Two Takes on the Same Sandwich Philosophy
Both the LEAK Sandwich 150 and the Sandwich 250 carry forward the design idea that gives them their name, the aluminum-foamcore Sandwich cone that bonds stiff aluminum skins to a lightweight PMI structural foam core. The goal is a driver that stays rigid without adding excess mass, which helps keep the sound clean as the cone works harder. Add a 1.2 inch coated textile dome tweeter, real walnut veneer with aluminum trim, and a vented-box (bass reflex) alignment, and you have a clear family resemblance across both models.
Specifications compared
| Specification | Sandwich 150 | Sandwich 250 |
|---|---|---|
| Design | Two-way vented-box (bass reflex) standmount loudspeaker | Three-way vented-box (bass reflex) standmount |
| Bass/Mid Driver | 6.5 in aluminum-foamcore Sandwich cone (aluminum skins bonded to PMI structural foam core) | — |
| Tweeter | 1.2 in coated textile dome | 1.2 in coated textile dome |
| Sensitivity | 86.5dB (2.83V/1m) | 88.5dB (2.83V/1m) |
| Nominal Impedance | 6 ohm (8 ohm compatible), 4 ohm minimum | 6 ohm (8 ohm compatible), 4 ohm minimum |
| Frequency Response | 44Hz to 26kHz plus or minus 3dB (bass extension to 38Hz) | 42Hz to 26kHz plus or minus 3dB (bass extension to 32Hz) |
| Crossover Frequency | 2.4kHz | — |
| Recommended Amplifier Power | 25 to 150W | 25 to 250W |
| Peak SPL | 106dB | 112dB |
| Cabinet and Finish | Real walnut veneer with aluminum trim | Real walnut veneer with aluminum trim |
| Dimensions (H x W x D) | 16.4 x 9.9 x 12.4 in | 25.8 x 14.5 x 13 in |
| Weight | 27.1 lbs each | — |
| Woofer | — | 11 in aluminum-foamcore Sandwich |
| Midrange | — | 4.25 in aluminum-foamcore Sandwich |
| Crossover Frequencies | — | 470Hz and 3.1kHz |
| Stands | — | Optional matching stands available |
The difference comes down to scale and complexity. The 150 is a compact two-way standmount, while the 250 steps up to a larger three-way design with a dedicated midrange. This guide walks through where each one fits so you can match the speaker to your room, your listening, and your amplifier.
The Models Compared
LEAK Sandwich 150
The Sandwich 150 is the compact two-way of the pair, a vented-box standmount built around a 6.5 inch aluminum-foamcore Sandwich bass/mid driver crossing to the tweeter at 2.4kHz. It carries a sensitivity of 86.5dB (2.83V/1m), a frequency response of 44Hz to 26kHz plus or minus 3dB (with bass extension to 38Hz), and a recommended amplifier power range of 25 to 150W. At 16.4 x 9.9 x 12.4 inches and 27.1 lbs each, it is the more manageable choice for smaller spaces and shorter listening distances.
LEAK Sandwich 250
The Sandwich 250 is the larger, more ambitious three-way, dividing the work across an 11 inch Sandwich woofer, a 4.25 inch Sandwich midrange, and the same 1.2 inch coated textile dome tweeter, with crossover points at 470Hz and 3.1kHz. It reaches a higher sensitivity of 88.5dB (2.83V/1m), a peak SPL of 112dB, deeper bass extension to 32Hz, and accepts up to 250W. At 25.8 x 14.5 x 13 inches it is a substantial speaker, with optional matching stands available.
Which Should You Buy by Scenario
I have a small to medium room and sit fairly close
Go with the Sandwich 150, since its compact 16.4 x 9.9 x 12.4 inch cabinet and 6.5 inch driver suit nearfield and modest room distances without overloading the space, while still reaching down to a bass extension of 38Hz.
I have a larger room and want more scale and low-end weight
Choose the Sandwich 250, because its 11 inch woofer, three-way layout, bass extension to 32Hz, and 112dB peak SPL give it the headroom and reach to fill a bigger space with authority.
I listen loud or want maximum dynamic headroom
The Sandwich 250 is the better fit, thanks to its higher 88.5dB sensitivity, 112dB peak SPL, and ability to accept up to 250W, all of which support louder, more effortless playback than the 150's 106dB peak SPL and 150W ceiling.
I want the cleanest midrange separation for vocals and acoustic music
The Sandwich 250 dedicates a 4.25 inch midrange driver between its 470Hz and 3.1kHz crossover points, which frees the woofer from midrange duty, whereas the 150 handles bass and midrange together on a single 6.5 inch cone for a simpler, more coherent two-way presentation.
I need speakers that stay easy to place and move
Pick the Sandwich 150, whose 27.1 lbs per speaker and smaller footprint make it easier to position on a shelf or stand, while the larger 250 is a floor-space commitment that pairs well with its optional matching stands.
A Note on Matching and the Rest of the System
Both models share a 6 ohm nominal impedance (8 ohm compatible) with a 4 ohm minimum, so a stable amplifier is worthwhile. The 150's 86.5dB sensitivity and 25 to 150W range make it a comfortable match for moderately powered integrated amplifiers, while the 250's 88.5dB sensitivity and 25 to 250W range give you more room to scale up. Because both are vented-box designs, give them some breathing room from the rear wall and experiment with distance to balance their bass output in your space.
Come Listen at AEA
The best way to choose between the Sandwich 150 and the Sandwich 250 is to hear them with your own music, so we invite you to visit the All Elite Audio showroom in Timonium, Maryland for a listen. Demo units rotate, so please reach out ahead of your visit to confirm which LEAK models are set up when you plan to come in.