Speaker Asylum

RE: Over 6 months of waiting, my cabinet has arrived.

162.71.241.254

fantja

In Reply to: RE: Over 6 months of waiting, my cabinet has arrived. posted by akltam on June 28, 2014 at 09:21:22

Nice! Alan.

tell us about your project and the drivers that will live in their 'home'.

Follow Ups:

RE: Over 6 months of waiting, my cabinet has arrived. - akltam 20:17:02 06/28/14 (9)
The drivers are

Tweeter - the Berylium Revelator from Scan
Midrange - the Volt VM752
Twin Bass - 25W/8565 from Scan.

This speaker will be powered by a 3 way active system. It will probably take me another week to set up the speaker.

Alan
- RE: Over 6 months of waiting, my cabinet has arrived. - fantja 09:35:15 07/02/14 (1)
  Very nice Alan.
  
  is there a special reason for building these speakers yourself?
  which other brands of gear are you using in your rig?
  - RE: Over 6 months of waiting, my cabinet has arrived. - akltam 21:59:05 07/05/14 (0)
    Most of my rig consist of DIY stuff.
    
    As I am into Active system, I believe the best way to achieve this is to select the speaker drivers individually. And I choose a 3 way speaker system.
    
    That is the reason why I ordered a custom made cabinet so that I can integrate these drivers.
    
    I have been using this approach but this time I started totally new with a twin 10 inch bass driver.
    
    I would prefer to get the ATC mid drivers but the 's' version is no longere available so I choose something similar which is the VOLT VM752.
    
    For the tweeter, I choose the Scan Berylium Revelator as this is the most high end tweeter offered by SCAN.
    
    Given my approach, it would be impossible to do this with a ready made speaker and even if it exist, it would be ultra expensive. So that is another reason why I built this speaker from scratch.
    
    You are welcome to surf my facebook which has got my hifi update.
    
    Alan
    - https://www.facebook.com/#!/akltam.tam?fref=ts (Open in New Window)
- A week if you're lucky - BPoletti 20:51:12 06/28/14 (6)
  With an active crossover and new speakers (not to mention new drivers), it will probably take more like 6 months to get everything set-up just right in your room. At least an active crossover is easier than passive. New speaker position, new listening position, crossover tweaks. Drivers changing because the suspension softens with age and use.
  But those cabinets are drop-dead gorgeous.
  Good luck.
  
  Edits: 06/28/14
  - RE: A week if you're lucky - akltam 06:39:39 06/29/14 (0)
    What I meant was that I need another week to prepare the speaker (such as adding sound absorbing foam, wiring ...etc) so that it can start to make sound.
    
    And I agree with you, it will probably take another 6 months or even a year to tweak the system and to break in the new drivers.
    
    Alan
  - RE: A week if you're lucky - hahax@verizon.net 21:38:12 06/28/14 (4)
    In some ways a passive crossover properly designed using a good computer program like LEAP is easier to set up because LEAP can compensate for all the areas in even good drivers that aren't flat(just look at SEAS drivers on their web site and SEAS makes excellent drivers). I've seen a friend design a passive crossover in half a day and get a really good design from the computer. All that was needed was to play a little with subtle changes to get the speaker to his taste(since no speaker is uncolored). But if he had wanted to he could have used the speaker with fine tuning.
    
    You can do the same thing with active crossovers but most people think you can just use a generic active crossover and play with the crossover points and slopes and it's good. The corrections needed just aren't that simple. I suspect if you did do the same kind of equalization with an active system it would be better than the passive one. But that's only if you do the equalization.
    
    And the equalization is not just for flat response. If you know what to do it also affects transparency and dynamics, etc.
    - RE: A week if you're lucky - akltam 06:46:38 06/29/14 (3)
      I came to realise that for active system there are more than adjusting Freq, Freq slope ,volume level of each band of the system.
      
      For my active system, I recently put in passive notch filter to get rid of unwanted freq range of each band.
      
      Alan
      - RE: A week if you're lucky - hahax@verizon.net 09:49:49 06/29/14 (2)
        
        In Reply to: RE: A week if you're lucky posted by akltam on June 29, 2014 at 06:46:38
        
        you are beginning to understand. Good man. I've been told that LEAP can design an active crossover as well as a passive one but I've only been told and haven't seen.
        By the way gorgeous cabinets. Are the mids being used dipole? And why no rebate on the mids only?
        
        Edits: 06/29/14
        
        RE: A week if you're lucky - akltam 10:42:08 06/29/14 (1)
        
        In Reply to: RE: A week if you're lucky posted by hahax@verizon.net on June 29, 2014 at 09:49:49
        
        The mid driver is the Volt VM752. It is a 3 inch dome. The unit has to be mounted from behind. Flush mount is not needed.
        
        Alan
        
        RE: A week if you're lucky - hahax@verizon.net 21:12:32 06/29/14 (0)
        
        In Reply to: RE: A week if you're lucky posted by akltam on June 29, 2014 at 10:42:08
        
        Now your speaker makes sense to me. Good Luck. Hope it comes out well.

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