TriodeFet vs. SET? What are the Sonic Differences?

[Audiohertz2]

Try and work on your comprehension son , i did not say all SS amps sound alike ..!

BTW , JH was very correct in what he said, do the experiment , volume match and report how many amps with the same distortion spectra , not clipping sound dis-similar @8ohm ..

We did decades ago it was , err, Surprising ..!

 

[treitz3]

Okay, let's please drop the personal commentary. Just stick to the thread topic.

Tom

 

[morricab]

Try and work on your comprehension son , i did not say all SS amps sound alike ..!

BTW , JH was very correct in what he said, do the experiment , volume match and report how many amps with the same distortion spectra , not clipping sound dis-similar @8ohm ..

We did decades ago it was , err, Surprising ..!

I didn’t say all SS amps either…whose comprehension needs work?

I knew there was a budding JH in there just waiting to get out. Thx for confirming.

And just so you know, nearly none of them have the same distortion spectrum…even from the same brand.

 

[Audiohertz2]

Pssst , George the FIA watching ...!

 

[OnlySoMany]

I cannot comment on the Protos, but I can confirm the Genus sounds absolutely amazing. I am using mine as an end game headphone amp, so you could say I'm not using all of its power, but there is no denying the results. Previously I was using a Viva Egoista 845. My Genus is the 813 tube version.

 

[Synaxis]

I cannot comment on the Protos, but I can confirm the Genus sounds absolutely amazing. I am using mine as an end game headphone amp, so you could say I'm not using all of its power, but there is no denying the results. Previously I was using a Viva Egoista 845. My Genus is the 813 tube version.

Having heard both their TriodeFET and SE gear, and now the owner of first their Genus and now their mono blocks, I can honestly say they all have the Aries-Cerat magic and there is not one "better". Just different degrees of Aries-Cerat.

 

[cjfrbw]

Sounds like the tech is schade enforcement of the 'pentode' MOSFET into triode behavior. They have these on DIY forum. How it differs from 'true triode' solid state like SIT and VFET, hard to say, I have never done a comparison. The tube driver seems like a good idea. People who use the schade MOSFETS single ended really like them.

Of course, implementation and refinement can be 95 percent of the ball game. Aries Cerat looks to be their customary amazing build quality.

I would say from my own experience that SIT and VFET single ended have tube triode sound characteristics but with more lustre and better attack. Traditional tube SET can have an edge in somewhat more luxurious spatial effects and transitions. I like both, which is why have versions of each.

 

[Atmasphere]

I would say from my own experience that SIT and VFET single ended have tube triode sound characteristics but with more lustre and better attack.

To be clear, SIT (Static Induction Transistor) and VFET (Vertical Field Effect Transistor) are actually the same thing.

 

[cjfrbw]

To be clear, SIT (Static Induction Transistor) and VFET (Vertical Field Effect Transistor) are actually the same thing.

Yes, they are more or less used interchangeably. I don't know if TriodeFet refers to the schade thing with the MOSFET or not, or just means 'triode tube with single ended MOSFET follower'.

 

[analogsa]

The TriodeFET appears to be a proprietary device.

They may have someone producing it locally

You really think this is a device, rather than a topology? With "someone" producing it "locally"????

 

[Atmasphere]

You really think this is a device, rather than a topology? With "someone" producing it "locally"????

As I mentioned earlier in one of the posts you quoted, there's not enough information on their website to really know. Its likely just marketing.

 

[morricab]

As I mentioned earlier in one of the posts you quoted, there's not enough information on their website to really know. Its likely just marketing.

It’s not marketing. It’s a single ended, single stage amplifier using both triode and FET. You clearly don’t have any idea what that might be so why say nonsense?

 

[Audiohertz2]

I didn’t say all SS amps either…whose comprehension needs work?

I knew there was a budding JH in there just waiting to get out. Thx for confirming.

And just so you know, nearly none of them have the same distortion spectrum…even from the same brand.

I guess you know this from your extensive bench testing ..

 

[Audiohertz2]

The details of the technical aspects are not disclosed and so what I know is what has been told to me by Stavros from Aries Cerat.

It is a small signal triode connected with a MOSFET to operate as a hybrid single element. I do not know what this circuit looks like and how they are connected together.

The result is a single amplification element that is a compound element with triode and FET and therefore the name TriodeFet. It is pure class A without feedback and is a single ended and single stage amplifier, meaning it has sufficient gain to operate as an integrated amp without preamp. That said, I drive my Protos with an Incito preamp, which allows better matching with my sources.

I have owned both the Aries Cerat Genus and now the Aries Cerat Protos. The Genus is a SET and the Protos a TriodeFET. Both sound amazing. The TriodeFet is perhaps bit less of that DHT thing, which some people might miss. Otherwise, they sound quite similar in terms of weight, tonality, transparency etc. Bass is tighter, and honestly a bit more SS than the Genus.

If its an integrated amp it has a preamp stage. The Incito Pre amp does have a big voltage drive suitable for such an amplifier. The Specs really isn’t detailed enuff on the power drive . Can the amp drive a 4 ohm load or does the speaker load have to be a min of 8 ohm ?

 

[morricab]

If its an integrated amp it has a preamp stage. The Incito Pre amp does have a big voltage drive suitable for such an amplifier. The Specs really isn’t detailed enuff on the power drive . Can the amp drive a 4 ohm load or does the speaker load have to be a min of 8 ohm ?

No, it is a single stage amp with sufficient gain to deal with sources directly. A volume control and input switching are added in front.
I am not sure it can handle 1 ohm but down to 2 ohms is not a problem.

 

[morricab]

I guess you know this from your extensive bench testing ..

There is extensive bench test data available from Stereophile and SoundStage. One just has to be willing to mine a bit to find some answers…

 

[Rob181]

There is extensive bench test data available from Stereophile and SoundStage. One just has to be willing to mine a bit to find some answers…

Or one could post a copy of validating data when making claims to underpin said claims - so much more professional...

 

[morricab]

Or one could post a copy of validating data when making claims to underpin said claims - so much more professional...

This is an audio discussion forum not a peer reviewed publication…I have pointed out where you should look and now it’s up to you to satisfy your curiosity or not. If you dig in and think I am in error then we have something to discuss…

 

[Aries Cerat]

If its an integrated amp it has a preamp stage. The Incito Pre amp does have a big voltage drive suitable for such an amplifier. The Specs really isn’t detailed enuff on the power drive . Can the amp drive a 4 ohm load or does the speaker load have to be a min of 8 ohm ?

Hi

It is single stage , no preamp stage. Volume is done by r2r array.
Yes it can drive down to 2ohms , though with lower power as it is SE. Stable down to 1.

Cheers

 

[Rob181]

If you dig in and think I am in error then we have something to discuss…

You invited me in....
You are the "Swiss Importer/distributor for Aries Cerat Ltd" & you are not using every opportunity to provide advice on the benefits & specs of the Aries Cerat products. This was the perfect opportunity to do so - BUT - what do you do - tell a potential customer to go & look for the info themselves. If I was Stavros - I'd be questioning the value that you provide on behalf of my company - especially on a website site that has members the world over...