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View Full Version : FS: First Watt SIT-3 amp



anubisgrau
18-11-2018, 11:18
I have for sale one stereo power amp made by Nelson Pass with currently unobtanium SemiSouth Static Inductor transistors (SIT): First Watt SIT-3.

Limited run of 250 pieces, already sold out in bare 2 months of production.

18w of SIT class A, with unusually high damping factor so very good at controlling difficult speakers. I would say anything over 90db/w sensitivity is a speaker good to go with.

http://www.firstwatt.com/pdf/prod_sit3_info.pdf

Lots of very positive impressions world wide:

http://www.6moons.com/audioreviews2/firstwatt5/1.html

https://theaudiobeatnik.com/reviewing-nelson-pass-first-watt-sit-3/

http://jeffsplace.me/wordpress/?p=13954


Lots of effort to "tune" 2HD and to emulate a triode sound (whatever this means) while having benefits of solid state (lower running costs). Class A but doesn't get unreasonably hot so plain 10cm above lid is enough (much cooler than F3 I used to own).

The unit for sale (sorry for bad pics, I need to wait for a better daylight)

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/46391161_10155941630027643_7822415183061450752_n.j pg?_nc_cat=102&_nc_ht=scontent.fbeg2-1.fna&oh=82f5494a4a8873136eb5777a653c5056&oe=5C6DABA4

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/46413096_10155941629997643_2237308473769459712_n.j pg?_nc_cat=101&_nc_ht=scontent.fbeg2-1.fna&oh=a295f97b457723e73ddaf658e4886f4f&oe=5C6840EB

One month old, barely run in. Fully boxed with all the papers as delivered from the US. You are basically buying a new unit.

European RRP 5000 EUR. Asking 3570 EUR delivered to London area, plus additional costs of local UK shipping. I would appreciate if you could organize courier and accept responsibility for this part of transport. Payment by bank transfer or PPG, whatever you prefer.

hornucopia
18-11-2018, 16:29
Lovely,Gordan.
Can't quite make out....is it 240V?

anubisgrau
18-11-2018, 16:34
Yes 240V AC as factory set by Pass Labs who are now in charge of First Watt production.

anubisgrau
02-12-2018, 07:57
Some more pics.

Factory 240V AC unit:

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/47325104_10155968944892643_4654345411727720448_n.j pg?_nc_cat=103&_nc_ht=scontent.fbeg2-1.fna&oh=82b691541094efa4e1ee98eda1a68118&oe=5CA3D13D

Ready to safely ship in original package:

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/47431704_10155968944972643_56426558780342272_n.jpg ?_nc_cat=102&_nc_ht=scontent.fbeg2-1.fna&oh=0faddd49b6baeda82007711af840d40f&oe=5C9FBE94

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/47199596_10155968945002643_2203538971282112512_n.j pg?_nc_cat=109&_nc_ht=scontent.fbeg2-1.fna&oh=f6af767afe1ebd69f418f045a2d493d3&oe=5C9E239F

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/47320558_10155968944907643_4835015324157870080_n.j pg?_nc_cat=101&_nc_ht=scontent.fbeg2-1.fna&oh=efea2a2b1c09b162400972574c0f7076&oe=5CA8232E

It's a lovely one:

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/47301060_10155968945017643_3929504534463774720_n.j pg?_nc_cat=106&_nc_ht=scontent.fbeg2-1.fna&oh=539a3bb4dcf39dce959e3f895a20971d&oe=5C9D7A81

https://scontent.fbeg2-1.fna.fbcdn.net/v/t1.0-9/47052487_10155968944877643_566132305144315904_n.jp g?_nc_cat=104&_nc_ht=scontent.fbeg2-1.fna&oh=886c0e96bea8d637920509172ba43859&oe=5C6B696A

Still cheaper than the competition:

https://www.club-hifi.com/forum/topics/ampli-first-watt-sit-3-neuf-vendre-1

or

https://www.hi-fi.ru/auction/detail/1125732

(350.000 RUB is 4,600 EUR)

Bigman80
02-12-2018, 09:17
I read a lot about the SIT they developed for this amp. Reviews seemed very positive.

GLWS.

anubisgrau
19-01-2019, 21:56
Avialable. PMs replied, apologies for delay.

fabiodeluca
23-01-2019, 07:05
Hi

Is the amplifier still available?

Regards and thanks
Fabio

anubisgrau
23-01-2019, 08:48
Some negotiations in process but nothing confirmed yet, so the answer is that the amp is availabile.

anubisgrau
25-01-2019, 21:56
Here's the new amazing review of the amp, this time in Stereophile:

"I consider this type of thinking radical intelligence, and my experience with the First Watt SIT-3 suggests that it is among Nelson Pass's finest achievements. It's too bad that SemiSouth went south; it's too bad Pass will make only 250 SIT-3s; it's too bad that so few audiophiles will ever experience its unique, information-rich pleasures; and it's too sad that even fewer audiophiles will comprehend the 100 years of engineering wisdom distilled by Nelson Pass into this modestly priced masterpiece. Bravo, Maestro!"

Read more at https://www.stereophile.com/content/first-watt-sit-3-power-amplifier

Lots of interest but nothing confirmed yet, so still available.

https://www.stereophile.com/images/119first.life.jpg

anubisgrau
28-01-2019, 23:22
Not available anymore, thanks for interest.