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The stock Hypex buffer is not appropriate to use in a commercial product as it does not have the requisite filtering to protect from random noises picked up from cellphones, etc. I would go with the EVAL1 unit. It is essentially the same as the Purifi evaluation units that have been tested by a few reviewers, including Amir.
I was considering it until I saw the speaker connections that looked weirds. Those seems to be for banana plugs only? Is there any links to a credible source on the "stock Hypex buffer is not appropriate to use......"? Thank you.
According to VTV, that's the way it came with the Eval1, wonder why ASR's reviewed unit has the standard 3 way binding posts.
I was considering it until I saw the speaker connections that looked weirds. Those seems to be for banana plugs only? Is there any links to a credible source on the "stock Hypex buffer is not appropriate to use......"? Thank you.
According to VTV, that's the way it came with the Eval1, wonder why ASR's reviewed unit has the standard 3 way binding posts.
The unit Amir reviewed was a preproduction unit. All of the EVAL1 boards being sold today have those banana connectors.
I am sure that VTV could replace the banana jacks on the EVAL1 with standard binding posts if you wish.
As for the problems with the developmental Hypex buffer, do a search on this forum. All the info is here. In short, don’t buy a unit that uses the Hypex buffer. It’s meant for development use only and does not have the necessary filtering to be used in commercial products.
I was considering it until I saw the speaker connections that looked weirds. Those seems to be for banana plugs only? Is there any links to a credible source on the "stock Hypex buffer is not appropriate to use......"? Thank you.
According to VTV, that's the way it came with the Eval1, wonder why ASR's reviewed unit has the standard 3 way binding posts.
The unit Amir reviewed was a preproduction unit. All of the EVAL1 boards being sold today have those banana connectors.
I am sure that VTV could replace the banana jacks on the EVAL1 with standard binding posts if you wish.
As for the problems with the developmental Hypex buffer, do a search on this forum. All the info is here. In short, don’t buy a unit that uses the Hypex buffer. It’s meant for development use only and does not have the necessary filtering to be used in commercial products.
The unit Amir reviewed was a preproduction unit. All of the EVAL1 boards being sold today have those banana connectors.
I am sure that VTV could replace the banana jacks on the EVAL1 with standard binding posts if you wish.
As for the problems with the developmental Hypex buffer, do a search on this forum. All the info is here. In short, don’t buy a unit that uses the Hypex buffer. It’s meant for development use only and does not have the necessary filtering to be used in commercial products.
Thanks again for the quick response. I did email Warren about the option to replace the plug type and he said no, they were fixed on the board. It should be easy to do a DIY mod but with the added cost and voiding the warranty, my preference would be to go with the regular model that has the default buffer. Unfortunately the only choice for the default buffer is the Hypex one.
I did do a search (as I typically would do before bothering others) and I cannot find any objective based talks on why the Hypex buffer is not appropriate for commercial use, except a few posts by March audio such as the one linked below:
Thanks again for the quick response. I did email Warren about the option to replace the plug type and he said no, they were fixed on the board. It should be easy to do a DIY mod but with the added cost and voiding the warranty, my preference would be to go with the regular model that has the default buffer. Unfortunately the only choice for the default buffer is the Hypex one.
I did do a search (as I typically would do before bothering others) and I cannot find any objective based talks on why the Hypex buffer is not appropriate for commercial use, except a few posts by March audio such as the one linked below:
Yes, for me that's my only objection. For others who believe in "subjective measurements", there may be another negative about the Eval1/Eigentakt version, that is, you cannot swap input buffer easily if you wanted to try a different one. That's not an issue for me because I do not believe in those claims of different sound signature between different OPAs that have specs that indicate transparency. Those that do should be reflected in the audio/electrical specs, such as FR, THD etc.
Yes. Actually another negative about the Eval1/Eigentakt is that you cannot swap input buffer easily if you wanted to try a different one. That's not an issue for me because I do not believe in those claims of different sound signature between different OPAs that have specs that indicate transparency. Those that do should be reflected in the audio/electrical specs, such as FR, THD etc.
But I thought you have the VTV, and the Eigentakt board that VTV told me cannot be replaced with the regular binding posts. So if you don't use SpeakOns, how do you get around them, you did a mod?
No, it uses the board that comes with the EVAL1 package.
The VTV EVAL1-based amplifier is pretty much the same thing as the Purifi evaluation until measured by Amir and others. The only notable differences are no control cable from the front light/switch to the board and an EMI/RFI filter on the mains inlet. There are more minor differences including different cabling from the power supply to the buffer board and 5-way binding posts vs. Deltron banana sockets, but those probably will not make measurable or audible differences.
But I thought you have the VTV, and the Eigentakt board that VTV told me cannot be replaced with the regular binding posts. So if you don't use SpeakOns, how do you get around them, you did a mod?
Yes, for me that's my only objection. For others who believe in "subjective measurements", there may be another negative about the Eval1/Eigentakt version, that is, you cannot swap input buffer easily if you wanted to try a different one. That's not an issue for me because I do not believe in those claims of different sound signature between different OPAs that have specs that indicate transparency. Those that do should be reflected in the audio/electrical specs, such as FR, THD etc.
You could also just switch speaker cables (or reterminate the amplifier end of your current speaker cables) with bananas or Speakons. Personally, I find spades to be a PITA and all of my speaker connections are bananas.
You could also just switch speaker cables (or reterminate the amplifier end of your current speaker cables) with bananas or Speakons. Personally, I find spades to be a PITA and all of my speaker connections are bananas.
But I thought you have the VTV, and the Eigentakt board that VTV told me cannot be replaced with the regular binding posts. So if you don't use SpeakOns, how do you get around them, you did a mod?
My amp has 5-way (or whatever) binding posts, but I use banana plugs anyway. Over the years I've used bare twisted wire, spade lugs, etc, but I find that banana plugs are the most convenient.
But I thought you have the VTV, and the Eigentakt board that VTV told me cannot be replaced with the regular binding posts. So if you don't use SpeakOns, how do you get around them, you did a mod?
My amp has 5-way (or whatever) binding posts, but I use banana plugs anyway. Over the years I've used bare twisted wire, spade lugs, etc, but I find that banana plugs are the most convenient.
