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Thread: Member meetup, Back to the BiAmp

  1. #1
    Heather [Senorita member] hjames's Avatar
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    Member meetup, Back to the BiAmp

    Couple weeks back I got an email from Subwoof that he'd bid on some speakers near me and wondered if I'd be willing to go pick them up and hold 'em for him 'til his next trip down this way a few weeks later. The pickup was pretty screwy - meet a guy who was hard to reach by cellphone at a UStore in Temple Hills, MD (a somewhat rough neighborhood over near Andrews Air Force Base). Seemed like Sean was a no show but as Emma posed under the sign for a proof of arrival shot, Sean popped up out of nowhere and everyone was smiles. We got the boxes loaded, brought them home, wrapped them in plastic to keep the critters out, and stuck them in the shed 'til Mike could get here for them.

    We also talked about a hum problem that had turned up in my system - bad enough that a few weeks back I'd switched the speakers back to conventional mode, pulled the JBL electronics and put my Citation 22 in place to run them (non-Biamp).

    Anyway, Mike is quite the guru with the JBL/UREI amps - in the past he's given me some tips when troubleshooting them and he offered to do some quick updates when he passed through on Saturday - if I had them ready and opened up for him. Opimax (Mark) hadn't yet made his trip down my way to do this half of the system compare (see local Listening party thread), but he made plans to pop through Saturday to check out my system and meet Mike.

    Mark rolled in tastefully around 2:30 - Mike and his daughter Dika arrived near twilight (!) - expected much earlier but they'd been waylaid by heavy DC traffic patterns. He brought spare Amps (!), a toolkit, and a cooler of awesome tasty beers.

    The guy is brilliant - kept up a deep tech dialog about amp design, crossovers and speaker designs while swapping out aged caps in my amps and downing some superb frosty beverage! No pix of Mike and Dika 'cause he was a blur of energy and motion all the time he was here!

    While he was swapping caps in my 6230, I pulled the Citation, and got the in and out cables ready for post repair sound checks.
    First amp done, we popped the covers in place and put updated 6230 amp in place of the Citation, running the 4341s full-range. Its still got darned humm..!

    Mike walked me quite quickly through a number of steps and I got the system humfree while he dialed in the second amp (was a ground loop - my fault!). Then he showed us how to set bias on these amps so they run cooler ... but when we swapped my 6260 into the system and it thumped on power-up, he determined it was due to a bad relay (and he was running WAY late and short of time) so he left me a 6260 loaner and took it back home for repair when he's not so pressed (what a great guy!) - it was 9PM by then and he had another stop near Balmer scheduled.

    I popped the speakers back into biAmp mode and reassembled my rack, and - it all sounds great again!

    We gave Mike and Dika best wishes for a safe drive and saw them off, then Emma, Mark and I headed in for some more listening fun ...

    Next day - Darned, we had so much fun I forgot to take PICTURES ...
    but, y'all have seen my system plenty of times already!
    Attached Images Attached Images   
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  2. #2
    Heather [Senorita member] hjames's Avatar
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    Here's the listed system:

    Harman Kardon AVR 335 Receiver
    Harman Kardon FL 8380 CD player/changer
    JVC XV-NP10 DVD player

    JBL/UREI M552 Active crossover
    JBL/UREI 6230 Amp
    JBL/UREI 6260 Amp

    JBL 4341 Studio Monitors

    Harman Kardon Citation 22 Amplifier
    JBL B-380 Subwoofer

    In system but not used -
    AppleTV 160gig (just demoed/sampled)
    Denon DP-45F Turntable/Stanton 681EEE (Mark isn't a vinyl guy)
    TIVO HD
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  3. #3
    Senior Member
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    Wait aren't those my cabinets? (I was ripped off by another seller on ebay for the same units)


    A good time was had by all, friends(great to meet you and your daughter Mike[subwoof] , music, food, fancy beers(don't know beers or drink them, i had my screw drivers). good progress was made in an audio system, and plenty of talk. I was there for over 8 hours!

    If you are in a rocket ship going the speed of light (or close) and that rocket is in another rocket which is going the same speed, which is in another, which in another , etc how fast is the first ship going?


    thanks for the the help on my center design Mike I will follow up, very nice of you to help

    Mark

  4. #4
    Senior Member timc's Avatar
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    The first ship is going the speed of light........All of them are.......


    BUT the first ship stands still, relative to the others.


    -Tim
    2213 + 2435HPL w/aquaplas + H9800 (Matsj edition)

  5. #5
    Heather [Senorita member] hjames's Avatar
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    For what its worth

    JBL/UREI 6230 Amp (110w/ch)
    JBL/UREI 6260 Amp (190w/ch)
    HK Citation 22 Amp (600 watts bridged for sub)
    2ch: Oppo, JoLida 502CRC, JBL L212, 18ti,240ti; Heath AS101, Von Schweikert VR4
    7.1: Oppo BDP103D, B&K, UREI 809A, JBL B460

  6. #6
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    I am sorry but each ship is going faster than the next, science is wrong, lol

    1 mph + 1mph = 2mph therefore 1 almost speed of light + 1 almost speed of light =2 almost speed of light, pure logic


    On a serious note I heard from the seller asking if i would drop the neg feedback if I got a refund. I agreed to go to no feedback once I got a refund .He wanted a phone number to talk but I said after money is refunded I might be willing to listen.

    and I still need to get back to Mike shortly...

    Mark

  7. #7
    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by hjames View Post
    ...(was a ground loop - my fault!)...
    Ignoring the obvious metaphor, that was my guess!!
    bo

    "Indeed, not!!"

  8. #8
    Senior Member timc's Avatar
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    Quote Originally Posted by opimax View Post
    I am sorry but each ship is going faster than the next, science is wrong, lol

    1 mph + 1mph = 2mph therefore 1 almost speed of light + 1 almost speed of light =2 almost speed of light, pure logic


    On a serious note I heard from the seller asking if i would drop the neg feedback if I got a refund. I agreed to go to no feedback once I got a refund .He wanted a phone number to talk but I said after money is refunded I might be willing to listen.

    and I still need to get back to Mike shortly...

    Mark


    2213 + 2435HPL w/aquaplas + H9800 (Matsj edition)

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