View Full Version : WAD 300b Custom Clone Power Amp, David Coe built at AD Audio
WESTLOWER
23-07-2018, 16:08
WAD 300b Custom Clone Power Amp, David Coe built at AD Audio
£2,000
Well this is a very, very reluctant sale indeed.
I bought this beautiful amp from the builder, renowned Valve amp engineer, David Coe from AD Audio.
He built the 300b for himself as the bench mark for all Valve amps going through his workshop.
So this was his personal amplifier.
When I purchased it, I intended it to see me to the grave... (I had badgered David for a long time to sell it to me) At the time I had some super lovely KUDOS speakers, and quite frankly it was end game.
Truly magical.
Alas, I then did a bloody ridiculous thing, like you do when you have the system sounding right!.....
Along came the Vintage Tannoy itch!!!
The 300b with my Tannoy Monitor Gold speakers has stunningly good Mids and the High frequencies, but sad to say with the Tannoy drivers, the bass was left a tad wanting. So I went out and got myself a Radford. Which, as widely documented on AoS was the perfect partner for the Tannoys.
So that brings me to this point with the WAD 300b custom clone.
This is a unique opportunity to take custody of an Amp Considered by many to be Among the world's best power amps, the WAD 300b has an enviable reputation and has that truly authentic 300b sound along with enough drive for a wide range of speakers.
This particular example was built as one of a very limited run of just four clones in custom made polished stainless steel chassis.
Point to Point all Silver wiring through out and Components used are of the highest available, Black Gate capacitors for the main power supply, cathode bypass and decoupling duties along with oil filled ASC capacitors and Mundorf Tube Caps. Resistors are Kiwame and Shinkoh.
The amp has been converted to battery bias (new self charging batteries just added) and has had the dissipation reduced to run TJ Meshplate valves.
It will come with a matched quad of wonderful TJ Meshplate valves.
Compared to the original circuit it also has additional chokes fitted to the input stage for greater dynamics and Image stability. The Sound is utterly exquisite and the amp produces around 25 watts with the TJ Meshplates.
The amp uses Zero negative feedback.
The amp also has transformer taps for 4,8, 16 ohms.
The amp is in Tip-Top condition, with only the odd faint swirl of a polish mark if you stare deep enough into the polished Stainless Steel finish. It has very recently been fully checked over and serviced by David Coe.
I can't stress enough how special this Amp is. It was a privilege to own such a thing.
It weighs an absolute Tonne and I will not sell without a demo.
So I'd really say collection only from Barnet.
It is offered exclusively here on AoS for a limited time.
I will add some further pictures, under the hood etc. later as i'm on my work computer and the pictures are else where.
http://i.imgur.com/IclcSvj.jpg (https://imgur.com/IclcSvj)
Under the hood ...
http://i.imgur.com/4oCjW2F.jpg
No No no! You can't sell this Adam. This is a priceless piece that can't be bettered anywhere remotely near the monies you are looking for.
I've had this amp in my home driving the Kudos which I bought from Adam. We did an amp swap at some point and this 300b simply took my breath away. And the finish of this amp - well honestly it would not look out of place in a high end art gallery.
@Adam, feel free to borrow the Kudos for the demonstration. Really show this amp performing at its best.
WESTLOWER
24-07-2018, 00:00
Appreciate your speaker loan offer for the demo Edward.
Unfortunately I have to sell her, I can’t have it not being used, it’s too good for that and
I need to recover some money. It was not an easy decision to list.
But thanks for the words.
AD Audio
24-07-2018, 09:21
I, too, was very reluctant to sell this lovely amp. Apart from being part of a very limited run of 4 (one later being copper plated which ruined the look in my view) it was always the sound that was so seductive. As Adam says, there's only so many amps you can have in a house and the worst of all is an amp of these capabilities not being used and enjoyed.
