Sarrera
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.
Segurtasun Informazioa
- Elikatze-iturria: Ensure the unit is connected to a 12V DC negative ground power supply.
- Kableatua: All wiring should be performed with the vehicle's ignition turned off to prevent electrical shorts.
- Muntaketa: Mount the unit securely to prevent movement during vehicle operation. Avoid mounting in locations exposed to direct sunlight, excessive heat, or moisture.
- Aireztapena: Ziurtatu unitatearen inguruan aireztapen egokia dagoela gehiegi berotzea saihesteko.
- Instalazio profesionala: If you are unsure about any installation steps, consult a qualified car audio professional.
Produktua amaituview
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.
Ezaugarri nagusiak:
- 5-Band Equalization: Provides ±18 dB adjustment at 50 Hz, 200 Hz, 1 kHz, 5 kHz, and 20 kHz for precise frequency tuning.
- Digital Bass Reconstruction: Restores low frequencies often lost during audio compression, enhancing bass impact.
- Iragazki subssonikoa: Selectable 35–80Hz filter protects subwoofers from unwanted ultra-low frequencies.
- Sarrera polifazetikoak: Includes AUX, low-level RCA, and high-level speaker inputs for compatibility with various head units.
- High Output Preampbiziagoa: 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).
- Diseinu trinkoa: 1/2 DIN size (7" W x 5.1" D x 1.2" H) for easy installation in tight spaces.

1. irudia: Angeludun view of the Soundstream MPQ-6BX equalizer.
Konfigurazioa eta Instalazioa
Proper installation is crucial for optimal performance. Refer to the wiring diagram and follow these steps carefully.
Paketearen edukia:

Figure 2: Included components: MPQ-6BX equalizer, remote knob, and installation accessories.
- Soundstream MPQ-6BX Equalizer
- Remote Bass Knob
- Installation Accessories (wiring harness, mounting hardware)
- Erabiltzailearen eskuliburua
Muntaketa:
- 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.
- Secure the unit using the provided mounting hardware.
Kableatu konexioak:

Figure 3: Rear panel connections for power, inputs, and outputs.
- Potentzia-konexioa:
- Konektatu +12V wire to a constant 12V power source (e.g., battery positive terminal) with an inline fuse.
- Konektatu GND wire to a clean chassis ground point.
- Konektatu ERREM (Remote) wire to the remote turn-on output of your head unit.
- Sarrerako konexioak:
- AUX sarrera: For external audio devices via RCA.
- Behe-mailako RCA sarrera: 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.
- Irteerako konexioak:
- Konektatu AURRERA, ATZEKO, eta AZPI RCA outputs to the corresponding inputs on your ampigogailuak.
Funtzionamendu-argibideak
Familiarize yourself with the controls to optimize your audio experience.

Figure 4: Front panel controls of the MPQ-6BX equalizer.
Aurreko paneleko kontrolak:
- Master bolumena: Adjusts the overall output level of the equalizer.
- Sarrera hautatzea: 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:

5. irudia: Goikoa view showing input level, ground isolation, and output voltage etengailuak.
- 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.
- Irteera boltage (5V/7.5V/10V): Sets the maximum output voltagaurreko eamplifier. Match this to the input sensitivity of your ampigogailuak.
Mantentzea
The Soundstream MPQ-6BX is designed for reliable operation with minimal maintenance.
- Garbiketa: Erabili zapi leun eta lehor bat unitatea garbitzeko. Ez erabili garbitzaile edo disolbatzaile urratzailerik.
- Konexioak: Aldian-aldian egiaztatu kableatu-konexio guztiak ondo finkatuta daudela eta korrosiorik gabe daudela ziurtatzeko.
- Ingurumena: Ensure the unit remains in a well-ventilated area, free from excessive heat, dust, and moisture.
Arazoak konpontzea
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Botererik ez | Fusible erreta, kableatu okerra, konexio elektriko soltea. | Check inline fuse, verify +12V, GND, and REM connections. Ensure connections are secure. |
| Ez dago audio irteerarik | Incorrect input selection, loose RCA connections, ampLikidatzailea ez dago piztuta. | Verify Input Select switch position. Check all RCA connections. Ensure amplifiers are powered on. |
| Soinu distortsionatua | 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). |
| Baxu ahula | 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. |
Zehaztapenak
| Modelo zenbakia | MPQ-6BX |
| Ekualizazio Bandak | 5 (50Hz, 200Hz, 1kHz, 5kHz, 20kHz) |
| EQ Adjustment Range | ±18 dB |
| Iragazki subsonikoa | Selectable 35Hz - 80Hz |
| Irteera max. Boltage | 7V RMS / 12V Peak |
| Distortsio harmoniko osoa (THD) | %0.01 |
| Seinale-Zarata Ratioa (SNR) | 110 dB |
| Sarrerako inpedantzia | 20 kΩ (AUX/Low-Level), 60 Ω (High-Level) |
| Irteerako inpedantzia | 150 Ω |
| Maiztasun Erantzuna | 20Hz - 20kHz |
| Elikatze Hornidura | 12V DC Negative Ground, PWM Switched |
| Egungo Kontsumoa | 250mA |
| Neurriak (W x D x H) | 7" x 5.1" x 1.2" (17.78 cm x 12.95 cm x 3.05 cm) |
| Pisua | 1.7 lb (0.77 kg) |
Bermea eta Laguntza
Bermeari buruzko informazioa eta laguntza teknikoa lortzeko, kontsultatu zure produktuarekin batera datorren berme-txartela edo bisitatu Soundstream-en webgune ofiziala. webgunea. Gorde erosketa-agiria erosketaren frogagiri gisa berme-erreklamazioetarako.
Soundstream Ofiziala Webgunea: www.soundstream.com