lateral mosfets in high end amplifiers

[sparkle]

Hi,
does anybody knows if some of the high quality amplifier manufacturers is using lateral mosfets...which manufacturer and which mosfets if it is known...
thanks
regards
daniel

 

[sixtek]

Hi,

For example 2SK1058/2SJ162 (formerly manufactured as 2SK135/2SJ50 in TO-3 case) by Hitachi.

 

[sparkle]

oupss....made mistake

i was not clear enough....

does somebody knows which manufacturer of high quality audio amplifiers uses (if anybody is using them) lateral mosfets...

manufacturers like Mark Levinson, Krell (well, i know Krell is not using them but) and not manufacturers like Hitachi, Renesas )

my mistake, sorry....

 

[Zen Mod]

Ozie amps

Aussie amps

whatever.......for instance

 

[jackinnj]

Hi,
does anybody knows if some of the high quality amplifier manufacturers is using lateral mosfets

well, one of them will be at the Home Entertainment show in New York this week.

 

[sparkle]

The Saint - Aussie amplifiers is a nice guy but not a professional making manufacturer - he is a designer and is selling boards, kits and so on ...i value him and his professional work a lot - but he is not a manufacturer like Levinson and Krell for example... i was thinking about a manufacturer......

 

[maxlorenz]

"Hi-End at low cost"

http://www.monarchyaudio.com/

If "low cost" is not questionable...

 

[sparkle]

thank You maxlorenz....

i can't find that they are using lateral mosfets but i will trust in You...

 

[AndrewT]

Hi,
JE Sugden used to, but don't know the current range.
Michell use FETs and I guess they are NOT verticals.

 

[maxlorenz]

I used to have Monarchy's SE100deluxe monoblocks.
Hitachi 2SK1058/2SJ162, if I recall well, 8 units total as output devices.

I think their new SE-250 hybrid amp uses 12 units

Cheers,
M

PS: you can mail the CEO asking for info. Mr CC Poon is comunicative, in a laconic style...

 

[Leolabs]

Acoustic Arts from Germany.

 

[sparkle]

thank You for the informs
regards

 

[sparkle]

Acoustic Arts seems to be a nice company all right...nice looking products....

lateral mosfets are rather expensive - this is probably the reason why they are not used more in audio ...

anybody knows any other reason for not using them in audio instead of the normal Mosfet's like IRF group...

 

[ACTIVA]

Hi,
Older models from Goldmund like the Mimesis 7, 9
Audio Synthesis Power amps
Older models from Spectral like the DMA200, DMA180

Regards
Max

 

[sparkle]

any sch available?

 

[CeramicMan]

It might be because audio is a niche market. Most MOSFET applications are used for high speed switching. High power linear operation with high losses and the associated heat-cycling of the silicon just isn't a popular design solution for practically anything except audio.

I think lateral MOSFETs may be a cheaper, older technology, but they just don't enjoy the same economies of scale.

 

[jackinnj]

Acoustic Arts seems to be a nice company all right...nice looking products....

lateral mosfets are rather expensive - this is probably the reason why they are not used more in audio ...

anybody knows any other reason for not using them in audio instead of the normal Mosfet's like IRF group...

Most like the issue is price -- they are 3x the price of a HexFET -- and single source --

 

[Christer]

Most like the issue is price -- they are 3x the price of a HexFET -- and single source --

Single source? We have at least three brands of lateral MOSFET, although perhaps only two manufacturers if Charles Hanssen has correct information.

Price seems to have gone up, though, also for the Exicon parts.