PDA

View Full Version : Velleman 8020 Pre Amp ( updated )



mikeyb
05-01-2019, 11:10
Velleman 8020 Pre Amp that's been updated with the info gained on this page ...

http://www.hardwareanalysis.com/content/article/1826/

See the Schematic links for the changes made.

I believe this disconnects the +6db gain option but it doesn't need it anyway as it has plenty.

I bought it after I sold my Promitheus TVC passive pre and it made an immediate difference for the better, more dynamic, more impact but still has clarity and detail too.

For the money it's a great little pre amp, and you can try different valves of course, I have Seimens Mica 3's in it at the moment, but it will be supplied with the Valvo valves that it came to me with. ( I'm keeping the Siemens ;) )

A few little marks on it but nothing too noticeable in use, there is a little mark on the top edge of the fascia but only seen if you look closely.


£225 including postage within the UK.


https://uploads.tapatalk-cdn.com/20190105/fbaeab5d6532cbd6a6835eaa63dc3a62.jpg


https://uploads.tapatalk-cdn.com/20190105/acdc9027f12e4d20da39c787037d7813.jpg


https://uploads.tapatalk-cdn.com/20190105/0d58e5bfe89e2b5121ec4d0d0ad10276.jpghttps://uploads.tapatalk-cdn.com/20190105/a5f6f73f42a697372e680e7c29fb05f8.jpg

Firebottle
05-01-2019, 12:07
Nice little preamp - GLWS

mikeyb
05-01-2019, 12:13
Nice little preamp - GLWSIt is, was a nice little stop gap for me but I have my eye on something else as usual lol

Bigman80
05-01-2019, 12:23
GLWS Mikey,

Good price that.

mikeyb
18-01-2019, 14:13
Still for sale, happy to swap or part ex for similar size pre.

DAC/Pre considered too but must have a great Pre side, the DAC/Pres engineer tried so far haven't been great on Pre output.

Lawrence001
19-01-2019, 08:44
Nice pre Mike I had thought about this when one came up previously about a year ago in a rather tragic sale (is this the same one?).

Can I ask where in the article the reviewer lists the upgrades so they can be replicated? Did you do them yourself?
Thanks, Lawrence

mikeyb
19-01-2019, 08:55
Nice pre Mike I had thought about this when one came up previously about a year ago in a rather tragic sale (is this the same one?).

Can I ask where in the article the reviewer lists the upgrades so they can be replicated? Did you do them yourself?
Thanks, LawrenceIf you look on page 2 of the link I posted called powering it up, you'll see a schematic link that shows the changes made to improve the amp.

http://www.hardwareanalysis.com/content/image/11779/

Firebottle did the work for me.

I think it's the same one as you mentioned.

Cheers

Mike.

mikeyb
07-09-2019, 18:12
Right, this is back up for sale after I decided to keep it months ago. However I've done a deal for a new pre amp so this is surplus to requirements.

Won't be posted until the replacement arrives, which should be in a couple of weeks ( hopefully sooner [emoji3526] ).

This really does sound good driving my Primaluna power amp and you'll wonder how the hell can it be so cheap.

So, have a look, buy it and I promise you won't be disappointed.

mikeyb
08-09-2019, 08:19
Can't edit original post to adjust asking price.

£225 inc postage.

Macca
08-09-2019, 09:08
Can't edit original post to adjust asking price.

£225 inc postage.

I've edited it for you Mike.

mikeyb
08-09-2019, 09:10
I've edited it for you Mike.That's great, thanks [emoji3526]
I should also say that this is LESS than it cost me including doing the revision on the circuit.

struth
08-09-2019, 09:38
More than decent amp for money.. glws

mikeyb
08-09-2019, 11:31
More than decent amp for money.. glws

thanks, it certainly drives my £3500 power amp no problem and sounds great, it's taken a megabucks pre to replace it ;)

I'm just hoping having not heard the replacement that I like it :lol:

mikeyb
11-09-2019, 07:12
This is still here

mikeyb
12-09-2019, 21:48
New pre amp here tomorrow so make me an offer, you never know [emoji6]

Stormin'Norman
13-09-2019, 18:59
Hi Mike, could you furnish me with dimensions.
Thanks, Norman

Sent from my SM-G390F using Tapatalk

mikeyb
13-09-2019, 19:44
Hi Mike, could you furnish me with dimensions.
Thanks, Norman

Sent from my SM-G390F using TapatalkHi Norman,

Dimensions:

290 x 165 x 68mm / 11.4 x 6.5 x 2.7"

Hope that helps.

Mike.

mikeyb
14-09-2019, 11:21
Up she goes, again lol

mikeyb
15-09-2019, 11:57
Sunday bump [emoji6]

Stormin'Norman
16-09-2019, 22:13
As you're keeping the Siemens Micas, could you suggest some alternatives to the stock items. I'm not really up to speed on valve kit [emoji846]
Thanks

Sent from my SM-G390F using Tapatalk

mikeyb
17-09-2019, 06:57
As you're keeping the Siemens Micas, could you suggest some alternatives to the stock items. I'm not really up to speed on valve kit [emoji846]
Thanks

Sent from my SM-G390F using TapatalkHi Norman,

I have to admit I'm not up on valves/tubes either, I rely on reviews and advice from others.

I'm not averse to selling the Seimens valves but they're not cheap, I'm waiting to hear from the person I bought them from as I can't remember what I paid for them.

As soon as I know I'll let you know how much they would be with the Velleman.

Note: the Valvo tubes that came to me with the Velleman are pretty decent and are a decent stepup from cheapies. They were added to the pre by the previous owner. I don't think you'd be disappointed with them to start off with, then..... the sky's the limit with tube rolling.

Lawrence001
17-09-2019, 22:21
Valvos are usually pretty good.

Sent from my POT-LX1 using Tapatalk

mikeyb
18-09-2019, 15:46
Sold subject to payment