EV driver info help - diyAudio
Go Back   Home > Forums > Live Sound > PA Systems

PA Systems A forum for discussion of all parts of a sound reinforcement or DJ system: loudspeakers, mixers (desks) etc.

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 April 2013, 11:07 AM   #1
diyAudio Member
 
Join Date: Aug 2003
Location: Calgary on the Bow
Default EV driver info help

am looking for an EV driver with a two inch diaphragm and a one inch exit. What is the difference between an EV DH2 with the cup removed and an EV DH2MT and an EV DH2AMT" I need a standard one inch screw on snout with a one inch exit ID. So which one do I get for smooth response? There is also the DH2A the DH2AS1 It is very confusing. Thanks for the EV for dummies cheat sheet. Best regards Moray James.
__________________
moray james
  Reply With Quote
Old 19th April 2013, 02:31 PM   #2
JMFahey is offline JMFahey  Argentina
diyAudio Member
 
JMFahey's Avatar
 
Join Date: Mar 2009
Location: Buenos Aires - Argentina
All DH2 variants seem to be the same basic magnet and diaphragm, with different "exit" (adapters/mounting) options.
Actual frequency response plots are quite similar, if not the same.
Remember they suggest their active equalization for flat response.
  Reply With Quote
Old 20th April 2013, 01:31 AM   #3
diyAudio Member
 
Join Date: Aug 2003
Location: Calgary on the Bow
Thanks JMFahey. I am trying to find out if a DH2 with a nose cup (short or long) is the same driver as a DH2AMT? The DH2AMT has a standard threaded 1 3/8" threaded snout with a one inch exit. The DH2 has a nose cup (short or long) and it is a bolt on with a 1.94" throat. So is the DH2 simply an AMT with and additional expansion flange and a cup to cover the adapter up? Thanks for the help. Best regards Moray James.
__________________
moray james
  Reply With Quote
Old 27th April 2013, 02:37 AM   #4
diyAudio Member
 
Join Date: Nov 2007
Quote:
Originally Posted by moray james View Post
Thanks JMFahey. I am trying to find out if a DH2 with a nose cup (short or long) is the same driver as a DH2AMT? The DH2AMT has a standard threaded 1 3/8" threaded snout with a one inch exit. The DH2 has a nose cup (short or long) and it is a bolt on with a 1.94" throat. So is the DH2 simply an AMT with and additional expansion flange and a cup to cover the adapter up? Thanks for the help. Best regards Moray James.
Not sure if any of this will help but two things;
-EV made the dh3 which was a 1" threaded driver... I believe 2" diaphragm. Was normally used as a supertweeter, had higher cutoff and lower power handling, etc, maybe that will be something that will fit your needs?
-The "MT" was denoting manifold technology, and the reason they used the 1" screw was to screw 4 of those drivers onto a manifold which went onto a 2" exit horn (see MTH-4?) The screw arrangement was needed to get the spacing closer for mounting the drivers on the manifold. But I cant concretely substantiate they are exactly the same as the longer snouted models...
  Reply With Quote
Old 1st May 2013, 03:01 AM   #5
diyAudio Member
 
Join Date: Aug 2003
Location: Calgary on the Bow
Thanks Airguitarchamp: yes the DH3 is a smaller diaphragm (1.25" dia.). I am looking for at least a two inch driver as I would like as low a crossover as possible so the DH1A is actually even more attractive from that point of view. Thanks a lot for your input. These are old drivers now still very high performance but old never the less so I don't imagine there are a lot of people running them now. Best regards Moray James.
__________________
moray james
  Reply With Quote
Old 1st May 2013, 04:59 AM   #6
diyAudio Member
 
Join Date: Jan 2010
Location: Manitoba
Moray:

Have you considered the EV DH1506? That seems to meet all your criteria: 2" diaphragm, 1" throat (with 1-3/8-18 male threaded end), and can be crossed quite low: 500 Hz. min., 800 Hz. recommended. Overall, it specs out quite similar to DH1A (which has a 1.94" throat dia. b.t.w.). DH1506 seems to be quite a bit scarcer than DH1A; same goes for replacement diaphragms. I can send you a data sheet if you need.

Wilf
  Reply With Quote
Old 2nd May 2013, 07:17 PM   #7
diyAudio Member
 
Join Date: Aug 2003
Location: Calgary on the Bow
W_oswald: thank you for your reply. Yes the DH 1506 is on the list but as you mentioned more DH2 than 1506 are available. There is also a DH 1506 HP (high performance) more rare still. The 1506 that you do see are more expensive. and it looks like the 1506 is just a little smoother but not by a lot.
I ended up buying a pair of DH1A a few days ago for a very good price. These are 3 inc diaphragms and yes your are correct nominal 2" exit actually 2.94" exit. How ever if you remove the nose cup extender you revert back to a 1.4" bolt on so you get some versatility there and lots of 1.4" horns to play with. These are monsters weighing in at 23.5 lbs each, that's a big tweeter.
For the kind of money that DH1506 and even clean DH2 go for I think I will keep an eye open for some used or perhaps even new Beyma drivers. Beyma have some very fine looking drivers with flat smooth and extremely extended response (both directions). For now I think that the DH1A will make a fine reference and I expect that when properly set up will prove very hard to beat. Bonus is that the EV parts are NA sourced and all the revenue even of used sales stays at home and I like that.
Thank you to those who have responded to my post. Best regards Moray James.
__________________
moray james
  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
Anyone know about this EV driver homemade Full Range 7 14th January 2011 11:28 PM
6n6p or 6P14P-ev for driver nightanole Tubes / Valves 11 30th August 2010 04:07 PM
Looking for info on the EV 205 4" driver sdep777 Full Range 0 14th September 2009 02:59 AM
Looking for: EV 1823m driver Matte Swap Meet 1 9th September 2005 06:11 PM


New To Site? Need Help?

All times are GMT. The time now is 04:51 AM.


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