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ligs

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  1. Yes, each capacitor can introduce subtle changes in the frequency response as well as relative spl level. As Adams emphasized, trimming with LPads are often needed to bring back the original sound. I seem to remember AR used to keep a few sets of reference speakers and would measure the current production models with the reference to insure the consistency in sound quality.
  2. If you are satisfied with the bass then they will be ok. Connoisseur 50 and TSW-610 have much larger cabinets(2.6 ft3 ) then AR3a(1.7 ft3), I would have guessed that your speaker will not reach as deep as the real 3a.
  3. Adams, that is a nice solution for balancing the stereo speakers! I have seen many people comparing speaker a with speaker b with all the level controls turned all the way up. This way none of the speaker is sounding at its best. In my DIY speaker building the midrange is the most difficult range to get it right. George
  4. ligs

    AR MGC-1

    Here is the schematic for AR MGC-2. I suspect MGC-1 would be similar except for the bass section. AR MGC-2 x-over.tiff
  5. I had one AR 18 woofer which rattled. It turned out a part of the the voice coil became unglued.
  6. I ran my AR9's to Adcom GFA 555 -2 in a bi-wired fashion using 2 pairs of AWG 12 wires and felt the presentation was cleaner than a single pair of 12 AWG to each channel. When bi-wiring one should enjoy the benefit of reducing the overall resistance while not as much as paralleling 2 pairs of wires to each channel(reduction by 50%, in the latter case). Since I don't have the speakers nor the amplifier anymore, I could not test bi-wiring vs simple doubling the wiring for each channel. Perhaps people who bi-wire their speakers can try this comparison and share the results to the readers? George
  7. I had a pair of AR Hi Res 15 at one time and liked them very much. They had 6-inch Magalloy one-piece woofers and one-inch Diamond coated Titanium dome Tweeters! So both drivers are made of metals. Some of the old links that provide more info are no longer working.
  8. ligs

    OLA's I Just Bought

    Speaking of keeping these as close to the original as possible, It is interesting to note that the original Advent woofer has inverted foam roll as in this instruction video.
  9. ligs

    OLA's I Just Bought

    Some Advent woofers have inverted rolls some have the regular out-facing rolls. What gives?
  10. My guess would be Miller & Kreisel M&K. They had many satellite/subwoofer products in the past using Peerless drivers in many of their satellite speakers. Very high quality speakers, IMO.
  11. Removing the deep bass(like you did with AR58) tends to improve the linearity of a woofer and the clarity of the overall sound. A case in point is when playing LP, we will notice the excessive movement of the woofer which robs the power of the amplifier. But after engaging the subsonic filter, we can play the same speaker louder and cleaner. I remember one of the more salient features of AR9 is its exceptional power handling capacity. Not only the 8" LMD does not have to produce the deep bass, the pair of 12" subwoofers are driven through a special crossover network containing a large capacitor to serve as a subsonic filter.
  12. I am pleased that a question on my part can shake up something on your end. George
  13. Measurements by Carl Richard for the refoamed 12" woofer and 8" LMR used in AR9.
  14. I was using that clip as an example for you to consider , not my system unfortunately:( BTW, try the lossless audio selection on youtube. George
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