SDA Midrange enclosure housing absent -Why?

altecman
altecman Posts: 52
edited September 2008 in Vintage Speakers
Why were the midrange units on the larger SDA speakers fitted without seperate enclosure housings, the only exception being the original SDA-1 - the separate enclosure was later removed when the 1A was released. I was always told that you housed the midrange unit in a seperate enclosure to prevent the bass unit from driving the midrange. I am very happy with the 1A.1TL mod as you are probably all aware of now but I feel that I'm getting some midrange glare - what to do! :confused:
Post edited by altecman on
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  • altecman
    altecman Posts: 52
    edited August 2008
    Lasareath, I know the bass drivers are powering the ABR below 100hz but what about 100hz upwards. The seperate drivers which have been asigned the bass duties below 100hz will be trying to drive the seperate midrange driver above 100hz.
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  • ben62670
    ben62670 Posts: 15,969
    edited September 2008
    Lasareath wrote: »
    There are no seperate drivers. All of the 6.5" drivers power the PR

    Thats how it work's. All the MWs play into the lower bass region.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • altecman
    altecman Posts: 52
    edited September 2008
    Silly me , brain in neutral again, helps if you read the schematics properly.
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  • ben62670
    ben62670 Posts: 15,969
    edited September 2008
    Thats cool. SDA had be baffled for a while;)
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • ohskigod
    ohskigod Posts: 6,502
    edited September 2008
    same here. we've all been there. welcome aboard.

    dont sweat the details, the important thing is SDA's = good :D
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
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  • ben62670
    ben62670 Posts: 15,969
    edited September 2008
    ben62670 wrote: »
    Thats cool. SDA had be baffled for a while;)
    Ben

    WTF I said that when I was straight!
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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