Steinway & Sons



The In-Wall series speakers are specifically designed to be placed behind acoustically transparent screens, fabric panels, and metal mesh grills. With invisible presence, the In-Wall series offers exceptional performance, versatility, and unbeatable appeal. This series can be mixed-and-matched with any other item in our product range while maintaining the outstanding performance of each individual component.

The grand in-wall speaker

Designed for use as a front speaker in medium and large high-performance home theaters, the IW-66 is a grand performer. It combines striking power with advanced technologies to ensure the most stunning sound experience possible in medium and large home theaters.

Model LS in a living room with a piano
Home cinema with in-wall speakers

Unique features

Steinway & Sons IW-66 in-wall speaker
Triple AMT tweeter with focusing array

The IW-66 has a unique focusing array tweeter principle (FAT), consisting of three Air Motion Transformer tweeters, two of them angled. This leads to an even vertical sound dispersion angle on axis, achieving a linear frequency response and the same relative sound level in all rows, even with elevated tiers.

Powerful sound and high SPL

With six midrange drivers and three AMT tweeters the IW-66 reaches a very high sound pressure level (120 dB) with great dynamic headroom, high sensitivity, and excellent power handling. This makes the IW-66 suitable for large high performance home theaters.

Steinway & Sons IW-66 in-wall speaker
Steinway & Sons IW-66 in-wall speaker
Very rigid yet shallow construction

The IW-66 is a very rigid construction where the enclosures for the midrange drivers are internally braced and separated from the tweeters. The construction minimizes mechanical resonance and sound coloration even when playing at maximum volume level. The overall cabinet design is very shallow, which makes it easy to install.



Description: In-wall speaker
Frequency response: 70 – 20k Hz
Max SPL @ 1m: 120 dB
Amplification needed: 2 channels
Dimensions (H x W x D): 140.0 x 35.0 x 20.0 cm / 55.1 x 13.8 x 7.9 in
Weight: 44.0 kg / 97.0 lbs
Finish: Matte black

Fact sheet
Installation manual
Technical drawings



Steinway Surface
D-Tools logo

This product is listed in D-Tools.

Integrated system approach

All Steinway & Sons products can be combined for individual Steinway & Sons sound systems and follow our integrated system approach. The chosen loudspeakers are programmed into the processor, and amplifiers are connected reliably using our own digital signal connection. RoomPerfect™ will further acoustically calibrate the loudspeakers to the room. With this integrated system approach, we can guarantee the legacy of absolute perfection that comes with the Steinway & Sons partnership. A perfection which can never be attained mixing products “off the shelf” from different manufacturers.

This loudspeaker can be combined with the following models, depending on the room and customer wishes.

LS woofer