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Review and Measurements of Purifi 1ET400A Amplifier

maxfl1

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And the Apollon looks so much better :) I just ordered their Purifi stereo mini - excited for it to show up!
I ordered mine on April 21st. Still waiting. No communications. Sent them an email Sunday, no reply yet.
 

JimB

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Vander

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My first post here:
Ordered an Apollon purifi stereo mini on 8th of April and but I still haven't received it. Tibor has told me on a couple of occasions that it will be shipped "next week" but still nothing.. Getting a bit worried.
 

Phorize

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My first post here:
Ordered an Apollon purifi stereo mini on 8th of April and but I still haven't received it. Tibor has told me on a couple of occasions that it will be shipped "next week" but still nothing.. Getting a bit worried.
There are international supply chain issues impacting on both hypex and purifi. It’s likely to be affecting your order. Just speculating.
 

maxfl1

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Good news! Tibor emailed me yesterday that my "mini" order from April is about to go through testing and to be shipped soon. Hopefully, things are starting to improve. I was prepared when I put my order in that it would be some time before I would receive it.
 

ezra_s

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And the Apollon looks so much better :) I just ordered their Purifi stereo mini - excited for it to show up!

I just saw your message, I was looking to buy that one, did you get it yet? Is it good? Happy with your purchase?
 

Vander

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Received the "mini" last Friday. I haven't been able to fully assess it yet, but the sound is very promising indeed. It's powerful and lively with great bass and delicate treble. I'm not sure why it took so long to arrive, but it seemed to have been in its shipping packaging for quite some time, since the black plastic wrapping used sadly left marks on the high gloss surface of the amp, almost like a chemical reaction. I guess I have to try to polish it out..
 

ezra_s

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Received the "mini" last Friday. I haven't been able to fully assess it yet, but the sound is very promising indeed. It's powerful and lively with great bass and delicate treble. I'm not sure why it took so long to arrive, but it seemed to have been in its shipping packaging for quite some time, since the black plastic wrapping used sadly left marks on the high gloss surface of the amp, almost like a chemical reaction. I guess I have to try to polish it out..

So?

We wants feedbacks!!! :p
 

BrokenEnglishGuy

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Hey hello
i saw that the bmb Philharmonic tower have 6ohm of impedance in the woofer... seems to be a problematic impedance since this amp gives more power at lower impedances (?)
I know the power at 8ohm which is around 130w and 260w~ at 4ohm but what about 6ohm?
This tower speaker is very interesting but 6ohm ? o_O
1625028569309.png
 

boXem | audio

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Hey hello
i saw that the bmb Philharmonic tower have 6ohm of impedance in the woofer... seems to be a problematic impedance since this amp gives more power at lower impedances (?)
I know the power at 8ohm which is around 130w and 260w~ at 4ohm but what about 6ohm?
This tower speaker is very interesting but 6ohm ? o_O
View attachment 138203
Around 173 W
 

KarVi71

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Hey hello
i saw that the bmb Philharmonic tower have 6ohm of impedance in the woofer... seems to be a problematic impedance since this amp gives more power at lower impedances (?)
I know the power at 8ohm which is around 130w and 260w~ at 4ohm but what about 6ohm?
This tower speaker is very interesting but 6ohm ? o_O

There are more factors to this.

First of all the 130W and 260W numbers are very conservative, taken at very low distortion figures.

If you allow the amps to reach the industry "standard" of 1% distortion, the amps are producing well above 200W and 400W.

And that would mean 300Watts at 6 Ohms.

My Dali Mentor 6's are 6 ohm speakers, and my Purifi's have no problems driving these to very very loud levels, completely clean and undistorted.
 

1lifeliveit

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Ordered the VTV purifi Eval Stereo amp last week and got it delivered to Australia yesterday!.
Can vouch for the quality of the case and everything was put together nicely.
The performance of the amp - if there's one word to describe it, would be CLEAN.
I have a raspberry pi with moode audio feeding a SMSL Sanskrit 10th Mk2 which connects directly to the amp. Speakers are Martin Logan motion 40s

Previously tried the SMSL DA-9 which was my first Class D amp and I found it lacking a bit in the midrange. I was worried if the purifi would exhibit similar characteristics. Absolutely nothing to worry about. The sound is powerful, crisp clean regardless of the volume. Cant stop listening to it.

I think my audio game has come to an end. (at least for a while).
 

restorer-john

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If you allow the amps to reach the industry "standard" of 1% distortion, the amps are producing well above 200W and 400W.

1% is generally defined as clipping. Basically it is the amplifier hitting the wall. It's all over at 1% and your output is not remotely "HiFi"

No brand with pretensions or aspirations to high fidelity should advertise rated power at 1% THD. And a 1% rated THD is not "industry standard" at all.
 

Phorize

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Ordered the VTV purifi Eval Stereo amp last week and got it delivered to Australia yesterday!.
Can vouch for the quality of the case and everything was put together nicely.
The performance of the amp - if there's one word to describe it, would be CLEAN.
I have a raspberry pi with moode audio feeding a SMSL Sanskrit 10th Mk2 which connects directly to the amp. Speakers are Martin Logan motion 40s

Previously tried the SMSL DA-9 which was my first Class D amp and I found it lacking a bit in the midrange. I was worried if the purifi would exhibit similar characteristics. Absolutely nothing to worry about. The sound is powerful, crisp clean regardless of the volume. Cant stop listening to it.

I think my audio game has come to an end. (at least for a while).
My P452 drive my 6 ohm harbeths beautifully.
 

jae

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Ordered the VTV purifi Eval Stereo amp last week and got it delivered to Australia yesterday!

Did you have to pay GST on the import? Curious if there was any price difference versus going with March Audio P452 which is ~$1600 AUD domestically (not sure if that's including GST) and frankly looks a bit nicer to me.
 

1lifeliveit

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No I didnt pay GST. I did consider the P452 - its actually 2150 AUD, quite a jump from the 1500 or so AUD I paid including shipping.

Believe it or not, the price was not the issue - the size was. The P452 just wouldn't fit in the bookshelf where it was going (unless I put it sideways) - the VTV does.
 

BrokenEnglishGuy

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i have a question, i have some randoms pops sometimes when i listen to my speakers
using vtv purifi, how can i solve that? when i use my pre/dac/headphone amp i don't hear any of these little pops
 

1lifeliveit

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i have a question, i have some randoms pops sometimes when i listen to my speakers
using vtv purifi, how can i solve that? when i use my pre/dac/headphone amp i don't hear any of these little pops
I'll let the experts help you with this. But the only time I hear a slight pop (it's more like a gentle crackle) is when I switch on amp directly from the power point.

I bought an rf remote controlled powerpoint to switch on/off the amp, but looks like the rf is interfering with amp. With the rf powerpoint on I hear crackling (as if I'm listening to an old vinyl) during the music. So I have taken it off and now leave the amp on all the time
 

BrokenEnglishGuy

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I'll let the experts help you with this. But the only time I hear a slight pop (it's more like a gentle crackle) is when I switch on amp directly from the power point.

I bought an rf remote controlled powerpoint to switch on/off the amp, but looks like the rf is interfering with amp. With the rf powerpoint on I hear crackling (as if I'm listening to an old vinyl) during the music. So I have taken it off and now leave the amp on all the time
hmm i don't know what it is, i hear those pops sometimes, for example now i didn't hear any pop in 3 hours of listening hmm..
 
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