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Thread: Class A amp

  1. #16
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    Quote Originally Posted by bigshot View Post
    It's completely true! The biggest limiting factor to most home audio installations is what the wife will allow in the living room.
    I know but you mustn't say it.

    My finger is hovering over a Luxman 550 "Buy it now" button, which brings with it the adventure of making an import from Japan to the UK, with all that that means for duty and other taxes and charges.
    Last edited by Mandryka; Feb-03-2019 at 21:26.

  2. #17
    Senior Member Red Terror's Avatar
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    Quote Originally Posted by bigshot View Post
    It's completely true! The biggest limiting factor to most home audio installations is what the wife will allow in the living room.
    This whole thread is out of order! ✌️

  3. #18
    Senior Member Larkenfield's Avatar
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    Quote Originally Posted by Mandryka View Post
    I know but you mustn't say it.

    My finger is hovering over a Luxman 550 "Buy it now" button, which brings with it the adventure of making an import from Japan to the UK, with all that that means for duty and other taxes and charges.
    If you like your speakers and you insist on experimenting with a new amp, I'd suggest one that pushes your speakers to the limits of their power handling capabilities but that stay within specs so as not to damage them. If the speakers can handle 100 watts per channel, then consider an amp that can do that. That way you can get a more powerful sound at a reasonable sound level that might help to overcome some of the limitations of your listening environment. Nevertheless, it's doubtful you'll ever get the best out of any system with the way the room is set up. Drapes over the books would indeed help, ones that can be opened and closed. But I wouldn't consider an amp that cannot push your speakers to their greatest capacity. If it were me, I'd consider a satellite system with speakers that could be mounted above the bookshelves.
    Last edited by Larkenfield; Feb-04-2019 at 12:08.
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  4. #19
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    What's the problem created by the books?

    I don't play music very loud; the speakers' sensitivity is 90dB.

  5. #20
    Senior Member bigshot's Avatar
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    The problem isn't so much the books, books are better than mirrors, glass or hard floors. It's that your speakers are different distances from the side walls, they're too close to the back wall, and your primary reflection points on the floor and possibly the right wall aren't covered.

    I had a friend who was an audiophile who's wife I had heard just left him. He invited me over for a visit, so I figured I would go try to cheer him up. When I got there, he was fine as he answered the door- excited actually. He said "Come take a look at this!" He took me to the living room and pointed proudly to it. He had moved all the furniture out to the garage, and in its place were two six foot planar speakers and a small leather couch. Standing on little pedestals were two massive mono block amps. He was ecstatic. "My wife made me keep this system in storage. Now I get to set it up and use it! Yay!"
    Last edited by bigshot; Feb-04-2019 at 17:38.
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  6. #21
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    Quote Originally Posted by bigshot View Post
    The problem isn't so much the books, books are better than mirrors, glass or hard floors. .
    This is what I'd always thought. Given that the room isn't so lively that speech is echoey, my own feeling is that it's not right to try and say anything a priori about the acoustics, it needs to be measured and then a judgements made.

    Re the primary reflection points, and the distance from the rear wall, one thing to bear in mind is that I'm not expecting a great bass response from these little speakers. If I want to hear a 16' organ pipe I'll go to my Quads and Gradients. Anyway, if the brackets were good enough for Jim Rogers they're good enough for me!

    What I'm hoping Class A will bring is more holographic imaging.
    Last edited by Mandryka; Feb-04-2019 at 17:42.

  7. #22
    Senior Member bigshot's Avatar
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    Speaker placement isn't just about reflections. Soundstage is a big part of it too. When you push speakers against the wall, they couple with it and a lot of the energy that should be projected out gets dispersed along the wall, muddling up the placement of the sound. The distance between the two speakers and the distance between the speakers and the listening position is even more critical. If you have them too far apart, your phantom center falls out and it sounds like sound coming just from the left and right, if they are too close you don't get a soundstage spread, just a mono sound coming from the middle. If you sit off center or too close or too far away, the soundstage dissolves too. If you want ideal imaging, the best thing you can do is arrange your speakers in the perfect equilateral triangle. That is what stereo music is recorded to work properly with. Experiment with toeing your speakers in too. Depending on the dispersion pattern of your speakers, you can fine tune the imaging that way.

    You aren't likely to find any improvement in imaging from an amp. The phase improvements of one amp over another are infinitesimal compared to what is going on in your room. You seem to think an amp will solve your problems though, so buy one with a return guarantee and try it. Just save the packaging so you can get your money back if it doesn't work. (Which I think will be the case based on your photo.)
    Last edited by bigshot; Feb-04-2019 at 23:31.
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  9. #23
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    Yes,either something I can return or something I can sell easily without being too much out of pocket. I think you're underestimating the impact of the amplification on the depth of the image, and overestimating the impact of room modifications in a domestic setting, where there's soft furnishings, books etc.

    BBC type monitors like my 149s are relatively forgiving about placement and listening position. The equilateral model is certainly not a bad one, though I think that you get a good sound from nearfield listening at low volume, like the speakers are a giant pair of headphones!
    Last edited by Mandryka; Feb-05-2019 at 08:06.

  10. #24
    Senior Member bigshot's Avatar
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    I think you just are looking for someone to tell you, "Yes, go out and buy an expensive amp." If that's the case, then go buy an expensive amp. No need to ask.
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  11. #25
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    Quote Originally Posted by bigshot View Post
    I think you just are looking for someone to tell you, "Yes, go out and buy an expensive amp." If that's the case, then go buy an expensive amp. No need to ask.
    What I was looking for is someone who has experience of Class A.

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