--- product_id: 2313879 title: "SA25 25W Subwoofer Plate Amplifier" price: "€ 107.13" currency: EUR in_stock: true reviews_count: 12 url: https://www.desertcart.it/products/2313879-sa25-25w-subwoofer-plate-amplifier store_origin: IT region: Italy --- # 25W RMS power output Line & speaker-level inputs Adjustable low-pass crossover 60-180Hz SA25 25W Subwoofer Plate Amplifier **Price:** € 107.13 **Availability:** ✅ In Stock ## Summary > 🎵 Power your bass, own the room. ## Quick Answers - **What is this?** SA25 25W Subwoofer Plate Amplifier - **How much does it cost?** € 107.13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/2313879-sa25-25w-subwoofer-plate-amplifier) ## 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 - • **Compact Powerhouse:** Delivers a true 25 watts RMS to energize your small subwoofer setup with precision. - • **Effortless Upgrade:** Transforms passive subwoofers into active bass beasts without complicated installation or modifications. - • **Seamless Integration:** Supports both line-level and speaker-level inputs, making it compatible with virtually any audio system. - • **Tailored Bass Control:** Variable 2nd order low-pass crossover lets you fine-tune bass frequencies from 60 to 180 Hz for perfect room acoustics. - • **Thump-Free Experience:** Built-in speaker relay eliminates annoying turn-on thumps, ensuring smooth, professional sound transitions. ## Overview The SA25 25W Subwoofer Plate Amplifier is a compact, versatile amplifier delivering 25 watts RMS power optimized for small subwoofer systems. Featuring adjustable low-pass crossover controls (60-180 Hz) and dual input options (line and speaker-level), it ensures seamless compatibility and precise bass tuning. Its speaker relay prevents turn-on thumps, providing a smooth audio experience. Ideal for upgrading passive subwoofers into active units, this amplifier is perfect for enhancing home theater sound in small to medium rooms. ## Description This ultra-compact 25-watt subwoofer amplifier offers the perfect amount of power for any small subwoofer system. It delivers a real 25 watts RMS of power. Review: This is a great product, that work as indicated - This product was easy to setup. I decided that I did not want to cut a opening on the side of my sub-woofer for the Dayton Amplifier face-plate, so I went to Home Depot and found a hard plastic box type container that was very close to the dimensions of the Dayton Amp and mounted the face-plate to it with screws. Secondly, I drilled a hole on the side of the plastic box to run the wiring out from the Dayton Amp to my sub-woofer. Thirdly, I ran the sub-woofer wiring from my home theater system amplifier to the connections on the front of Dayton Amp and connected the sub-woofer wiring to the wiring connections on the back Dayton Amp with the wiring coming out the hole I had drilled. Finally, I turned on my home theater system, and the Dayton Amp. I now have deep bass sound that I can adjust. My home theater system sounds so much better! Review: Dayton Audio SA25 25W Subwoofer Amplifier - This is a nine compact unit that works well, but be aware of its limitations. The 25W rating if for a 4-0ohm speaker. Since many sub woofers are 8 ohm, it's real RMS will be half that value. Still, for a single small room it is fine.If you need more power for a larger space the Dayton SA70 (its bigger brother 0) will probably fit the bill. Again, be aware that for an 8-ohm speaker the RMS will be half the listed value. Plate amplifiers also need an enclosure. The unit can be connected to your amplifier by either a pin cable connected to a sub-woofer out or by routing the front speakers through the unit. I suspect that both connections are ideal. Unfortunately there is no manual accompanying , the unit. The company's response was that it was under revision and will appear on their web site.