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About DavidR

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  • Birthday 06/21/1951

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    MetroWest MA

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  1. New, this amp (see link below) is above your budget but if you check out the Emotiva Lounge For Sale (Emporium) section someone might be selling one. https://emotiva.com/collections/amps/products/xpa-dr2 The way to have balanced sound with 2 amps is to use 'splitter' cables from you preamp.
  2. The PS Audio amp is rated for 400 watts into 4 ohms which is what AR recommends for power on the AR9. It's also a very well designed amp and is probably a current pushing amp which is a good thing. I don't think you will gain anything from bi-amping. My amp is a high current, 500wpc into 4 ohm and I have two identical units and have never considered bi-amping. Simply not needed. If you had an amp with less than 200wpc into 4 ohms then it would be something to consider.
  3. What Stimpy said above. Those old caps begin acting more like a resistor than a capacitor. I thought my AR90s tweeters had dried ferrofluid as they were very dull. New caps corrected the muted sound.
  4. I think there is some wording in the AR9 manual. I'll take a look and get back to you.
  5. Don't know if you can open this powerpoint but shows caddy-corner set-up LvngRm - Stereo.pptx
  6. can you 'kitty-corner' them some people say 'kaddy-corner'
  7. https://picclick.co.uk/Acoustic-Research-Teledyne-AR-48LS-vintage-high-end-262622834870.html
  8. Contact Bennic. I believe they sell in the UK. https://www.bennic.com.tw/en/index.asp Try MDL, too https://www.mdl.com.tw/en/contact.html
  9. I believe the + is marking the outside of the foil and that goes to the destination/driver.
  10. Are those 2500uF caps bi-polar? Do you have a link to them.
  11. I have one tweeter. PM me if interested.
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