TECTONIC TEBM65C20F-4 Full Range BMR Speaker

Tectonic's BMR range consists of full-range speakers designed to cover a very wide part of the audible spectrum. For example, the TEBM65C20F-4 features an extended frequency response from 60Hz to 20kHz, as well as wide directivity.

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Reference : 20751
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Tectonic TEBM65C20F-4 Full Range BMR Speaker 30W 4 Ohm 81dB 60Hz-20kHz Ø7.62cm

Photo of Tectonic speaker TEBM65C20F-4

Tectonic's BMR range consists of full-range speakers designed to cover a very wide part of the audible spectrum. For example, the TEBM65C20F-4 features an extended frequency response from 60Hz to 20kHz, as well as wide directivity. Furthermore, Tectonic combines flexible wave technology and a piston mode of operation to ensure high audio performance despite a very small speaker format.

Tectonic TEBM65C20F-4 speaker dimensions

Tectonic TEBM65C20F-4 loudspeaker dimensions

Technical characteristics

Specifications
Product typeFull-range loudspeaker
Nominal diameter7.6cm (3-1/2")
Power Handling (RMS)30W
Power Handling (MAX)60W
Impedance4 ohm
Frequency Response60Hz-20kHz
Sensitivity81dB 2.83V/1m
Voice Coil Diameter2.54cm (1")
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
Material
Cone MaterialPaper
Surround MaterialRubber
Basket / Frame MaterialPolymer
Magnet MaterialFerrite
Mounting information
Overall Outside Diameter10.16 (4.25")
Baffle Cutout Diameter7.62cm (3.25")
Depth5.08cm (2.125")
# Mounting Holes6
Recommanded enclosure volume
Sealed Volume0.06ft³
Sealed F3101.3Hz
Vented Volume0.08ft³
Vented F375.1Hz
Général
Weight1.65kg
Package1x Haut-parleur large bande Tectonic TEBM65C20F-4
 
Data sheet
Speaker Power (W RMS)30
Speaker TypeFull range
Impedance (Ω)4
Loudspeaker diameter (mm)76.0
Diaphragm typePaper
Efficiency / Sensitivity (dB)81.0
Max Linear Excursion (Xmax) (mm)10.0
Lowest frequency (Hz)60
Highest frequency (Hz)20000
 
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Average votes
5.0 / 5
1 reviews
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 5/5
Date :
Excellent Full range drivers
Set this up with manufacturer specified 1.6 L cabinets (non ported) made of PETG (3D Printed Boxes). The Clarity of the drivers are remarkable for such a small size. These drivers can be run by themselves eliminating the need for a crossover and tweeter setup.

Bass is a bit on the weaker side. Complementing it with a subwoofer driver is a necessity if you are looking for a rumble.

Overall highly recommended drivers as they are quiet the underdog in the DIY space. Hope more people buy this and enjoy these.
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This review has been posted for TECTONIC TEBM65C20F-4 Full Range BMR Speaker 30W 4 Ohm 81dB 60Hz-20kHz Ø7.62cm
 
TECTONIC TEBM65C20F-4 Full Range BMR Speaker 30W 4 Ohm 81dB 60Hz-20kHz Ø7.62cm
Tectonic's BMR range consists of full-range speakers designed to cover a very wide part of the audible spectrum....

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