Steinway & Sons

LS Concert


The LS series is the number one choice for larger rooms and spaces with rows of elevated seats. The series features an innovative line source approach incorporating floor-to-ceiling stackable speakers and boundary woofers. This allows sound to propagate over long distances, thus ensuring tonal consistency by reducing echoes, especially in large rooms. Line source technology means that every seat in the listening space has the same volume level and offers the same sound experience, from the front to the rear of the room.

Floor-standing speakers

The in-room LS speakers blend the dipole technology first introduced in the flagship Model D with the innovative line source technology from the LS. At over 8 and 6.5 feet tall, the open baffle LS speakers are for very large rooms where a sound system must sound – and look – impressive. The series consists of two full range floor-standing dipole speakers, the LS Concert and LS Studio, which emit sound from both front and back.

LS home theater
Lifestyle picture of Model LS
Close up of Model LS

Unique features

LS Concert speaker close up
The best solution for even sound across the room:
Line Source

The LS speaker is a very tall and slim loudspeaker, for a reason: This is a line source with several tweeters and midrange drivers arranged in a tall vertical line. This gives a very even and consistent sound radiation into the room, with less sound energy directed towards the ceiling and floor, and provides a high-efficiency design with similar high volume levels across the room. The result is a more consistent sound experience on every seat and every row.

Remarkably slim dipole design

The LS speaker is a dipole design with the tweeters and midrange drivers mounted in an extremely rigid, open aluminum frame, exiting the sound in the room like an instrument would. An open dipole speaker is free from the sound colorations of conventional speaker cabinets and also makes a striking design statement in the room, from all angles around the loudspeaker. The gold- or chrome-plated details, high-quality-lacquered side panels and the elegant black strings give the LS its unmistakable Steinway & Sons appearance.

LS Concert back side
LS Concert speaker close up
Advanced tweeter line-array

The LS speakers use the company’s own Air Motion Transformer tweeters in a line array, achieving a completely clear, distortion-free performance even at the highest volume levels. The Air Motion Transformer comprises of an ultra-thin, folded Kapton diaphragm between extremely powerful neodymium magnets. Compared to conventional soft dome tweeters, this tweeter design provides a much larger yet also much lighter diaphragm area to reproduce the highest frequencies and highest volume levels effortlessly.

Technical drawing of Model D


Description: Floor-standing dipole line source speaker
Frequency range: 120 – 22k Hz
Max SPL @ 1m: 132 dB*
Amplification: A1 or A2 amplifiers, 2 x 400 watt
Amplification needed: 2 channels
Dimensions (H x W x D): 249.1 x 40.0 x 46.0 cm / 98.1 x 15.7 x 18.1 in
Weight: 73.0 kg / 161.0 lbs
Finish: High-gloss black with matte gold or black accents
* Equivalent to a conventional point source SPL @ 1m

Fact sheet
Installation manual
Technical drawings



Steinway Surface
D-Tools logo

Awards for Steinway & Sons LS Concert

Robb report award 13 for LS Concert
BOB Robb Report for LS Concert
Excite award 14 for LS Concert

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
LS center
Model M l/r in-wall