--- product_id: 164829009 title: "Soundstream PROX4.1 Bass Reconstruction Processor" brand: "soundstream" price: "€ 0.29" currency: EUR in_stock: false reviews_count: 6 url: https://www.desertcart.pt/products/164829009-soundstream-prox4-1-bass-reconstruction-processor store_origin: PT region: Portugal --- # 2Ch. RCA input 1800 phase inversion Variable crossover options Soundstream PROX4.1 Bass Reconstruction Processor **Brand:** soundstream **Price:** € 0.29 **Availability:** ❌ Out of Stock ## Summary > 🎶 Elevate Your Audio Game with Soundstream PROX4.1! ## Quick Answers - **What is this?** Soundstream PROX4.1 Bass Reconstruction Processor by soundstream - **How much does it cost?** € 0.29 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/164829009-soundstream-prox4-1-bass-reconstruction-processor) ## Best For - soundstream enthusiasts ## Why This Product - Trusted soundstream brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Subsonic Control:** Enjoy deep bass without distortion using the 3-stage filter. - • **Professional Grade:** Engineered for audiophiles who demand the best in sound quality. - • **Unleash Your Sound:** Transform your audio experience with precision tuning. - • **Seamless Integration:** Easily connect with multiple input options for versatile setups. - • **Tailored Frequencies:** Customize your sound with variable high-pass and low-pass filters. ## Overview The Soundstream PROX4.1 Bass Reconstruction Processor is a high-performance audio processor designed for audiophiles. It features multiple signal input/output options, customizable crossover settings, and advanced filtering capabilities to deliver an unparalleled sound experience. Perfect for both professional and personal use, this processor ensures that every note is crystal clear and perfectly tuned. ## Description 4-Way electronic Crossover optimized for extreme SPL applications | 2CH. RCA front/full range stereo or optional mixed mono Input ## Features - Signal input/output options: | 2Ch. RCA front/full range stereo or optional mixed mono input | optional 1800 phase inversion switch for front/full range input - High/tweeter signal processing options: | variable 1khz-10khz high-pass Crossover | mid-high signal processing options: | variable 12Db 550hz-3khz high-pass & 4khz-20khz low-pass Crossover - Mid-low signal processing options: | variable 12Db 50hz-400hz high-pass & 30hz-5khz low-pass Crossover | optional 3-stage 24Db subsonic filter | variable 50hz-350hz 12Db low-pass Crossover ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0736J1HSM | | Additional Features | Subwoofer | | Antenna Location | construction | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | [Inferred] Stereo, Surround Sound | | Battery Average Life | 5 Hours | | Best Sellers Rank | #190,574 in Electronics ( See Top 100 in Electronics ) #197 in Car Amplifier Equalizers | | Brand | Soundstream | | Built-In Media | Bass Equalizer | | Color | white | | Compatible Devices | Home Theater, Projector, Some Desktop and Laptop Computers, Television | | Compatible with Vehicle Type | Car | | Connectivity Protocol | RCA | | Connectivity Technology | RCA | | Control Method | App | | Controller Type | Remote Control | | Customer Package Type | FFP | | Customer Reviews | 4.1 out of 5 stars 121 Reviews | | Enclosure Material | Aluminum" or "Titanium" or "Silk" | | Frequency Response | 50 Hz | | Global Trade Identification Number | 00709483056541 | | Is Waterproof | FALSE | | Item Height | 5 inches | | Item Weight | 1.55 Pounds | | MP3 player | No | | Manufacturer | Soundstream | | Model Name | PROX4.1 | | Model Number | PROX4.1 | | Mounting Type | Dash Mount | | Number Of Circuits | 5 | | Number of Audio Channels | 4.1 | | Number of Items | 1 | | Power Source | Corded Electric | | Speaker Maximum Output Power | 100 Watts | | Speaker Size | 1 Inches | | Speaker Type | Tweeter | | Specific Uses For Product | construction | | Subwoofer Connectivity Technology | Wired | | Subwoofer Diameter | 12 Inches | | Tweeter Diameter | 1 Inches | | UPC | 709483056541 | | Warranty Type | Limited Warranty | ## Product Details - **Brand:** Soundstream - **Speaker Maximum Output Power:** 100 Watts - **Frequency Response:** 5E+1 Hz - **Connectivity Technology:** RCA - **Audio Output Mode:** [Inferred] Stereo, Surround Sound ## Images ![Soundstream PROX4.1 Bass Reconstruction Processor - Image 1](https://m.media-amazon.com/images/I/71uBjCE5ybL.jpg) ## Customer Reviews ### ⭐ 1.0 out of 5 stars Very poor!!!!!!! *by D***Z on Reviewed in the United Kingdom on 17 November 2020* The buttons are Stuck inside the case and will not come out very poor for the money!!! Waited three weeks for it to be delivered for it to use it in 10 days time Have to spend money to get it fixed ### ⭐⭐⭐ Harsh sound