--- product_id: 831320353 title: "Nero XMAX11 Class A/B 11-Ch Home Theater Amplifier, 3X 310W + 8X 135W, 2X Toroidal Transformers, XLR/RCA Inputs" brand: "osd audio" price: "HK$38317" currency: HKD in_stock: true reviews_count: 5 category: "Osd Audio" url: https://www.desertcart.hk/products/831320353-nero-xmax11-class-a-b-11-ch-home-theater-amplifier store_origin: HK region: Hong Kong --- # 3x310W + 8x135W power output 5Hz-50kHz ultra-wide frequency response 2x 2.3KVA toroidal transformers Nero XMAX11 Class A/B 11-Ch Home Theater Amplifier, 3X 310W + 8X 135W, 2X Toroidal Transformers, XLR/RCA Inputs **Brand:** osd audio **Price:** HK$38317 **Availability:** ✅ In Stock ## Summary > 🎬 Power your home theater like the pros — hear every detail, feel every moment. ## Quick Answers - **What is this?** Nero XMAX11 Class A/B 11-Ch Home Theater Amplifier, 3X 310W + 8X 135W, 2X Toroidal Transformers, XLR/RCA Inputs by osd audio - **How much does it cost?** HK$38317 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/831320353-nero-xmax11-class-a-b-11-ch-home-theater-amplifier) ## Best For - osd audio enthusiasts ## Why This Product - Trusted osd audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **5-Year Peace of Mind:** Comprehensive warranty guarantees long-term reliability for your high-end home theater investment. - • **Massive Power Reserves:** Delivers reference-level 310W & 135W per channel with <1% distortion for crystal-clear sound. - • **Audiophile-Grade Class AB:** Powered by dual 2.3KVA toroidal transformers and a robust capacitor bank for dynamic, clean amplification. - • **Consistent Sonic Signature:** Identical components across all 11 channels ensure flawless timbre matching and zero coloration. - • **Immersive Dolby Atmos Ready:** Optimized to drive immersive 3D soundscapes with your Dolby Atmos/DTS:X processor handling decoding. ## Overview The OSD Audio Nero XMAX11 is an 11-channel Class A/B home theater amplifier delivering 3x310W and 8x135W into 4 ohms with less than 1% distortion. Equipped with dual 2.3KVA toroidal transformers and a massive capacitor bank, it offers audiophile-grade clean power and a wide 5Hz-50kHz frequency response. Designed for reference-level home theaters, it ensures identical sonic performance across all channels, perfectly complementing Dolby Atmos and DTS:X immersive audio formats. Backed by a 5-year warranty, it’s engineered for long-lasting, high-fidelity cinematic sound. ## Description The only purpose of a home theater amplifier is to provide sufficient gain to achieve the desired sound levels without adding anything else, such as distortion or coloration. For reference-level home theaters, the level is based on what is achieved in commercial theaters. Commercial theaters have standards that are agreed by the industry and the movie producers, directors, the sound guys and the special effects teams. They all know what these levels are and ‘design’ the sound of the movie with these levels in mind. To replicate the soundtrack of a movie, as the creators intended, requires that reference home theaters can achieve the same levels of power with very low distortion and matching timbre across all channels. The XMAX11 can do this Power is the most critical part of the design. The amp must be able to power the speakers to the reference levels the creators expect – in the home theater world this is 108dB for the screen speakers and 105dB for the other speakers. With 310 watts for the screen speakers and 135 for the others, these SPL levels are easily achievable without distortion. Identical timbre and minimum coloration is achieved because each channel of the 11-channel XMAX11 has identical components, capacitors, power supplies, transistors, etc. This ensures that each speaker gets exactly the same sonic signature. This is necessary for a cohesive and immersive experience. Review: Repeated channel shutdown made this amp unusable for me - I tried the OSD Nero XMAX-11 for about a week in my home theater (11 channels, external processor, multiple subs), using RCA connections. My unit had a serious problem: the AMP 8/9 module repeatedly shut down during movie playback, especially during dynamic scenes — even at moderate levels (around –10 dB on a Denon X3800H). Once it shut down, the channel stayed dead until the amp was fully power-cycled, which strongly suggests a protection fault. I swapped speakers, inputs, and wiring, and the problem always stayed with the same amp module. All other channels worked normally. In practice, this made the amp unusable in a multi-channel system. A few other notes: -The front display backlight is always on. You can turn off the meter, but the backlight stays lit, which is distracting in a dark room. -Customer service responded, but replies took several days. -desertcart’s return was easy, though shipping a very heavy amp back wasn’t fun. On paper this amp looks like a good value, but reliability matters more than specs. I ultimately returned it and went with a Monolith 11X that has been completely stable. Bottom line: Based on my experience with repeated channel shutdowns, I wouldn’t trust this amp in a serious home theater. Review: Good performance amplifier - Super great sound. My home theater sounds more clear