--- product_id: 1151674 title: "S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer - Gold-Plated Front/Rear and Subwoofer Outputs" brand: "sound storm laboratories" price: "€ 91.57" currency: EUR in_stock: true category: "Wireless" url: https://www.desertcart.gr/products/1151674-s4eq-4-band-pre-amp-car-audio-stereo-equalizer-gold store_origin: GR region: Greece --- # Dual color illumination Gold-plated outputs for pure sound 4-band precision EQ S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer - Gold-Plated Front/Rear and Subwoofer Outputs **Brand:** sound storm laboratories **Price:** € 91.57 **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your drive with sound that commands attention! ## Quick Answers - **What is this?** S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer - Gold-Plated Front/Rear and Subwoofer Outputs by sound storm laboratories - **How much does it cost?** € 91.57 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/1151674-s4eq-4-band-pre-amp-car-audio-stereo-equalizer-gold) ## Best For - sound storm laboratories enthusiasts ## Why This Product - Trusted sound storm laboratories brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Visual Vibe:** Dual red and green illumination adds a sleek, modern aesthetic to your car audio setup. - • **Optimized Soundstage:** Fader and subwoofer volume controls let you balance your audio environment perfectly on the go. - • **Premium Connectivity:** Gold-plated front, rear, and subwoofer outputs ensure superior signal transfer and durability. - • **Tailored Sound Control:** 4-band equalizer with adjustable subwoofer frequency (30Hz-250Hz) to customize your bass and mids. - • **Crystal-Clear Audio Precision:** Experience ultra-low distortion with THD <0.01% for pristine sound clarity. ## Overview The Sound Storm Laboratories S4EQ is a 4-band pre-amp car audio equalizer featuring gold-plated front, rear, and subwoofer outputs for enhanced signal quality. It offers ultra-low distortion (THD <0.01%) and a high signal-to-noise ratio (>90dB), with adjustable subwoofer frequency and fader controls. Dual color illumination (red and green) provides a stylish interface, making it a top choice for audiophiles seeking precise, customizable in-car sound. ## Description Sound Storm Laboratories S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer - Gold-Plated Front/Rear and Subwoofer Outputs ## Features - Front, rear and subwoofer outputs - THD: <0.01% - Signal-to-noise ratio: >90dB - Dual color illumination - Gold-plated connectors - Front, rear and subwoofer outputs; Fader control; Subwoofer volume control - Subwoofer Frequency 30Hz to 250Hz variable Bass 40Hz Midbass 150Hz - Mid 1kHz High 20kHz THD: <0.01% - Signal-to-noise ratio: >90dB Gold-plated connectors - Dimensions (W x D x H): 7" X 5-3/8" x 1"Dual Color Illumination (Red and Green) ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #60,610 in Electronics ( See Top 100 in Electronics ) #73 in Car Amplifier Equalizers | | Customer Reviews | 4.4 out of 5 stars 1,179 Reviews | ## Images ![S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer - Gold-Plated Front/Rear and Subwoofer Outputs - Image 1](https://m.media-amazon.com/images/I/71lr5+s5FoL.jpg) ## Questions & Answers **Q: What can this do for my audio quality? Can it improve bass? I'm using the Sennheiser 598's. Thanks for your time!** A: Assuming that you are asking about the use of headphones in a car audio application, the SSL4EQ can raise the pre-amp line-out voltage from the FM/CD/HeadUnit to 7 volts. A typical head-unit alone outputs from 2 to 4 volts. The voltage rise achieved can help audio quality because a stronger signal will better reproduce weak audio frequencies and background music which may be difficult to isolate and amplify down the line.Signal voltage rise would also produce rises in volume overall, and a good clean volume rise in bass frequencies.This all depends on clean, quality audio signals from the start. Your device must also be able to handle audio line voltage rise as applied.Whether you are Aux Bluetooth or direct plugin I don't know, but if you can modify your line output using an EQ, at least you'll gain some useful rise in signal voltage until you reach distortion levels and you will have one more way to tune sound frequencies with the EQ.Hope that helps-you might also contact Sound Storm Laboratories tech, or for non-car audio (portable Windows media, USB devices and Android apps) try contacting the folks at Fiio for headphones amplification. Good luck.Pnuts. **Q: So the knob lights that it shows in the picture are not actually there right?** A: All these answers are right the light aluminates from the circle around the knob not on the knob itself. but I wil say that this is a great EQ I use it instead of a head unit with my phone... **Q: can I use a monoblock amp of 500 watts and one os this for the mids cus I got another mono amp for the subs** A: Yes I have two amps hooked to it. **Q: do the controls push in?** A: Only the button to change the color ....and the button to change to "aux" or "RCA" but the rest of them don't push in ## Frequently Bought Together - Sound Storm Laboratories S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer - Gold-Plated Front/Rear and Subwoofer Outputs - RECOIL RCI412 100% Oxygen Free Copper 12ft 4-Channel RCA Audio Cable, Twisted Pair with Noise Reduction - RCA Y-Adapter Splitter cable 2Pack,1 RCA Male to 2 RCA Female Stereo Audio Video Subwoofer Car Audio Cable Y Splitter Adapter Extension Cord for Home Theater, Hi-Fi System, Amplifier, Speaker-0.6 Feet --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/1151674-s4eq-4-band-pre-amp-car-audio-stereo-equalizer-gold](https://www.desertcart.gr/products/1151674-s4eq-4-band-pre-amp-car-audio-stereo-equalizer-gold) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-09*