Apart from that, that Tannoy virus is clearly turning into a major epidemic as I too was recently infected which meant a further change in my amp line up. What starts as a minor itch quickly converts into a raging fever, a racing mind trying to work out what amps are optimal for these speakers. Government Health Officials need to get on top of this serious health risk before we are all chasing the same pool of available Radfords!
Lovely work as ever David,and good luck with the sale to the OP,you shouldn't need any though with such a beautiful amp.
Bit OT,but regarding amps for big old Tannoys David,you could do far worse than staying in the WAD design family and cloning a WAD Kit6550.I run my Berkeleys with a heavily upgraded one and they sound superb on the end of it.40Watts or thereabouts of Push/Pull does the business in my book.
WESTLOWER
24-07-2018, 13:17
WAD 300b Custom Clone Power Amp, David Coe built at AD Audio
£2,000
Well this is a very, very reluctant sale indeed.
I bought this beautiful amp from the builder, renowned Valve amp engineer, David Coe from AD Audio.
He built the 300b for himself as the bench mark for all Valve amps going through his workshop.
So this was his personal amplifier.
When I purchased it, I intended it to see me to the grave... (I had badgered David for a long time to sell it to me) At the time I had some super lovely KUDOS speakers, and quite frankly it was end game.
Truly magical.
Alas, I then did a bloody ridiculous thing, like you do when you have the system sounding right!.....
Along came the Vintage Tannoy itch!!!
The 300b with my Tannoy Monitor Gold speakers has stunningly good Mids and the High frequencies, but sad to say with the Tannoy drivers, the bass was left a tad wanting. So I went out and got myself a Radford. Which, as widely documented on AoS was the perfect partner for the Tannoys.
So that brings me to this point with the WAD 300b custom clone.
This is a unique opportunity to take custody of an Amp Considered by many to be Among the world's best power amps, the WAD 300b has an enviable reputation and has that truly authentic 300b sound along with enough drive for a wide range of speakers.
This particular example was built as one of a very limited run of just four clones in custom made polished stainless steel chassis.
Point to Point all Silver wiring through out and Components used are of the highest available, Black Gate capacitors for the main power supply, cathode bypass and decoupling duties along with oil filled ASC capacitors and Mundorf Tube Caps. Resistors are Kiwame and Shinkoh.
The amp has been converted to battery bias (new self charging batteries just added) and has had the dissipation reduced to run TJ Meshplate valves.
It will come with a matched quad of wonderful TJ Meshplate valves.
Compared to the original circuit it also has additional chokes fitted to the input stage for greater dynamics and Image stability. The Sound is utterly exquisite and the amp produces around 25 watts with the TJ Meshplates.
The amp uses Zero negative feedback.
The amp also has transformer taps for 4,8, 16 ohms.
The amp is in Tip-Top condition, with only the odd faint swirl of a polish mark if you stare deep enough into the polished Stainless Steel finish. It has very recently been fully checked over and serviced by David Coe.
I can't stress enough how special this Amp is. It was a privilege to own such a thing.
It weighs an absolute Tonne and I will not sell without a demo.
So I'd really say collection only from Barnet.
It is offered exclusively here on AoS for a limited time.
I will add some further pictures, under the hood etc. later as i'm on my work computer and the pictures are else where.
http://i.imgur.com/IclcSvj.jpg (https://imgur.com/IclcSvj)
Under the hood ...
http://i.imgur.com/4oCjW2F.jpg
Lovely work as ever David, and good luck with the sale to the OP,you shouldn't need any though with such a beautiful amp.
Thanks Paul.
I do nice coffee and maybe a biscuit or 2 on the Demo.
WESTLOWER
26-07-2018, 10:04
Sweltering Bump for this special Amplifier
flapland
27-07-2018, 16:11
The WAD 300b PP interstage is a great design especially if worked on by David who is something of a expert with this design.
I know as I have a very similar designed one which has had similar work done by David. Its sadly not shinny like this one mind but it now has courstey of lordmortlock a set of mesh plate 300b's.
