The Sandwich story, revived
LEAK is one of the great names in British hi-fi, founded by Harold Leak in 1934 and celebrated for classics like the Stereo 20 amplifier and the original Sandwich loudspeaker. Now part of IAG, alongside sister brands Wharfedale, Quad, Mission and Audiolab, the modern range is styled after LEAK's mid-century designs and carries that acoustic lineage forward. The two loudspeakers here, the LEAK Sandwich 150 and the LEAK Sandwich 250, revive the technology that gave the range its name.
What the Sandwich cone actually is
The Sandwich cone bonds thin aluminum skins to a PMI structural foam core. The goal is a cone that stays rigid and piston like across its working range while remaining light and well damped, which helps keep the sound clean and controlled. Both models use this construction for their bass and midrange drivers and pair it with a 1.2 in coated textile dome tweeter. Both are vented-box (bass reflex) designs finished in real walnut veneer with aluminum trim, so they share a family look as well as a family sound.
One point to keep in mind for every model here: these are passive loudspeakers, so each needs an amplifier to bring it to life. Within the LEAK range the Stereo 130 and the more powerful Stereo 230 are natural partners.
The lineup by tier
Sandwich 150: the compact two-way
The LEAK Sandwich 150 is a two-way standmount built around a 6.5 in aluminum-foamcore Sandwich bass and mid driver crossing over to the textile dome tweeter at 2.4kHz. It offers a frequency response of 44Hz to 26kHz plus or minus 3dB with bass extension quoted to 38Hz, sensitivity of 86.5dB, a nominal 6 ohm impedance (8 ohm compatible, 4 ohm minimum) and a recommended amplifier power of 25 to 150W. At 16.4 x 9.9 x 12.4 in and 27.1 lbs each, it is designed to disappear neatly into smaller and medium rooms.
Sandwich 250: the larger three-way
The LEAK Sandwich 250 adds a dedicated midrange to become a three-way. It uses an 11 in Sandwich woofer, a 4.25 in Sandwich midrange and the same 1.2 in coated textile dome tweeter, with crossover points at 470Hz and 3.1kHz. It reaches 42Hz to 26kHz plus or minus 3dB with bass extension quoted to 32Hz, offers 88.5dB sensitivity, the same 6 ohm nominal impedance (8 ohm compatible, 4 ohm minimum), a recommended amplifier power of 25 to 250W and a higher peak SPL of 112dB versus 106dB for the 150. It is a substantial standmount at 25.8 x 14.5 x 13 in, and optional matching stands are available.
How they differ, and who each suits
These two loudspeakers are not a case of better or worse, they are designed for different rooms and goals. The Sandwich 150 is a compact two-way that keeps the signal path simple and fits comfortably where space is limited. The Sandwich 250 is a larger three-way that hands midrange duties to a dedicated driver, adds deeper bass extension and a higher peak SPL, and is built to fill a bigger room with more headroom.
- Sandwich 150 suits apartments, studies, bedrooms and small to medium living rooms, and listeners who want a tidy standmount that images well without dominating the space.
- Sandwich 250 suits medium to larger rooms, listeners who want lower reach and more effortless volume, and those who value a dedicated midrange for its own presentation.
Which should you buy, by scenario
You have a small or acoustically modest room
Choose the Sandwich 150. Its footprint and two-way design make it easy to place and easy to drive.
You have a larger room or want more low end reach and headroom
Choose the Sandwich 250. The three-way layout, larger woofer and higher peak SPL are built for scale.
You are pairing with a LEAK amplifier
The Stereo 130 is a fine match for the Sandwich 150 in a compact system, offering an ESS Sabre ES9018K2M DAC, MM phono, Bluetooth, HDMI ARC and a headphone amp. If you are driving the Sandwich 250 in a bigger space, the more powerful Stereo 230, with 2 x 75W into 8 ohms and the higher ES9038Q2M DAC, gives you extra reserves.
You want to build a full source-to-speaker system
Add a source to either amplifier. The TruStream network streamer brings its own ES9038Q2M DAC with balanced and RCA outputs and supports Roon Ready, Tidal, Qobuz, Spotify Connect and AirPlay 2. For disc playback, the CDT is a dedicated CD transport with no built-in DAC, so it relies on the DAC inside a Stereo 130 or Stereo 230, or an outboard DAC. Both the TruStream and the Stereo amplifiers can drive a system directly.
Come and listen
All Elite Audio is an authorized LEAK dealer with a showroom in Timonium, Maryland. Demo units rotate and not every model is always set up, so we invite you to contact AEA to arrange a listen and hear which Sandwich loudspeaker suits your room and system best.