--- product_id: 658148460 title: "A70 Mono Power Amplifier with PFFB TPA3255 Mini Class D Amplifier with Subwoofer HiFi Home Theater Receiver with RCA/XLR/Trigger Input for Shelf Passive Speaker" brand: "aiyima" price: "NT$11135" currency: TWD in_stock: true reviews_count: 5 category: "Aiyima" url: https://www.desertcart.tw/products/658148460-a70-mono-power-amplifier-with-pffb-tpa3255-mini-class-d store_origin: TW region: Taiwan --- # 116dB signal-to-noise ratio 300W @ 4Ω power output 0.001% ultra-low distortion A70 Mono Power Amplifier with PFFB TPA3255 Mini Class D Amplifier with Subwoofer HiFi Home Theater Receiver with RCA/XLR/Trigger Input for Shelf Passive Speaker **Brand:** aiyima **Price:** NT$11135 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game — because your speakers deserve the best! ## Quick Answers - **What is this?** A70 Mono Power Amplifier with PFFB TPA3255 Mini Class D Amplifier with Subwoofer HiFi Home Theater Receiver with RCA/XLR/Trigger Input for Shelf Passive Speaker by aiyima - **How much does it cost?** NT$11135 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/658148460-a70-mono-power-amplifier-with-pffb-tpa3255-mini-class-d) ## Best For - aiyima enthusiasts ## Why This Product - Trusted aiyima brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerhouse Precision:** Delivers a robust 300W output at 4Ω with crystal-clear sound fidelity. - • **Versatile Connectivity:** Supports RCA, XLR, and 12V trigger inputs for seamless integration with any HiFi setup. - • **Advanced PFFB Circuitry:** Post-filter feedback tech minimizes distortion and enhances frequency response for immersive sound. - • **Customizable Soundstage:** Selectable full-range or subwoofer output modes to tailor your home theater or stereo experience. - • **Audiophile-Grade Components:** Equipped with premium Japanese Rubycon and German WIMA capacitors for pristine audio clarity. ## Overview The AIYIMA A70 Mono Power Amplifier harnesses TI's TPA3255 Class D chip and premium capacitors to deliver up to 300W of clean, distortion-free power. With ultra-low 0.001% THD and a 116dB SNR, it supports multiple inputs including RCA, XLR, and 12V triggers, making it the perfect compact powerhouse for HiFi enthusiasts seeking customizable, high-fidelity home theater or stereo setups. ## Description Chipset: TPA3255+NE5532 Replaceable op amplifier chips: RT3609SM, OPA2604, OPA2134, LM4562, JRC5532, OP275GSZ, OPA1612, etc. Distortion: 0.001% SNR: ≥116dB Sinad: 96 dB. Frequency Response: 20Hz-20KHz (±0.5dB) RCA input sensitivity: low gain 2 Vrms (26 dB)/high gain 1 Vrms (32 dB) XLR input sensitivity: 4 Vrms (19 dB) Speaker impedance: 2-8Ω Maximum output power: 300W (@4Ω) 48V5A Input mode: RCA+XLR Supported Devices: decoder, valve preamp, computer, CD, mobile phone, MP3, etc. SUB Output Sensitivity: 2V Output mode: 1.0 passive speaker/0.1 subwoofer + active bass pass Working power supply: 24-48V Package includes: A70 mono amplifier*1 48V5A power supply*1 Review: 恐るべき可能性 - オペアンプを換装したら大化けのアンプになった。 Review: Tolle kleine Mono-Endstufe mit gutem Klang - Tolle kleine Mono-Endstufe. Verwende zwei davon seit gut 1 1/2 Jahren zusammen mit einem WiiM Ultra im Wohnzimmer als kompakte Stereoanlage. Das ist eine für mich super passende Kombination, die viel besser klingt als der Stereovollverstärker zuvor. Gepaart mit einem Plattenspieler und zwei soliden Standlautsprechern ergibt sich ein kompaktes, gut klingendes Hifi-Setup. ## Features - HIGH QUALITY COMPONENTS: Class D AIYIMA A70 mini monobloc mono amplifier is equipped with Japanese Rubycon 63V 3300uf filter capacitors, ELNA audio capacitors, German WIMA capacitors and professional high-power single-mode inductors, which reduce the distortion rate to 0.001%, the signal-to-noise ratio to 116dB and ensure a High-power high-power high-power - HIGH PERFORMANCE AMPLIFIER: A70 Mono is designed for HiFi enthusiasts, with rated power up to 300W @ 4Ω with 10% distortion. The A70 Mono is designed to add 6dB gain to RCA input jacks and active subwoofer output jacks (selectable from 40 to 200Hz), with dual-mode switching output full-range/passive subwoofer to meet your needs for channels 2.0/2.1/5.1/7.1 and other different scenarios - 【Multi-Input Interface Compatibility】Support a variety of audio inputs, including RCA and XLR inputs, while supporting 