PASS F3 Class A single ended Power Amp. Dave Hewitt

[hornucopia]

PASS F3 . 15 watt Class A power amp.


Many of you will recall Dave Hewitt as an active member on AOS. This is a clone he made of the Pass F3, though with some improvements. I thought it appropriate to post it on AOS, in memory of Dave.
It’s 15 watts pure Class A single ended. It also includes a B1 buffer stage on the input for ease of connection choice. Has dual toroids, Aerovox caps. Lovely Italian made case with solid Aluminium front. Chord cable for all power supply wiring plus Silver signal wiring. Typical Class A sound, very like a valve amp but faster with more control (his words). He sat listening to my Ocellia Calliopes playing from this, saying “It’s like sitting in giant headphones”. He loved them.
I’ve used several pre-amps into the F3; LDR; Pass B1; Stereo Coffee, plus my modded Hafler DH 101/112. All good.
Never thought I’d sell this but am bowing to the inevitable; Tinnitus is spoiling listening for me so I’m slimming the hi-fi
It’s a heavy amp, hence the handles! So, ideally, collection from Bristol (J 18, M5)
Get in touch. £750 to AOS folk.


Forgot the review! https://6moons.com/audioreviews/firstwatt4/f3.html

28103
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[walpurgis]

Nice amp Chris, but you need to display full sized photos. Thanks.

[hornucopia]

Need help putting full size photos on here!

[walpurgis]

Done one. Advert now compliant.

https://i.imgur.com/ZX5Yi1K.jpg?1

[Barry]

https://theartofsound.net/forum/attachment.php?attachmentid=28101

https://theartofsound.net/forum/attachment.php?attachmentid=28103

https://theartofsound.net/forum/attachment.php?attachmentid=28102

Beautiful! I would buy this myself, but these days I'm only interested in single-channel monoblock amplifiers that have a balanced input. Good luck with the sale.

[hornucopia]

Thanks Barry. THey ARE special-perfect for my speakers. I llike to have a KISS system; nothing to get in the way of the music.

[willcal48]

Hi Chris,
I am interested in this Amp, but I live in Rhodes-Greece. So if you are interestd will you let me know about p/p and whether I can pay via Paypal and how to go about. I have just joint AOS so I am not familiar with the procedure
Best
John

[hornucopia]

Sorry John. The F3 is too heavy, and Couriers not trusted not to damage it-let alone avoiding Paypal. Good taste in amps though!

As to procedure; check the intro strings. You need 50+ posts to get access to more variety, I think.
Happy listening

[willcal48]

Thanks
I hope you can give it to someone who appreciates it.
Best
John

[oktapod]

That looks nice. If only you were closer (I'm up near Edinburgh) I'd have loved to try that with my Tannoys....

[hornucopia]

OK folks. I've decided that, as the amp was obtained to match the Ocellias, I should keep it for the foresee-able future - unless the Ocellias sell (though they run the Opera horns well also)
So I'm withdrawing this from sale.
Thanks to the Mods for their help and comments-and others.
May be back one day?

[hornucopia]

AS above....it's back!
Still have the Ocellias but I have other amps, so.....have a look.
It's a lovely thing.
It is rather too heavy to trust to Couriers, which I recognise limits me somewhat,
but I'm in no hurry. Collection from close to Junction 18, M5. Avonmouth/Bristol.
You get to hear it then-via choice of speakers!

[hornucopia]

Resting it this week-end, unless required.

[hornucopia]

Just a reminder; a great sounding amp.
https://6moons.com/audioreviews/firstwatt4/f3.html
ALL the F series are eye openers.

[hornucopia]

Stay warm in the autumnal chill.

Can be heard despite varying Govt restrictions!

[hornucopia]

External access means no lock-down hiccups-or coughs! Can be seen and heard, but collection only still (too heavy to post)

[hornucopia]

Works very nicely with Audionote Es, apparently.
Offers considered.....

[AJSki2fly]

Hi Chris, Hope you are doing OK. Was this the amp I heard when I visited you?

[hifinutt]

Surprised this is still around , and those speakers!! Curious about the weight of the amp , any ideas how heavy

[hornucopia]

Hi Chris, Hope you are doing OK. Was this the amp I heard when I visited you?

Yes. The amp is meant for highish efficiency speakers -though it has plenty of power generally.
As to weight....50 lbs is a guess. Twin toroids, big caps...
I guess the sales have slowed in Covid time, but happy to part with amp, and speakers.
Life's too short, etc..
Phil, if you're passing, get in touch! Social distance audition possible!

[AJSki2fly]

Hi Chris

Thanks, I rather liked how it sounded with your Ociela’s, if only I had the money. By the way it’s Adrian, I had your Hifi rack.

All the best to you and your lovely lady,

Afrian


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[hifinutt]

Yes. The amp is meant for highish efficiency speakers -though it has plenty of power generally.
As to weight....50 lbs is a guess. Twin toroids, big caps...
I guess the sales have slowed in Covid time, but happy to part with amp, and speakers.
Life's too short, etc..
Phil, if you're passing, get in touch! Social distance audition possible!

Thanks chris

[hornucopia]

Can still do distancing visits, as entry via garden means al fresco listening possible!
But, more likely, a break from hi-fi visits I guess.

[Mandryka]

Can anyone comment on how well this amp will drive Spendor SP1s? I’d love to have a PASS amp, but I don’t know if any of my speakers are sensitive enough.

[Ali Tait]

Guessing it will be fine unless you have a huge room and listen to Metallica at 11. Suspect you don't as you own these speakers. :-)

[hornucopia]

All SET fans should hear this I believe.

[hornucopia]

Someone reminded me I had this posted still.
Will 'warm it up' later, trying new Mariza CD through my Ocellia Calliopes.
sounding divine as always. (Both singer AND amp!)

[hornucopia]

I only get to use about 25% and it's loud.
But then, we're sto;; movement-challenged!
But if anyone's passing, can be heard utilising distancing.

[hornucopia]

Patience is a virtue -discuss?
Now sold,and awaiting collection.
Will be missed-it matches my Ocellia Calliopes well.(But they are for sale as well!)

[Lawrence001]

Patience indeed! Well done!/ [emoji2]

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