- maybe so- but after several week that is still not the case. All things considered, it is still a nice unit, keeping in mind, it's limitations. Recommended for converting a passive sub-wooffer into an active one.. ## Features - Line-level and speaker-level inputs for connection to any system - Variable 2nd order low-pass crossover from 60 Hz - 180 Hz - Speaker relay prevents turn-off thumps ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #151,111 in Electronics ( See Top 100 in Electronics ) #248 in Home Audio Subwoofers | | Customer Reviews | 4.0 out of 5 stars 104 Reviews | ## Images ![SA25 25W Subwoofer Plate Amplifier - Image 1](https://m.media-amazon.com/images/I/81X8xu5SGTL.jpg) ## Questions & Answers **Q: I can connect this to the subwoofer output of a Yamaha RX- V675 for a passive subwoofer 8 " http://www.amazon.com/CORPORATION-Product-TIC-TFS10-SL-** A: This is a powered amplifier, which you install in a passive subwoofer, to convert it to a powered subwoofer, if your amp has a low level output for a powered subwoofer, typically an audio jack. If your amp has R & L speaker connections for the subwoofer, they connect to a passive subwoofer. **Q: Can I use this to push coaxial speakers? Or does this only work with subwoofers because there's no cross over filters** A: It has a low frequency cut-off, so it will only act as a subwoofer amp. **Q: I've had this amp installed on a sub woofer. Decided to use it with a stereo amp using the speaker inputs/ outputs. No sound from the right output. ??** A: Sorry, I can't help you, I didn't hook mine up that way. I ran a single sub cord to the right channel of the low level input and it sounds great. **Q: What is the red and black wire called ?** A: Red = Positive. Black = Negative ## Customer Reviews ### ⭐⭐⭐⭐⭐ This is a great product, that work as indicated *by A***R on May 25, 2012* This product was easy to setup. I decided that I did not want to cut a opening on the side of my sub-woofer for the Dayton Amplifier face-plate, so I went to Home Depot and found a hard plastic box type container that was very close to the dimensions of the Dayton Amp and mounted the face-plate to it with screws. Secondly, I drilled a hole on the side of the plastic box to run the wiring out from the Dayton Amp to my sub-woofer. Thirdly, I ran the sub-woofer wiring from my home theater system amplifier to the connections on the front of Dayton Amp and connected the sub-woofer wiring to the wiring connections on the back Dayton Amp with the wiring coming out the hole I had drilled. Finally, I turned on my home theater system, and the Dayton Amp. I now have deep bass sound that I can adjust. My home theater system sounds so much better! ### ⭐⭐⭐⭐ Dayton Audio SA25 25W Subwoofer Amplifier *by S***G on April 8, 2013* This is a nine compact unit that works well, but be aware of its limitations. The 25W rating if for a 4-0ohm speaker. Since many sub woofers are 8 ohm, it's real RMS will be half that value. Still, for a single small room it is fine.If you need more power for a larger space the Dayton SA70 (its bigger brother 0) will probably fit the bill. Again, be aware that for an 8-ohm speaker the RMS will be half the listed value. Plate amplifiers also need an enclosure. The unit can be connected to your amplifier by either a pin cable connected to a sub-woofer out or by routing the front speakers through the unit. I suspect that both connections are ideal. Unfortunately there is no manual accompanying , the unit. The company's response was that it was under revision and will appear on their web site.- maybe so- but after several week that is still not the case. All things considered, it is still a nice unit, keeping in mind, it's limitations. Recommended for converting a passive sub-wooffer into an active one.. ### ⭐⭐⭐⭐⭐ Great Product, Does what it says to do, and with a Punch! *by C***E on November 9, 2013* I was a bit skeptical at first, as it rates 25W, but I wanted to use my old passive subwoofer with my Onkyo system and decided to give it a try as it was the only one I found to be of the proper size. I was very pleased when, after 15 minutes to instal irt on my old sub, I pluged it on my system and Poof! I came to life, adding what I wanted to my Home Theater Room, with a clear and loud punch! Works as a charm, easy to instal and inexpensive. I highly recomend it! And fear not, the 25Wlittle guy delivers, and strongly so! ## Frequently Bought Together - Dayton Audio SA25 25W Subwoofer Plate Amplifier - FosPower Banana Plugs 6 Pairs / 12 pcs, Closed Screw 24K Gold Plated Banana Speaker Plug Connectors for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems - Amazon Basics 16-Gauge Speaker Wire Cable, 100 feet, Bronze --- ## 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.it/products/2313879-sa25-25w-subwoofer-plate-amplifier](https://www.desertcart.it/products/2313879-sa25-25w-subwoofer-plate-amplifier) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-06-18*