Sine Design

Eminence LA6-CBMR

midrange · EBP 371 → suits a ported box · nominal (full) — Eminence datasheet (https://cdn.shopify.com/s/files/1/0270/8665/1462/files/LA6_CBMR.pdf)

Thiele/Small parameters

Fs (resonance)460 Hz
Qts0.89
Qes / Qms1.24 / 3.13
Vas0.3 L
Re / nominal Z6.3 Ω / 8 Ω
Xmax0.2 mm
Sensitivity95.3 dB (1 W/1 m, calc); 97.8 dB (2.83 V/1 m, mfr)

Published (nominal) values, params full — verify by measurement (DATS/REW) before building.

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

This is a midrange; Thiele/Small box parameters are not used for enclosure design.

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About this driver

The Eminence LA6-CBMR is a 6.5″ midrange with a free-air resonance of 460 Hz and a total Q (Qts) of 0.89. Its efficiency-bandwidth product (EBP) of 371 points toward a ported alignment. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Eminence LA6-CBMR in a two-way design — each grade is a modeled estimate of the crossover match, with a suggested crossover point. Open any pair in the guided builder to design the crossover and total the parts.

Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.

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