"Pete" wrote in message
...
I am looking to build an amp for home theatre/hifi use.
currently have an amp using Hitachi's default design for mos fets from the
'80's ( 2sk49 2sj50 I think ). It is used with a tagmclaren av32r and ipl
acoustics tl4 speakers at the front and Ariston ( small black tubular
things that sound quite good ) at the back.

I plan using LM4702 but have three options for the output stage.

bipolar
SAP15P and SAP15N
2SA1943 and 2SC5200
mosfet
2SK1530 and 2SJ201

I know I'm inviting WW3 but would there be any differance in sound between
them ?

**Depends on implementation. The MOSFETs, of course, will always sound like
MOSFETs - dull, boring, undynamic and compressed. The 2SA1943/2SC5200
devices are amongst the most advanced, lowest distortion output devices
developed. The SAP15s are easy and convenient to implement, but you run the
risk of using a device unique to a single manufacturer. Once that
manufacturer deletes them from the product line-up, you'll be screwed for
spare parts later on. Personally, I like the 2SA1943/2SC5200 devices,
Collectors coupled to the load.


--
Trevor Wilson
www.rageaudio.com.au