Powered low-frequency extension system with 2 x subwoofer towers and 2 x 900W amplifier Features 1 Perfectly integrated time and phase coherent, three-way system, extending all the way down to 20Hz. 2 Extremely robust 25 cm (10”) woofers with matching 25 cm passive radiators mounted in back to back force canceling mode on both sides of the cabinet. 3 Driven by 2 x 900W amplifiers housed in a 2U rack chassis and a stand-alone 1U filtering module with variable-volume control. Another step forward…Modern music is increasingly bass-intensive. To pack the maximum amount of energy into the lowest octave – with no surprises in the playback – a sound engineer needs to hear and feel throughout the whole frequency spectrum.BaseTwo25 low-frequency extension system fits equally well in any composing, mixing, or mastering setup, where correct reproduction and appreciation of the lowest octave is critical. Amphion’s innovative approach to low-frequency monitoring provides producers, sound engineers and artists with a completely new perspective to the base. The BaseTwo25 is a state-of-the-art monitoring solution converting any Amphion two-way studio monitor into a full-range, time and phase coherent, three-way system. These full-range towers extend all the way down to 20Hz. Each BaseTwo25 has 2 x 25 cm woofers (top) and matching 2 x 25 cm radiators (below) mounted in back to back force-canceling mode on both sides of the cabinet. The system is driven by 2 x 900W amplifier, and controlled by Amphion’s signature filtering module with a variable-level attenuator. In addition to providing tight, tuneful bass, BaseTwo25 improves midrange clarity and increases the midrange power-handling abilities of the paired monitors. This is achieved by gradually transferring the low-end frequencies from the monitors to the base extenders. Base systemsSeamless low-end extensionBalanced, clean, and natural bass reproduction system to complete a full range monitoring rig.Our base extension monitoring systems respond to the most demanding sound quality standards a producer, artist or studio engineer has. They seamlessly transform studio monitors to a true stereo full-range setup. Amphion monitoring systems provide exquisite detail and breathtaking 3D soundscape. Specifications Operating principle One way with passive radiator, stereo Drivers 4 x 25 cm / 10” aluminum driver 4 x 25 cm / 10” aluminum radiator Crossover point Active 3rd-order @ 100 Hz Max SPL 127dB Frequency response 20 – 100 Hz +/-3dB (low pass) 100 Hz – 200 kHz +/-3dB (high pass) Weight 68 kg (150 lbs) Handmade in Finland