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Tectonic TEBM65C20F-4 3-1/2" BMR Full-Range Speaker 4 Ohm

Tectonic
Part #297-2164

Tectonic TEBM65C20F-4 3-1/2" BMR Full-Range Speaker 4 Ohm

Tectonic
Part #297-2164  
Model: TEBM65C20F-4
For audio applications that require extended frequency response, and superior off-axis response in a small form factor, choose the Tectonic TEBM65C20F-4 3-1/2" full-range transducer. Nearly all of the audio in the pass band of the driver is available up to 100 degrees off-axis.
Key Features
  • Amazing off-axis frequency response
  • Small form factor with impressive Xmax
  • Perfect for modern speaker applications such as sound bars
Your Price: $15.82
MSRP: $49.99
Save $34.17 (68%)
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Estimated back in stock 1/10/2025
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Overview

Tectonic TEBM65C20F-4 3-1/2" BMR Full-Range Speaker 4 Ohm

The Tectonic TEBM65C20F-4 Balanced-Mode Radiator (BMR) features extended frequency response and wide dispersion compared to that of a conventional drive unit. It combines the benefits of Tectonic's bending-wave technology and pistonic modes of operation. It is ideally suited for compact audio applications that require a full-range, high performance acoustic solution, such as a sound bar. An advanced ferrite-based motor is combined with special cone dampers to ensure a small size that outperforms conventional drivers, especially in off-axis performance.

Product Details

BrandTectonic
ModelTEBM65C20F-4
Part Number297-2164
UPC848864058078
Unit of MeasureEach
Weight1.65

Product Specifications

Nominal Diameter3-1/2"
Power Handling (RMS)30 Watts
Power Handling (MAX)60 Watts
Impedance4Ω
Frequency Response60 to 20,000Hz
Sensitivity81dB 2.83V/1m
Voice Coil Diameter1"

Thiele-Small Parameters

Resonant Frequency (Fs)97Hz
DC Resistance (Re)3.8Ω
Voice Coil Inductance (Le)0.03mH
Mechanical Q (Qms)7
Electromagnetic Q (Qes)0.94
Total Q (Qts)0.83
Compliance Equivalent Volume (Vas)0.035ft³
Mechanical Compliance of Suspension (Cms)0.47mm/N
BL Product (BL)3.75T·m
Surface Area of Cone (Sd)37.2cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialRubber
Basket / Frame MaterialPolymer
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter4.25"
Baffle Cutout Diameter3.25"
Depth2.125"
# Mounting Holes6

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.06ft³
Sealed F3101.3Hz
Vented Volume0.08ft³
Vented F375.1Hz

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