1. Uvod
The Stetsom EQX764-7 Band Equalizer is a high-performance car audio graphic equalizer designed to provide precise control over your vehicle's sound system. This unit features a pre-amplifier and a 10V line driver, which helps to minimize noise and deliver a strong, clear audio signal to your amplifiers. With 7 adjustable equalization bands, dedicated subwoofer controls, and multiple input/output options, the EQX764 allows for detailed sound customization to suit your preferences.
2. Sigurnosne informacije
- Preporučena profesionalna instalacija: For optimal performance and safety, installation by a qualified car audio technician is highly recommended.
- Isključite bateriju: Uvijek isključite negativni pol akumulatora vozila prije početka bilo kakve električne instalacije kako biste spriječili kratki spoj i oštećenja.
- Proper Fusing: Ensure the power connection includes an appropriate fuse (1A maximum, within 1 foot of the battery) to protect the unit and your vehicle's electrical system.
- Izbjegavajte vlagu: Ne izlažite uređaj vodi ili prekomjernoj vlazi.
- Sigurna montaža: Mount the equalizer securely to prevent it from becoming a projectile in the event of sudden stops or accidents.
- ventilacija: Osigurajte odgovarajuću ventilaciju oko uređaja kako biste spriječili pregrijavanje.
3. Sadržaj paketa
Molimo Vas da provjerite paket za sljedeće stavke:
- Stetsom EQX764-7 Band Equalizer Unit
- Montažni nosači
- High Input Connector (Wire)
- Montažni vijci
4. Proizvod je gotovview
The Stetsom EQX764 features a user-friendly layout with clearly labeled controls and connections. Understanding each component is essential for proper setup and operation.
Kontrole na prednjoj ploči
The front panel provides access to all audio adjustment controls, illuminated by blue LEDs for visibility.
- PODNIVO: Adjusts the output level of the subwoofer channel.
- SUB FREQ: Adjusts the crossover frequency for the subwoofer output.
- HIGH/MAIN Input Switch: Selects between High-Level input and RCA (Main) input.
- VISOKI NIVO: Adjusts the input sensitivity for the High-Level input.
- GLAVNI NIVO: Adjusts the input sensitivity for the RCA (Main) input.
- FADER FRONT/REAR: Balances the audio output between the front and rear channels.
- 7-Band Equalization Controls: Individual rotary controls for adjusting the gain (+/-12dB) at specific frequencies: 50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, and 16KHz.
Priključci na stražnjoj ploči
Zadnja ploča sadrži sve ulazne i izlazne priključke.
- R SUB L OUT: Left and Right RCA outputs for the subwoofer amplifier.
- HIGH-IN: High-level input for connecting to factory head units without RCA outputs.
- R MAIN L IN: Left and Right RCA inputs for the main audio source.
- R REAR L OUT: Left and Right RCA outputs for the rear full-range amplifier.
- R FRONT L OUT: Left and Right RCA outputs for the front full-range amplifier.
- REM +: Remote turn-on input and power input terminals.


5. Podešavanje i instalacija
Follow these steps for proper installation of your EQX764 equalizer.
5.1 Montaža jedinice
Use the provided mounting brackets and screws to secure the EQX764 in a suitable location within your vehicle. Ensure the location allows for easy access to controls and adequate ventilation.

5.2 Power and Remote Activation
Connect the EQX764 to your vehicle's electrical system as follows:
- Povežite +12V terminal to the vehicle's positive battery terminal using a 20AWG cable. Install a 1A fuse within 1 foot of the battery.
- Povežite GND terminal to a clean chassis ground point.
- Povežite REM (remote) terminal to the remote output of your car radio/player using a 20AWG cable. This will turn the equalizer on and off with your head unit.

5.3 Audio veze
The EQX764 supports both RCA and High-Level inputs and provides dedicated outputs for front, rear, and subwoofer channels.
- Izvor ulaza:
- For head units with RCA outputs, connect the RCA cables from your head unit to the R MAIN L IN ports on the EQX764.
- For factory head units or those without RCA outputs, use the provided High Input Connector to connect speaker-level wires from your head unit to the HIGH-IN terminali.
- Izlaz na Amplifieri:
- Connect RCA cables from the R FRONT L OUT ports to your front full-range amplifier.
- Connect RCA cables from the R REAR L OUT ports to your rear full-range amplifier.
- Connect RCA cables from the R SUB L OUT ports to your subwoofer amplifier.

