class d amplifier

  1. H

    Cherry class D amplifier by Digital Amplifier Company looking to repair

    I have a 5-CHerry amplifier made by the Digital Amplifier Company that no longer powers up. The owner of the company Tommy O’Brien unfortunately passed away several years ago so I’m looking for someone who may know how to service one of these class D amplifiers. I’ve attached a few pictures to...
  2. C

    REL High level input with class D The unsolved mysteries

    Hello. I´m a little bit nervious because after reading all of you after one year finally I´ve decided to write here. I´m not new in the audio hobby, but sometimes you get stuck and you need de knowledge from the very experienced friends. Until today I was using my REL sub with he high level...
  3. W

    How does this simple class d amp for car work?

    Hi, Attached is a class D amplifier for car use I found on the net. The circuit looks very compact and I would like to build it just for fun and get to learn class D. The amp directly converts the battery voltage into amplified audio using an inverter kind of mechanism, I know its not a perfect...
  4. O

    The most repeated question but "the times they are a' changing"

    I own PA amplification for events in small to medium sized venues. I have always disliked the sound of class D amplification and cringe at the very thought of it, however, lately I've heard more of how a well made class D amp can sound nicer than A/B or even a class A. Looking online I found a...
  5. R

    Components on a Class D amp board

    I recently purchased two Douk A5 amps, based partly on Amir's positive review. I love them - they do exactly what I need. I understand the basics of how a class D amp works using a comparator, pulse width modulation, and a low-pass filter before sending the signal to the speakers. However I...
  6. A

    Class D Amplifiers Explained: Complete Beginner’s Guide

    For the lovers of class D amplifiers like me and also the beginners who don't know what Class D amplifiers this article is for you.it breaks down class D amplifiers to help you understand them in-depth.
  7. pma

    SMSL A100 class D amplifier test

    SMSL A100 amplifier review This test review was performed to comply with FTC: 16 CFR Part 432 (July 5, 2024) - Power Output Claims for Amplifiers Utilized in Home Entertainment Products The SMSL A100 is a small, affordable, 2-channel Class D amplifier. It embeds an Infeon MA-12070 amplifier...
  8. S

    Nominally Fixed Frequency Ripple Reduced Class D Amplifier

    This is DIY but may live elsewhere and I need to work on the title to get a nicer Acronym. I've been dreaming about for this for some time and having gone through various iterations of ideas that ultimately failed I ended up with this one. Your caveat is that it is a Spice Model without the...
  9. O

    Class D Amp Module Replacement

    Hi all, I have a Bel Canto S300 with one module that is out of commission. I was going to try a warranty fix but then I see how simple the replacement would be to do myself. My 1st thought was to replace both modules with new ones from parts-express. This is the closest match I could find...
  10. Abstracted

    Anyone try out one of these TP3255 monoblocks?

    Looks like it's made by YJ Co.?: https://www.aliexpress.us/item/3256805957817839.html Product description: Product name: 600W TPA3255 Power Amplifier Max Power Output:600W @2Ω Audio input: RCA, AUX 3.5MM SNR: 110dB Speaker Impedance: 2-8Ω THD:0.02% Power Amp Chip: TPA3255 Input Range: DC...
  11. A

    How class D amplifier may react to headphone

    Hopefully this post is helpful/interesting to others and not just myself. I have recently purchased an SMSL A300. It suits my needs quite well, but I am hoping to extend it's functionality. Years ago I had a speaker tap cable made so that I could drive headphones directly from the speaker...
  12. daniboun

    "Bamboo Project" : Dual Mono 3E Audio 480-1-29A Amplifier

    Hi amigos, Following the ASR review of the 3E Audio 480-1-29A Module, I decided to roll up my sleeves and show you that with a little elbow grease, you can create a very beautiful amplifier based on these nice 3E Audio modules. I called this project, "Bamboo"> the pictures will speak for...
  13. SimonS

    Looking for future Stereo Amplifier and Streamer for my B&W 804s (8 Ohm) & Turntable Thorens TD2001

    Hi, I'm new to this forum, so have mercy with me and please forgive any unqualified or imprecise statements. After trying a NAD C399 on my fairly old HIFI system with a pair of B&W 804S (CD-player (Technics PG5), turntable Thorens TD2001) I was quite impressed by Class D performance. However, I...
  14. S

    anyone ever use pro audio devices in HiFi before?

    for context , I have all of my hifi equipment in a 19" 27u av network rack and it looks sharp. im having a pioneer rt-707 in the shop and a 19" 4u pc for the clarette im building soon as a server for my dac. here is a 7" reel of tape I digitized on Logic Pro and remastered and its on Bandcamp...
  15. sound67

    Impressions: Budget All-in-One LOXJIE A30 Integrated/Headphone Amplifier

    After successfully implementing the tube-hybrid mini amplifiers Aiyima T9 and T9 Pro (and an unsuccessful test with the Nobsound B100), I was curious to give a tube-less mini amplifier a try, and my choice is the Loxjie A30, which qualifies as an all-in-one budget solution with enough inputs...
  16. Simfunk

    KingRex T20u amp+DAC measurements or other experiences?

    About 12 years ago I bought two KingRex T20u amps for 270 € each in Germany. I liked the size and the simplicity of this amp, and it had exactly the features that I needed. Now that I have discovered ASR I would be interested how the Kingrex performs in terms of measurements. As this product is...
  17. C

    Primare A35.8

    Hello All, I read a lot of passionate exchanges about class D amplifiers. For the multichannel, we talk a lot about Nord, Appollon, ... we even have McIntosh that released one. For my part, I have a Primare stereo amp that I like a lot. I was wondering what you think about their 8 channels...
  18. S

    Will Audiophonics HPA S400ET be an improvement over Topping PA5 for speakers that can take 400 watts @4 ohms

    Grateful for thoughts, especially if anyone uses Topping PA5 with speakers that take more power, rather than in a nearfield setup. My speakers are Arundal 1723 Monitor THX (advised as 400 watts RMS @4ohms). I bought a Topping PA5 to experiment (thanks to ASR) and now using more often than my...
  19. V

    Class D amp recommendation

    Hi all! Was hoping to borrow some of your expertise and wisdom. I plan to order a Polk Audio Atrium 8 SDI speaker for outdoors. I plan on using it as a dual (single stereo speaker). https://www.polkaudio.com/en-us/product/outdoor-speakers/atrium8-sdi From what I understand this will use...
  20. O

    Sound characteristics of Purifi based amps?

    Hi guys, I’ve seen a lot of talk on here about all the different amps that are using Purifi modules. I’m well aware that on this site many people love to talk about measurements and I enjoy learning about that, but I have not seen anyone talk about how these amps sound. Would love to hear some...
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