Results 1 to 10 of 10

Thread: 476be - Everest DD66000

  1. #1
    Senior Member
    Join Date
    Jul 2003
    Location
    Denmark
    Posts
    126

    476be - Everest DD66000

    Hi.

    do any of you know if the 476be will work in direkt mode?

    I am thinking of trying a QuickSilver horn mono AMP with a digital X-over (deqx-hdp5)
    and conect the AMP Direct to the 476.
    but I am afraid if the 476 is sensitive to the small "blop" some amps can give when power on.

    or am I better of using a higher powered tube AMP, and use the internal X-over?

  2. #2
    Dang. Amateur speakerdave's Avatar
    Join Date
    May 2003
    Location
    Northern California
    Posts
    3,573
    Quote Originally Posted by Brian DK View Post
    Hi.

    do any of you know if the 476be will work in direkt mode?

    I am thinking of trying a QuickSilver horn mono AMP with a digital X-over (deqx-hdp5)
    and conect the AMP Direct to the 476.
    but I am afraid if the 476 is sensitive to the small "blop" some amps can give when power on.

    or am I better of using a higher powered tube AMP, and use the internal X-over?
    I use a compression driver that has a 4" Be diaphragm, and I would never connect it directly to an amplifier. I use a passive high pass and dial in the woofers with a UREI 525, so that is one option. You could do the same thing with a digital low pass. I have in the past used a different electronic crossover and a protection cap for the treble, so that's another option. You can learn about protection caps in the UREI 5235 manual. And besides using a big tube amp (or a sand amp whose HF you like) you could find out the specifics about biamping that speaker. I expect there is some response tailoring in the HF part of the stock network. I know GT has coached someone here about that, but I don't think it has been posted.
    "Audio is filled with dangerous amateurs." --- Tim de Paravicini

  3. #3
    Senior Member
    Join Date
    Apr 2003
    Location
    Richmond Hill, Ont.
    Posts
    4,675
    I'd recommend that you do like Dave suggests, ( Bi-amp using the horns builtin passive network driven by a good horn amp & then use only the lowpass output of your favourite electronic crossover into a sturdy LF amplifier ).

    This will offer the most protection ( to those uber-expensive 476Be drivers ) as well as give a noticeable increase in system dynamics & clarity ).

    If you ( still ) feel the need for better HF micro-detail ( after the previous step is implemented ) try rolling different amps in & out of the HF portion of your setup.

    cheers <> Earl

    BTW, this is an area that Widget is well versed in ( & I think he's already laid out his thoughts on the matter around this forum ).

  4. #4
    Member jbljfan's Avatar
    Join Date
    Sep 2005
    Location
    Upper LH Corner, USA
    Posts
    99

    476Be Filter

    The horn mono/476Be is a very fine combination.
    http://www.audioheritage.org/vbullet...ht=#post350155
    Active systems since eighty three.

  5. #5
    Super Moderator yggdrasil's Avatar
    Join Date
    Dec 2004
    Location
    Våle, Norway
    Posts
    1,159
    I have run 476Be with a series cap for protection. Cap was large enough to be outside crossover frequency.

    Anyway - you do not need any high power amp for these drivers.
    Johnny Haugen Sørgård

  6. #6
    Senior Member
    Join Date
    Jul 2003
    Location
    Denmark
    Posts
    126
    Quote Originally Posted by yggdrasil View Post
    I have run 476Be with a series cap for protection. Cap was large enough to be outside crossover frequency.

    Anyway - you do not need any high power amp for these drivers.
    I know the driver is very sensitiv.
    the High power tube AMP is only if I use the build In X-over.

    and by High power I Think around 120-150w
    and my 700w Krell for the low end.

  7. #7
    Senior Member grumpy's Avatar
    Join Date
    Oct 2003
    Location
    SoCal
    Posts
    5,331
    I've heard the Passlabs XA30.n amp driving this transducer, with passive crossover...
    nothing was amiss.

  8. #8
    Super Moderator yggdrasil's Avatar
    Join Date
    Dec 2004
    Location
    Våle, Norway
    Posts
    1,159
    I was using a Nelson Pass Zen 9 (F3) which is 15 watt. This amp was not the limiting part of the setup.
    Johnny Haugen Sørgård

  9. #9
    Senior Member
    Join Date
    Jul 2003
    Location
    Denmark
    Posts
    126
    Quote Originally Posted by yggdrasil View Post
    I was using a Nelson Pass Zen 9 (F3) which is 15 watt. This amp was not the limiting part of the setup.
    I'm gonna need A bit more.
    15watt and the horns sensitivity at 96db
    wil make a sound presure at 108db

    And my Krell deliver 700w to the bottom.
    that will make arround 124db.

    the difference here will be to Big.

    I am guesing the amp for the top must be
    at least 100-150w.

  10. #10
    Administrator Mr. Widget's Avatar
    Join Date
    Apr 2003
    Location
    San Francisco
    Posts
    9,930
    Quote Originally Posted by Brian DK View Post
    I'm gonna need A bit more.
    15watt and the horns sensitivity at 96db
    wil make a sound presure at 108db

    And my Krell deliver 700w to the bottom.
    that will make arround 124db.

    the difference here will be to Big.

    I am guesing the amp for the top must be
    at least 100-150w.
    Only if you plan on listening at higher SPLs. In my DD66000 system I am not biamping and have 450w mono blocks... I almost never use more than 10watts per channel.


    Widget

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Jbl Everest Dd66000
    By ronaltronics in forum Lansing Product General Information
    Replies: 34
    Last Post: 06-04-2017, 12:45 PM
  2. Sub for Everest DD66000.
    By Brian DK in forum General Audio Discussion
    Replies: 194
    Last Post: 07-10-2016, 05:37 AM
  3. Everest DD66000
    By Brian DK in forum Lansing Product General Information
    Replies: 32
    Last Post: 10-20-2014, 11:32 AM
  4. EVEREST DD66000
    By Guido in forum Lansing Product General Information
    Replies: 295
    Last Post: 07-19-2009, 03:53 PM
  5. DD66000 Everest II
    By Techbot in forum System Information
    Replies: 2
    Last Post: 08-30-2006, 01:30 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •