Built to the same exacting standard, the C15 and C12 share a strong visual aesthetic and have been designed to seamlessly and discreetly blend into any environment. Straight out of the box, your C-series monitor will operate on a single amplifier channel without the need for additional controllers or EQ.

Identical in cross section, the monitor boasts a low-profile wedge-shaped enclosure containing coaxial chassis with a 15" low frequency woofer and a 1.4" mid-high frequency tweeter with a 3" voice coil. The large mid-high horn ensures perfect mid-high frequency dispersion while its passive frequency crossover produces accurate and phase-coherent summation of low and mid-high frequencies. The low crossover frequency of the mid-high driver is particularly suited to very high quality speech reproduction.

Especially when additional bass extension is required, the C15 will offer a robust low end response, refined with the enclosure's generously dimensioned bass reflex channels for a tightly defined, punchy response that you will feel as well as hear.

The C15 also benefits from the added versatility which comes from being able to run in two-way active mode. For flexibility, the C15 can be mounted on a pole, or on surfaces using the specially developed svivel bracket SBC15 which attaches using a latching mechanism, meaning assembly does not require tools or separate, easily lost parts.

No matter whether they are used as monitors or as full range speakers, TW AUDiO's C-series enclosures combine high performance, versatility and full integration with the entire TW AUDiO range.

C15 Coaxial reference.

Technical data

DriversLF: 1 × 15"
HF: 1 × 1.4" coaxial exit with 3" diaphragm
Frequency range55 – 17000 Hz
Power capacity program / peak800 W (bi-amp LF), 320 W (bi-amp HF)
800 / 1600 W (passive)
Impedance8 Ohms (bi-amp LF), 20 Ohms (bi-amp HF)
8 Ohms (passive)
Coverage (h x v)in monitor use 55° × 70° HF-horn, rotatable
Sensitivity 1 W / 1 m101 dB
SPLmax / 1 m133 dB
ConnectionNL4 1± HF / 2± LF (bi-amp)
NL4 1± (passive)
Dimensions (H x W x D)348 × 605 × 500 mm [13.7 × 23.82 × 19.69 in]
Weight23,8 kg [52 lbs]
FinishWarnex texture paint
AccessoriesSBC15, CaseC15, QBC15
Optionspassive-biamped swichable, RAL colors



C15_manual_EN_1.0 (PDF - File)
13. October 2016 - Revision 1.0
C15 Quick Setup Guide (PDF - File)
22. March 2016 - Revision 1.1


C15 DXF 2D (ZIP - File)
16. May 2019 - Revision 1.0
C15 PDF Drawings (PDF - File)
16. May 2019 - Revision 1.0


C15-70x55 (GLL - File)
26. January 2022 - Revision 2.2
C15-55x70 (GLL - File)
26. January 2022 - Revision 2.2

Accessories C15

References C15

VERA20i house of worship

With a seating capacity of 2,000, Light Presbyterian Church in the Canadian city of Mississauga is a Gospel-centred church that serves a multi-ethnic and multi-generational community

California Festival Summer with VERA

VERA20 and VERA36 sound reinforcement systems have won over Californian audiences this summer courtesy of appearances at a succession of highly varied regional festivals.
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