TCP115-4 4" Poly Cone Midbass Woofer 4 Ohm

Quick Overview

With high excursion capabilities and low Fs, Dayton Audios 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.

Product Highlights

  • 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

Product Manuals / Spec Sheets / Downloads

Dayton Audio TCP115-4 Specification Sheet
Dayton Audio TCP115-4 Data Files

Buying Options

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 x-max. 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.

Model Number TCP115-4
Color Black
Unit of Measure Each
UPC 848791004629
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 2
Speaker Type Woofer
Nominal Diameter 4"
Power Handling (RMS) 40 watts
Power Handling (max) 80 watts
Continuous Program Power --
Impedance 4 ohms
Sensitivity 86.8 dB @ 2.83V/1m
Frequency Response

55 - 5

000 Hz

Voice Coil Diameter 1"
Magnet Weight --
DC Resistance (Re) 3.2 ohms
Voice Coil Inductance (Le) 0.97 mH
Resonant Frequency (Fs) 53.8 Hz
Mechanical Q (Qms) 3.14
Electromagnetic Q (Qes) 0.4
Total Q (Qts) 0.35
Diaphragm Mass Inc. Airload (Mms) 9.9 g
Moving Mass Of Diaphragm (Mmd) --
Mechanical Compliance of Suspension (Cms) 0.88 mm/N
Surface Area Of Cone (Sd) 50.3 cm²
Volume of Displacement (Vd) 20.1 cm³
BL Product (BL) 5.2 Tm
Compliance Equivalent Volume (Vas) 3.1 liters
Maximum Linear Excursion (Xmax) 4.0 mm
Drivers Mechanical Losses (Rms) --
Cone / Diaphragm Material Treated Paper
Entry / Exit Diameter --
Surround Material Rubber
Voice Coil Wire Material CCAW
Voice Coil Former Aluminum
Basket/Frame Material Steel
Magnet Material Ferrite
Overall Outside Diameter 4.57"
Overall Depth 2.56"
Baffle Cutout Diameter 3.66"
# Mounting Holes 4
Mounting Hole Diameter --
Bolt Circle Diameter --
Product Weight --