With high excursion capabilities and low Fs, Dayton Audio's TCP115-4 can
produce a surprising amount of bass for a 4" woofer. In addition to its low
frequency performance, this driver also performs very well through the midrange,
making this driver ideal for use in smaller 2-way designs.
Key Features
Aluminum former keeps voice coil cool for high power handling
1" diameter 4-layer voice coil improves power handling and low frequency
response
Extended pole piece creates symmetrical magnetic field for lower
distortion
Cosmetic low-profile mounting flange looks good without flush
mounting
Powerful motor for efficiency and compact enclosure
The TCP115-4 combines a large motor, 1" 4-layer voice coil, vented pole,
and a sizable rubber surround to make use of its 4 mm of XMAX. This combination
of features makes it a very versatile driver which can be used as a bass driver
in a small 2-way system, center channel, or even portable Bluetooth speaker
designs.
Product Specifications
Nominal Diameter 4"
Power Handling (RMS) 40 Watts
Power Handling (MAX) 80 Watts
Impedance 4Ω
Frequency Response 55 to 5,000Hz
Sensitivity 86.8dB 2.83V/1m
Voice Coil Diameter 1"
Thiele-Small Parameters
Resonant Frequency (Fs) 53.8Hz
DC Resistance (Re) 3.2Ω
Voice Coil Inductance (Le) 0.97mH
Mechanical Q (Qms) 3.14
Electromagnetic Q (Qes) 0.4
Total Q (Qts) 0.35
Compliance Equivalent Volume (Vas) 0.11ft³
Mechanical Compliance of Suspension (Cms) 0.88mm/N
BL Product (BL) 5.2T·m
Diaphragm Mass Inc. Airload (Mms) 9.9g
Maximum Linear Excursion (Xmax) 4mm
Surface Area of Cone (Sd) 50.3cm²
Materials of Construction
Cone Material Treated Paper
Surround Material Rubber
Voice Coil Wire Material CCA
Voice Coil Former Aluminum
Basket / Frame Material Steel
Magnet Material Ferrite
Mounting Information
Overall Outside Diameter 4.57"
Baffle Cutout Diameter 3.77"
Depth 2.32"
# Mounting Holes 4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity
suggestion)
Sealed Volume 0.06ft³
Sealed F3 122Hz
Vented Volume 0.06ft³
Vented F3 76Hz