Features
  • 1200 Watt
  • 131 dB max SPL
  • 90° x 60° coverage
  • FiRPHASE for 0° Phase Response
  • 15” Woofer, 2.5” v.c.
  • 1.0” C.Driver, 1.4 v.c.
  • Multifunctional cabinet

The ST 15 SMA II is an active ultra-compact and fully featured speaker for rental companies and musicians. Designed as a professional sound reinforcement solution with up to 131 dB SPL, low distortion and unmatched reliability, it shines in high powered music applications, DJ sets, and vocal reinforcement, with or without subwoofers.


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Part number:

13000638
ST 15-SMA II
220-240V, EAN 8024530017545

13000639
ST 15-SMA II
115V, EAN 8024530017828

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Superior transducers

The woofer delivers a deep and accurate reproduction of the lower frequency range while the high quality 1.4” horn loaded compression-driver offers a very open and natural midrange sound and extreme precision in high frequency reproduction.

Amplifier and DSP

The two-channel 1200 W amplifier features a solid machined aluminum structure, which not only stabilizes the amplifier during transportation but also assists in heat dissipation. The internal DSP has limiters and protection for the transducers and includes the special FiRPHASE filters to achieve coherent distribution of sound for all listeners without phase distortion. A single button shapes the sound for background music purposes, when the system plays at minimum volume levels.
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Built for your everyday use

The ST multifunctional cabinet is built of high strength birch plywood coated with black textured polyurethane. A sturdy powder-coated metal grille protects the front, and an acoustically transparent sound foam backing on the inside of the grille ensures protection from dust and humidity. For use as a speaker on a pole, a steel cap is available on the bottom.

FRFR full range flat response

The ST active stage monitor perfectly complements your multi-FX/amp modeler. FRFR stands for Full Range Flat Response, which means you can model your sound through a remarkably neutral speaker. With 1200 W, flat frequency and 0° phase response, your ST speaker is your cabinet as well as your reference monitor. Classic guitar cabinets have their characteristic sound and that can be a bottleneck when you deal with contemporary guitar effects, especially on stage. Your guitar sound can be adapted and changed to your tastes, with complete freedom and all the power needed.
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New perspective on linearity

RCF speakers are designed using a proprietary and advanced digital FiR technology, conceived to deliver transparent sound, absolute clarity, and perfect imaging to the listener.
The special FiRPHASE filters allow for coherent distribution of sound for all listeners without phase distortions, ensuring minimum latencies in the system.
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Specifications
Acoustical specifications
Frequency Response
45 Hz ÷ 20000 Hz
Max SPL @ 1m
131 dB
Horizontal coverage angle
90°
Vertical coverage angle
60°
Transducers
Compression Driver
1.0'', 1.4'' v.c
Woofer
15'', 2.5'' v.c
Input/Output section
Input signal
bal/unbal
Input connectors
XLR, Jack
Output connectors
XLR
Input sensitivity
-2 dBu/+4 dBu
Processor section
Crossover Frequencies
1400 Hz
Protections
RMS, HF
Limiter
Soft Limiter
Power section
Total Power
1200 W Peak, 600 W RMS
High frequencies
400 W Peak, 200 W RMS
Low frequencies
800 W Peak, 400 W RMS
Cooling
Convection
Connections
VDE
Standard compliance
Safety agency
CE compliant
Physical specifications
Handles
1 side
Pole mount/Cap
Yes
Color
Black
Size
Height
362 mm / 14.25 inches
Width
673 mm / 26.5 inches
Depth
473 mm / 18.62 inches
Weight
20.3 kg / 44.75 lbs
Shipping information
Package Height
733 mm / 28.86 inches
Package Width
421 mm / 16.57 inches
Package Depth
502 mm / 19.76 inches
Package Weight
21.7 kg / 47.84 lbs
Accessories
Downloads
MANUALS
PDF
234 KB
19-07-2019
SPECIFICATIONS
PDF
4.4 MB
16-05-2024
PDF
4.4 MB
16-05-2024
PDF
4.4 MB
16-05-2024
PDF
4.4 MB
16-05-2024
STANDARD COMPLIANCES
PDF
34 KB
24-01-2024
DRAWINGS
DXF
27.1 MB
22-01-2024
PDF
2.2 MB
22-01-2024
DXF
925 KB
22-01-2024