38Hz LF Limit, High Power handling, High Efficiency
Low distortion, Low thermal compression
Laminar vents
Integrated locking feet
Designed with Cardioid Sub Arrays in mind


The RMS-Acoustics VC115Si is a compact, high output subwoofer designed to extend the low frequency bandwidth of the variable curvature (VC) family of products. The VC115Si is the recommended subwoofer for the VC system and well suited for use with the coaxial C series from RMS-Acoustics. Combinations of VC10 curvilinear source modules can be flown or stacked with VC115Si subwoofers via the integrated rigging plates. The VC115Si can be deployed in standard or cardioid configurations, with dedicated presets for each configuration, in flown, or stacked configurations.

VC115Si features one high excursion, direct radiating 15‘‘ transducer mounted in a bass-reflex tuned enclosure. It operates from 40 Hz to 100 Hz when associated with VC10 and from 38 Hz to 90 Hz when used as a general ground support subwoofer. The cabinet is made of premium exterior grade Baltic birch plywood to ensure maximum acoustical and mechanical integrity. The VC15S features laminar vents that significantly reduce turbulence and port noise at high drive levels.

The VC115Si subwoofer provides high impact, high sensitivity, low thermal compression and incredibly low distortion, even at the highest drive levels. These combined properties deliver the sonic qualities of precision and musicality.

The optimum processed loudspeaker solution for the RMS-Acoustics VC Family are Linea Research C and M series amplifiers, with proprietary presets provided by RMS-Acoustics.


System Sensitivity (1w, 1m)^1 97dB (2.9V @ 100Hz, 1W 1m)
Frequency Response(-10dB) 38Hz-100Hz 0dB point taken at 60Hz, processed
Frequency Response (±3dB) 42Hz-150Hz 0dB point taken at 60Hz, processed
Maximum SPL Continuous (1m)^2 127dB
Maximum SPL Peak (1m) 133dB
Long Term Power Rating (IEC)^3 LF 800W Continuous, 1600W Program, 3200W Peak 100Hr
Long Term Power Rating (AES)^4 LF 1000W (2000W Peak) 2 hr
Maximum Input Voltage LF 89.5 V RMS (2 hrs), 127V Peak
Nominal Coverage Pattern Omni directional, variable directivity with cardioid presets and custom modification
System Crossover Proprietary DSP via Linea Research processing platform
Transducer Specifications SPKR-15-0006 LF Driver - 15” low frequency cone loudspeaker with 4” voice coil, shorting ring and high performance convective cooling technology
Impedance LF 8 Ohm
Input Connectors Dual Neutrik NL4MP Connectors
Enclosure Materials 15mm Birch Hardwood Ply 1.3mm layers
Grill Materials Cold Rolled Steel, Epoxy powder coat, Acoustically transparent black foam backing
Finishes Black finish (Standard) Polyurethane textured spray
Additional Finishes available - See Options Below
Suspension and Mounting Proprietary internal, captive rigging
Flown Array Maximum 10x VC10-15i or VC15-30i.  Number decreases by formula with VC115Si inclusion at top of array. Maximum Array weight 1300 Lb (590 kg)
Rigging Hardware VCRF1 Required Large Format Rigging Frame
VCRF-EX VCRF1 Extension arm, facilitates high uptilt, downtilt, wide spaced rigging points
Dimensions 23.7” w x 24” d x 16.88” H  (620 mm x 584 mm x 429 mm)
Weight 84 Lbs (38.2 kg) Net   Shipping weight 95Lb (43.2 kg)
Finish Options -X (Weatherized), -W (White), -C (Custom Color) Upcharge applies
Free field, semi anechoic conditions.  To compare with half space measurements, add 6dB to maximum output specifications.
1. Full Space, 4pi conditions
2. Measured Maximum SPL, based on power compression observation of 3dB
3. IEC Shaped pink noise with 6dB Crest Factor
4. AES Standard AES2-2012, one decade pink noise with 6dB Crest factor within device’s applicable operating band, free air. Standard AES 2 hr rating are specific for low frequency transducers.