Help me ID some drivers in my custom 3-ways

Ruxton · 6th May 2012, 12:02 PM

Many years ago a mate of mine built some speakers which i was gifted some time ago. They're somewhere around 10yo and built from parts out of Jaycar & Altronics in Perth. I'm pretty sure at the time of purchase, the speaker I'm trying to id was being phased out.

About 4-5 weeks ago the left side started sounding different, i stripped the tweeters out and recapped that side as it sounded like all the high end was flattened. It didn't seem to improve, so I started taking the next run of speakers and trying to work out what they are.

That being said, here's my bohemoths, they weigh a tonne and sound like joy though can be a bit bright. Built from i think 24mm mdf (Baffle plate is double width @ 48mm) that was soaked in pva for weeks, braced to hell and back inside, a home on the back of each for a separate 12" sub o_O.

The upper 2 tweeters are Vifa D25-AG

The middle 2 i'm trying to id, they have no labeling anywhere.

The bottom 2 woofers i'd love to know more about they're 8" and lacking any kind of markings.

I'm still getting all apart and documenting, the crossover is setup as such:

L1 = 3.3mH, C4 = unknown, L2 = unknown. I may be missing components in there

The capacitors are all bipolar, so my symbols are incorrect in the drawing. The grounds all just run back together, so i didn't bother drawing it.

audiofan · 6th May 2012, 02:33 PM

Your mid could be a :

DynAudio D52AF

vacuphile · 6th May 2012, 02:50 PM

Midwoofers could be DynAudio or Morel.

Ruxton · 7th May 2012, 01:21 PM

Cheers, that definitely looks to be the one. Did some digging and found some old spec sheets, etc. and it all seems to line up.

Thanks for your help, now off on the journey to look for possible replacements

Charles Darwin · 7th May 2012, 01:33 PM

Dynaudio stopped selling bare drivers to us diyers some years ago after being bought out by TC Group. AFAIK they will still replace old faulty drivers but you will have to send in the dead ones.

audiofan · 8th May 2012, 01:58 PM

May be you can by a copy of your midrange made in china or india, there is a few company to make it

6th May 2012, 12:02 PM	#1
Ruxton diyAudio Member Join Date: Mar 2012	Help me ID some drivers in my custom 3-ways Many years ago a mate of mine built some speakers which i was gifted some time ago. They're somewhere around 10yo and built from parts out of Jaycar & Altronics in Perth. I'm pretty sure at the time of purchase, the speaker I'm trying to id was being phased out. About 4-5 weeks ago the left side started sounding different, i stripped the tweeters out and recapped that side as it sounded like all the high end was flattened. It didn't seem to improve, so I started taking the next run of speakers and trying to work out what they are. That being said, here's my bohemoths, they weigh a tonne and sound like joy though can be a bit bright. Built from i think 24mm mdf (Baffle plate is double width @ 48mm) that was soaked in pva for weeks, braced to hell and back inside, a home on the back of each for a separate 12" sub o_O. The upper 2 tweeters are Vifa D25-AG The middle 2 i'm trying to id, they have no labeling anywhere. The bottom 2 woofers i'd love to know more about they're 8" and lacking any kind of markings. I'm still getting all apart and documenting, the crossover is setup as such: L1 = 3.3mH, C4 = unknown, L2 = unknown. I may be missing components in there The capacitors are all bipolar, so my symbols are incorrect in the drawing. The grounds all just run back together, so i didn't bother drawing it.

6th May 2012, 02:50 PM	#3
vacuphile diyAudio Member Join Date: Apr 2011 Location: Right behind you.	Midwoofers could be DynAudio or Morel. __________________ Second law is your friend.

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6th May 2012, 02:33 PM	#2
audiofan diyAudio Member Join Date: May 2003 Location: quebec	Your mid could be a : DynAudio D52AF

7th May 2012, 01:21 PM	#4
Ruxton diyAudio Member Join Date: Mar 2012	Cheers, that definitely looks to be the one. Did some digging and found some old spec sheets, etc. and it all seems to line up. Thanks for your help, now off on the journey to look for possible replacements

7th May 2012, 01:33 PM	#5
Charles Darwin diyAudio Member Join Date: Nov 2009 Location: Birmingham, UK	Dynaudio stopped selling bare drivers to us diyers some years ago after being bought out by TC Group. AFAIK they will still replace old faulty drivers but you will have to send in the dead ones.

8th May 2012, 01:58 PM	#6
audiofan diyAudio Member Join Date: May 2003 Location: quebec	May be you can by a copy of your midrange made in china or india, there is a few company to make it