I now need educated on the mid drivers

fbm211
fbm211 Posts: 1,488
edited June 2008 in Vintage Speakers
Im still in the learning stages on my SDA2Bs and would now like some insight on the difference between the 6503 and 6511 drivers.I know one is stereo and the other dimensional but what is the tech difference?I noticed that older models used the same drivers not two different ones.Im going to replace 3 of mine with new ones because the left speaker has a almost new stereo driver and well,it just looks better.(no visible wires).And its tighter than all the rest and my left channel sounds better than the right. The right mids are very worn.Dented caps and flimsey.
SDA-2BTL with custom IC
Adcom 565 monoblocks--Monarchy Audio M-10 preamp
Theta Data Basic Transport--Stello DA100 Signature DAC--Camelot Dragon Pro2 MK III
Harman Kardon T-55c TT
DH Labs Q-10 Signature Speaker Cables With Furez silver plated copper bananas
Revelation Audio Labs Prophecy Cryo-Silver Reference AES/EBU
Revelation Audio Labs Prophecy Cryo-Silver i2s digital cable
4 Furutech FP-314Ag with FI-11cu Plugs/FI-11AG IECs--- Power Cords
DH LABS REVELATIONS ICs-amps
Revelation Audio Labs Paradise cryo-silver ICs-Source to pre
Post edited by fbm211 on
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Comments

  • madmax
    madmax Posts: 12,434
    edited June 2008
    The drivers are built exactly the same. Only the resistance of the voice coil is different. (to match what the crossover needs).
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D
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  • heiney9
    heiney9 Posts: 25,204
    edited June 2008
    madmax wrote: »
    The drivers are built exactly the same. Only the resistance of the voice coil is different. (to match what the crossover needs).
    madmax

    Not true exactly. There are other differences in the later generations of SDA drivers. For instance the SDA 1C's use edge wound voice coils in the drivers similar to the SRS drivers of the same generation. 1B's didn't have the latest generation driver even though the electrical characteristics might have been similar

    Polk states the different properties of each driver type is proprietary and they don't give that info out. Raife tried to include in the compendium but the info wasn't available.

    Certainly the biggest difference is what Madmax suggests but there were other "construction" differences as improvements were made to the SDA line.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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