Someone is going to be very happy with this amp.
WESTLOWER
27-07-2018, 20:55
Cheers Paul, you right it’s a fantastic Amplifier.
Enjoy the meshplates! They are a joy in these amps!
ovlov854
28-07-2018, 21:21
WOW! Adam what a fantastic piece of kit
Even if this sounds only half as good as it looks...........:yesbruv:
WESTLOWER
28-07-2018, 22:57
WOW! Adam what a fantastic piece of kit
Even if this sounds only half as good as it looks...........:yesbruv:
Cheers Martin
It actually sounds twice as good as it looks!!
It’s special !
WESTLOWER
30-07-2018, 10:03
Cheers Martin
It actually sounds twice as good as it looks!!
It’s special !
Bump on the wonderful 300b before it is put on other classifieds
It’s a special amplifier
ovlov854
31-07-2018, 08:46
Cheers Martin
It actually sounds twice as good as it looks!!
It’s special !
Iwishiwishiwishiwishiwish......................... ....:drool::drool::drool::drool:
That looks extraordinary... I bet it sounds equally great!!
WESTLOWER
01-08-2018, 08:00
That looks extraordinary... I bet it sounds equally great!!
Cheers Stephen
Well as you can imagine being a very very good Valve engineer's personal bench mark amp,
it's just outstanding in every way..
Needs more piccies.
Can't really see it properly.
WESTLOWER
01-08-2018, 11:23
Needs more piccies.
Can't really see it properly.
Ok, I'll upload some more when I can take a few.
I thought the photos were sufficient I must say.
but I will add more.
ovlov854
02-08-2018, 09:28
Needs more piccies.
Can't really see it properly.
Ok, I'll upload some more when I can take a few.
I thought the photos were sufficient I must say.
but I will add more.
Your pics are fine Adam...............
BUT WE NEED MORE TO DROOL AND SLAVER OVER !! :please::please::please:
WESTLOWER
02-08-2018, 10:03
Your pics are fine Adam...............
BUT WE NEED MORE TO DROOL AND SLAVER OVER !! :please::please::please:
Ha! Will do, i'm travelling for work for a few days, but will do.
The best darn 300b Push Pull amplifier out there, is still available.
It's exclusively advertised here on AoS for a short while longer.
WESTLOWER
02-08-2018, 11:34
Your pics are fine Adam...............
BUT WE NEED MORE TO DROOL AND SLAVER OVER !! :please::please::please:
Actually I do have 3 more here on my phone, very difficult to photograph,
1. it's basically a mirror
2. I have an iPhone
3. I'm shit at photography!
4. Room is in chaos
https://i.imgur.com/Y6iLv5Z.jpg
https://i.imgur.com/AsHtdMC.jpg?1
https://i.imgur.com/UHsVEtv.jpg?1
https://i.imgur.com/PZtjeyt.jpg
Apologies for the close up of the crotch !
WESTLOWER
02-08-2018, 12:30
Needs more piccies.
Can't really see it properly.
Phillip
More pictures added...
Phoooar , sexy .
Sent from my iPhone using Tapatalk
https://i.imgur.com/PZtjeyt.jpg
Apologies for the close up of the crotch !
you know what they say, big valves,small.... :lol:
WESTLOWER
04-08-2018, 22:21
The best 300b goodness still available.
WESTLOWER
07-08-2018, 08:37
reluctant price reduction, £1900
consider delivery within reasonable mileage.
WESTLOWER
10-08-2018, 10:05
reluctant price reduction, £1900
consider delivery within reasonable mileage.
Weekend bump. Price Reduction... now £1850....
I need to rebalance the financial books!
delivery within reasonable mileage, although would prefer to demo and buyer collection.
WESTLOWER
15-08-2018, 08:34
this wonderful unique 300b is still here
WESTLOWER
22-08-2018, 13:15
300b with wonderful mesh plate tubes..
