Hi there, Merry Christmas! Came into some Christmas money so am about to pull the trigger on one of these amps, but need a little advice first. I know that if cost were no object, the Purifi Eigentakt is an easy decision, but I'd really be stretching the budget to do so. Would I really be...
I'm interested in a Purifi-based custom build from VTV. If you are from Canada, do you have any experience with their products shipped to Canada.
On another note, if you are 'personally' using a new VTV Purifi-offering, how has your experience been with the product and customer service. I will...
I would like to open the thread dealing with important publications on class D amplifiers principles, topologies, characteristics and limitations. One of the great sources is the Hypex publications library at
The most explaining and...
I'm m looking for persons who have purchased the Purifi EVAL1 EIGENTAKT based systems and any build mods. I'm looking for a Canadian Supplier with track record. I live in Canada and have only found VTV so far.
I'm planning on using a VTV Purifi type amplifier as a front left and right Channel...
I am selling a nearly brand new Apollon Audio Purifi 1et400a Mini Stereo Amplifier. It was originally purchased in July 2021 and took two months to arrive to my doorstep in the US. A large portion of that was customs of course.
I think everyone here is pretty familiar with Apollon and Purifi...
SOLD SOLD SOLD SOLD SOLD
NO LONGER AVAILABLE
I am selling a Nord Three 1ET400A Dual Mono Stereo Amplifier.
The Nord Three SE 1ET400A Dual Mono Stereo Amp is a nicely built amplifier using the Purifi class D amplifier technology. It uses the Nord Rev D buffers with on board...
For sale is the powerhouse of Hypex nCore, the NC1200 stereo amp built by VTV in the USA. asking $1000. It’s has all the clean power you need for even the most demanding speakers.
400W @ 8ohm
700W @ 4ohm
1200W @ 2ohm
This has a 12v trigger option. This unit does NOT have the pin1 issue that you...
Actually I'm submitting this thread to use the wisdom of the crowd and hear the ideas about designing and building amplifiers based on Hypex/Purifi and possibly Pascal modules. For now, we are focusing on Hypex NC252MP to see how it will turn out. Afterwards we will work on nc1200...
New Purifi Buffer in V2.1 is now ready with OPA1656 in DIP8 socket. The idea of this group buy is to propose a full pack @fair price for a brand new Purifi Buffer :
- THD: 0,00026% @ Vin 2,5 V RMS
- GAIN: 14 dB
- BANDWIDTH: 2 Hz - 150 kHz
- SLEW RATE: 24 V/uS
Just got my new Purifi Amplifier, after all, it remains conventional. But it has a custom "made in Italy" Buffer.
The Buffer involves 3 Genuine OP Amps Muse 02 + 03 (one single and two dual, I will give a test with some OPA1656 that I have in stock)
The Buffer globally improve the...
I decided to register here to discuss the Purifi modules. I recently purchased a stock Purifi stereo amp from VTV. It was noticeably better than every other class-D I've heard before. However it suffered from a really bad mid-range: blurry and artificial-sounding. Just awful. I almost returned...
This is a speaker design that Purifi has the free plans for on their site:
I see that @sgoldwin sell these on...
Interested in audio since college 15 years back when I was getting in trouble with a pair of Klipsch SF-3's and a SVS PC12-Plus in a dorm room. Two years ago I upgraded from a 5.1 Klipsch/SVS/Yamaha setup to 7.2.4 Focal Aria/SVS PC-4000/Denon X6400H. I would have went with bigger speakers/subs...
No longer need this because I switched over to Active monitors. This was ordered about 7 months ago from Audiophonics and its in 9.5/10 condition (see pics for details).
Retail price with shipping to US: $1480 or €1299
Sale price: $1179 - Free US shipping and no Paypal fees.
$1,999 U.S. MSRP, press release below.
Variable gain knob and line out for subwoofers, nice touches! :)
2x185W at 8 ohms, 2x340W at 4 ohms. Bridgeable to 1x620W at 8 ohms.
I have asked to Amir what would be the ending SINAD when pairing the new Denon 3700H with a purifi amp.
Please find below its disappointing answer:
Well, I tried to test this scenario but failed completely. :(
Hooking up the output of 3700 to Purifi using RCA to XLR adapter generated worse...
I built three pairs of SPK5 speakers close to the Purifi published SPK5 spec. I am selling two pairs and keeping one. If there is demand for this I will keep building them.
Pictures, description and price on https://www.ebay.co.uk/itm/303634158293