ATC SSM12i Pro
ATC Loudspeakers SSM12i Pro
Two-way surround studio monitor
ATC The SSM12i Pro is the smallest and least expensive model in the SSM series, based on the proven 2-way near-field loudspeaker SCM12 Pro and equipped with a 150-millimeter (6-inch) CLD mid-bass driver and SH25-76 tweeter. It is a passive studio monitor for wall or ceiling mounting, featuring a shallow cabinet depth, patented mounting system and reinforced enclosure. The SSM12i Pro series is designed for surround and immersive audio installations, especially in smaller control rooms.
The SSM series design is distinguished by its very shallow chassis, with the 2-way SSM12i Pro measuring just 147 mm / 5-13/16" mounted flat and including mounting hardware.
The SSM Series loudspeakers not only have a very shallow enclosure, but also a mounting system that allows them to be mounted flat to a wall or ceiling, while allowing the enclosure to be tilted away from the mounting surface toward the listener. Pointing the speaker toward the listening area preserves frequency response and provides excellent balance and a more precise sound image. Finally, the speakers can be configured to be mounted not only in a vertical orientation, but also in a horizontal one, a valuable feature for ceiling mounting, as it maximizes the height of the source, but minimizes the projection of the enclosure into the workspace.
The SSM Series monitors are designed and engineered to work seamlessly with the entire range of ATC studio monitors. Mounting components are simple and very sturdy, and installation is simplified with drilling templates included with the products. Safety is very important, so the enclosures are reinforced with steel plates and equipped with a safety mounting point to secure the speaker in the very rare event of a failure of the main mount.
Key features:
- Mounting to wall or ceiling
- Shallow housing - depth 147 MM / 5 13/16” (flat mount)
- Articulated mounting elements allow you to optimally adjust the angle of the speaker to suit your listening position
- ATC SB45-150CLD mid-bass speaker with limited damping (CLD) function
- The hermetic design of the enclosure ensures consistent low-frequency reproduction quality when surface-mounted.
- ATC SH25-76 dual-suspension tweeter
- Steel reinforced housing with safety strap for reliable installation*
- 6-year warranty.
Acoustic Specifications:
- Transducers
- Bass/Midrange: 1 x SB45-150CLD 8Ω
- High frequencies: 1 x SH25-76 6Ω - Low frequency cutoff: (-6dB, half-space): 48Hz
- High frequency cutoff: 22kHz
- Crossover frequency: 2.2kHz
- Recommended power amplifier: 75 watts to 300 watts
- Input connectors: 4 mm terminals/plugs, single pair.
- MaxSPL: 108 dB continuous, 114 dB peak (per pair, IEC weighted pink noise, 1 m half-space)
- Sensitivity: 85 dB/W at 1 m
- Nominal impedance: 8 Ω
- Minimum impedance: 5 Ω
Physical specifications:
- Net weight: 14.8 kg / 32.6 pounds
- Product dimensions: (H x W x D): 517 x 315 x 147 mm / 203/8 x 123/8 x 513/16 inches
Acoustic Specifications:
- LF: 1 x SB50-164SC 8Ω
- Mid: 1 x SM75-150 16Ω
- HF: 1 x SH25-76S 6Ω Compact
- Low frequency cutoff: 47Hz (-6dB).
- High frequency cutoff: 25kHz (-6dB).
- Max SPL: 109dB continuous/ 115dB peak (Measured for a pair of monitors, IEC Weighted Pink Noise, 1m).
- Sensitivity: +4dBu ref 92dBC (Low band boost 0dB, Input sensitivity 1V, Pink noise).
Electronic specification:
- Symmetrical input: 1 x Rear panel mounted female XLR socket, pin 2 hot.
- Input impedance: 20kΩ.
- Input CMRR: >82dB (10kHz).
- Input sensitivity control: stepless variable from 2.2dBu - 8.2dBu / 1Vrms - 2Vrms (-6dB)
- Lower band boost control: infinitely variable from 0dB to +3dB.
- Crossover: Linkwitz-Riley 4th order, 380Hz and 3.5kHz division frequencies.
- Frequency response: 200kHz (-3dB).
- Amplifier: class A/B MOSFET
- Amplifier power: LF 150W (8Ω), MF 60W (8Ω), HF 32W (6Ω)
- THD+N: <0.003%/-92dB (1kHz, 1dB below rated power, 90kHz BW)
- Limiter: ATC Active FET Momentary Gain Reduction, limiter operation indicated by LED on front panel
- Power supply: 220-230V or 115V
- Power consumption: inactive 24W/35VA. 1/8 power 117W/159VA. full power 255W/324VA.
- Heat generated: inactive 82BTU/hr. 1/8 power 335 BTU/hr. full power 358BTU/hr.
- Net weight: 25.1kg
- Dimensions: 271 x 430 x 411mm (H x W x D)
- Weight with packaging: 28.15kg
- Package dimensions: 370 x 560 x 510mm (H x W x D)




