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


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10" SVC
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10" DVC (VC in series)
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12" SVC
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12" DVC (VC in series)
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15" SVC
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Nominal Impedance (Ohms)
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4
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4 (per voice coil)
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4
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4 (per voice coil)
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4
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Qts
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0.226
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0.470
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0.298
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0.374
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0.368
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Qes
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0.241
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0.540
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0.322
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0.422
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0.398
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Qms
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3.748
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3.604
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4.001
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3.265
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4.803
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Fs (Hz)
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20.3
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31.3
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21.8
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22.7
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17.7
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Res (Ohms)
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3.1
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7.62
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3.1
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7.5
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3.1
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Le at 1kHz (mH)
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2.8
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4.7
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3.0
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4.7
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2.6
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Effective Diameter (m)
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0.205
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0.205
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0.252
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0.252
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0.330
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Vas (liters)
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81.5
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39.6
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137.7
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130.0
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357.2
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Mms (g)
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115.1
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99.6
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135.5
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132.2
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233.8
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Cms (mm/N)
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0.532
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0.259
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0.394
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0.372
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0.348
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BL (N/A)
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13.76
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16.63
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13.35
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18.29
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14.20
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SPL (dBSPL @ 1W @ 1m)
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86.4
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85.4
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88.3
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87.4
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88.9
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Rated Power (Watts RMS)
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400
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400
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400
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400
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400
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Xmax (mm one-way)
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20
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20
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19.3
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19.3
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18.1
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Baffle Cutout Diameter (inches)
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9.29
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9.29
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11.08
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11.08
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14
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Mounting Depth (inches)
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5.5
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5.5
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6.375
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6.375
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7.5
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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+ 12" SVC Impedance Plot Click for Larger Picture
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TC Sounds TC2+ 10" SVC Impedance Plot Click for Larger Picture
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TC Sounds TC2+ 15" Impedance Plot Click for Larger Picture
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TC Sounds TC2+ 12" DVC Impedance Plot Click for Larger Picture
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Specifications subject to change without notification.
Copyright 2007 © O Audio, LLC
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