Isophon P30/37/10 + DHB 6/2-10 drivers - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 18th January 2011, 05:14 AM   #1
Jamh is offline Jamh  United States
diyAudio Member
 
Jamh's Avatar
 
Join Date: Dec 2003
Location: sacramento
Default Isophon P30/37/10 + DHB 6/2-10 drivers

Has anyone done anything with these german drivers? I have them now in my possession and was thinking of doing something with them.

Some info:

Isophon P30/37/10: 40-8000 Hz, VA 12.5, resonance 45 Hz, 4 Ohm (from the excellent Isophon vintage site).

Isophon DHB 6/2/10 (a three driver into one): 2000-16000Hz, VA (2/12.5 not sure on my german here).

They were quite pricey for 1959 (a complete speaker around 600 DM / $150 US dollars in '59).
Attached Images
File Type: jpg P30.jpg (12.4 KB, 242 views)
File Type: jpg DHB.jpg (9.1 KB, 214 views)
  Reply With Quote
Old 18th January 2011, 05:16 AM   #2
Jamh is offline Jamh  United States
diyAudio Member
 
Jamh's Avatar
 
Join Date: Dec 2003
Location: sacramento
Do they need a fieldcoil transformer?
  Reply With Quote
Old 20th January 2011, 07:06 AM   #3
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
Quote:
Originally Posted by Jamh View Post
Do they need a fieldcoil transformer?
I have a set of these I was given some years ago. I stripped them out of the rubbish cabs they came in but they were working when I removed them by just cutting the internal cables and they needed no feild coil power; the magnets are alnico IIRC. The xover consisted of the cap you can see on the back of the MF/HF assembly. <- I never knew what the model number of it was before, so thanks, maybe I can find them a new home now.
  Reply With Quote
Old 20th January 2011, 09:11 AM   #4
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
I too have some of those here -- and i have friends using a set in only the original fibreboard plug into a box enclosure (a scan of the accompanying manual). Brett is correct that they are AlNiCo.

I would call them quite musical but somewhat coloured.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 20th January 2011, 11:34 AM   #5
diyAudio Member
 
Steerpike's Avatar
 
Join Date: Jan 2006
Location: Johannesburg, South Africa
The technical documentation is here:
Isophon Archiv - Katalog Download

I think the "Fabrikations-Programm 1958" book will be the one you want.
__________________
Steerpike's Toybox
  Reply With Quote
Old 20th January 2011, 02:37 PM   #6
Jamh is offline Jamh  United States
diyAudio Member
 
Jamh's Avatar
 
Join Date: Dec 2003
Location: sacramento
My plan is to make them powered. I'm thinking these might be a good match for a natural color as opposed to tubes:

15W pure sound Class A stereo amplifer PCB Hiraga

Another idea is to use 2 amps per cabinet, one for the lows and one for mid/highs. And who knows, maybe move the crossover to a htpc.. But I'll start simple.
  Reply With Quote
Old 20th January 2011, 06:20 PM   #7
Jamh is offline Jamh  United States
diyAudio Member
 
Jamh's Avatar
 
Join Date: Dec 2003
Location: sacramento
Quote:
Originally Posted by planet10 View Post
I too have some of those here -- and i have friends using a set in only the original fibreboard plug into a box enclosure (a scan of the accompanying manual). Brett is correct that they are AlNiCo.

I would call them quite musical but somewhat coloured.

dave
Thank you for this manual. BTW, the 12ftx12ft baffle! How funny! I guess the point is to stay away from sealed volumes.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
10 x Elna Cerafine 10,000uf 63V capacitors NOS arfer Swap Meet 18 23rd February 2012 09:03 PM
Coral Flat-10 (Beta Look-Alike) 10&quot; Fullrange Drivers thetubeguy1954 Full Range 37 20th August 2011 12:47 PM
Interest check: Gershman GA-10 10" fiberglass woofers (NEW) Hogwild Swap Meet 1 8th October 2010 02:22 PM
Variable 10-14Volt 10-15A BUCK requlator sivan_and Power Supplies 15 27th May 2006 03:20 AM
FS: Isophon DHB 6/2 -10 vintage mid-tweeter assembly Andypairo Swap Meet 3 23rd May 2004 10:15 AM


New To Site? Need Help?

All times are GMT. The time now is 07:01 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2