The AI-1 Dreadnought Project Pt.1

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  • Schurkey
    Schurkey Posts: 2,100
    edited March 2022
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    plastic_avatar wrote: »
    Realistically, is it worth using the 800va coil since the 1000va coil isn't available?

    Is it something I'm going to notice the difference on with my 1c project. Or is it degrees of a smidge of a difference?
    The Polk-supplied AI-1 used a 0.13-ampere current-capacity, and 15VA (!!!) transformer.

    Matthew Polk suggested a transformer that could handle "5+ amperes" peak current.

    The 800 VA transformer is rated for two RCHs less than 7 amps.

    Folks with better ears than mine say that there's still improvement in the larger transformer. You may be letting "perfect" be the enemy of "good"; I wouldn't NOT use an 800 VA transformer because I was waiting on a 1000 VA transformer.
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  • plastic_avatar
    plastic_avatar Posts: 690
    edited March 2022
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    Folks with better ears than mine say that there's still improvement in the larger transformer. You may be letting "perfect" be the enemy of "good"; I wouldn't NOT use an 800 VA transformer because I was waiting on a 1000 VA transformer.

    I'm stepping into enemy of good territory at the moment, I do agree.

    I'm months out from realistically going Dreadnought facsimile, and have the other coils and internal wires to consider on the way. BUT, I'm trying to suss out all the options while I chug towards my first listen on the upgraded 1c. I didn't even attempt to test them out before I stripped them down. I want the experience to be totally new.

    Anyhow =)

    Yeah. if 800va is an audible improvement over stock? I think that'll do me when the time comes ;)\

    I did find this thread to digest.

    https://forum.polkaudio.com/discussion/131537/plitron-1000va-transformer-evaluation
    The Thrifty Setups in Mah House Big thrifty stereo in the basement w/ my custom SDA-1C (built with help from kind forum members) * Beautiful 1966 MCM GE console upgraded w/ Bluetooth, Dual turntable, and Paradigm speakers in family room * Swanky 1980 Realistic system and great TEAC eq with dancing colored lights in the living room * Ye Olde college stereo in the garage
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  • Toolfan66
    Toolfan66 Posts: 16,907
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    The 800VA is worth getting, it will make a huge difference over anything stock..
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  • pitdogg2
    pitdogg2 Posts: 24,579
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    The Avel-Lindberg 800VA Y236906 is off the shelf model, meaning stocked all the time. I've used it it works very good. I seriously doubt there will ever be a group effort again to get the minimum number needed, not to mention it's cost is going to be close to $300 each if not more.
    Get the 800va and do not look back.
    The only reason I sold my 800va was because I was sharing lead in the last group buy. Unlike previous group buys IIRC we did not get bigger discounts after a certain number. Cost did go down once we hit a certain number threshold but did not continue to drop if we doubled the count.

    Get the 800va......
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  • audioluvr
    audioluvr Posts: 5,437
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    Depends on the quality of the equipment upstream and your ears. As for me I thought I could hear a slight difference but it could have been the placebo effect
    Gustard X26 Pro DAC
    Belles 21A Pre modded with Mundorf Supreme caps
    B&K M200 Sonata monoblocks refreshed and upgraded
    Polk SDA 1C's modded / 1000Va Dreadnaught
    Wireworld Silver Eclipse IC's and speaker cables
    Harman Kardon T65C w/Grado Gold. (Don't laugh. It sounds great!)

    There is about a 5% genetic difference between apes and men …but that difference is the difference between throwing your own poo when you are annoyed …and Einstein, Shakespeare and Miss January. by Dr. Sardonicus
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