class d

  1. daniboun

    "Bamboo V2" project. 3E Audio 260-2-29A Stéréo Rev. B (OPA1656) + PFC/LLC PSU. APx555 Measurements )

    Hi amigos, Before starting, I suspended the measurements of the first project "Micro Bamboo." I will come back to the quick measurements at the end of May finally, I still have to speak with Sami about his Micro Audio PSU... am focusing on this thread only on the measures of the "Bamboo V2"...
  2. P

    Mark Levinson No. 23.5 vs new Class D power amps?

    I saw a Mark Levinson No. 23.5 power amp for sale and read up on it, reviews of that time (decades ago) are super positive about the power, performance and capability of this power amp. I got to wondering how the newest (2023/2024) Class D amps that are smaller, less costly (some of them) and...
  3. daniboun

    "ASH-400 Project" Sylph Audio FB-100 Stereo Module with advanced PFFB

    Hi amigos, I'm coming back to the forefront with a new project. This time I focused on the Sylph Audio FB100 module, based on a TPA3251 and an advanced implementation of the PFFB. Voltage Gain is factory set @ 14dB (5V/V) on this module. So I intended to couple it to my DAC SMSL D6s which has...
  4. M

    Review of Anaview ALC0100-2300 amp module with integrated power supply

    This is a review and measurements of the Anaview ALC0100-2300 amp module. It is a compact design delivering 2x50W into 4 ohms with a built in power supply, and was on sale from 2010. It is still on sale for EUR121 per unit (https://www.lautsprechershop.de/hifi/anaview_uebersicht_en.htm). At...
  5. mjgraves

    JBL 705P Circuitry?

    As mentioned elsewhere I've just upgraded to a pair of JBL 705Ps. To feed them I've assembled PiCorePlayer on a Pi4 with a HifiBerry SPDIF HAT. This feeds the AES input nicely. So it's an all-digital signal path. Or is it? Does anyone here have an insight into the internals of the 70x series...
  6. daniboun

    "Micro Bamboo Project" : 3E Audio 260-2-29A Stereo amplifier + Micro-Audio PSU

    Hi Amigos ) As promised, I remain faithful to my Diyer position ) After my dual Mono project "Bamboo" I return to the scene with a new project "Micro Bamboo" to pay tribute to Micro Audio and its audiophile grade SMPS630-SO PSU. (46V/13A or 51V/11,5A) Now that we know the measurements of the 3E...
  7. O

    Apollon Purifi vs Hypex

    Hi all, quick question. I’m looking at two amps from Apollon. The Purifi 1ET7040SA DM Luc Dual Mono Amplifier and the Hypex NCx500 DM Lux Dual Mono Amplifier. The Purifi is power rating is 250/500/950 watts at 8/4/2 ohms. The Hypex power rating is 380/700/700 watts at 8/4/2 ohms. Do people...
  8. teched58

    New Year's 2024 Audiophile resolutions

    It's that time of year again! I've been thinking about what I'd like to do audio-wise in 2024 and was wondering what others in the ASR community are thinking about. Here are my three "resolutions": 1) Try some cheap schiiiit In 2024, I plan to finally take the low-cost plunge and get a Class...
  9. B

    A tube buffer that gives tube sound.

    Hi people! I'm getting slowly my way in audioland. Had some upgrades an finally got that sound I like (for now). Setup is a Tv, optical, Nuprime dac-9, Nuprime AMG STA, RU connected copper cables, B&W 683 S2, old Rel quake sub and a big diy acoustic panel on the sealing. I would like to...
  10. Matias

    Mola Mola Trajectum

    Mola Mola has been using NCore technology in the Kaluga amps for years, specifically a version of the NC1200. Since the Kula all-in-one integrated amp they have developed an update of their class D tech, which now they call Trajectum, and is also used in the standalone stereo power amp called...
  11. Brand-Newbie’n

    Polk & Pioneer Audio Advice - Class D Amp, Bi-Amping, Ohms

    Hi all, Newbie hear! Never had a stereo setup before (alway had portable speakers). Just bought my first stereo setup (below). My purchase was very cost/performance based. I.e - I am more interested in playing just music with with my receiver, but bought this 7.2 Pioneer receiver because it had...
  12. nawfal07

    Eversolo AMP-F2 Class D Power Amplifier (Coming Soon)

    Eversolo has teased a new product at the Shanghai International Smart Home Exhibition last week. It's a Class D power amplifier and if I can read it right the model name is AMP-F2. This will be the first amplifier from the company, which is a subsidiary of Zidoo. Their first few products...
  13. pma

    Wondom AA-AB31471 1 x 30 Watt Class D Amplifier Board Review and Measurements

    Wondom AA-AB31471 1 x 30 Watt Class D Amplifier Board Review 1. Intro I wanted to have a small audio system for my holiday trip, not to depend on usual TV set sound available at the hotels and pensions. As a speaker I would take my small JBL Control 1 Pro, so there was a question of the...
  14. Matias

    ICEpower Conductor

    New tech from ICEpower announced. The prototype is already around SINAD 102 (1kHz 5W into 4 ohms) with ~300W (1% THD+N of 1kHz into 4 ohms) and no rise around the knee. And with 6.67 kHz riding along with the 1 kHz, the old limitations of HCOM seem to have been solved...
  15. J

    Class D 2.0 integrated Amp with HDMI

    Folks, anyone know of a class D with an HDMI input? Something not from BluSound?
  16. Buckeye Amps

    Buckeye Amps: Hypex NCx500 Official Thread

    Hypex NCx500 specs: - 700w @ 2ohm (per channel, peak) - 700w @ 4ohm (per channel, peak) - 380w @ 8ohm (per channel, peak) You have a choice of two configurations (both at the same price): - The default configuration uses the onboard stock Hypex buffer stage, which renders our Low/Med/High...
  17. Matias

    Nord's new Value-Line Hypex NCore MP series

    Nord has released a new range of Hypex NCore MP series amps with great prices using more affordable cases. "Our new Value-Line range of lower priced amplifiers. Built to compete with the budget box shifters offering a no frill amplifier with the same sonic performance of our standard range...
  18. S

    First impressions after first dip into class D (2x Hypex Nilai 500 Mono)

    I had a bit of an experience in ordering and getting these amp kits assembled and working. The amp modules themselves seemed to have been damaged in shipping (vibration caused several caps legs to fatigue via vibration and break off). Hypex (and my retailer, Deer Creek) did a great job taking...
  19. Naja

    Question about class D

    So, I got a new class D amp (TPA3255) to replace my old AB amp, all in all I think it sounds much better than the AB amp, but I have one big gripe with it. I noticed this without listening for it, compared to the AB amp it makes music faster, like there is no space between one note and the...
  20. printerlights

    Is the SMSL AO200 a true "Digital Amplifier"? (or do the analog inputs bypass its built in dac?)

    I'm wondering if the analog inputs on the AO200 bypass its built in dac? All of the marketing material for the AO200 calls the unit a "Digital Amplifier," but that would imply that every signal going through the amp is converted to digital before amplification, is there a way to test if the...
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