around crossover point *by K***P on Reviewed in Canada on 6 October 2020* This is an OK active crossover, and the price is quite appealing considering its features. However, it sounds harsh at the crossover point. I had it set up with a 2.1 home audio setup consisting of 1 sub, and left and right channels consisting of 1 woofer and 1 tweeter each. All 5 of these speakers are driven by separate amps, and I was using this Soundstream device for the active crossovers. Before using this Soundstream device I was using a custom-made 4th-order Linkwitz-Riley active crossover circuit that I built myself (I am an electronics engineer). This crossover I made has worked quite well for several years, but its noise floor is pretty high, resulting in a lot of white noise when the volume is turned up. I was trying to eliminate this problem by switching to the Soundstream crossover.The problem with this Soundstream crossover arose at the crossover point from the woofers to the tweeters, which I wanted to set to 3 kHz. When setting the woofer LPF and the tweeter HPF both to 3 kHz, the output sounds bad around 3 kHz. On some songs it's downright painful to listen to, and on most it is at least somewhat fatiguing. If I lowered the LPF frequency and raised the HPF frequency, the harshness was reduced, but now there was a gap in the frequency response. The problem still occurred when changing to other crossover frequencies, and happened at all output levels. This issue was not present at all on my custom-made crossover circuit, and overall my circuit sounds a lot better. The only advantage that the Soundstream has, sound quality-wise, is that its output has much less noise than my circuit.If you're not too picky about sound quality, this harshness at the crossover point might not be an issue for you, but over time you may come to notice it if you're used to high-quality sound systems.In terms of features, this Soundstream crossover is pretty good, but not great. Having 4 crossover bands plus an unaltered line-level output provides lots of flexibility, especially compared to 2- or 3-band crossovers. Mute and volume control on all outputs is also good to have.Some features it lacks are:- For the sub, there are L & R inputs and L & R outputs. The only way to combine the inputs into a mono signal (which is important if you only have 1 sub) is to make the entire audio chain mono. So, the signal going to your main speakers will also be mono. It would be much better to put that mono/stereo switch on just the sub's audio path, rather than where it currently is, right at the main input.- The mid-low and mid-high outputs have to be bandpass filters. You can't set them to just use a LPF or just use a HPF: they must use both at all times. For example, if you want an output that has a HPF at 80 Hz, and no LPF (perhaps because you're driving a speaker that already has a passive crossover), you can't do that.Overall I wouldn't recommend this active crossover due to its sound quality issues at the crossover point. If you're not picky enough about sound quality that you won't notice this issue, then you probably shouldn't be putting in the effort to set up an active crossover system; you may as well just use passive crossovers. If you are picky enough that you want an active crossover system, then you will probably notice this issue. I will be returning mine and looking for another option. ### ⭐⭐⭐⭐⭐ Award winning soundstream well atleast there processors *by T***N on Reviewed in the United States on 9 September 2020* This product works great . If you have alternator whine or anything like it this product will make it more pronounced so know that going in . This is absolutely great for the price soundstream is known for winning all sort of awards for there processor and crossovers I have been very surprised by there stuff so far I am 25 yes in car audio I run about 8000rms system hdx12 s sound qubed and 8000.1 vulcan stetsom the subs and amp both have surprised me with how great they are the stetsom is a beast and you must have a ho alt and battery bank to keep up with it but well worth the investment if you want to shake cars 10 ahead of yours buy this crossover and a stetsom amp wowwwww!!!!!!!! ## Frequently Bought Together - Soundstream PROX4.1 Bass Reconstruction Processor - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black - Tan QY 2RCA to 2RCA Cable 3Ft, Gold-Plated 2 RCA Male to 2 RCA Male Stereo Audio Cable for Home Theater, HDTV, Gaming Consoles, Hi-Fi Systems (3Ft/1M) --- ## 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.pt/products/164829009-soundstream-prox4-1-bass-reconstruction-processor](https://www.desertcart.pt/products/164829009-soundstream-prox4-1-bass-reconstruction-processor) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*