AD Audio
22-08-2018, 15:33
Amazed it's still available. It's been pitched against the best 300bs around from Valve Amplification Company (VAC) and others and seen them all off! But the VAC amp definitely out-blinged it! See photo below!
Sent from my ONEPLUS A5000 using Tapatalk
https://uploads.tapatalk-cdn.com/20180823/933ffb8f4513b1713b93e7ca313378c8.jpg
WESTLOWER
26-08-2018, 12:18
The last lull of the Summer is coming to an end.
This wonderful 300b Is still available. £1850
Demo and pick up preferred but can deliver within reasonable!
WESTLOWER
01-09-2018, 19:14
Been asked for a couple of more pictures
Had this back in the system and it’s incredible..
The summers over
£1850
https://i.imgur.com/O9keIoV.jpg
https://i.imgur.com/wctIgCA.jpg
https://i.imgur.com/FV72j4f.jpg
A piece of quality work that amp. Worth the price too.
WESTLOWER
01-09-2018, 19:30
A piece of quality work that amp. Worth the price too.
Cheers Grant, it’s literally a one off.
Any demo welcome. It’ll knock you out with it’s beautiful sound quality..
I had this very amp in my system for several weeks and remember it fondly. Bags of musicality, great tone, grips the music and presents it on a silver plate with much grace, pace and speed.
It send shivers up my spine just remembering this amp. As Grant says - quality.
Wakefield Turntables
01-09-2018, 20:00
Phoooar , sexy .
Sent from my iPhone using Tapatalk
Amp or crotch ?? :ner:
Amp or crotch ?? :ner:
[emoji23] funny boy
Sent from my iPhone using Tapatalk
Now if I could just get the better half to downsize our property, it would be MINE. Good luck.
WESTLOWER
02-09-2018, 00:04
Been asked for a couple of more pictures
Had this back in the system and it’s incredible..
The summers over
£1850
https://i.imgur.com/O9keIoV.jpg
https://i.imgur.com/wctIgCA.jpg
https://i.imgur.com/FV72j4f.jpg
Thanks for the nice words chaps.
£1850 it’s yours!!
moodybuilder
03-09-2018, 06:32
Can't believe it's not gone yet Adam seriously thinking myself
Regards phil
WESTLOWER
03-09-2018, 21:51
Hi Phil, I’d personally deliver it and you can buy me a pint!
I’m amazed it’s still about and it’s been on duty in the system this week.
It’s just incredible
WESTLOWER
05-09-2018, 22:18
World class 300b up!
Well Having heard David s own dac this week at his own home when collecting my brilliantly serviced/ upgraded A/I amp I can imagine how good this 300b is.
Well worth an audition if you have the brass I would have thought especially as I hear Adam makes the best coffee in the business !
WESTLOWER
10-09-2018, 14:00
Thanks for the nice words chaps.
£1850 it’s yours!!
Final reduction before I list on other sites.. £1800.
For this special
300b amp with mesh plate valves..
Pick up or delivery (within reason)
WESTLOWER
14-09-2018, 09:37
Final reduction before I list on other sites.. £1800.
For this special
300b amp with mesh plate valves..
Pick up or delivery (within reason)
I have been asked if the Amp will take any 300b Valves?...
YES it will, it can also be adjusted to give more output with other 300b valves that require this.
Also, the 2 knobs on the top of the amp are Humbuckers and one simply adjusts for zero Hum, once set thats it for a long time.
It's also Auto Biasing, so no need to get your meter out or anything technical. Simple!
https://i.imgur.com/mCjWNhF.jpg
https://i.imgur.com/YbvOqlx.jpg
WESTLOWER
18-09-2018, 10:45
I have been asked if the Amp will take any 300b Valves?...
YES it will, it can also be adjusted to give more output with other 300b valves that require this.
Also, the 2 knobs on the top of the amp are Humbuckers and one simply adjusts for zero Hum, once set thats it for a long time.