12V trigger inputs, one-key synchronization device operation, simple and efficient, can be matched to suit a variety of audio equipment. - PFFB Circuit Design: The A70 Mono uses PFFB (post-filter feedback) technology to effectively overcome the common load dependence problem of Class D amplifiers, improve distortion, improve frequency response, and thus greatly improve the sound quality and performance. - Utilizes TI's TPA3255 High Performance Class D Power Amplifier Chip, features an advanced integrated feedback design and error correction of proprietary high speed gate driver (PurePath Ultra-HD). Offers excellent audio performance by realizing high power outputs; Total output power 600W mono in 2Ω at 10% THD+N in PBTL configuration, total output power 480W mono in 2Ω at 1% THD+N in PBTL configuration ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DFM7DNVN | | Best Sellers Rank | #177,664 in Electronics ( See Top 100 in Electronics ) #578 in Home Audio Amplifiers | | Brand | AIYIMA | | Built-In Media | A70*1 mono implifier, 48V 5A power supply*1 | | Customer Reviews | 4.3 out of 5 stars 83 Reviews | | Item Weight | 907 g | | Manufacturer | AIYIMA | | Mfr Part Number | A70 MONO | | Model Number | B2D3232B | | Number of Items | 1 | ## Images ![A70 Mono Power Amplifier with PFFB TPA3255 Mini Class D Amplifier with Subwoofer HiFi Home Theater Receiver with RCA/XLR/Trigger Input for Shelf Passive Speaker - Image 1](https://m.media-amazon.com/images/I/41RzChCpZoL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 恐るべき可能性 *by 飯***子 on 4 March 2026* オペアンプを換装したら大化けのアンプになった。 ### ⭐⭐⭐⭐⭐ Tolle kleine Mono-Endstufe mit gutem Klang *by A***E on 21 July 2026* Tolle kleine Mono-Endstufe. Verwende zwei davon seit gut 1 1/2 Jahren zusammen mit einem WiiM Ultra im Wohnzimmer als kompakte Stereoanlage. Das ist eine für mich super passende Kombination, die viel besser klingt als der Stereovollverstärker zuvor. Gepaart mit einem Plattenspieler und zwei soliden Standlautsprechern ergibt sich ein kompaktes, gut klingendes Hifi-Setup. ### ⭐⭐⭐⭐⭐ Excellent amplifier. Meets or exceeds marketing statistics and has cool features! *by N***S on 10 October 2024* Electronics engineer's review will be coming soon (tm) As a consumer, the A70 just works. It is a great amplifier with some really cool features I never knew I needed. As far as I can tell, it meets or exceeds all its specifications for TDP, power output etc. I will be evaluating this in more detail under different loads at a future date so for now I will cover more of the cool features: 1. XLR is a nice to have. I don't personally have any in my setup but occasionally I have used it for odd or specific setups. 2. The +6db is REALLY nice. Some audio sources are really quiet. The worst offender is an LG TV that automatically drops the volume every 30 minutes if you set it above a certain level in the UI. The trouble is, the TV doesn't actually know how loud the room is so this may be going from a comfortable volume to nearly silent. The +6db allows you to get the full range out if this amp with such sources. 3. The built in crossover is cool. Not used as I have a full equalizer for room calibration but I can think of times it would be useful. 4. The 12V trigger is awesome! I cannot wait to build a custom controller for this that allows it to be switched on and off with the rest of my setup to allow for energy savings. I really only have two gripes: 1. AIYIMA already has a product with the name "A70" which could be confusing. They also advertise this as being used for 7.1 surround setups, but having 8 of this seems like it would require excessive tinkering to get a room to sound good compared to an all-in-one receiver that is programmable. ## Frequently Bought Together - AIYIMA A70 Mono Amplifier with PFFB Home Audio Receiver,TPA3255 Class D Amp with Subwoofer for Home Theater Bookshelf Speaker,with XLR & RCA Inputs & Trigger Input - AIYIMA DC48V 10A GaN Power Supply Adapter for TPA3255 Stereo Class D Amplifier A07 & A07 MAX & A08 PRO & A70 --- ## 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.tw/products/658148460-a70-mono-power-amplifier-with-pffb-tpa3255-mini-class-d](https://www.desertcart.tw/products/658148460-a70-mono-power-amplifier-with-pffb-tpa3255-mini-class-d) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-08-18*