RETAIL PRICE $1595

CALL 716-777-3100 TO ORDER OR EMAIL SALES@VINYLSOUND.COM TO ORDER!

LEAK Sandwich 100 Loudspeaker at Vinyl Sound Buffalo, NY USA

The Sandwich 100 is a 2-way bass reflex standmount loudspeaker from LEAK (Cambridge, England), available at Vinyl Sound in Buffalo, NY, USA. The most compact model in the revived LEAK Sandwich series, the 100 features a 150mm Rohacell-core aluminium sandwich cone mid/bass driver, a 30mm coated textile dome tweeter, and a crossover at 2.2kHz, delivering bass extension to 44Hz at -6dB from a 10.6-litre cabinet measuring just 340 x 210 x 250mm. Engineered by the IAG acoustic research team in Huntingdon, England, the Sandwich 100 applies the same Rohacell aerospace-grade foam core construction used in the larger Sandwich 150 and Sandwich 250, with polypropylene capacitors and air-core inductors in the crossover network, bringing LEAK's heritage driver technology to smaller listening rooms and desktop systems for the first time.

The Sandwich Cone Tradition: From 1961 to Rohacell

The LEAK Sandwich cone was first developed in 1961 to solve a problem fundamental to all conventional loudspeaker drivers: cone flex. Paper, plastic, fabric, and aluminium cones all share an inherent lack of stiffness, causing the diaphragm to vibrate unevenly under voice coil excitation. This produces transient hangover, amplitude distortion, and intermodulation distortion that persist regardless of cone material cost. LEAK's original solution used expanded polystyrene foam between two aluminium skins to create a diaphragm that was simultaneously light and rigid. In the Sandwich 100, this principle is applied using Rohacell aircraft-grade structural foam, the same material used in aerospace structural components, bonded between aluminium skins with aerospace-grade adhesives. The resulting cone achieves exceptional strength-to-weight ratios that push resonant frequencies well outside the audible band, enabling fast, accurate pistonic motion free from the breakup modes and coloration that affect conventional cones. A long-throw motor system with a high-gauss magnet and low-loss suspension supports the cone assembly, maintaining controlled linear movement even at higher listening levels.

Tweeter Design and Crossover Engineering

The Sandwich 100's 30mm coated textile dome tweeter is larger than the standard 25mm unit found in most standmount speakers at this scale. This increased dome diameter delivers improved power handling and enables a lower crossover point, allowing the 2.2kHz handoff to occur in a range where the textile dome operates with greater control and linearity. The crossover network uses audiophile-grade polypropylene capacitors and air-core inductors selected for their low loss characteristics and phase accuracy. This component specification maintains excellent phase alignment and stable stereo imaging across the listening room, not only at the central sweet spot. The result is a coherent, well-defined soundstage consistent with the acoustic philosophy established in the larger Sandwich models.

Cabinet Design and Aesthetics

The Sandwich 100 cabinet mirrors the engineering philosophy of its driver design. The enclosure uses layered MDF and high-density particle board bonded with specialised materials to scatter panel resonances and suppress cabinet coloration, a construction that LEAK refers to as the second sandwich in the product line. Internal bracing and precisely positioned acoustic damping materials further reduce vibrations, while a rear-firing bass reflex port extends low-frequency output to 44Hz at -6dB in a controlled manner suited to compact room environments. Externally, the cabinet is finished in walnut veneer with aluminium driver trims and a soft-touch matt black front baffle, a detail that distinguishes the 100's aesthetic from the fully walnut-clad Sandwich 150 and 250 while maintaining the signature LEAK visual language. A removable fabric grille completes the presentation.

Key Features

• Rohacell Aerospace Foam Sandwich Cone: The 150mm mid/bass driver uses a Rohacell aircraft-grade structural foam core bonded between aluminium skins with aerospace-grade adhesives, delivering the rigidity and low mass required for accurate pistonic motion and low distortion reproduction.
• 30mm Textile Dome Tweeter: An oversized 30mm coated textile dome tweeter provides improved power handling and enables the 2.2kHz crossover point, resulting in smooth, detailed high-frequency reproduction and a seamless transition to the mid/bass driver.
• Audiophile-Grade Crossover Components: Polypropylene capacitors and air-core inductors maintain low signal loss, excellent phase alignment, and stable stereo imaging across a wide listening area.
• Sandwich Cabinet Construction: Layered MDF and high-density particle board with internal bracing and acoustic damping materials control panel resonances and minimize cabinet coloration.
• Bass Reflex Port: A rear-firing bass reflex port extends low-frequency response to 44Hz at -6dB, providing full, controlled bass performance from the compact 10.6-litre enclosure.
• Walnut Veneer with Matt Black Baffle: Premium walnut veneer with aluminium trim details and a soft-touch matt black front baffle delivers a modern interpretation of classic LEAK aesthetics suited to contemporary interiors.
• Compact Form Factor: At 340 x 210 x 250mm, the Sandwich 100 is designed for smaller listening rooms, bookshelf placement, and desktop systems where the Sandwich 150 and 250 would be too large.
• Wide Amplifier Compatibility: With 86dB sensitivity, a nominal 6-ohm impedance (8-ohm compatible), and a recommended power range of 25 to 100W, the Sandwich 100 partners well with a wide variety of integrated amplifiers including the LEAK Stereo 130.

