But Legacy's good reputation doesn't only stem from their professional line of products. They're also putting a big focus on the development of home audio speakers and electronics. Their professional and home audio divisions overlap in many respects. A great example is the Wavelet DAC-DSP-Preamp, which contains both a programmable active crossover and an option for room adjustment. The Wavelet is a perfect fit for the part-active speakers to achieve high-end playback in the home. "Part-active" means that the speakers contain an internal amplifier for the bass. The rest of the drivers are passive, and driven by an external amplifier. Recently, the Powerbloc2 Amplifier has been added to complement the Legacy line of passive speakers. The Signature SE Premium is a classic passive speaker with a completely closed cabinet. Striking is the installment of two Air-Motion-Tweeters (AMTs) for frequencies above 2800 Hertz. Virtually all Legacy Audio speakers are made to order. There is practically no stock of finished goods in Springfield. The left and right speakers are precisely pair matched during tuning. Of course all parameters are registered to ensure that if a replacement is needed, the exchange part is as similar to the original part as possible. The five drivers in the Signature SE are manufactured by three different companies, but they're all built according to Legacy's specifications. This can be seen on the front of the AMTs. "Air Motion Legacy" is engraved in proud letters into the solid aluminum enclosure around the tweeters. The square formed funnel-like opening optimizes the dispersion pattern characteristic, and leads to a perfect harmony between the two nearby placed AMTs. Chief-engineer Bill Dudleston uses low mass systems which have the capacity for high acceleration, and thus clean transient response. In his opinion, the speed of the membrane is crucial for a uniform radiating behavior. So they all should have a similar response behavior. Transient response and efficiency are two fundamental criteria for music reproduction at Legacy Audio. Consequently, Legacy developed components with extreme driving characteristics, like magnetic field-strength up to two Tesla. Thanks to that, a surprising amount of dynamic range in the lowest frequency spectrum can be achieved.

The first Signature was built back in 1992. The current Signature SE, first built in 2013, is the result of continuous refinement and improvement. In the past Bill Dudleston preferred ribbons for the upper frequency range, because they allowed for the most correct music reproduction, in his opinion. However, the limit in dynamic range particularly made him look for other solutions, as well. The development of the bigger, part-active Aeris speaker brought the desired improvement on the previously used ribbons for the high frequency spectrum. For the first time the dual Air-Motion-Transformer was used. Although the 4" AMT is capable of reproducing frequencies up to 28 Kilohertz, the smaller AMT takes over at 8000 Hertz to ease the work.

One of the maxims of Bill Dudleston when designing speakers is to operate the drivers used in their optimum frequency range. That's why the smaller, one-inch tweeter supports its bigger brother at very high frequencies. That allows for a better impulse behavior and more uniform dispersion up to 30 Kilohertz. Both AMT segments are built with high-magnetic neodymium bars. The Legacy AMT is slightly over-damped to prevent resonances in the lower frequency spectrum. In every AMT the signal current flows through two upward and opposite downward extending conductors. This induces a signal-flow-dependent magnetic field "around" the conductors glued to the membrane. The Kapton membrane is suspended between magnetic rods on the back and the pole plate on the front, thus allowing air to be set into motion. The air motion is controlled by the opening and closing of the accordion-like folds. The Legacy-AMT has a linear impedance of 4.5 ohms. The double AMT is, due to its constructive characteristics, significantly better than ribbons or simpler AMTs in terms of dynamic range and power handling, due to the larger surface area of the diaphragm. Thanks to its high quality materials, the AMT can cope with temperatures of almost 400 degrees Celsius.