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Description
Nobsound EQ9 HiFi 9-Band Stereo EQ Preamp Analog Equalizer Audio Processor for Home/CarProduct Description 9 band EQ equalizer: With independent and rich frequency band control (20Hz 60Hz 125Hz 250Hz 500Hz 1KHz 2kHz 6KHz 16KHz), within 6dB to +6dB range. With 2 groups of RCA inputs and outputs, without plugging in and out cables repeatedly. High performance: The SNR of EQ9 exceeds 111dB, combined with a frequency response range of 20Hz 20kHz, with a distortion level as low as 0. 001%, ensuring perfect reproduction of audio signal.
Product Description
- 9-band EQ equalizer: With independent and rich frequency band control (20Hz/60Hz/125Hz/250Hz/500Hz/1KHz/2kHz/6KHz/16KHz), within -6dB to +6dB range. With 2 groups of RCA inputs and outputs, without plugging in and out cables repeatedly.
- High-performance: The SNR of EQ9 exceeds 111dB, combined with a frequency response range of 20Hz-20kHz, with a distortion level as low as 0.001%, ensuring perfect reproduction of audio signal.
- Bypass design and balance adjustment: with bypass mode to turn off EQ preamplification, the audio signal will output from IN to OUT directly without any processing, convenient to enjoy original sound. Also with a balance control to compensate for the left and right channel of all outputs and prevent the sound field positioning from deviating from the center position.
- Attractive looking and powerful design: black aluminum alloy shell, good shielding performance, cool, exquisite and durable appearance, very suitable for audiophiles who pursue high fidelity sound.
Specifications
| Audio input: | 2 groups of Stereo RCA |
| Audio output: | 2 groups of Stereo RCA |
| Input sensitivity: | 1V |
| Rated output level: | 2V |
| Frequency response: | 20Hz-20kHz(±0.4dB) |
| Frequency adjustment range: | ±6dB |
| THD: | 0.001%@1kHz |
| SNR: | ≥111dB |
| Dimensions(W*D*H): | 220*65*21mm / 8.66*2.56*0.83in |
| Net weight: | 457g / 1.0lb |
| Package weight: | 700g / 1.54lb |
| Packing list: | 1*EQ9 Preamp; 1*DC12V Power Adapter |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 1168 reviews
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Product Reviews
★★★★★ 5
Comfortable
Size: 10.5 Wide, Color: Black Leather/Black
Very comfortable shoes, you feel like walking on clouds
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Reviewed in the United States on April 26, 2026
★★★★★ 3
Not for all surfaces.
Size: 11.5 Wide, Color: Black Leather/Optic White
The sneakers look great and are comfortable on flat, smooth surfaces. Warning: The sole is very flexible and not well cushioned so a walk on rough or uneven surfaces can become uncomfortable quickly. Just understand the limitations.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Comfort Meets Coastal Style – A New Favorite Tee
Size: X-Large, Color: Dark Heather
The Costa Del Mar Costa Topwater T‑Shirt is everything you want in a casual, everyday shirt. The material is super soft and lightweight, making it perfect for warm weather or long days outdoors. It feels breathable and comfortable without being too thin.
The fit is spot on—true to size with a relaxed feel that doesn’t look baggy. The design is clean and stylish, with that classic Costa vibe that’s perfect whether you’re out on the water or just hanging out.
After multiple washes, it’s held up great—no shrinking, fading, or losing its shape. You can tell it’s made with quality materials that are built to last.
If you’re looking for a comfortable, good-looking t-shirt that represents a laid-back coastal lifestyle, this one is a great pick. Definitely worth it!
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Great shirt, runs a tad small
Size: X-Large, Color: Navy
Great looking shirt and good value for the money. Depending on your build you may want to order a size larger. I'm 6'4" and 207. I typically wear an XL and ordered an XL. It fits me but is a little snug there is not much room in the shoulders and sleeves or body for that matter. If I were back to my previous weight of 245 with a larger waist I would have to return it and get a XXL.
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Reviewed in the United States on April 28, 2025
★★★★★ 5
Nice t-shirt
Size: Large, Color: Light Blue
Great for everyday wear. Love the color. Use for mostly for gym and pool. Good quality material. Fits true to size.
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Reviewed in the United States on January 3, 2026