--- product_id: 12344369 title: "Harrison Labs FMOD Inline Crossover Pair 70 Hz High Pass RCA" brand: "unifun" price: "$125.02" currency: USD in_stock: true reviews_count: 8 category: "Unifun" url: https://www.desertcart.ec/products/12344369-harrison-labs-fmod-inline-crossover-pair-70-hz-high-pass store_origin: EC region: Ecuador --- # 70 Hz high pass frequency RCA male-to-male compatibility 12 dB/oct crossover slope Harrison Labs FMOD Inline Crossover Pair 70 Hz High Pass RCA **Brand:** unifun **Price:** $125.02 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your audio game—because your speakers deserve the perfect crossover! ## Quick Answers - **What is this?** Harrison Labs FMOD Inline Crossover Pair 70 Hz High Pass RCA by unifun - **How much does it cost?** $125.02 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/12344369-harrison-labs-fmod-inline-crossover-pair-70-hz-high-pass) ## Best For - unifun enthusiasts ## Why This Product - Trusted unifun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Pack Convenience:** Sold in pairs for balanced stereo setups or multi-zone systems - • **70 Hz High Pass Filter:** Optimized crossover point to protect your speakers and enhance bass integration - • **Precision 12 dB/oct Slope:** Seamlessly filters frequencies for crystal-clear sound separation - • **Universal RCA Compatibility:** Plug-and-play with any RCA input amplifier or receiver - • **High-Speed Signal Processing:** Maintains audio fidelity without introducing hiss or distortion ## Overview The Harrison Labs FMOD Inline Crossover Pair offers a precise 12 dB per octave high pass filter at 70 Hz, designed to integrate seamlessly with RCA input amplifiers. Sold in pairs, these compact, high-speed crossovers enhance sound clarity by effectively separating bass frequencies, preventing speaker distortion, and optimizing subwoofer performance in home audio setups. ## Description FMODs feature a 12 dB per octave crossover slope and are compatible with all RCA type input amps. Sold in pairs. Review: Works perfectly to integrate subwoofer and bookshelves - If anyone is wondering these work really well to integrate a subwoofer into a system if you have extra pre-outs. My amp is a nuforce sta200 and has high gain so the integrated high pass filter on the kef kc62 had a hiss sound when the music was not playing so I changed to these instead and works like a charm. My system: source is raspberry pi4 running moode audio player connected via usb to Denafrips Ares II connected via rca to Schitt Saga + (tube buffer turned on) connected via one preout rca to Kef kc62 subwoofer, the second preout rca cables to FMOD 70hx high pass filters connected directly to Nuforce STA200 amp driving Kef LS50s. For my room the Kef kc62crossover is just a click above 70hz and integrates nicely with the LS50s. Review: Amp or subwoofer lacking a hi-pass filter? Get these. - Using these between my Emotiva pre-amp and amplifier to filter out the lower frequencies to my KEF Q100 bookshelfs. They work flawlessly and haven’t heard any difference in sound quality, if anything it’s simply improved by the speakers not pushing out messy bass notes they can’t reproduce well, and leaving that task up to my SVS subwoofer which i have crossing over at 80hz (per manufacturer’s recommendations). ## Features - Item Category: Audio Or Video - Item Trademark: HARRISON LABS - Manufacturer: Harrison Labs ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0006N41JW | | Best Sellers Rank | #1,604 in RCA Cables #5,787 in Car Audio & Video Accessories | | Brand | UNIFUN | | Brand Name | UNIFUN | | Cable Type | Coaxial | | Color | Gold | | Compatible Devices | Amplifier, Receiver, Audio Components with RCA Inputs | | Compatible Phone Models | No Compatible Phone Models | | Connector Gender | Male-to-Male | | Connector Type | 3-pin Xlr and Rca | | Customer Reviews | 4.7 out of 5 stars 28 Reviews | | Frequency | 70 Hz | | Indoor Outdoor Usage | Indoor | | Item Shape | Round | | Item Weight | 1.44 ounces | | Manufacturer | Harrison Labs | | Maximum Voltage | 10 Volts | | Model | FMOD | | Number of Items | 2 | | Number of Pins | 6 | | Other Special Features of the Product | High Speed | | Part Number | 266-272 | | Recommended Uses For Product | Connecting audio components in a home entertainment system, particularly for high pass filtering applications. | | Special Feature | High Speed | | UPC | 844632053207 | | Unit Count | 2.0 Count | ## Product Details - **Brand:** Harrison Labs - **Cable Type:** Coaxial - **Compatible Devices:** Amplifier, Receiver, Audio Components with RCA Inputs - **Connector Type:** 3-pin Xlr and Rca - **Special Feature:** High Speed ## Images ![Harrison Labs FMOD Inline Crossover Pair 70 Hz High Pass RCA - Image 1](https://m.media-amazon.com/images/I/6175ICTREqL.jpg) ![Harrison Labs FMOD Inline Crossover Pair 70 Hz High Pass RCA - Image 2](https://m.media-amazon.com/images/I/81wsZJE4xDL.jpg) ![Harrison Labs FMOD Inline Crossover Pair 70 Hz High Pass RCA - Image 3](https://m.media-amazon.com/images/I/81edM6EIkcL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works perfectly to integrate subwoofer and bookshelves *by J***Y on February 4, 2022* If anyone is wondering these work really well to integrate a subwoofer into a system if you have extra pre-outs. My amp is a nuforce sta200 and has high gain so the integrated high pass filter on the kef kc62 had a hiss sound when the music was not playing so I changed to these instead and works like a charm. My system: source is raspberry pi4 running moode audio player connected via usb to Denafrips Ares II connected via rca to Schitt Saga + (tube buffer turned on) connected via one preout rca to Kef kc62 subwoofer, the second preout rca cables to FMOD 70hx high pass filters connected directly to Nuforce STA200 amp driving Kef LS50s. For my room the Kef kc62crossover is just a click above 70hz and integrates nicely with the LS50s. ### ⭐⭐⭐⭐⭐ Amp or subwoofer lacking a hi-pass filter? Get these. *by K***R on March 10, 2023* Using these between my Emotiva pre-amp and amplifier to filter out the lower frequencies to my KEF Q100 bookshelfs. They work flawlessly and haven’t heard any difference in sound quality, if anything it’s simply improved by the speakers not pushing out messy bass notes they can’t reproduce well, and leaving that task up to my SVS subwoofer which i have crossing over at 80hz (per manufacturer’s recommendations). ### ⭐⭐⭐⭐⭐ Important accessories to my subwoofer. *by J***O on February 18, 2026* Good product, what I need for my sound system. ## Frequently Bought Together - Harrison Labs FMOD Inline Crossover Pair 70 Hz High Pass RCA - FMOD Crossover Pair 100 Hz High Pass --- ## 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.ec/products/12344369-harrison-labs-fmod-inline-crossover-pair-70-hz-high-pass](https://www.desertcart.ec/products/12344369-harrison-labs-fmod-inline-crossover-pair-70-hz-high-pass) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-06-16*