Technical Specifications

Frequently Asked Questions

What is the LEAK Sandwich 100?

The LEAK Sandwich 100 is a 2-way bass reflex standmount loudspeaker from LEAK, the British Hi-Fi brand founded in London in 1934. It features a 150mm Rohacell aluminium foam-core sandwich cone mid/bass driver, a 30mm coated textile dome tweeter, a 2.2kHz crossover, 86dB sensitivity, and bass extension to 44Hz at -6dB. The most compact model in LEAK's revived Sandwich series, the 100 measures 340 x 210 x 250mm and is designed for smaller listening rooms, bookshelf placement, and desktop systems.

How does the LEAK Sandwich 100 compare to the Monitor Audio Bronze 50?

The LEAK Sandwich 100 and the Monitor Audio Bronze 50 are both compact 2-way standmount loudspeakers targeting the entry-level British Hi-Fi market, but they use different driver technologies. The Sandwich 100 employs LEAK's Rohacell aerospace foam sandwich cone, a construction optimized for cone rigidity and low distortion, while the Bronze 50 uses Monitor Audio's gold dome tweeter and a C-CAM (Ceramic-Coated Aluminium/Magnesium) bass driver. Both speakers share a 6-ohm nominal impedance and comparable sensitivity. The Sandwich 100 distinguishes itself with a larger 30mm tweeter enabling a lower crossover point, audiophile-grade crossover components, and direct visual and acoustic continuity with the larger Sandwich 150 and Sandwich 250 for future system upgrades.

What amplifier should I pair with the LEAK Sandwich 100?

The Sandwich 100 is recommended for amplifiers rated between 25W and 100W and presents a nominal 6-ohm load with an 8-ohm compatibility rating. It pairs naturally with the LEAK Stereo 130 (45W per channel) for a fully matched British system. It also works well with compact integrated amplifiers from NAD, Audiolab, and Cambridge Audio. The 86dB sensitivity means the Sandwich 100 reaches comfortable listening levels with modest power, making it an efficient partner for lower-powered integrated amplifiers.

What is Rohacell foam and why is it used in the Sandwich 100?

Rohacell is a closed-cell polymethacrylimide structural foam widely used in aerospace and automotive applications for its exceptional strength-to-weight ratio. In the LEAK Sandwich 100, Rohacell foam forms the core of the mid/bass driver cone, bonded between aluminium skins using aerospace-grade adhesives. This construction produces a diaphragm that is both extremely rigid and very light, pushing resonant frequencies well outside the audible band and enabling accurate pistonic motion across the driver's operating range. The result is low cone breakup, fast transient response, and reduced intermodulation distortion compared to conventional paper, plastic, or standard aluminium cones.

Can the LEAK Sandwich 100 be used on a desktop or bookshelf?

Yes. The Sandwich 100 is specifically designed for smaller listening environments including desktop setups and bookshelf placement where the larger Sandwich 150 and Sandwich 250 are not practical. At 340mm tall and with a cabinet volume of just 10.6 litres, it fits comfortably in compact spaces. For bookshelf use, LEAK recommends leaving adequate clearance behind the speaker to allow the rear-firing bass reflex port to function without obstruction. Small isolation pads or speaker stands at bookshelf height further improve imaging and bass clarity by decoupling the cabinet from the surface.

How does the LEAK Sandwich 100 compare to the Sandwich 150?

The Sandwich 100 is the entry-level model in LEAK's Sandwich series, designed for smaller rooms and more compact placement, while the Sandwich 150 is a larger 2-way standmount intended for dedicated listening rooms. The 100 uses a 150mm Rohacell foam sandwich cone versus the 150's 170mm aluminium-PMI cone, and has a slightly higher crossover point at 2.2kHz versus 2.4kHz. Both speakers share the same 30mm textile dome tweeter design and sandwich cabinet construction philosophy. The Sandwich 150 extends lower at 38Hz (-6dB) versus the 100's 44Hz, and is taller at 415mm versus 340mm. Listeners in smaller rooms or on a budget will find the Sandwich 100 the more practical starting point, with a natural upgrade path to the 150 or 250.

Where can I buy the LEAK Sandwich 100 in Buffalo, NY or the USA?

The LEAK Sandwich 100 is available at Vinyl Sound USA Inc., located in Buffalo, NY. Vinyl Sound is an authorized LEAK dealer serving customers across the United States. Visit the Buffalo store to audition the Sandwich 100 alongside the full LEAK Sandwich series and the LEAK Stereo 130 and Stereo 230 integrated amplifiers, or contact the team directly to confirm current stock and availability.