1. Киришүү
Thank you for choosing the Gravity 7 Band Graphic Equalizer GR-EQ9. This equalizer is designed to provide precise control over your car audio system, allowing you to fine-tune sound frequencies for an enhanced listening experience. Please read this manual thoroughly before installation and operation to ensure proper use and optimal performance.
2. Коопсуздук маалыматы
- Орнотууну баштоодон мурун ар дайым унаанын аккумуляторун сууруп алыңыз.
- Кыска туташуунун алдын алуу үчүн бардык зымдар туура изоляцияланганын текшериңиз.
- Mount the equalizer securely to avoid movement during vehicle operation.
- Do not operate the unit in wet conditions or expose it to excessive moisture.
- Эгерде сиз орнотуу процессинин кайсы бир бөлүгү боюнча күмөн санасаңыз, кесипкөй унаа аудио орнотуучусуна кайрылыңыз.
3. Пакеттин мазмуну
Verify that all items are present in your GR-EQ9 package:
- Gravity 7 Band Graphic Equalizer GR-EQ9 Unit
- Монтаждоо кронштейндери
- Монтаждоо бурамалар
- Power/Ground/Remote Wiring Harness
- User Manual

Image: Included mounting brackets, screws, and wiring harness for the GR-EQ9.
4. Продукт бүтүп калдыview
4.1. Алдыңкы панелдин башкаруу элементтери

Сүрөт: Жогорку view of the GR-EQ9 front panel with all controls.
- КОШУМЧА ДЕҢГЭЭЛ: Adjusts the output level of the subwoofer.
- Көлөмү: Бүтүндөй система үчүн үн көлөмүн башкаруунун мастери.
- КОШУМЧА ЖЫШТЫК: Adjusts the low-pass crossover frequency for the subwoofer output (60Hz to 90Hz).
- FADER: Алдыңкы жана арткы динамиктердин ортосундагы аудио чыгышын тең салмактайт.
- AUX/CD Selector: Switches between Main (CD) and Auxiliary (AUX) input sources.
- 7-Band Equalizer Knobs: Individual controls for 50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, and 16KHz frequencies. Each band can be boosted or cut by -12dB to +12dB.
- HIGH LEVEL / MAIN LEVEL: Input level adjustment for high-level or main RCA inputs to prevent distortion.
4.2. Арткы панелдин туташуулары

Image: Close-up of the GR-EQ9 rear panel connections.
- MAIN IN (L/R): RCA inputs for the primary audio source (e.g., head unit).
- AUX IN (сол/оң): RCA inputs for an auxiliary audio source.
- FRONT OUT (L/R): RCA outputs for front speakers.
- REAR OUT (L/R): RCA outputs for rear speakers.
- SUB OUT (L/R): RCA outputs for subwoofer amplifier. This output features a 10V line driver.
- Power Terminals (+12V, REM, GND): Connections for power, remote turn-on, and ground.
5. Орнотуу
5.1. Орнотуу
The GR-EQ9 is designed for flexible installation in various vehicle locations. Consider a location that allows for easy access to controls and proper ventilation.

