--- product_id: 317230394 title: "Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs" brand: "sound storm laboratories" price: "€ 98.22" currency: EUR in_stock: true reviews_count: 5 category: "Sound Storm Laboratories" url: https://www.desertcart.gr/products/317230394-sound-storm-laboratories-s4eq-4-band-pre-amp-car-equalizer store_origin: GR region: Greece --- # Dual color illumination for sleek control Gold-plated outputs for premium signal clarity 4-band EQ with ±18dB boost/cut Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs **Brand:** sound storm laboratories **Price:** € 98.22 **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your drive with sound that commands attention — don’t just listen, own the vibe! ## Quick Answers - **What is this?** Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs by sound storm laboratories - **How much does it cost?** € 98.22 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/317230394-sound-storm-laboratories-s4eq-4-band-pre-amp-car-equalizer) ## 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 - • **Trusted Reliability:** Backed by a 1-year Platinum Online Dealer Warranty, this compact powerhouse fits perfectly in your dash and your lifestyle. - • **Versatile Connectivity:** Switch between 2 source inputs seamlessly, adapting to your evolving audio setup without missing a beat. - • **Luxury Signal Integrity:** Gold-plated front, rear, and subwoofer outputs ensure crystal-clear sound transmission and reduce signal loss. - • **Precision Sound Sculpting:** 4-band equalizer with center frequencies at 40Hz, 150Hz, 1kHz, and 20kHz lets you tailor your car audio with surgical accuracy. - • **Intuitive Control Interface:** Dual color illumination and dedicated controls for subwoofer level, master volume, phase selector, and fader put you in command effortlessly. ## Overview The Sound Storm Laboratories S4EQ is a compact 4-band pre-amp car equalizer featuring gold-plated outputs for front, rear, and subwoofer channels. It offers ±18dB boost/cut at key frequencies (40Hz, 150Hz, 1kHz, 20kHz) with dual color illumination for easy control. Additional features include subwoofer level control, master volume, phase selector, fader control, and 2 source inputs. Designed for audiophiles seeking premium sound customization in their vehicle, it comes with a 1-year warranty and a solid build weighing 680g. ## Description Sound storm S4EQ 4 band pre-amp car equalizer with gold-plated front/rear and subwoofer outputs Review: Excellent value, unless... - ...you plan to use the subwoofer output. That is the only real issue with this unit. The sub output level is very low especially compared to the full range output, and the frequency adjustment doesn't really work correctly. If you plan to use the full range outputs only, this does the job very well especially for the price! Output has a small amount of hiss (almost inaudible). It has a solid amount of gain to drive the outputs. Internally it has a +-15 volt power supply to drive its op amps, and power supply ground is isolated from the I/O ground. Sound quality is quite good. You will spend a LOT more to get anything better. And to those that complained about "terrible" sound quality: the phase switch on mine was set to 180 degrees new out of the box, this is NOT the correct way on a properly installed system. Start with 0 degrees, then if you aren't happy TRY the 180 and compare. I bet most systems will sound worse with the 180 setting. Review: Chulada de equalizador básico no necesitas más bandas con eso puedes dejar excelente calidad audio - Básico pero muy buena calidad de audio entregada. Distorsiona si la ganancia está muy alta Aún con los amplificadores y los subwoofer conectados como se debe. Ya probé varias fallas posibles y nada pero sin funciona bien a una ganancia media alta ## Features - Dual Color Illumination - Variable Subwoofer Filter, Subwoofer Level Control, Master Volume Control - Switchable Phase Selector, Fader Control, Input Selector, 2 Source Input - Gold-Plated Front, Rear, and Subwoofer Outputs, Pre-amp Output: 7 V - EQ Band Center Frequencies: 40 Hz, 150 Hz, 1 kHz, 20 kHz.Boost / Cut at Center Frequencies: + / - 18 Db.Dimensions: 4-1 / 4" (L) x 6-13 / 16" (W) x 1-1 / 8" (H).Warranty: Sound Storm Provides A 1 Year Platinum Online Dealer Warranty So Long As The Purchase Is Made Through desertcart.com ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000O50VEQ | | Batteries | 12V batteries required. | | Best Sellers Rank | #70,855 in Electronics ( See Top 100 in Electronics ) #16 in Car Audio & Video Amplifier Equalizers | | Color | Black | | Customer