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Matamp Analogue Crossovers |
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oldskool 
Old Croc 
Joined: 04 October 2010 Location: Essex Status: Offline Points: 2097 |
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 Topic: Matamp Analogue CrossoversPosted: 14 August 2013 at 1:59pm |
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Have re-posted in this section to see if anybody can give me some more input about these Matamp Crossovers.
More of the Concert System cabs are with Tony and we have another batch on the way to us so no new boxes to look at yet. Anyway went and dug the Matamp analogue crossovers that will be controlling the rig out of the lock up yesterday. Got the top one from Ian (JBL Man), middle one from Ken (knet94) and the bottom one has just been lying around here for about ten years. Noticed for the first time that the bottom one has some fluted knobs. They look fine on the unit but not sure they are original.
Have had hardly any time to really look inside these, wonder what the link connectors are for on the left of the rear panel?
This looks like unbalanced ins and outs which I find quite surprising even though my SuperNova has unbalanced outputs. This could be a minor pain in the backside as a result.
This one has LD after the serial number (does this mean Line Drivers?) Looks like we could have balanced outputs which is a step in the right direction.
So although I would dearly love to keep an analogue signal chain it might not be possible if the amp racks are far away in the case of two of these crossovers. We will be using an ASS processor/filter too to control the subs at the beginning of this thread, that should take care of distance between FOH/Decks and the amp racks. Looks like we need to have a look at BSS/KT or even Lake to get a nice sounding unit. No point compromising at this stage of the game. So does anybody have any further info on these crossovers? Let the debate begin and all comments welcome.
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Politics is the art of looking for trouble, finding it everywhere, diagnosing it incorrectly and applying the wrong remedies
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TONY.A.S.S.
Old Croc
Joined: 21 February 2007 Location: United Kingdom Status: Offline Points: 6867 |
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Posted: 14 August 2013 at 5:56pm |
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Matt only made one series of this crossover, I think the only difference would be batch numbers, As well as fluted knobs, the bottom unit also looks like a slightly Silver. When I had mine I had 6db line drivers put on every output channel so that I could drive amps like Crown.
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diffuse371
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Joined: 17 March 2013 Status: Offline Points: 5 |
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Posted: 26 October 2013 at 2:53am |
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saved my skin these photos appearing! I've been changing mine to balanced outputs and hadn't remembered the location of input on filter boards... would never have found it myself.
anyways, balanced outputs required rewiring the power supply to have a centralised ground point for which i used a simple plastic screw terminal commoning block. Shield of outputs to chassis. +ve normal -ve added 100uf electrolytic caps with negative pin to a 93ohm resistor to match output impedance of line driver circuit then to my new ground. On my power amplifiers i have fitted 10K:10k transformers on the line inputs. (including 2 Quasar 1000s) Great crossover and no equivalent on market today really. |
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diffuse371
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Joined: 17 March 2013 Status: Offline Points: 5 |
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Posted: 26 October 2013 at 3:02am |
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the link connectors are to connect signal common to chassis and earth.
this is often disconnected to as an unsafe fix to solve hum problems. or as with some Matamp products connected via a capacitor |
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BASSHORSE
Young Croc 
Joined: 19 September 2007 Location: wolverhampton Status: Offline Points: 1159 |
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Posted: 07 December 2013 at 2:06pm |
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just picked me one up...i think it sounds sweet!!,,just what i was after,.analog 4way stereo crossover..ticks all the boxs for me!..my search is over!
 http://www.ebay.co.uk/itm/Professional-2-to-4-way-stereo-electronic-crossover-/251387339490?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWNX%3AIT&nma=true&si=%252BrSuWax%252BatrapJaB4N9w%252BWwrQu8%253D&orig_cvip=true&rt=nc missed this atc thow..as anybody ever heard one? http://www.ebay.co.uk/itm/ATC-Crossover-ex-SARM-Studio-West-/200993803077?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWAX%3AIT&nma=true&si=%252BrSuWax%252BatrapJaB4N9w%252BWwrQu8%253D&orig_cvip=true&rt=nc Edited by BASSHORSE - 07 December 2013 at 2:07pm |
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TONY.A.S.S.
Old Croc
Joined: 21 February 2007 Location: United Kingdom Status: Offline Points: 6867 |
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Posted: 07 December 2013 at 2:20pm |
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I had the ATC, it was designed by Tim Issacs I believe who was at ATC in the early days. This was bought direct from them to drive the 3 way ATC studio Monitors I had just built. It later formed the basis of one of the first SMS's that EAW used.
It primary function was Studio work, so it was a very high spec.
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burningbush
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Joined: 25 May 2009 Location: Pictland Status: Offline Points: 5885 |
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Posted: 07 December 2013 at 2:51pm |
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Pretty sure you need to hand that over to Paul Axis. He needs it to drive the valve system and will maybe swap with you.
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music is the message
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BASSHORSE
Young Croc
Joined: 19 September 2007 Location: wolverhampton Status: Offline Points: 1159 |
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Posted: 07 December 2013 at 4:34pm |
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fair play tony,.it was propbably a bit too much quality for the rest of my rig to be honest,,but a mate ov mine buys a lot a high end hi gear & says look out for ATC stuff as it's probably the best your going to get,. top1 for the extra info on it,.it's got your name all over it t,.i wonder what the crossover points are? .im more than happy with the matamp thow
 enjoy tony!  p.s..was that aimed at tony or me burning bush  Edited by BASSHORSE - 08 December 2013 at 8:36am |
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Dub Specialist Sound
Old Croc
Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4871 |
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Posted: 07 December 2013 at 4:34pm |
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dam basshorse that sneaked thu my radar man..nice!
yu prob woundt av got it for that price if he had put Matamp in the decribstion..haha good deal man good on ya... haha and yes Axis-sound allways looking for Vintage gear...
Edited by Dub Specialist Sound - 07 December 2013 at 5:41pm |
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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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BASSHORSE
Young Croc
Joined: 19 September 2007 Location: wolverhampton Status: Offline Points: 1159 |
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Posted: 08 December 2013 at 8:21am |
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easy dub spesh,.hope yume good bro
 ,.yep
it was a bargain at that price mate,.perfect for what i want,,only
tryed it out on me monitors so far but im likein the sound &
function ov it,..here a couple ov pics ov her     job dun
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BASSHORSE
Young Croc
Joined: 19 September 2007 Location: wolverhampton Status: Offline Points: 1159 |
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Posted: 08 December 2013 at 9:37am |
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here's another vintage bargain i had last week dub spesh,.
another minta! 47quid   Edited by BASSHORSE - 08 December 2013 at 9:39am |
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Dub Specialist Sound
Old Croc
Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4871 |
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Posted: 08 December 2013 at 10:28am |
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Yea basshorse or good mi bro , very nice too man yu picked up some super deals there man fairplay to ya...
you got eyes of an eagle on that e-bay
 thanks for share (teaser )...very very nice! in great condtion too...Edited by Dub Specialist Sound - 08 December 2013 at 11:13am |
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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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