It's also Auto Biasing, so no need to get your meter out or anything technical. Simple!
https://i.imgur.com/mCjWNhF.jpg
https://i.imgur.com/YbvOqlx.jpg
https://i.imgur.com/BU5mukg.jpg
WESTLOWER
22-09-2018, 09:02
Saturday 300b bump
WESTLOWER
27-09-2018, 21:17
Bump
WESTLOWER
03-10-2018, 14:58
bump
djdstone
07-10-2018, 08:22
Glorious
WESTLOWER
09-10-2018, 10:56
Been asked for a couple of more pictures
Had this back in the system and it’s incredible..
The summers over
£1800
https://i.imgur.com/O9keIoV.jpg
https://i.imgur.com/wctIgCA.jpg
https://i.imgur.com/FV72j4f.jpg
LAST PRICE REDUCTION
£1700 Delivered within reason, or demo and pick up.
this is full of Black Gates! and other exotica, comes with a spare set of 300b valves as well as the gorgeous Mesh Plates currently on duty.
I don't know what else to say!
djdstone
09-10-2018, 12:56
Must resist!
WESTLOWER
10-10-2018, 13:14
Must resist!
go on! you know it makes sense! :eyebrows:
djdstone
10-10-2018, 18:41
Might have the same problem as I’m using Tannoy Berkeleys?
WESTLOWER
11-10-2018, 08:37
LAST PRICE REDUCTION
£1700 Delivered within reason, or demo and pick up.
this is full of Black Gates! and other exotica, comes with a spare set of 300b valves as well as the gorgeous Mesh Plates currently on duty.
I don't know what else to say!
UP
AD Audio
11-10-2018, 13:51
A client of mine who was round today, who knows the amp says it's an absolute gift for that price, and if he didn't already have two amps, would snap it up!
Sent from my ONEPLUS A5000 using Tapatalk
WESTLOWER
13-10-2018, 08:18
https://i.imgur.com/mCjWNhF.jpg
https://i.imgur.com/YbvOqlx.jpg
this wonderful 300b pp power amp is now £1700
Delivered within reason or collect this is a bargain
WESTLOWER
17-10-2018, 08:29
this wonderful 300b pp power amp is now £1700
Delivered within reason or collect this is a bargain
Stunning caps inside the amp, these big Black Gates "Heart of Muse", I've been advised these will cost ~£1k separately.
Which makes the amp even more desirable.
This really should not still be here!
ovlov854
21-10-2018, 10:52
Bump for this fabulous amp...........wish my speakers had sold. :violin:
:mex::mex:
Riislingen
21-10-2018, 22:33
Oh man. Had I been back in Europe with slightly more sensitive as speakers, I would have gone for this in a heartbeat. Comon someone, end this misery already.
Sent from my iPhone using Tapatalk
WESTLOWER
21-10-2018, 23:44
Cheers chaps, indeed, a bit of a mystery to me how this is still here! I think listing it over the summer wasn’t wise due to folk seem to lay off hifi purchases.
Some interest and a couple of demos coming up over the coming week. I can’t tell you how many times I’ve thought about keeping this amplifier, even for another system in the future. I suspect it will be nabbed soon.
WESTLOWER
27-10-2018, 17:17
Sold
djdstone
28-10-2018, 19:15
Excellent
Sold
I do hope the buyer will post here with his experiences on this world class amp.
Sad to see this amp go Adam. I remember it fondly - it does something magical.
flapland
29-10-2018, 18:26
Someone is for a treat. Love my WAD based 300b also fettled by David.
AD Audio
29-10-2018, 18:46
I've heard the new owner already loves it, so I'm glad it's gone to a good home!
David
AD Audio
29-10-2018, 19:53
Someone is for a treat. Love my WAD based 300b also fettled by David.Glad your amp is still performing well Paul and hope all else is good!
David
Sent from my ONEPLUS A5000 using Tapatalk
flapland
30-10-2018, 21:26
Thanks David, all is well but will be in touch re a bit of work in the New Year.
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