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Thread: Acoustic Research Amplifiers

  1. #11
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 99,005
    I'm Grant.

    Default

    Tidy amp Andre
    Regards,
    Grant .... ؠ ......Don't be such a big girl's blouse

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    FIIO K7 BT, M11 PLUS, BTR7, KA5 - OPPO BDP-103D - PANASONIC UB450 - PANASONIC 4K ULTRA HD TV - PIXEL 6 - AVANTREE LR BLUETOOTH - 2* X600 SOUNDCORE - HEADPHONES INCLUDE, FIIO, NURAPHONES', FOCAL, OPPO, BOSE, CAMBRIDGE, BOWER & WILKINS, DEVIALET, MARSHALL, SONY, MITCHELL & JOHNSTON - 2*ZBOOK'S- MERCURY BD ROM, ROON, QOBUZ, TIDAL, PLEX, CYBERLINK, JRIVER - MULTI HDD'S -

    Oh my god! There's nothing wrong with the bidet is there?

    “Nothing discloses real character like the use of power. It is easy for the weak to be gentle. Most people can bear adversity. But if you wish to know what a man really is, give him power. This is the supreme test. It is the glory of Lincoln that, having almost absolute power, he never abused it, except on the side of mercy".

    “You see these dictators on their pedestals, surrounded by the bayonets of their soldiers and the truncheons of their police ... yet in their hearts there is unspoken fear. They are afraid of words and thoughts: words spoken abroad, thoughts stirring at home -- all the more powerful because forbidden -- terrify them. A little mouse of thought appears in the room, and even the mightiest potentates are thrown into panic.”

    "You don't have free will. You have the appearance of free will.”

    “There's a war out there, old friend. A world war. And it's not about who's got the most bullets. It's about who controls the information. What we see and hear, how we work, what we think... it's all about the information!”


    ***SMILE, BE HAPPY***

  2. #12
    Join Date: May 2016

    Location: South Yorkshire

    Posts: 905
    I'm Andr'e.

    Default

    Na that's beautiful mate


  3. #13
    Join Date: Sep 2009

    Location: Bournemouth

    Posts: 5,271
    I'm Dan.

    Default

    Quote Originally Posted by Virtual-Symmetry View Post
    Na that's beautiful mate

    LOL....im guessing you dont see many of them too...
    Pre & Power
    Technics SUC 909U & Technics SE A909S
    Turntable
    Thorens TD 125 MK1 , SME 3009 S2 Non Improved , Shure V15 II , SME 2000 Plinth
    CD Transport & DAC & PSU
    Marantz 6005 , Beresford Caiman , Paul Hynes SR4
    Loudspeakers
    Tannoy 615 MK2

  4. #14
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 99,005
    I'm Grant.

    Default

    Ah the missing link. Not a big Armstrong fan but they wer nice looking... You wont find many of those around.
    Regards,
    Grant .... ؠ ......Don't be such a big girl's blouse

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    FIIO K7 BT, M11 PLUS, BTR7, KA5 - OPPO BDP-103D - PANASONIC UB450 - PANASONIC 4K ULTRA HD TV - PIXEL 6 - AVANTREE LR BLUETOOTH - 2* X600 SOUNDCORE - HEADPHONES INCLUDE, FIIO, NURAPHONES', FOCAL, OPPO, BOSE, CAMBRIDGE, BOWER & WILKINS, DEVIALET, MARSHALL, SONY, MITCHELL & JOHNSTON - 2*ZBOOK'S- MERCURY BD ROM, ROON, QOBUZ, TIDAL, PLEX, CYBERLINK, JRIVER - MULTI HDD'S -

    Oh my god! There's nothing wrong with the bidet is there?

    “Nothing discloses real character like the use of power. It is easy for the weak to be gentle. Most people can bear adversity. But if you wish to know what a man really is, give him power. This is the supreme test. It is the glory of Lincoln that, having almost absolute power, he never abused it, except on the side of mercy".

    “You see these dictators on their pedestals, surrounded by the bayonets of their soldiers and the truncheons of their police ... yet in their hearts there is unspoken fear. They are afraid of words and thoughts: words spoken abroad, thoughts stirring at home -- all the more powerful because forbidden -- terrify them. A little mouse of thought appears in the room, and even the mightiest potentates are thrown into panic.”

    "You don't have free will. You have the appearance of free will.”

    “There's a war out there, old friend. A world war. And it's not about who's got the most bullets. It's about who controls the information. What we see and hear, how we work, what we think... it's all about the information!”


    ***SMILE, BE HAPPY***

  5. #15
    Join Date: May 2016

    Location: South Yorkshire

    Posts: 905
    I'm Andr'e.

    Default

    The Armstrong '400' series was Armstrongs first attempt at Transistor amplification, that design was a Germanium circuit. Not the last word in reliability, the following '500' series was pretty much the same amp circuit but Silicon design, i still prefer the sound & looks of the '400' tho.

  6. #16
    Join Date: Sep 2009

    Location: Bournemouth

    Posts: 5,271
    I'm Dan.

    Default

    Well i bought the A-03 Amp.....

    I think it has a fault please tell me if its normal or if not what the fault could be I plugged a CD player into the CD input at the back but their is sound but its like reverb echoy vocals not bass , guitar or drums its really weird I have the CD-direct on could this be bypassing the circuitry? Theirs no other CD input its not the CD player as its fine with various other amplification.

