First watt Build

Audio_D · 13th April 2011, 02:46 PM

Hi All

I would like to bild a first Watt F2 or F3 for my Fostex fullrange horns, reading through a few threads it seems the F3 may be a more versitle amp so I am looking to get the circuit boards.

I can get the F2 boards but would also like to know if any F3 are available. I will be reading up on the F5 also as there seems to be a lot about it, is it an improvement over my other choices or just a differnt type of amp?

Thanks

Audio_D

flg · 13th April 2011, 04:37 PM

Check Peter Danials for boards. Audio Sector maybe? Otherwise a search may be fruitfull??? Don't forget an F3 is almost the same as a ZV9...

Audio_D · 14th April 2011, 02:49 PM

Thanks for the reply, Nelson as also commented towards the F3, however I would like to use circuit boards with whatever one i choose to build.

F2 boards are what I can get hold of at the moment so its looking like an F2 build for now. Once I can get the list of component check availability then I can make a start.

I was going to go for a Type 45 valve amp to go with the Fostex speakers, but some Pass amps are built for full range plus the use of a little more power so here we are, the hunt for F2 components.

flg · 14th April 2011, 04:53 PM

Quote:

Originally Posted by Audio_D

I was going to go for a Type 45 valve amp to go with the Fostex speakers, but:

Oh yea baby, Love them 45s
However, maybe you should consider the F2J?

blue lander · 14th April 2011, 07:45 PM

I went from 45 tubes to a F5 on my Fostex horns and it trounced the 45 in virtually every way. I'm going to try a F2j once I get the jfets for it.

Russellc · 14th April 2011, 08:44 PM

Quote:

Originally Posted by blue lander

I went from 45 tubes to a F5 on my Fostex horns and it trounced the 45 in virtually every way. I'm going to try a F2j once I get the jfets for it.

Agreed! I've been a hard core tube guy for years, and this F-5 really caused me some serious rethinking. I have several projects in the hopper, no tubes in any of them, all Pass of course. I NEVER thought that would happen.

And no, it isnt a case of "its a solid state amp that sounds like tubes" it really isnt. It does not sound like a tube amp, it sounds better.

Russellc

blue lander · 15th April 2011, 02:21 PM

The 45 has slightly more of that tube "sweetness" in the middle range, but the F5 is miles ahead of it in so many other ways that there's no contest. That's not to say the F5 isn't sweet, it's sweeter than any PP tube amp I've heard. Just not as sweet as a 45 SET

Audio_D · 19th April 2011, 03:52 PM

Guy's;... thanks for the responses on this, so good reports on the F5 and that 6 moons article is also encouraging.

So... anyone know of any PCB,s going?
F5, F2j, F3 ?

Audio-D

Russellc · 19th April 2011, 04:48 PM

Quote:

Originally Posted by blue lander

The 45 has slightly more of that tube "sweetness" in the middle range, but the F5 is miles ahead of it in so many other ways that there's no contest. That's not to say the F5 isn't sweet, it's sweeter than any PP tube amp I've heard. Just not as sweet as a 45 SET

I have a 45 amp build going on, (has been for years) and when it is finished, I would like to run it into the F-4.

Russellc

ramallo · 19th April 2011, 04:58 PM

The F5 is a great amplifier, one of the greatest, I have other Pass amplifiers (DIY and commercials). The XA30.5 is my favorite but shared with the F5.

The F5 make a superb combination with the DCB1 (But be careful with the offset)

13th April 2011, 02:46 PM	#1
Audio_D diyAudio Member Join Date: Jan 2009 Location: London	First watt Build Hi All I would like to bild a first Watt F2 or F3 for my Fostex fullrange horns, reading through a few threads it seems the F3 may be a more versitle amp so I am looking to get the circuit boards. I can get the F2 boards but would also like to know if any F3 are available. I will be reading up on the F5 also as there seems to be a lot about it, is it an improvement over my other choices or just a differnt type of amp? Thanks Audio_D

13th April 2011, 04:37 PM	#2
flg diyAudio Member Join Date: Jul 2005 Location: North East	Check Peter Danials for boards. Audio Sector maybe? Otherwise a search may be fruitfull??? Don't forget an F3 is almost the same as a ZV9... __________________ “Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” Dr. Seuss

19th April 2011, 04:58 PM	#10
ramallo diyAudio Member Join Date: Nov 2004 Location: Madrid	The F5 is a great amplifier, one of the greatest, I have other Pass amplifiers (DIY and commercials). The XA30.5 is my favorite but shared with the F5. The F5 make a superb combination with the DCB1 (But be careful with the offset) __________________ Happiness is a warm soldering iron

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14th April 2011, 02:49 PM	#3
Audio_D diyAudio Member Join Date: Jan 2009 Location: London	Thanks for the reply, Nelson as also commented towards the F3, however I would like to use circuit boards with whatever one i choose to build. F2 boards are what I can get hold of at the moment so its looking like an F2 build for now. Once I can get the list of component check availability then I can make a start. I was going to go for a Type 45 valve amp to go with the Fostex speakers, but some Pass amps are built for full range plus the use of a little more power so here we are, the hunt for F2 components.

14th April 2011, 07:45 PM	#5
blue lander diyAudio Member Join Date: Jul 2009	I went from 45 tubes to a F5 on my Fostex horns and it trounced the 45 in virtually every way. I'm going to try a F2j once I get the jfets for it.

15th April 2011, 02:21 PM	#7
blue lander diyAudio Member Join Date: Jul 2009	The 45 has slightly more of that tube "sweetness" in the middle range, but the F5 is miles ahead of it in so many other ways that there's no contest. That's not to say the F5 isn't sweet, it's sweeter than any PP tube amp I've heard. Just not as sweet as a 45 SET

19th April 2011, 03:52 PM	#8
Audio_D diyAudio Member Join Date: Jan 2009 Location: London	Guy's;... thanks for the responses on this, so good reports on the F5 and that 6 moons article is also encouraging. So... anyone know of any PCB,s going? F5, F2j, F3 ? Audio-D

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