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About owlsplace

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  • Birthday 12/01/1953

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    Shelburne Falls, MA
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  1. owlsplace

    AR-2 in Heathkit AS-2 clothing

    Still haven't opened these yet, but I'm amazed at how good they still sound after all these years. Would have loved to have the birch cabs.
  2. owlsplace

    Acoustic Research AR-5 rebuild service

    Glad you are up and running again. I have a set of fives that are all original and a set with the Hi-Vi conversion and it is obvious that I need to have Chris rebuild the dome tweeters. Love the AR-5s for sentimental reasons Here is an easy way to find more info on them here by using this search phrase: "AR-5 site:http://www.classicspeakerpages.net" Roger
  3. owlsplace

    A few of the Classics ...

    Yeah, two more sets of 6's and a set of 5's here plus I had to abandon a set of 5 cabs that were in progress during my recent downsize -- brought the drivers though Oh, just remembered a set of 7's waiting for veneer and an upgrade to drivers from the 18 series.... The 7's in the photo are teak veneer from across the pond.
  4. owlsplace

    Calling Frank Marsi

    Fun, but Frank doesn't do 10-inch woofers does he? A bit pricey also
  5. owlsplace

    Too much power for speakers?

    Too much power, yes and no depending on source material and listening levels. You can always use the recommended fuses although the slow-blow FNM fuses get expensive if you are fond of blowing them. It may possible to use less expensive fuses and get the same coverage. ADS and Heathkit used the 6x30mm glass fast-blow fuses which are a lot easier on the pocketbook. I generally preferred to not blow the FNMs and play different speakers when the music needed to be loud. Ditto on Larry's comment. Source material and average power levels determine the amount of heat build up. A low powered amp that is clipping will deliver a lot of energy to the tweeters often causing the VC leads to melt and separate like a fuse. I'm sure more than a few people here have put drivers back into service by bridging those gaps. I have powered AR-5's with an Adcom 555 II through a passive pre with the volume at max playing the Simon & Garfunkel "Concert in the Park" cd --- which is the same as connecting a player straight to the amp --- with no issues. The speakers were fused and they sounded great --- thought I was at the concert. This amp puts out 200 wpc into 8-ohms although I'm not sure a cd players output is high enough to drive the amp to full power out. The 5's were always were power hogs. Anyway, the Classic-era tweeters had longevity problems delivering high SPLs without self-destructing, the Teledyne AR-9 era drivers not so much. At least that is my impression. My advice would be to use whatever amp you want but fuse them or lose them if you like the volume set on high or use lots of tonal compensation, i.e. treble boost. JMHO, Roger
  6. owlsplace

    A few of the Classics ...

    Actually, I used to keep six pairs selectable by switch powered by the Adcom 555 II that I rebuilt along with the AR-SRC pre. That was capable of carrying all six sets but was fond of blowing speaker fuses when the volume went up; especially, if the impedance matching circuitry was not switched in. Obviously no consideration is given to placement here other than stackability. That is an Adcom passive pre in the photo. The amps are a couple of Sonance 260's that I picked up for a project that failed to materialize. They are 60 wpc high-current amps that warm up nicely driving the 2,3, and 5's together, not that I would want to do that very often. The 3's have AR-58 mids and tweeters, so technically not Classic-era and the 2's are Heathkit versions that have not had any work done to them since they were built as far as I can tell other than my removing the grills to look at the drivers. I'm sure these represent lots of entertainment over the years and more yet to come. Roger
  7. owlsplace

    A few of the Classics ...

    AR-2, AR-3a, AR-4, AR-5, AR-6 and AR-7 ... some pimps and tweeks in the bunch and a lot of entertainment... Roger
  8. owlsplace

    Opinions on these pots....

    I wonder if these will suffer the same issues with electrolysis as the originals pots? The combination of high current and dissimilar metals seems to be the original issue. Roger
  9. owlsplace

    AR 58S

    What differences should I be looking for here as mine are currently in progress? Roger
  10. owlsplace


    The AR-4 series are AR's perennial favorite speakers. As long is there is something available to power them they will be playing for many years to come no doubt. And they make great projects if you have time to kill... Here a few that ended up as projects Yes, by all means go back for the other pair and welcome to CSP.
  11. owlsplace

    Anyone worked on the X80 series ?

    I haven't been keeping up on the forum and noticed this old question that went unanswered. These speakers may come out of storage shortly. Looking at a black finish and probably finding a new owner if anyone needs a project. I have an extra NIB tweeter also.
  12. owlsplace

    Two years to get the AR-3a blues ...

    I had the enamel off okay. I must have soldered it with a pencil iron and didn't get the joint hot enough. One of the speakers was wheezing a bit when I played them. I noticed the surround was not attached entirely. There isn't much material there either as in maybe too small. I reattached with E6000 adhesive. These were labeled "Precision Audio" on masking tape around the magnet.
  13. owlsplace

    Two years to get the AR-3a blues ...

    Hard to believe I had to open one of these up already. I was thinking Roy was right, should have put in L-pads but it turned out one of my solder connections from the mid pot to coil failed as in cold. Hard to believe I did that. Fix was solder a lead onto the pot and use a crimp butt splice to reconnect. Butt connector was marine-grade and it was crimped with TomT's recommended mil-spec crimper. A little impromtu outdoor concert using a light-weight amp not up to Frank's specs ... 36822261_1743418949081780_747213087030902784_n.mp4
  14. owlsplace

    AR-5 Frequency Response "Problem"

    Engaging discussion and I jumped in without reading all the posts. I seem to remember JH having written two reviews of the AR-5? In one he stated that with the AR-5 model Acoustic Research had finally "gotten it right." I believe the context had something to do with an apparent fuzziness the 3a exhibited on operatic vocals. I did buy the 5's back in 1974. They always did seem harder to drive as in had to turn the volume control up higher. Before my recent move I aired out a pair of 5's using just an AR-SRC which is basically a passive pre- I believe and an Adcom 555 II. I played the live recording of Simon & Garfunkel's Concert in the Park and pretty much felt like I was in attendance. It is all pretty subjective for me at this point in time. Music was and is my drug of choice and AR's delivery systems were always pleased my ears. Roger
  15. owlsplace

    AR-5 Frequency Response "Problem"

    Good synopsis, I'll have to get my 5's out of storage ... currently listening to AR-2's from Heathkit and quite impressed but then my hearing is not what it used to be :). The 3a's here have Teledyne era drivers and reconed woofers which puts them in the AR-58 class -- an entirely different sound. Roger