5V/10V): Sets the maximum output voltage af den præamplifier. Match this to the input sensitivity of your amplivførere.
Opretholdelse
The Soundstream MPQ-6BX is designed for reliable operation with minimal maintenance.
- Rensning: Brug en blød, tør klud til at rengøre enheden. Brug ikke slibende rengøringsmidler eller opløsningsmidler.
- Forbindelser: Kontrollér regelmæssigt alle ledningsforbindelser for at sikre, at de er fastgjorte og fri for korrosion.
- Miljø: Ensure the unit remains in a well-ventilated area, free from excessive heat, dust, and moisture.
Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen strøm | Blown fuse, incorrect wiring, loose power connection. | Check inline fuse, verify +12V, GND, and REM connections. Ensure connections are secure. |
| Ingen lydudgang | Forkert valg af indgang, løse RCA-forbindelser, ampForstærkeren er ikke strømforsynet. | Verify Input Select switch position. Check all RCA connections. Ensure ampLifiers er tændt. |
| Forvrænget lyd | Input level too high, output voltage mismatch, EQ settings too extreme. | Reduce head unit volume. Adjust Input Level and Output Voltage switches. Reset EQ bands to flat and adjust gradually. |
| Engine noise/hum | Ground loop, poor ground connection. | Ensure a clean, secure ground connection. Experiment with the Ground Isolation switch (200Ω/GND/ISO). |
| Svag bas | Digital Bass Processor level too low, Subsonic filter set too high, EQ bass band reduced. | Increase Digital Bass Processor Level. Adjust Subsonic filter to a lower frequency or off. Increase 50Hz EQ band. |
Specifikationer
| Modelnummer | MPQ-6BX |
| Equalizer bånd | 5 (50Hz, 200Hz, 1kHz, 5kHz, 20kHz) |
| EQ Adjustment Range | ±18 dB |
| Subsonisk filter | Selectable 35Hz - 80Hz |
| Maks. Output voltage | 7V RMS / 12V Peak |
| Total harmonisk forvrængning (THD) | 0.01 % |
| Signal-støj-forhold (SNR) | 110 dB |
| Indgangsimpedans | 20 kΩ (AUX/Low-Level), 60 Ω (High-Level) |
| Udgangsimpedans | 150 Ω |
| Frekvensrespons | 20Hz - 20kHz |
| Strømforsyning | 12V DC Negative Ground, PWM Switched |
| Nuværende forbrug | 250mA |
| Dimensioner (B x D x H) | 7" x 5.1" x 1.2" (17.78 cm x 12.95 cm x 3.05 cm) |
| Vægt | 1.7 lbs (0.77 kg) |
Garanti og support
For garantioplysninger og teknisk support henvises til garantikortet, der følger med dit produkt, eller besøg den officielle Soundstream-side. webwebsted. Behold din købskvittering som købsbevis i tilfælde af garantikrav.
Soundstream Officiel Webwebsted: www.soundstream.com