Image: Mounting diagram for the GR-EQ9.
- Choose a suitable mounting location (e.g., under the dashboard, in the center console).
- Use the provided mounting brackets as a template to mark screw holes.
- Drill pilot holes and secure the brackets using the supplied screws.
- Attach the GR-EQ9 unit to the mounted brackets.
5.2. Электр зымдары
Proper wiring is crucial for optimal performance and safety. Ensure all connections are secure and correctly polarized.
- Кубат туташуу (+12V): Connect the +12V wire from the equalizer to a constant +12V power source from the vehicle's battery. Use an inline fuse (not supplied) for protection. The unit operates between 9V and 16V.
- Жерге туташуу (GND): Connect the GND wire to a clean, unpainted metal surface on the vehicle chassis.
- Алыстан күйгүзүү (REM): Connect the REM wire to the remote output of your head unit. This will turn the equalizer on and off with your car's audio system.
- RCA киргизүүлөр: Connect the RCA output from your head unit to the БАС КИРҮҮ (L/R) inputs on the GR-EQ9. If using an auxiliary device, connect its RCA output to the AUX IN (L/R) inputs.
- RCA чыгаруулары: туташтыруу FRONT OUT (L/R), REAR out (L/R), and ЧЫГАРЫҢЫЗ (L/R) from the GR-EQ9 to the corresponding inputs on your ampаман калгандар.
6. Иштөө нускамалары
Once installed, the GR-EQ9 allows for precise audio customization.
- Күйгүзүү: The unit will power on automatically when the remote turn-on signal is received from your head unit.
- Киргизүүнү тандоо: колдонуу AUX/CD Selector button to switch between your main audio source (CD) and the auxiliary input (AUX).
- Үндү көзөмөлдөө: тууралаңыз VOLUME knob to set the overall listening level.
- Сабвуферди башкаруу:
- колдонуу SUB LEEVEL knob to control the output volume of your subwoofer.
- тууралаңыз SUB ЖЫШТЫК knob to set the low-pass crossover point for the subwoofer, typically between 60Hz and 90Hz, to blend with your main speakers.
- Эквалайзер тууралоолору: Use the seven individual frequency knobs (50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, 16KHz) to boost or cut specific frequency ranges. Adjust these to tailor the sound to your preference and vehicle acoustics. Each band offers a range of -12dB to +12dB.
- Fader Control: The FADER knob allows you to adjust the balance of sound between your front and rear speakers.
- Киргизүү деңгээлин жөндөө: колдонуу HIGH LEVEL / MAIN LEVEL switch and corresponding knobs to match the input signal level from your head unit, preventing distortion.
7. Техникалык тейлөө
- Жумшак, кургак чүпүрөк менен сүртүп, аппаратты таза кармаңыз.
- Катуу химиялык заттарды же абразивдүү тазалагычтарды колдонуудан алыс болуңуз.
- Бардык туташуулардын коопсуз жана коррозиядан алыс болушун камсыз кылыңыз.
8. Кыйынчылыктарды
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Күч жок | Blown fuse; incorrect wiring; no remote signal. | Check and replace fuse; verify +12V, GND, and REM connections. |
| Үн жок | Туура эмес RCA байланыштары; amplifier not powered; input source issue. | Verify all RCA cables are connected correctly; ensure amplifiers are on; check head unit output. |
| Бурмаланган үн | Input level too high; equalizer settings too extreme; poor grounding. | Adjust input level using HIGH LEVEL/MAIN LEVEL controls; reduce EQ boost; check ground connection. |
| Noise/Hiss | Poor grounding; RCA cables too close to power wires; gain settings too high. | Ensure proper grounding; reroute RCA cables away from power wires; adjust ampкөтөрүүчү пайда орнотуулары. |
9. Техникалык шарттар
- Модел: GR-EQ9
- Продукциянын өлчөмдөрү: 1.8 x 9 x 7.7 дюйм
- Элемент Салмагы: 1.6 фунт
- Эквалайзер тилкелери: 7 (50Гц, 125Гц, 315Гц, 750Гц, 2.2 кГц, 6 кГц, 16 кГц)
- Boost/Cut: -12 dB to +12 dB per band
- Сабвуфердин кроссовер жыштыгы: Adjustable (60Hz-90Hz)
- Line Driver Output: 10V (Subwoofer Output)
- Электр камсыздоо: 9V-16V DC
- Өзгөчөлүктөр: EPICENTER, Fully Adjustable EQ Bands, Line Driver, RCA Output, Subwoofer Control
10. Кепилдик
This Gravity product is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your purchase or contact customer support for specific terms and conditions. Keep your proof of purchase for warranty claims.
11. Колдоо
For technical assistance, troubleshooting, or warranty inquiries, please contact Gravity customer support. Contact details can typically be found on the product packaging or the official Gravity webсайт.