Amphion Loudspeakers has announced its new flagship BaseTwo25 Low-Frequency Extension System, a no-compromise, turnkey system that transforms any Amphion two-way studio monitor into a full range, perfectly integrated time and phase accurate, three-way tower.
Amphion, a Finnish manufacturer, said the new system extends all the way down to 10Hz corner frequency (-3dB). Each of the two BaseTwo25 towers features 10-inch woofers with 9.8 inch passive radiators mounted on either side of an enclosure measuring 40 x 7.5 x 14-inches.
The system is driven by two 900 watt outboard monoblock amplifiers, and controlled by a filtering module with variable volume control. More than adding low frequencies below a single fixed frequency point, the BaseTwo25 system significantly increases the coupled monitor’s midrange power-handling abilities by gradually transferring low-end frequencies.
Steep filtering is avoided so as to keep phase characteristics as correct as possible. The Base system’s unique filter module begins transferring energy from the mains to the Base towers at 400Hz (-36dB), employing a gentle third order filter to gradually increase the energy-exchange to the Bases until an equally shared transfer is achieved at 100Hz and below.
A by-pass switch also allows top speakers to be used independently of the complete system for a full-range presentation.
BaseOne25 sells for $12,500. The first production units are expected to ship from Q2 2018.
You might also like...
John Watkinson puts on his snake-oil-proof clothing and looks at speaker cables. Finally, some clarity behind the myths and magic that surround technical aspects of speaker interconnections.
Acoustic impedance is analogous to electrical impedance, and we all know that impedance matching is important in electronic systems. Here John Watkinson looks at the importance of acoustic impedance to loudspeaker design.
Although the loudspeaker business is dominated by moving coil transducers, the electrostatic loudspeaker has some advantages if used wisely. John Watkinson looks at this alternative technology.
The need for good directivity in loudspeakers cannot be sufficiently emphasised and remains an area that speaker designers sometimes neglect. The result destroys acoustic realism and makes loudspeakers sound like loudspeakers instead of like the original sound.
One of the most frequent questions that audio manufacturers get is whether their engineering customers should mix sound on headphones or studio monitors. The answer is simple. High quality mixes can be achieved on either…or both.