# \#ts-parameters

**URL:** https://discourse.midwestaudio.club/tag/ts-parameters/182.md

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## [2027 Iron Driver T/S measurements: SB13PFCR25-XX](https://discourse.midwestaudio.club/t/2027-iron-driver-t-s-measurements-sb13pfcr25-xx/864)

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**Author:** [@4thtry](https://discourse.midwestaudio.club/u/4thtry)\
**Replies:** 2\
**Last updated:** [November 1, 2026, 5:47pm UTC](https://discourse.midwestaudio.club/t/2027-iron-driver-t-s-measurements-sb13pfcr25-xx/864 "2026-11-01T17:47:41Z")

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I just measured the T/S parameters on my 2027 Iron Driver woofers. I thought that other builders might be interested in comparing measurements, so I am starting a new thread. Measurements can vary quite a bit based on…