you can hear the voice perfectly as if you are inside a big cinema ## Features - Massive Power Reserves for Any Speaker Load – The XMAX11 delivers 3 x 310W and 8 x 135W into 4 ohms, all channels driven, with less than 1% distortion, ensuring high-fidelity audio at reference-level volumes - True Audiophile-Grade Class AB Performance – Powered by a 2.3KVA toroidal transformer and a massive capacitor bank (3 x 4000uF + 8 x 2000uF), this amplifier provides clean, dynamic, and effortless power, even for the most demanding speakers - Wideband Frequency Response for Ultimate Clarity – Covering 5Hz to 50kHz, the XMAX11 ensures accurate and detailed sound reproduction, capturing everything from subsonic bass effects to crystal-clear high frequencies exactly as intended by the filmmakers - Optimized for Dolby Atmos and Immersive Audio Formats: The XMAX11 delivers the power, while your processor handles Dolby Atmos and DTS:X decoding, ensuring lifelike overhead effects and a fully immersive soundstage with clean, dynamic amplification - 5-Year Warranty: Comprehensive 5-year warranty ensures long-term reliability and peace of mind for your investment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DXHFVM33 | | Brand | OSD Audio | | Customer Reviews | 4.6 out of 5 stars 64 Reviews | | Included Components | Quick Start Guide | | Item Dimensions D x W x H | 43.4D x 44.7W x 18.4H centimetres | | Manufacturer | OSD Audio | | Manufacturer Part Number | NERO-XMAX11 | | Maximum Frequency | 50 KHz | | Minimum Frequency | 5 Hz | | Model Number | NERO-XMAX11 | | Mounting Type | Tabletop | | Mounting type | Tabletop | | Number of Items | 1 | | Number of items | 1 | | Power Source | Corded Electric | | Power source | Corded Electric | | Product dimensions | 43.4D x 44.7W x 18.4H centimetres | | Specification Met | CE | | Specification met | CE | | UPC | 810074881999 | | Unit Count | 11.0 count | ## Product Details - **Brand:** OSD Audio - **Mounting type:** Tabletop - **Power source:** Corded Electric - **Product dimensions:** 43.4D x 44.7W x 18.4H centimetres - **Specification met:** CE ## Images ![Nero XMAX11 Class A/B 11-Ch Home Theater Amplifier, 3X 310W + 8X 135W, 2X Toroidal Transformers, XLR/RCA Inputs - Image 1](https://m.media-amazon.com/images/I/81MFJfdWkbL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐ Repeated channel shutdown made this amp unusable for me *by H***R on 28 January 2026* I tried the OSD Nero XMAX-11 for about a week in my home theater (11 channels, external processor, multiple subs), using RCA connections. My unit had a serious problem: the AMP 8/9 module repeatedly shut down during movie playback, especially during dynamic scenes — even at moderate levels (around –10 dB on a Denon X3800H). Once it shut down, the channel stayed dead until the amp was fully power-cycled, which strongly suggests a protection fault. I swapped speakers, inputs, and wiring, and the problem always stayed with the same amp module. All other channels worked normally. In practice, this made the amp unusable in a multi-channel system. A few other notes: -The front display backlight is always on. You can turn off the meter, but the backlight stays lit, which is distracting in a dark room. -Customer service responded, but replies took several days. -Amazon’s return was easy, though shipping a very heavy amp back wasn’t fun. On paper this amp looks like a good value, but reliability matters more than specs. I ultimately returned it and went with a Monolith 11X that has been completely stable. Bottom line: Based on my experience with repeated channel shutdowns, I wouldn’t trust this amp in a serious home theater. ### ⭐⭐⭐⭐⭐ Good performance amplifier *by S***D on 18 August 2026* Super great sound. My home theater sounds more clear you can hear the voice perfectly as if you are inside a big cinema ### ⭐⭐⭐⭐⭐ An absolute MONSTER!! *by R***C on 25 September 2024* HTA5200. Class A/B, no-frills, monster among beasts. It looks menacing in the best way. Using 4 of its 5 Amplifiers to power 4 of the beautiful Klipsch RF7-II Tower's (8ohm 250w Continous). I mainly listen to very busy, intense, high bitrate music w/ deep and unrelenting subsonic bass. The OSD Nero HTA5200 is up for the task. It'll easily handle the less demanding cinema signals. All of the connections are robust and feel very firm. Trying RCA and XLR to compare and because I'm an idiot and two of my patch cables are too short. Can't tell any difference in quality. If there was a problem with noise introduction or distortion, I'd know. It would be very obvious when connected to the Klipsch towers because they are so sensitive/efficient. 101db @ 1m / 1w. ## Frequently Bought Together - OSD Nero XMAX11 Class A/B 11-Ch Home Theater Amplifier, 3X 310W + 8X 135W, 2X Toroidal Transformers, XLR/RCA Inputs - FosPower Banana Plugs 12 Pairs / 24 pcs, Closed Screw 24K Gold Plated Speaker Plug Connectors for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black --- ## 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.hk/products/831320353-nero-xmax11-class-a-b-11-ch-home-theater-amplifier](https://www.desertcart.hk/products/831320353-nero-xmax11-class-a-b-11-ch-home-theater-amplifier) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-10-05*