O Audio no longer offers TC Sounds drivers.  This page is offered as a design reference for our customers.
Traits of the TC Sounds TC2+ family of subwoofer drivers:
  • Powerful, precise, linear bass
  • Stiff, concave aluminum cone
  • Substantial high excursion linear motor structure with copper shorting rings (to reduce distortion)
  • Voice coil leads are interwoven into the spider to eliminate "lead slap" during extreme excursions  
  • Convenient spring loaded gold plated terminals.
  • Open four-spoke die cast aluminum basket with mounting gasket
  • Rugged construction throughout
  10" SVC
10" DVC (VC in series)
12" SVC
12" DVC (VC in series)
15" SVC
Nominal Impedance (Ohms)
4
4 (per voice coil)
4
4 (per voice coil)
4
Qts
0.226
0.470
0.298
0.374
0.368
Qes
0.241
0.540
0.322
0.422
0.398
Qms
3.748
3.604
4.001
3.265
4.803
Fs (Hz)
20.3
31.3
21.8
22.7
17.7
Res (Ohms)
3.1
7.62
3.1
7.5
3.1
Le at 1kHz (mH)
2.8
4.7
3.0
4.7
2.6
Effective Diameter (m)
0.205
0.205
0.252
0.252
0.330
Vas (liters)
81.5
39.6
137.7
130.0
357.2
Mms (g)
115.1
99.6
135.5
132.2
233.8
Cms (mm/N)
0.532
0.259
0.394
0.372
0.348
BL (N/A)
13.76
16.63
13.35
18.29
14.20
SPL (dBSPL @ 1W @ 1m)
86.4
85.4
88.3
87.4
88.9
Rated Power (Watts RMS)
400
400
400
400
400
Xmax (mm one-way)
20
20
19.3
19.3
18.1
Baffle Cutout Diameter
(inches)
9.29
9.29
11.08
11.08
14
Mounting Depth (inches)
5.5
5.5
6.375
6.375
7.5
All T/S parameters were measured with the full version of PRAXIS under the following conditions:
    -2.85V across the voice coil
    -Using a 1 second chirp stimulus from 10Hz to 20kHz
    -5 Ohm series resistor
    -PRAXIS uses the added mass Vas measurement method.  For Vas measurements, 104 grams of added mass was used
    for the TC2+ 10” and TC2+ 12” drivers and 208 grams of added mass was used for the TC2+ 15” driver.  In response to
    numerous questions, no, you do not need to add any mass to the driver for normal operation or if you decide to
    measure Vas using a different method.
TC Sounds TC2+ 12in SVC Impedance Plot
TC Sounds TC2+ 10in Impedance Plot
TC Sounds TC2+ 12" SVC Impedance Plot
Click for Larger Picture
TC Sounds TC2+ 10" SVC Impedance Plot
Click for Larger Picture
TC Sounds TC2+ 15in Impedance Plot
TC Sounds TC2+ 12in DVC Impedance Plot
TC Sounds TC2+ 15" Impedance Plot
Click for Larger Picture
TC Sounds TC2+ 12" DVC Impedance Plot
Click for Larger Picture
Specifications subject to change without notification.
Copyright 2007   ©   O Audio, LLC
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TC2+ Subwoofer Drivers