SDA 1.2tl crossover upgrades

Toolfan66
Toolfan66 Posts: 17,254
edited September 2010 in Vintage Speakers
It's been awhile since I upgraded my 1.2's to 1.2tl's

I have another set of crossovers and these are 1.2tl crossovers. I just want to double check my list of parts.

Caps:
12uf. X3
27uf. X1
13.5uf. X1

Resistors:
11.5. X1
7.5. X1
15. X1
2.7. X1
22.5. X1

I want to just bypass the poly's. Should I use the .05 resistors. I didn't use anything in my 1C's and they have been fine..

Am I missing anything? I want to get my parts ordered from Sonicaps or should I try something else since I have sonicaps in my other crossovers??

Thanks!!!
Post edited by Toolfan66 on
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Comments

  • headrott
    headrott Posts: 5,496
    edited August 2010
    Larry,

    Not sure about the caps and stock resistors (as I don't own 1.2's or 1.2TLs) but I would definately use the .5 ohm resistor instead of just a jumper to replace the poly. I started with just the jumper (as that is how the 3.1TL's come) but then added the .5 ohm resistor later and made a nice difference in the high end. I recommend it, but it's a matter of taste.

    Greg
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  • Janne
    Janne Posts: 139
    edited August 2010
    Maybe you put in some Dynamicaps. Not sure if they sound better as I had nothing to compare with.
    HT/2 CH
    McIntosh MX120, MC500, MC206, MEN220
    polkaudio SDA SRS 1.2TL, XO, Inductor, Tweeter, Larry's rings, WBT Binding posts, Moretite and Dynamat mod. Built by Mollie Jones 27:th of February 1991, CS350-LS XO mod, LS-f/x, DSW MicroPro 4000
    MIT Shotgun S3.3 Bi-wire SC, Shotgun S3.3 SC, Shotgun S3.3 Proline IC, Shotgun S3.3 IC, Shotgun S3.3 Sub cable, AVT 1 Optical IC, EXP 3 Speaker interconnect.
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  • Ricardo
    Ricardo Posts: 10,636
    edited August 2010
    Looks like you are missing a 0.25 uF cap

    http://www.polkaudio.com/forums/showthread.php?t=37333&highlight=solen
    _________________________________________________
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  • thejck
    thejck Posts: 849
    edited August 2010
    You have an extra set of crossovers? where were you able to pick up a set like that?
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  • thejck
    thejck Posts: 849
    edited August 2010
    Are you going to be doing the upgrade by yourself or you going to have Ben do them for you? You dont happen to have pictures of the 1.2's and the 1.2TL crossovers side by side do you?
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  • ben62670
    ben62670 Posts: 15,969
    edited September 2010
    I still do the 1.2 to 1.2TL mod.
    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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  • thejck
    thejck Posts: 849
    edited September 2010
    ben62670 wrote: »
    I still do the 1.2 to 1.2TL mod.

    I sent you a PM and am still waiting for you to respond to me on the price..
    I want to go ahead and order the rdo198's but am waiting until I get my plan for the crossovers worked out.
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  • thejck
    thejck Posts: 849
    edited September 2010
    Anyone have a way to contact Ben? I do not think he is getting my PM's. I want him to do my TL conversion on my 1.2..Please let him know I am looking for him.
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  • ben62670
    ben62670 Posts: 15,969
    edited September 2010
    I'll shoot you a price tomorrow.
    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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  • Toolfan66
    Toolfan66 Posts: 17,254
    edited September 2010
    ben62670 wrote: »
    I'll shoot you a price tomorrow.

    You don't love me anymore??:p:p

    Call me later, I have not heard from you since you moved. Figured you have been getting settled in and all..
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  • ben62670
    ben62670 Posts: 15,969
    edited September 2010
    I still love you, but you never answer the phone!
    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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  • Toolfan66
    Toolfan66 Posts: 17,254
    edited September 2010
    LOL i will call you Later....
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  • hearingimpared
    hearingimpared Posts: 21,137
    edited September 2010
    ben62670 wrote: »
    I still love you, but you never answer the phone!

    That's a fact JACK!!! Nor replies to PMs. . . shame on you Larry!!!:p:D
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  • Toolfan66
    Toolfan66 Posts: 17,254
    edited September 2010
    Come on fellas you know these guys had me running a muck with the ring orders...11 hour days at work as well it was crazy...

    I just got caught up last week...

    I still love ya all....;)
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  • thejck
    thejck Posts: 849
    edited September 2010
    TOOLFORLIFEFAN wrote: »
    Come on fellas you know these guys had me running a muck with the ring orders...11 hour days at work as well it was crazy...

    I just got caught up last week...

    I still love ya all....;)

    You do great work Larry.. there is nothing but love for you here on the forums. Thanks for the help with the rings as well..
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  • hearingimpared
    hearingimpared Posts: 21,137
    edited September 2010
    TOOLFORLIFEFAN wrote: »
    Come on fellas you know these guys had me running a muck with the ring orders...11 hour days at work as well it was crazy...

    I just got caught up last week...

    I still love ya all....;)

    This are no kissy face icons here. hehehe!
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  • thejck
    thejck Posts: 849
    edited September 2010
    Larry/Ben,
    Do I have to mail the inductor at the bottom of the board (The one screwed to the plate) to Ben along with the boards? From the diagram it shows that that inductor has a slight difference between the 2 versions. (.8mH). This is for the TL upgrade.
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  • Toolfan66
    Toolfan66 Posts: 17,254
    edited September 2010
    Do not send the Inductor.... Ben will not need it..
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  • michaeljhsda2
    michaeljhsda2 Posts: 2,184
    edited September 2010
    TOOLFORLIFEFAN wrote: »
    Do not send the Inductor.... Ben will not need it..

    +1



    mjh
    SDA SRS 2.3TL's
    Silk Audio MS-90-BT integrated tube amp
    Yaqin MS-20L integrated tube amp
    SDA 2B TL's
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