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Product Brand & Model: Hybrid audio Technologies Legatia L4SE "Carbon"

Condition of all items: Demo Set

Total Price: $430.00 via paypal. Send PM for quickest response

Shipping Terms: Free to the lower 48 states. If international, contact first for actual cost.

Pictures: Attached


Overall Diameter 118 mm (4.65-inch)
Mounting Depth 42 mm
Recommended Minimum Crossover Frequency 150 Hz at 24 dB/octave highpass
Pmax (With Recommended Minimum Crossover) 150 watts
Frequency Range 135 Hz – 7,500 Hz, +/- 3 dB
Sensitivity 91 dB at 2.83V/1meter
Voice Coil Diameter 25.55 mm (1-inch)
Impedance 4 


The Legatia L4SE Carbon’s topology is a derivative of the massively successful Legatia L4SE transducer which was first launched in August 2010.

At the onset of the Legatia SE Carbon program, the purpose for the series was to be an exceptionally high-end option for shallow-depth midbass drivers to be used specifically in German automobiles, and in other vehicles where typical-depth high-quality midbass drivers would not fit, and where depth was at a premium. By early Spring 2011, a beta prototype pair of Legatia L4SE Carbon’s had been refined after hundreds of hours of testing and development; these highly-evolved drivers were sent to close industry affiliates for third-party testing and evaluation, specifically in the Porsche 928 vehicle platform as a dedicated door-mounted midbass, paired with a low-resonance tweeter. After countless hours testing the speakers under various circumstances, and four full revisions of the Carbon L4SE, final approval was given. Production refinements were mid-Summer of 2011, to incorporate features inclusive and proprietary to the Legatia SE Carbon line, and final production commenced August 2011. The Legatia L4SE Carbon was launched in October 2011 and is the reference 4.65-inch dedicated midbass driver in Hybrid Audio’s product category known collectively as the Legatia SE Carbon Series.


The Legatia L4SE is a 118mm (4.65-inch) midbass driver to compliment both two-way and three-way system designs, where a shallow-depth, long-throw, small-format midbass is required. The following are the L4SE Carbon’s design attributes:

Design Considerations

The Legatia SE Carbon-series component speakers are electrodynamic drivers that are comprised of a diaphragm that is set in motion by a motor system that has both electrical and mechanical components. The Special Edition Carbon midbass designs boast several key elements which enhance the driver’s performance in vehicle-specific applications, notably applications which require a shallow-depth midbass driver, such as typically found in numerous German-manufactured automobiles (Audi, BMW, Porsche, and etc.). Likewise, the Carbon midbass’ can be used at the enduser’s discretion in a variety of automobile settings where a shallow-profile, long-throw midbass is required. The Legatia SE Carbon midbass differ vastly from the Legatia SE-series wide-bandwidth drivers, as follows:

• Considerably shallower mounting depth;
• Considerably smaller motor profile;
• Inclusion of a “double-S” treated cloth surround for enhanced excursion, restorative force,
compliance, and edge-mode damping, for authoritative midbass operation;
• Narrower recommended bandwidth operation, as compared to the wide-bandwidth Legatia SE
series, but with enhanced midbass and lower midrange authority;
• Inclusion of a composite carbon fiber cone and dust


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