6. Uputstvo za upotrebu
Once installed, the EQX764 allows for fine-tuning of your audio system.
6.1 Input Selection and Level Adjustment
- Odaberite unos: Koristite HIGH/MAIN switch to select the appropriate input source (High-Level or RCA).
- Podesite nivo ulaza: Koristite HIGH LEVEL or MAIN LEVEL knobs to match the output voltage of your head unit. Start with these controls at their minimum and slowly increase until a clear, undistorted sound is achieved at a moderate volume from your head unit.
6.2 Fader Control
The FADER FRONT/REAR knob allows you to adjust the balance of sound between your front and rear speakers. Turn it towards 'FRONT' to emphasize front speakers or towards 'REAR' for rear speakers.
6.3 7-Band Equalization
Each of the seven rotary knobs corresponds to a specific frequency band, allowing you to boost or cut frequencies by up to 12dB. Adjust these controls to shape the sound to your preference:
- 50Hz: Controls the deepest bass frequencies.
- 125Hz: Affects mid-bass and warmth.
- 315Hz: Influences the lower midrange, body of vocals and instruments.
- 750Hz: Controls the central midrange, clarity of vocals.
- 2.2KHz: Affects upper midrange, presence of instruments.
- 6KHz: Controls lower treble, brightness of cymbals and higher frequencies.
- 16KHz: Adjusts the highest treble frequencies, airiness and sparkle.
6.4 Subwoofer Controls
The dedicated subwoofer controls provide precise management of your bass output:
- PODNIVO: Adjust the overall volume of the subwoofer output.
- SUB FREQ: Set the low-pass crossover frequency for the subwoofer. This determines the highest frequency that will be sent to your subwoofer amplifier. Adjust this to blend seamlessly with your main speakers.
7. Specifikacije
| Feature | Specifikacija |
|---|---|
| Inputs | MAIN (RCA) and HIGH IN (Wire) |
| Izlazi | SUB OUT, FRONT and REAR |
| SUB Level and Frequency Control | Da |
| Birač ulaza | MAIN and HIGH |
| Kontrole nivoa | MAIN and HIGH |
| Fader Control | PREDNJA I ZADNJA |
| Opsezi ekvilajzera | 7-band (-12dB = +12dB) |
| SUB Frequency Control Range | 60Hz - 90Hz |
| V OUT @ 14.4V (Subwoofer) | 10 V RMS |
| V OUT @ 14.4V (Front & Rear) | 8.5V RMS (Line Driver) |
| Input Sensitivity (Main RCA) | 3.3V RMS @ 14.4V |
| Input Sensitivity (High Wire) | 25V RMS @ 14.4V |
| Input Impedance (Main RCA) | 20K Ohma |
| Input Impedance (High Wire) | 1K Ohma |
| Izlazna impedansa | 47 Ohma |
| Frekvencijski odziv | 5Hz - 140kHz |
| THD | < 0.1% |
| SNR | > 100dB |
| Preslušavanje | > 85dB |
| Snabdijevanje voltage | 9V - 16V istosmjerne struje |
| Max Consumption @ 12.6V | 290mA |
| Dimenzije (D x Š x V) | 7.25" x 3.24" x 1" (184 x 82.3 x 26 mm) |
| Težina | 0.68 lb / 310 grams |

8. Otkrivanje problema
If you encounter issues with your EQX764, refer to the following common problems and solutions:
- Nema napajanja:
- Check all power connections (+12V, GND, REM) for secure contact.
- Verify the 1A fuse near the battery is intact. Replace if blown.
- Ensure the remote wire from the head unit is providing a +12V signal when the head unit is on.
- Nema izlaza zvuka:
- Confirm the correct input source (HIGH or MAIN) is selected via the switch.
- Check all RCA and High-Level input/output connections for proper seating.
- Ensure the HIGH LEVEL and MAIN LEVEL controls are not set to minimum.
- Verify that connected amplifiers are powered on and receiving a signal.
- izobličeni zvuk:
- Reduce the HIGH LEVEL or MAIN LEVEL input sensitivity.
- Lower the gain settings on your amplifiers.
- Ensure none of the equalization bands are boosted excessively.
- Hissing or Engine Noise:
- Ensure the EQX764 and all amplifiers have a solid, clean ground connection.
- Route RCA cables away from power cables to prevent interference.
- Check for proper grounding of the head unit.
9. Održavanje
The Stetsom EQX764 is designed for durability and requires minimal maintenance.
- čišćenje: Za čišćenje uređaja koristite meku, suhu krpu. Izbjegavajte abrazivna sredstva za čišćenje ili rastvarače.
- Veze: Povremeno provjeravajte sve ožičenja kako biste bili sigurni da su sigurna i bez korozije.
10. Garancija i podrška
Stetsom products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Stetsom webSačuvajte račun kao dokaz o kupovini u slučaju bilo kakvih reklamacija.
For additional assistance, you may contact Stetsom customer support through their official channels.





