--- product_id: 92908326 title: "2 x in, 3 x Out Digital Signal Processor Extension Board for DSP" price: "125 zł" currency: PLN in_stock: true reviews_count: 2 url: https://www.desertcart.pl/products/92908326-2-x-in-3-x-out-digital-signal-processor-extension store_origin: PL region: Poland --- # 2 RCA inputs & 3 RCA outputs Molex Micro-Fit input/output Fully programmable DSP kernel 2 x in, 3 x Out Digital Signal Processor Extension Board for DSP **Price:** 125 zł **Availability:** ✅ In Stock ## Summary > 🎛️ Elevate your sound game with pro-level DSP control! ## Quick Answers - **What is this?** 2 x in, 3 x Out Digital Signal Processor Extension Board for DSP - **How much does it cost?** 125 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/92908326-2-x-in-3-x-out-digital-signal-processor-extension) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug-and-Play Ready:** Works flawlessly with ICP5 programmer for easy setup and standalone operation - • **Precision DSP Control:** Powered by a fully programmable DSP kernel for tailored sound shaping - • **Flexible Interface Options:** Includes AUX and Molex Micro-Fit ports for expanded compatibility - • **Pro-Grade DIY Audio Upgrade:** Trusted by audio designers for high-quality home audio subwoofer tuning - • **Seamless Multi-Channel Connectivity:** 2 RCA inputs and 3 RCA outputs for versatile audio routing ## Overview This 2-in, 3-out Digital Signal Processor Extension Board by Sure Electronics offers professional-grade audio processing with multiple RCA, AUX, and Molex Micro-Fit connections. Powered by a fully programmable DSP kernel, it enables precise sound customization for home audio and DIY projects. Compatible with ICP5 programming tools, it delivers reliable, high-quality performance favored by audio enthusiasts and designers alike. ## Description Product description Description AA-AA11428 is the interface extension board specially designed to provide audio input and output interfaces for APM2. Taking customers’ common applications into consideration, APM3 works as a 2 x in, 3 x out extension board, suitable for audio 2.0 / 2.1 system. To maximumly satisfy different requirements of customers‘ projects, APM3 provides multiple kinds of interfaces, including 2 x RCA jacks, 1 x 3.5mm AUX IN jack, 2 x PH-4Pos connectors for audio input and 3 x RCA jacks, 1 x 3.5mm AUX IN jack and 2 x PH-4Pos connectors for audio output. Features 2 x 2 inches(50 x 50 mm) Compact PCB Size 2 RCA input, 3 RCA output 1 AUX input, 1 AUX output 1 PH-4PIN-2MM input, 1 PH-4PIN-2MM output Powered by DSP kernel board Suitable for audio 2.1 system Easy for Installation and Integration As APM3 offers multiple interfaces for audio input and output, it’s easy and simple to integrate APM2 and APM3 to your audio systems through cables connection. In addition, APM3 is in 2’’ x 2’’ compact size, the same size as APM2, making them simple to be installed in any cabinet without occupation of too much space to leave enough headroom for other components. Package Include 1pc AA-AA11428, APM3 1pc PH-2mm-10Pos Cable, 5cm / 1.97’’ Screws Review: Just what I needed! 10/10! - I got all three boards, the dsp, the programmer and the i/o board. I am just using this one to do the dsp for my home audio sub. But it ended up being so good, I think I'm about to buy several more. For designers or diy type guys, this couldn't be better. Works perfectly as I was hoping it would. Fully programmable for however you need it. Programming was difficult, I'm not going to lie. Every single dip switch had to be set to the opposite of what the instructions and ai said it should be. Once I figured that out with a bunch of trial and error, then it was pretty much as the instructions said. But it took me a minute to figure that out first. Hopefully this info saves someone else a couple of hours. I wish I'd caught it earlier. The Miumax program from Wondom works very well and has MOST every setting you'll need. It is considerably easier than SigmaStudios. If you can get what you need done with this, I’d recommend doing that. Learning SigmaStudios was not an easy step. But it does give you a lot more control. Those are your two options to program this and they both worked 100% correctly for me. Once you flash it to the ICP5 (it says icp5, but it also seems to write the dsp board in this step) you can disconnect the icp5 and run the dsp and I/O board without the icp5. I really hope this helps out and gives anyone considering this the confidence to grab the 3 boards and go for it. Worked beautifully for my first project using this. !0/10 WOULD RECOMMEND! Going to buy two more this week. Review: Very good price / quality ratio. - Product as described. Very good quality. Fast shipping. ## Features - 2CKT RCA input, 3CKT RCA output - 1CKT AUX input, 1CKT AUX output - 1CKT molex Micro-Fit input, 1CKT molex - Micro-Fit output, - Powered by DSP kernel board ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #193,175 in Electronics ( See Top 100 in Electronics ) #2,798 in Home Theater Audio | | Customer Reviews | 5.0 out of 5 stars 7 Reviews | ## Images ![2 x in, 3 x Out Digital Signal Processor Extension Board for DSP - Image 1](https://m.media-amazon.com/images/I/71eYnQvNR3L.jpg) ![2 x in, 3 x Out Digital Signal Processor Extension Board for DSP - Image 2](https://m.media-amazon.com/images/I/71FllyPjS-L.jpg) ![2 x in, 3 x Out Digital Signal Processor Extension Board for DSP - Image 3](https://m.media-amazon.com/images/I/71dcV2iRykL.jpg) ![2 x in, 3 x Out Digital Signal Processor Extension Board for DSP - Image 4](https://m.media-amazon.com/images/I/71xTkOe4f5L.jpg) ![2 x in, 3 x Out Digital Signal Processor Extension Board for DSP - Image 5](https://m.media-amazon.com/images/I/71r2axil9jL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Just what I needed! 10/10! *by A***R on October 7, 2025* I got all three boards, the dsp, the programmer and the i/o board. I am just using this one to do the dsp for my home audio sub. But it ended up being so good, I think I'm about to buy several more. For designers or diy type guys, this couldn't be better. Works perfectly as I was hoping it would. Fully programmable for however you need it. Programming was difficult, I'm not going to lie. Every single dip switch had to be set to the opposite of what the instructions and ai said it should be. Once I figured that out with a bunch of trial and error, then it was pretty much as the instructions said. But it took me a minute to figure that out first. Hopefully this info saves someone else a couple of hours. I wish I'd caught it earlier. The Miumax program from Wondom works very well and has MOST every setting you'll need. It is considerably easier than SigmaStudios. If you can get what you need done with this, I’d recommend doing that. Learning SigmaStudios was not an easy step. But it does give you a lot more control. Those are your two options to program this and they both worked 100% correctly for me. Once you flash it to the ICP5 (it says icp5, but it also seems to write the dsp board in this step) you can disconnect the icp5 and run the dsp and I/O board without the icp5. I really hope this helps out and gives anyone considering this the confidence to grab the 3 boards and go for it. Worked beautifully for my first project using this. !0/10 WOULD RECOMMEND! Going to buy two more this week. ### ⭐⭐⭐⭐⭐ Very good price / quality ratio. *by Z***U on July 7, 2019* Product as described. Very good quality. Fast shipping. ## Frequently Bought Together - 2 x in, 3 x Out Digital Signal Processor Extension Board for DSP - 2 in 4 Out Audio Digital Signal Processor DSP Kernal Board - ADAU1701 Supports Adjusting Gain EQ Crossover and Time Alignment --- ## 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.pl/products/92908326-2-x-in-3-x-out-digital-signal-processor-extension](https://www.desertcart.pl/products/92908326-2-x-in-3-x-out-digital-signal-processor-extension) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-23*