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RE: Biamping T-1Ds with a miniDSP ...

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In Reply to: RE: Biamping T-1Ds with a miniDSP ... posted by andyr on February 12, 2017 at 03:14:57

Where might i find this minidsp forum nothing comes up in the search for it.
BTW almost all of my listening is lp's, some from a Nak cassette deck. I am looking for a way to "see" what my room is doing... Thanks.....
May He Who Watches Over Us All, Watch Over You And Yours.

Edits: 02/12/17

Follow Ups:

RE: Biamping T-1Ds with a miniDSP ... - andyr 22:16:41 02/12/17 (4)
Here you are, OT: https://www.minidsp.com/forum/support

All my serious listening is also vinyl. :-))

The miniDSP can be used in 2 modes:
1. to enable you to modify what your room is doing (which is very valuable!)
2. and additionally, in place of the passive XO in your speakers.

I am using #2; if you don't want to turn your speakers into active then you just do #1.

The miniDSP unit enables you to change what the room is doing ... however, to "see" what your room is doing, you need:
* a calibrated mic
* an external sound card
* and REW (Room Equalisation Wizard).

Andy
- RE: Biamping T-1Ds with a miniDSP ... - OldTimer 21:13:23 02/14/17 (2)
  @andy
  Here you are, OT: https://www.minidsp.com/forum/support
  sorry was looking all over this site(guess the pain meds are working to well).
  All my serious listening is also vinyl. :-))
  The miniDSP can be used in 2 modes:
  1. to enable you to modify what your room is doing (which is very valuable!)
  2. and additionally, in place of the passive XO in your speakers.
  Can it do both at the same time? I want to "see" my room, maybe correct it but mostly want to biamp T1D's. and which version the .9V or the 2V?
  
  May He Who Watches Over Us All, Watch Over You And Yours.
  
  Edits: 02/14/17
  - RE: "Can it do both at the same time? ... - andyr 22:41:08 02/14/17 (1)
    You said: " I want to 'see' my room, maybe correct it but mostly want to biamp T-1Ds ".
    
    Perhaps I can explain it like this:
    
    * the miniDSP 2x4 or the new 2x4Hd (which I suggest is the one to buy) will enable you to set up the digital equivalent of your current T-1D passive filters. So you can actively biamp.
    
    * but the miniDSP unit itself is the hardware ... it runs on software. This is the 'Plug-in' which you need to pay $10 for and download to your computer ... and then get to grips with how to drive it. (You can get help here ... or on the miniDSP Forum.)
    
    * With the miniDSP in circuit, your signal chain runs thus:
    - vinyl source (or preamp output)
    - to analogue input of the miniDSP
    - to power amps
    - to T-1Ds, with their passive XOs removed (and the back-plate terminal connections re-arranged).
    
    * This gives you the XO.
    
    * But to 'read' the room - which enables you to change the settings in the miniDSP unit, to correct room issues - you need some additional items:
    - a calibrated mic (like the miniDSP one)
    - the REW (Room Equalisation Wizard) software; this is a free download
    - plus an external USB soundcard - REW has recommendations.
    
    * And you have to get to grips with the REW software.
    
    You asked: " Which version - the .9V or the 2V? ".
    
    I believe this can be set with a dip switch inside the miniDSP box. I haven't played with this because the output of my preamp is <0.9v - so I have left this parameter at the default setting.
    
    Good luck,
    Andy
    - RE: "Can it do both at the same time? ... - OldTimer 18:25:12 02/15/17 (0)
      Thanks to all for your help and comments.....
      May He Who Watches Over Us All, Watch Over You And Yours.
- RE: Biamping T-1Ds with a miniDSP ... - Davey 07:31:50 02/13/17 (0)
  "The miniDSP unit enables you to change what the room is doing ... "
  
  Well, not really. Electronic equalization doesn't change the room, but rather alters the speaker response. The whole concept of "room correction" is a misnomer, in my opinion, and altering a speakers response so it measures 'better' at a single location at the expense of most other locations is convoluted justification for the process.
  
  The miniDSP (and other equalization and crossover devices) are primarily for optimization of the speaker design itself. This optimization would be valid regardless of the room the speaker was used in.
  
  The DIRAC-processing units have a particular/narrow usage, but unfortunately have an extremely elevated price owing to the licensing fees.
  
  Dave.

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