Reviews | 4.4 4.4 out of 5 stars (1,128) | | Date First Available | 7 August 2012 | | Item Weight | 680 g | | Item model number | S4EQ | | Other display features | Wireless | | Product Dimensions | 10.92 x 17.27 x 2.79 cm; 680.39 g | | Whats in the box | 4-band Preamp Equalizer | ## Images ![Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs - Image 1](https://m.media-amazon.com/images/I/71lr5+s5FoL.jpg) ![Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs - Image 2](https://m.media-amazon.com/images/I/81fL1OrUO2L.jpg) ![Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs - Image 3](https://m.media-amazon.com/images/I/71Wi-iWfFhL.jpg) ![Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs - Image 4](https://m.media-amazon.com/images/I/81AI97VG9gL.jpg) ![Sound Storm Laboratories S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer Outputs - Image 5](https://m.media-amazon.com/images/I/71uePb51wWL.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 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent value, unless... *by A***R on 21 August 2023* ...you plan to use the subwoofer output. That is the only real issue with this unit. The sub output level is very low especially compared to the full range output, and the frequency adjustment doesn't really work correctly. If you plan to use the full range outputs only, this does the job very well especially for the price! Output has a small amount of hiss (almost inaudible). It has a solid amount of gain to drive the outputs. Internally it has a +-15 volt power supply to drive its op amps, and power supply ground is isolated from the I/O ground. Sound quality is quite good. You will spend a LOT more to get anything better. And to those that complained about "terrible" sound quality: the phase switch on mine was set to 180 degrees new out of the box, this is NOT the correct way on a properly installed system. Start with 0 degrees, then if you aren't happy TRY the 180 and compare. I bet most systems will sound worse with the 180 setting. ### ⭐⭐⭐⭐⭐ Chulada de equalizador básico no necesitas más bandas con eso puedes dejar excelente calidad audio *by J***E on 5 June 2022* Básico pero muy buena calidad de audio entregada. Distorsiona si la ganancia está muy alta Aún con los amplificadores y los subwoofer conectados como se debe. Ya probé varias fallas posibles y nada pero sin funciona bien a una ganancia media alta ### ⭐⭐⭐⭐⭐ Problem installing rca's *by G***I on 18 January 2015* Works fine BUT- I had same problem as others. One of the RCA plugs broke loose inside when I installed my cables, messing up the master volume. I've got the cables zip-tied at the rear which keeps the circuit board from shorting out. The RCA cables I used fit very tightly and were difficult to install. From now on when I install cables (to any unit) I will install them onto another device first, like an old CD player to make sure they are not too tight. You shouldn't have to use so much force that it breaks the unit you are installing them on. I don't think it was the fault of the EQ here. Everything about the unit seems to be of very good quality and the EQs performance is great. Clean and clear sound, and the preamp voltage rise really cranks up my amplifier's output. I really like this EQs variable sub frequency control. It allows you to change the crossover frequency right from the dash instead of resetting the amp. Works awesome-I can optimize hz values for different music on the fly. It makes a huge difference in dialing in the perfect sound, song to song. The rest of of this EQs performance is very good too. Master volume, sub volume and f/r fader-all good. The four band EQ boost/cut +/-18db provides a definitely noticeable difference when you dial the controls. Overall a very good unit. Would purchase again. The variable sub frequency control really gets it done-5 stars. Update Review 2-25-15 Purchased another S4EQ for another vehicle. Pre-installed my cables onto the old head unit before using them on the new EQ. No problems. Using the EQ on a sub only signal from my head unit then to an amp. EQ door speakers with a seven band Clarion. Works great. Love controlling volumes AND sub frequency (S4EQ) using three easy to reach dials. No having to read displays while I'm driving. SSL S4EQ-Spot on. Perfect for a great price. Would definitely use again. ## 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/317230394-sound-storm-laboratories-s4eq-4-band-pre-amp-car-equalizer](https://www.desertcart.gr/products/317230394-sound-storm-laboratories-s4eq-4-band-pre-amp-car-equalizer) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-17*