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7 x HH V800

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Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SMP Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2013 at 8:27pm
Originally posted by jbl_man jbl_man wrote:

Didnt the Rauch amps have that peculiar hedgehog type heatsink


Indeed a "Pinfin" designed by Pantechnic back in the 80's
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pin2Hot Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2013 at 11:42pm
As I remember it, when HH got into trouble Rauch was set up by someone called Jerry?

I believe he'd been involved in sales at HH, as I remember there being quite a slick marketing campaign.

It looks like a few different firms had a hand in the design and manufacture of their products, as in addition to C- Audio and Pantechnic I'm pretty certain Ben Duncan also had a hand in some of the designs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nachural Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2013 at 12:03am
Originally posted by SMP SMP wrote:

Incidentally they use a "Heat Exchanger called a "Pinfin" the only thing Phil Rimmer/Pantechnic did get right still basically the "Hitachi" Topology just uses a "Flatpak" called "HPAK" Hitachi 2SJ50 2SK135 Die in a different package.

Absolutely right, at one time in addition to selling modules Phil Rimmer would also sell you the Pin Fin heatsink. It was a fairly substantial aluminium casting and presumably the same one that was used in Rauch DVT’s.

it's all just cardboard and magnets really
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SMP Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2013 at 12:16am
yes BD got involved in development of the SRS SMPS though does not actually switch and yes again a fair few people involved at various points. It eventually became MST Rauch I sold them used them fixed them. no idea where Charlie Sapelsa went he was last owner of it P600 were great very light 2U package SMPS is nothing new
classTD by Labgruppen just a further development of the tech as are so many others
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Muckerbarnes1 Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2013 at 2:15am

Ooo. Hedge hog heatsinks. I also made a pattern ( yes, me) to cast heatsinks to keep our FET amps cool. ( lower RDs-on ect ) These made a noticeable difference to our 1450W/ch FET amps of the day, circa 1992. More grunt than anything we had tested. Dual die TO3's from Semi-lab.

Never seen inside a Rauch, but meester SMP you'll be happy with yer Matrix amps. They just work.

As posted before, Dave Collins (Austin Armstrong) tried to get me to go and play in Cambridge for a while to race tune his amps. I never went. Too busy. Dave was a great guy. Great days.



Edited by Muckerbarnes1 - 11 December 2013 at 2:20am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SMP Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2013 at 11:12pm
I will post some internals from my "Museum" of older amps sadly some are not readily available too far away in storage but a photo of my shed which used to be full with piles of Quad II's would have raised a few smiles instead they raised a fair few quid instead a few years back. Austin Amrstrong had a few of those racked up for Mons when the Turner racks were a bit lacking grunt for the job ok but never been a fan of "Highside" myself bloody zeners used to pop on them a lot. still have one somewhere a 4chx600W  with "Popped" Zeners of course. I do need to put on a "Thermal dynamics Hat" soonish to design an exchanger for some amps I intend to produce. I know zip about castings though but just a learning curve

Yes the Matrix arrived no chance to listen to right now maybe next few days will hook them up. do a comparison to Adyton XP3 & Rauch DVT300S & Turner grab a Labgruppen of a mate for reference Have to find a "Doo Doo" one for comparing it to junk got a C-Audio will do somewhere
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SMP Quote  Post ReplyReply Direct Link To This Post Posted: 12 December 2013 at 7:29pm


well well surprise surprise they are indeed not V800 let alone M900  but Avitec Beta 800's I hope nobody bid too high from here
amazing how some sellers either have not a clue or are a little bit dodgy  !!!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mhamplification Quote  Post ReplyReply Direct Link To This Post Posted: 12 December 2013 at 7:51pm
Originally posted by SMP SMP wrote:



well well surprise surprise they are indeed not V800 let alone M900  but Avitec Beta 800's I hope nobody bid too high from here
amazing how some sellers either have not a clue or are a little bit dodgy  !!!!

Thanks for letting me know I have been outbid now anyway
Even so I think 7 of these amps would have been  worth £120    If I had of won  a case would have to of been opened with Ebay for false description as they clearly are nothing like a V800 or in fact any H/H amp at all
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SMP Quote  Post ReplyReply Direct Link To This Post Posted: 12 December 2013 at 8:02pm
no worries this is one time where me being the "Anal" sod I am pays off still the "Feel the Bass" posse can kiss my A%*"  As I always say "People who think they know everything, make us that do look bad"

I wonder who is gonna up with this pile of crud go all the way to Sunderland to collect and be very disappointed?
guy selling is called David has a Yamaha PM3000C I would like to buy but not at his price. Perhaps will make an offer. Good job it has a picture or it may have turned out to be a Phonic!!!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 12 December 2013 at 8:17pm
Seeing that last picture reminds me that I still need a couple of capacitors, 15000uF 63v if anybody has any in an old dead amp, or tucked away somewhere! I can then resurrect a poorly PPX I have here.
100% Earth Moving Bass
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SMP Quote  Post ReplyReply Direct Link To This Post Posted: 12 December 2013 at 8:21pm
Originally posted by GAZ. GAZ. wrote:

Seeing that last picture reminds me that I still need a couple of capacitors, 15000uF 63v if anybody has any in an old dead amp, or tucked away somewhere! I can then resurrect a poorly PPX I have here.


I most likely have I have a horde of such things. 63V is a bit low for most of my uses PM me
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Buff Quote  Post ReplyReply Direct Link To This Post Posted: 12 December 2013 at 8:55pm
Originally posted by Pin2Hot Pin2Hot wrote:

As I remember it, when HH got into trouble Rauch was set up by someone called Jerry? 

I believe he'd been involved in sales at HH, as I remember there being quite a slick marketing campaign.

It looks like a few different firms had a hand in the design and manufacture of their products, as in addition to C- Audio and Pantechnic I'm pretty certain Ben Duncan also had a hand in some of the designs.

Jerry Mead and Ben Duncan did work together on amps. I think they used Hitachi mosfet. Ben was a big fan of mosfet at the time.

After Rauch - Jerry was planing to use the name Otis for his new amplifiers. Don’t think they made any.



Edited by Buff - 12 December 2013 at 9:18pm
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