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Peerless by Tymphany GBS-85N25PR07-04 3-1/2" Paper Dome Low Profile Woofer

Peerless by TymphanyPart # 264-1684
Model: GBS-85N25PR07-04
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The low profile GBS-85N25PR07-04 from Peerless can deliver high-end performance even when space is at a minimum. With a smooth response throughout the useable frequency range, and an extremely well controlled dispersion, this unique driver can deliver hi-fi sound from the shallowest designs.

Key Features

  • Less than 1" mounting depth for installation almost anywhere
  • 6-layer voice coil improves BL while lowering mounting depth
  • Unique dome design allows room for higher excursion
  • 4 ohm impedance is ideal for use in battery powered systems
Your Price: $21.09
MSRP: $27.99
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Estimated back in stock 9/26/2025
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Overview

Peerless by Tymphany GBS-85N25PR07-04 3-1/2" Paper Dome Low Profile Woofer

The Peerless GBS-85N25PR07-04 3-1/2" 4 ohm woofer provides a very slim profile that is capable of large excursion. The paper dome helps to extend the piston bands in the working range to deliver flat response from 150 Hz to 1,000 Hz with remarkable off-axis performance. A highly optimized neodymium motor and unique suspension layout combine to give a cost effective solution in a previously unavailable package.

Product Details

BrandPeerless by Tymphany
ModelGBS-85N25PR07-04
Part Number264-1684
UPC848864051116
Unit of MeasureEach
Weight0.3

Product Specifications

Nominal Diameter3-1/2"
Power Handling (RMS)12 Watts
Power Handling (MAX)24 Watts
Impedance4Ω
Frequency Response100 to 800Hz
Sensitivity84.95dB 2.83V/1m
Voice Coil Diameter1"

Thiele-Small Parameters

Resonant Frequency (Fs)133.32Hz
DC Resistance (Re)3.47Ω
Voice Coil Inductance (Le)0.35mH
Mechanical Q (Qms)4.75
Electromagnetic Q (Qes)0.77
Total Q (Qts)0.66
Compliance Equivalent Volume (Vas)0.015ft³
Mechanical Compliance of Suspension (Cms)0.248mm/N
BL Product (BL)4.66T·m
Diaphragm Mass Inc. Airload (Mms)5.74g
Maximum Linear Excursion (Xmax)1.7mm
Surface Area of Cone (Sd)35.26cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialRubber
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter3.52"
Baffle Cutout Diameter3.07"
Depth0.93"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.06ft³
Sealed F3159.8Hz
Vented Volume0.06ft³
Vented F395.6Hz

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