Sine Design

Peerless by Tymphany GBX-65X140N25AL00-04

woofer · EBP 71 → suits either box · nominal (full) — Peerless by Tymphany datasheet (https://products.peerless-audio.com/pdf/1646)

Thiele/Small parameters

Fs (resonance)64 Hz
Qts0.78
Qes / Qms0.899 / 6.07
Vas1.1 L
Re / nominal Z3.9 Ω / —
Xmax8.0 mm
Sensitivity—

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

Datasheet (PDF) ↗ — manufacturer-hosted

Recommended enclosures

T/S are full — fetch the datasheet for the full parameters to model a box.

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About this driver

The Peerless by Tymphany GBX-65X140N25AL00-04 is a 4.5″ woofer with a free-air resonance of 64 Hz and a total Q (Qts) of 0.78. Its efficiency-bandwidth product (EBP) of 71 points toward either alignment. See the sealed vs ported guide for how to choose.

Recommended partners

modeled estimate

The tweeters below pair well with the Peerless by Tymphany GBX-65X140N25AL00-04 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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