General Forum - PD104 instead of LS1004 in a TMS2

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PD104 instead of LS1004 in a TMS2

Printed From: Speakerplans.com
Category: General
Forum Name: General Forum
Forum Description: Open Discussion / Questions
URL: https://forum.speakerplans.com/forum_posts.asp?TID=109133
Printed Date: 27 March 2026 at 6:53am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com

Topic: PD104 instead of LS1004 in a TMS2

Posted By: Forest Operator
Subject: PD104 instead of LS1004 in a TMS2
Date Posted: 17 June 2025 at 5:21pm

We are refurbishing a pair of turbosound Tms2s and both the mids are blown. Been trying to find recone kits or replacement drivers and have found a pair of PD104s

They aren't quite the same spec as the original drivers, but they are the same size - could we get away with using them or will the fact that they are 8ohm 500w instead of 16ohm 100w melt the internal crossover or something? I'm assuming they will seem louder as well

Replies:

Posted By: Lucasdude
Date Posted: 17 June 2025 at 9:14pm

https://forum.speakerplans.com/turbosound-ls1004-aka-pd-104-reconing_topic76988.html" rel="nofollow - https://forum.speakerplans.com/turbosound-ls1004-aka-pd-104-reconing_topic76988.html

Posted By: Lucasdude
Date Posted: 17 June 2025 at 9:16pm

"..you need ls-1004s for the mid, the driver has nearly no dust cap, anything else will foul the phase plug.."

Might be the most important takeaway from that post.

Posted By: Larry23
Date Posted: 11 July 2025 at 10:52pm

The change in impedence will also alter the crossover frequency.