can you hear power on/off pops?I have that amp-sounds like it should-transparent and powerful. No issues.
can you hear power on/off pops?I have that amp-sounds like it should-transparent and powerful. No issues.
no but I turn everything on and off with a switched power strip and the preamp it's being fed by has a fairly long warm up time so there's no way I could hear pops the way it's hooked up.can you hear power on/off pops?
I think Amir has tested a range of Purifi based amps now, some with better (on paper) op-amps and there was no real difference.A lot of the tests were shown with the op-amps and buffers totally bypassed, which strikes me as unhelpful - they're going to be one of the main potential sources of difference between Purifi implementations, and most people will be using them, so for the tests to be useful for comparisons, you want to keep them in-circuit throughout. Otherwise you're just re-testing the bare Purifi modules, almost. (But I guess you learn a bit about the wiring.)
I hear a subtle pop with my C298 every time I turn it on. I contacted NAD and they said this:can you hear power on/off pops?
Nah. Am in Europe, but I think I'll buy a Behringer A800 & spend the change on adding to the wine cellar.View attachment 194307
If you're in Europe, this is a "no-brainer" purchase, if you want the best Class D performance, for a cost.
Otherwise, Hypex nCore amps are the cheaper alternatives.
I hear a subtle pop with my C298 every time I turn it on. I contacted NAD and they said this:
"Regarding about your C298.
I have asked our engineers and they comment that is normal. The chassis would make a click when the PSU turns on. And if the speakers are sensitive, they would make a faint pop/crack upon turning on."
I was thinking the same to complement a Denon x3700h to power LCR, when I will add 4 Atmos later this year.Hi. I want to ask the experts whether the power supply that is mounted in this amplifier would be enough for a 3-channel version. Audiophonics offers this 3x Purifi variant and I'm interested in it, I'm just worried about the sufficiency of the power supply.
I was thinking the same to complement a Denon x3700h to power LCR, when I will add 4 Atmos later this year.
When I see the power consumption of my Denon being at less than 100watts of consumption with 5 loud speakers according to its power indicator, I don't think I will need 3*200watts continuously just for LCR, and in worse case, I will loose 33% of power, so less than a db.
So it sounds like being a limiting factor, but practically not in the usable range I would say.
Not sure how you are measuring Denon 3700 energy use. My Denon 4700 measures 132W in idle with Kill-o-watt. Obviously, watts used will be increased at 85dB. I don't think it's possible for the Denon 3700 to measure 100W while in use. Except, if you use it in full pre-out mode with no internal amps powering speakers. It's power use should drop to 46W no matter what the volume level is set at in full pre-out mode.I was thinking the same to complement a Denon x3700h to power LCR, when I will add 4 Atmos later this year.
When I see the power consumption of my Denon being at less than 100watts of consumption with 5 loud speakers according to its power indicator, I don't think I will need 3*200watts continuously just for LCR, and in worse case, I will loose 33% of power, so less than a db.
So it sounds like being a limiting factor, but practically not in the usable range I would say.
The price is 1490€ not 490€. Unfortunately being a member of ASR does not provide any advantage!I don’t understand the price of the review, only 490 euro? And what you mean member of this group? There is a special price for the members of this grou?
A member of ASR requested from the manufacturer to send a review sample to Amir, which they did.And what you mean member of this group? There is a special price for the members of this grou?
Ahahh I probably misread the bar under eco indicator on the screen. This amp is new to me.What do you mean by "according to its power indicator?
My bad.Not sure how you are measuring Denon 3700 energy use. My Denon 4700 measures 132W in idle with Kill-o-watt. Obviously, watts used will be increased at 85dB. I don't think it's possible for the Denon 3700 to measure 100W while in use. Except, if you use it in full pre-out mode with no internal amps powering speakers. It's power use should drop to 46W no matter what the volume level is set at in full pre-out mode.
Ahahh I probably misread the bar under eco indicator on the screen. This amp is new to me.
My bad.
What the power indicator on the OSD is providing?
I see roughly 50-60% of the bar.
Anyway, this is far below the 1200w of the audiophonics 3 channels purifi.
As I understand the 3700 has a power supply of 550watts, isn't?
I had pops on power on. No pops with a either Parasound and Monoprice Monolith amps.can you hear power on/off pops?
Does the AUDIOPHONICS LPA-S400ET contain a 5-12V trigger?I received the small case version (LPA-S400ET ) about a month ago. Very good the experience with Audiophonics (they helped me with some explanation on input gain configurations). My thoughts:
Cons (minimal):
1. Some design choices: the power switch is bi-stable, meaning if the general circuit breaker of home shuts down and then restarts, the amplifier is also restarting again. I would have preferred a mono-stable circuit breaker since safer. And maybe the cooling vents are too wide.
2. The configuration I received is the one with maximum gain (~ 2.25V RMS), and this is absolutely reasonable since all the jumpers are connected in this configuration. Audiophonics website says the default configuration should be the medium gain one ( ~ 4.2V RMS), the one i wanted, but this configuration would require the "Gain+" jumpers to be disconnected. So i had to open the amplifier by removing the top cover (just pull 2 screws at the front and 2 at the back). It is not a real defect, just a warning in case you cannot resist to plug-in your new amp and you have a high-voltage source: check the volume is not high to avoid clipping. Shit happens. I just wrote them an email asking to update their product page with the correct default configuration.
Pros:
1. Build quality: when i opened the amplifier to remove the jumpers, i noted the build quality and the engineering are very accurate from this detail: the bottom side of the case had a sort of rails on the edges, so that the top cover fits perfectly. Wow. The case is quite thick, the gold-plated speaker terminals are chunky as they would be in a snake-oil million dollar amp. The interior is crowded but well in order.
2. Blue leds you can see from the cooling vents are fancy
3. OMG the sound is unbelievable. I have a pair of Revel F208 and the source is a Topping D70S. As the amplifier was switched on (with just a barely noticeable hump) I noticed a very slight hiss from the Revel's tweeter. Then i switched on the source, and the hiss disappeared. The loudspeaker was completely silent like no other amplifier before (I had a Nad C320BEE and a Nuprime ST-10).
Then the music started, i noticed much more details were coming out of the speaker than usual. Soundstage was very focused, and bass was very well defined, the woofers being fully under control of the amplifier. I didn't do any blind test, just have a subjective feeling that this is by far the best amplifier i had.
After some hours playing, the case is mildly warm, less than the Nad or the Nuprime. Very good.