


ATC SCM11 Bookshelf Passive Speakers (Pair)
Description
The ATC SCM11 Bookshelf Passive Speakers (Pair) represent the next step in ATC's acclaimed Entry Series, offering greater scale, authority, and dynamic capability while preserving the accuracy and natural musical balance that have made ATC a trusted name among audiophiles and recording professionals alike.
Handcrafted in England, the SCM11 is built around ATC's proprietary 150mm CLD (Constrained Layer Damping) mid/bass driver and a 25mm soft dome high-frequency unit with a precision alloy waveguide. This carefully engineered combination delivers outstanding vocal realism, exceptional midrange transparency, and a highly coherent soundstage that allows instruments and voices to be reproduced with remarkable accuracy and focus.
The sealed cabinet design prioritizes control, timing, and tonal accuracy over exaggerated bass output, resulting in tight, articulate low frequencies and a natural presentation that remains balanced across a wide range of musical genres. Whether reproducing intimate acoustic recordings, complex orchestral works, or dynamic modern productions, the SCM11 maintains composure, detail, and musical integrity.
With its flat impedance curve and recommended amplifier power range of 75 to 300 watts, the SCM11 is designed to work effortlessly with high-quality amplification while rewarding listeners with exceptional resolution and long-term listening enjoyment. For audiophiles seeking a compact loudspeaker capable of delivering true high-fidelity performance, the SCM11 offers an authentic ATC listening experience in a beautifully crafted bookshelf design.
Key Features
- Passive two-way bookshelf speakers sold as a pair
- Handcrafted in England
- ATC 25mm Neodymium soft dome tweeter with precision alloy waveguide
- ATC 150mm CLD (Constrained Layer Damping) mid/bass driver
- In-house hand-wound precision flat-wire voice coil
- Massive optimized motor assembly
- Precision undercut bass pole design
- Sealed cabinet design for tight, controlled bass performance
- Flat impedance curve for easy amplifier matching
- Frequency Response: 56Hz – 22kHz (-6dB)
- Sensitivity: 85dB
- Nominal Impedance: 8 Ohms
- Recommended Amplifier Power: 75–300 Watts
- Bi-wire binding post connections
- Veneered Finish Options: Cherry, Black Ash
- Painted Finish Options: Satin Black, Satin White
Specifications
| Drivers | HF ATC 25mm Neodymium soft dome, Mid/LF ATC 150mm CLD |
| Matched Response | ±0.5dB |
| Frequency Response (-6dB) | 56Hz – 22kHz |
| Dispersion | ±80° Coherent Horizontal, ±10° Coherent Vertical |
| Sensitivity | 85dB @ 1W @ 1 metre |
| Max SPL | 108dB |
| Recommended Power Amplifier | 75 to 300 Watts |
| Nominal Impedance | 8 Ohm |
| Crossover Frequency | 2.2kHz |
| Connectors | Binding Posts/4mm Plugs, bi-wire |
| Cabinet Dimensions (HxWxD) | 381 x 232 x 236mm / 15.00 x 9.21 x 8.46" (grill adds 28mm depth) |
| Weight | 10.9kg |
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