--- product_id: 11431680 title: "Harrison Labs FMOD Inline Crossover Pair 50 Hz High Pass RCA" brand: "harrison labs" price: "₨24927" currency: LKR in_stock: true reviews_count: 8 category: "Harrison Labs" url: https://www.desertcart.lk/products/11431680-harrison-labs-fmod-inline-crossover-pair-50-hz-high-pass store_origin: LK region: Sri Lanka --- # Harrison Labs FMOD Inline Crossover Pair 50 Hz High Pass RCA **Brand:** harrison labs **Price:** ₨24927 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Harrison Labs FMOD Inline Crossover Pair 50 Hz High Pass RCA by harrison labs - **How much does it cost?** ₨24927 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/11431680-harrison-labs-fmod-inline-crossover-pair-50-hz-high-pass) ## Best For - harrison labs enthusiasts ## Why This Product - Trusted harrison labs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description What is an FMOD? The FMOD is an active crossover simulator. It is better than a much more expensive electronic crossover that requires power to operate. FMODs are packaged in pairs and can be combined with other FMODs to obtain bandpass ranges or with other types of crossovers to change the slope and crossover frequency point. FMODs feature a 12 dB per octave crossover slope and are compatible with all RCA type input amps...simply place the FMOD in-line with the patch cable running between the source (head unit) and the amplifier. 24kt gold over brass construction, 10 volts maximum RMS input. One-year manfacturer warranty. Made in the U.S.A. Review: Works well - Works well Review: Useful product - Used these to roll off the bottom end on a couple speakers that are rated to go down to 30 Hz, but which are too small to do so well. Solved the problem. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0006N41J2 | | Best Sellers Rank | #35 in Audio & Video Crossover Parts | | Customer Reviews | 4.0 4.0 out of 5 stars (25) | | Date First Available | October 31, 2012 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.44 ounces | | Manufacturer | Harrison Labs | | Package Dimensions | 4.65 x 3.35 x 0.39 inches | ## Images ![Harrison Labs FMOD Inline Crossover Pair 50 Hz High Pass RCA - Image 1](https://m.media-amazon.com/images/I/61jmF+-J1bL.jpg) ![Harrison Labs FMOD Inline Crossover Pair 50 Hz High Pass RCA - Image 2](https://m.media-amazon.com/images/I/81MHTXl5L2L.jpg) ![Harrison Labs FMOD Inline Crossover Pair 50 Hz High Pass RCA - Image 3](https://m.media-amazon.com/images/I/81edM6EIkcL.jpg) ## Questions & Answers **Q: Are these filter bi-directional......Either end can be input and/or output???** A: Haven't used these for a while, but I'm almost positive they are directional where the female is the input side and the male is the output side. I doubt very much that any damage would result by reversing the direction, but the either the signal would be cutoff or, more likely, the low-pass filter would be negated. **Q: The website says the high end rolls off around 1000 hz seem only for subs?** A: Go to Harrison labs site for best information. Red are more focused on filtering out Low hz starting at a target frequency and rolling off below it. **Q: Can I use these to limit the low freqencies out of my home subwoofer? Reduce or eliminate rumble?** A: I personally think the 30Hz would be too low. This same firm makes a product for just this purpose and it starts at 37Hz. I have the 50Hz's just for this purpose and they do great and still let some very low frequency information into my sub. If you purely want an infrasonic filter to keep your woofer cone from over extension, then these would be the ones but for sound quality improvement, I would personally go with the 50's. **Q: What is the result if you combine a 50hz hp filter with a 30hz hp filter?** A: Generally not recommended from a sonic standpoint, but the answer is that the filters would be compounded. Exactly how would be determined by the impedance characteristics of the filters vs. the amplifier. I'd expect what you'd get would be filter slope that would start rolling off at about 12db/oct near 50hz and then roughly double to 24db/oct near 30hz. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well *by M***L on February 24, 2026* Works well ### ⭐⭐⭐⭐ Useful product *by D***E on September 17, 2012* Used these to roll off the bottom end on a couple speakers that are rated to go down to 30 Hz, but which are too small to do so well. Solved the problem. ### ⭐⭐ Degradation of audio signal *by P***R on April 30, 2025* Degrades the signal too much. I created my own passive filter to block the low frequencies and they sounded better than these by far. ## Frequently Bought Together - Harrison Labs FMOD Inline Crossover Pair 50 Hz High Pass RCA - FMOD Crossover Pair 70 Hz Low Pass - 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.lk/products/11431680-harrison-labs-fmod-inline-crossover-pair-50-hz-high-pass](https://www.desertcart.lk/products/11431680-harrison-labs-fmod-inline-crossover-pair-50-hz-high-pass) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-05-06*