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Thread: Would I damage my speakers if...

  1. #21
    Join Date: Apr 2015

    Location: Central Virginia

    Posts: 1,193
    I'm Russell.

    Default

    And.....

    If you have two amps exactly alike, what is the difference between vertical and horizontal? Basically, youíve got 4 mono amps, in two stereo boxes, what difference will it make which way you wire it? If they have bridged settings, Iíd prefer to use them as Monoblocks. And let the crossover do itís thing.

    Russell

  2. #22
    Join Date: Mar 2018

    Location: Bristol, UK

    Posts: 39
    I'm Roland.

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    Quote Originally Posted by alphaGT View Post
    If you start turning the volume up slowly, hopefully you could hear that the treble was way too strong before you reached the volume level needed to blow the tweeter. Unless you were wreckless and just cranked it up!

    Russell
    Thank you very much Russell for your input... these are my thoughts too.
    120 wpc into 8 ohms, but the speakers are DALI opticon 6 which are 4 ohm

  3. #23
    Join Date: Mar 2018

    Location: Bristol, UK

    Posts: 39
    I'm Roland.

    Default 2 Diagrams of Integrated Bi-Amping (using 2 outputs of DAC)

    Could anyone please look at my Vertical Biamp diagram
    https://www.flickr.com/photos/roland...7690276465420/
    and let me know if the wiring is correct?

    Possibly also check my Horizontal Biamp diagram?
    https://www.flickr.com/photos/roland...7690276465420/

    No idea which sounds best... but 2 things to consider

    1) The amps are integrated ; the gain control characteristics will differ completely from Vertical to Horizontal
    2) The DAC has 2 outs : Fixed and Variable.. I don't know how seamless using both together will work. In both cases the variable out can be used to attenuate the treble 1 or 2 notches (might be a nice feature)

    Thanks in advance for any help

  4. #24
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 21,569
    I'm Martin.

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    The DAC will output from both fixed and variable simultaneously?
    Martin



    Current Lash Up:

    Technics SL1200P CD Player * NVA P90SA passive pre / Krell KSA50S Power amp * JM Lab Electra 926 loudspeakers *


    'This is the sort of music I'd be listening to if I was going shopping for a training bra.'

  5. #25
    Join Date: Mar 2018

    Location: Bristol, UK

    Posts: 39
    I'm Roland.

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    Quote Originally Posted by Macca View Post
    The DAC will output from both fixed and variable simultaneously?
    That's right.. the DAC outputs simultaneously from fixed and variable outputs...
    The variable at max is the same as the fixed. Whether or not this will present timing or phase issues remains to be seen.

    The manufacturer's support staff didn't criticise my method in any particular way

  6. #26
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 21,569
    I'm Martin.

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    Looks okay to me then. Although I'm not accepting any liability

    It's a bit of a lash up though. You won't get any benefit over using just one amp that is comfortable driving the whole speaker. But I suppose you know that.
    Martin



    Current Lash Up:

    Technics SL1200P CD Player * NVA P90SA passive pre / Krell KSA50S Power amp * JM Lab Electra 926 loudspeakers *


    'This is the sort of music I'd be listening to if I was going shopping for a training bra.'

  7. #27
    Join Date: Mar 2018

    Location: Bristol, UK

    Posts: 39
    I'm Roland.

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    Quote Originally Posted by Macca View Post
    Looks okay to me then. Although I'm not accepting any liability

    You won't get any benefit over using just one amp that is comfortable driving the whole speaker. But I suppose you know that.
    No, I don't know that.
    In truth, I am hoping for a little more... of course
    I know what I hear (I'm a professional musician) so I will judge it when I hear it, not before.
    Thx for following

  8. #28
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 36,181
    I'm Geoff.

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    Quote Originally Posted by Macca View Post
    It's a bit of a lash up though. You won't get any benefit over using just one amp that is comfortable driving the whole speaker. But I suppose you know that.
    I agree. The speakers are quoted as having 89db sensitivity. In theory that would give in the region of 130db at the max specified amp output of 150 watts. Not that I think the speakers would actually manage that. Anyway, 100db loudness is more than enough and that would require a mere 15 watts. Assuming the spec is for each speaker singly, you can bung another 3db on for a pair working.

  9. #29
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 21,569
    I'm Martin.

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    Sorry Roland I wasn't criticising. I'm interested in how it pans out. I suspect you may well get an improvement in sound quality, it all depends on how difficult a load the speaker is and how good the Arcam amps are at driving them. If one amp is not comfortable doing it all then adding another should improve things. If one can drive them comfortably then it won't. The only real test is to try it and see.
    Martin



    Current Lash Up:

    Technics SL1200P CD Player * NVA P90SA passive pre / Krell KSA50S Power amp * JM Lab Electra 926 loudspeakers *


    'This is the sort of music I'd be listening to if I was going shopping for a training bra.'

  10. #30
    Join Date: Mar 2018

    Location: Bristol, UK

    Posts: 39
    I'm Roland.

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    Quote Originally Posted by Macca View Post
    Sorry Roland I wasn't criticising. I'm interested in how it pans out. I suspect you may well get an improvement in sound quality, it all depends on how difficult a load the speaker is and how good the Arcam amps are at driving them. If one amp is not comfortable doing it all then adding another should improve things. If one can drive them comfortably then it won't. The only real test is to try it and see.
    I agree with you, completely, Martin. I really don't know how the result will pan out in practice.
    Previously I had B&W 704 floor-standers (the ones that came out 10 years ago, not the new ones)- they were a little hard for my 90Watt A90 to push; the sound was a little forced.. but when I added a P90 to the bass, I got a much more relaxed sound.

    With my new system I am totally prepared to accept a result that shows little or no gain in bi-amping.
    But I do want to try it out ! First I have to order a Hifi rack that will accommodate the 2x A39 ; they are so non-standard in size (depth) !!

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