    Pre & Power
    Technics SUC 909U & Technics SE A909S
    Turntable
    Thorens TD 125 MK1 , SME 3009 S2 Non Improved , Shure V15 II , SME 2000 Plinth
    CD Transport & DAC & PSU
    Marantz 6005 , Beresford Caiman , Paul Hynes SR4
    Loudspeakers
    Tannoy 615 MK2

  7. #17
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 99,005
    I'm Grant.

    Default

    try cd in another line. If cd is like that in another line in then its an amp problem . If another line works then its something in that line. Other thing is to try a cassette too in different inputs
    Regards,
    Grant .... ؠ ......Don't be such a big girl's blouse

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    FIIO K7 BT, M11 PLUS, BTR7, KA5 - OPPO BDP-103D - PANASONIC UB450 - PANASONIC 4K ULTRA HD TV - PIXEL 6 - AVANTREE LR BLUETOOTH - 2* X600 SOUNDCORE - HEADPHONES INCLUDE, FIIO, NURAPHONES', FOCAL, OPPO, BOSE, CAMBRIDGE, BOWER & WILKINS, DEVIALET, MARSHALL, SONY, MITCHELL & JOHNSTON - 2*ZBOOK'S- MERCURY BD ROM, ROON, QOBUZ, TIDAL, PLEX, CYBERLINK, JRIVER - MULTI HDD'S -

    Oh my god! There's nothing wrong with the bidet is there?

    “Nothing discloses real character like the use of power. It is easy for the weak to be gentle. Most people can bear adversity. But if you wish to know what a man really is, give him power. This is the supreme test. It is the glory of Lincoln that, having almost absolute power, he never abused it, except on the side of mercy".

    “You see these dictators on their pedestals, surrounded by the bayonets of their soldiers and the truncheons of their police ... yet in their hearts there is unspoken fear. They are afraid of words and thoughts: words spoken abroad, thoughts stirring at home -- all the more powerful because forbidden -- terrify them. A little mouse of thought appears in the room, and even the mightiest potentates are thrown into panic.”

    "You don't have free will. You have the appearance of free will.”

    “There's a war out there, old friend. A world war. And it's not about who's got the most bullets. It's about who controls the information. What we see and hear, how we work, what we think... it's all about the information!”


    ***SMILE, BE HAPPY***

  8. #18
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,625
    I'm Geoff.

    Default

    Try another lead. Try another CD player. And like Grant says, try other inputs.

    What you describe seems a bit like something being out of phase.
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  9. #19
    Join Date: Sep 2009

    Location: Bournemouth

    Posts: 5,271
    I'm Dan.

    Default

    Tried 2 CD players with 2 different cables both work fine on Tape , Aux , Tuner but same result on CD-direct IE out of phase.

    This amplifier has been modified to 1/4 jack plugs at the back could this have something to do with it ive contact the last owner for a refund but no ball .

    Pre & Power
    Technics SUC 909U & Technics SE A909S
    Turntable
    Thorens TD 125 MK1 , SME 3009 S2 Non Improved , Shure V15 II , SME 2000 Plinth
    CD Transport & DAC & PSU
    Marantz 6005 , Beresford Caiman , Paul Hynes SR4
    Loudspeakers
    Tannoy 615 MK2

  10. #20
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 99,005
    I'm Grant.

    Default

    Could be. Kinda depends whats been done, but should be fairly easy to put right Dan. Wiring could be cockeyed on that one. Meantime run cd out of the other aux. Just get someone to fix wiring when you get a chance
    Regards,
    Grant .... ؠ ......Don't be such a big girl's blouse

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    FIIO K7 BT, M11 PLUS, BTR7, KA5 - OPPO BDP-103D - PANASONIC UB450 - PANASONIC 4K ULTRA HD TV - PIXEL 6 - AVANTREE LR BLUETOOTH - 2* X600 SOUNDCORE - HEADPHONES INCLUDE, FIIO, NURAPHONES', FOCAL, OPPO, BOSE, CAMBRIDGE, BOWER & WILKINS, DEVIALET, MARSHALL, SONY, MITCHELL & JOHNSTON - 2*ZBOOK'S- MERCURY BD ROM, ROON, QOBUZ, TIDAL, PLEX, CYBERLINK, JRIVER - MULTI HDD'S -

    Oh my god! There's nothing wrong with the bidet is there?

    “Nothing discloses real character like the use of power. It is easy for the weak to be gentle. Most people can bear adversity. But if you wish to know what a man really is, give him power. This is the supreme test. It is the glory of Lincoln that, having almost absolute power, he never abused it, except on the side of mercy".

    “You see these dictators on their pedestals, surrounded by the bayonets of their soldiers and the truncheons of their police ... yet in their hearts there is unspoken fear. They are afraid of words and thoughts: words spoken abroad, thoughts stirring at home -- all the more powerful because forbidden -- terrify them. A little mouse of thought appears in the room, and even the mightiest potentates are thrown into panic.”

    "You don't have free will. You have the appearance of free will.”

    “There's a war out there, old friend. A world war. And it's not about who's got the most bullets. It's about who controls the information. What we see and hear, how we work, what we think... it's all about the information!”


    ***SMILE, BE HAPPY***

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