Markaudio CHR-70 Champagne Full-range Woofer

The CHR-70 Champagne 4" Full Range Aluminium Woofer from Markaudio represents a refined approach to compact audio reproduction, delivering natural, full-range sound in a surprisingly small footprint. This driver is ideally suited for high-fidelity loudspeaker projects, including desktop monitors, small bookshelf speakers, or multi-channel home theatre systems where space is at a premium but sonic quality cannot be compromised. Its full-range design eliminates the need for a separate tweeter, making it an excellent choice for minimalist builds or DIY enthusiasts seeking a coherent, point-source listening experience.

Technically, this woofer features an aluminium cone membrane, which contributes to its low moving mass and excellent transient response. With a nominal impedance of 8 ohms and a DC resistance of 7.2 ohms, it integrates seamlessly with a wide range of amplifiers. The total Q factor (Qts) of 0.55, combined with a resonance frequency (Fs) of 65.4 Hz and an equivalent volume (Vas) of 5.097 litres, allows for versatile enclosure designs, from sealed to ported configurations. The maximum linear excursion (Xmax) of 4 mm ensures controlled bass output, while the sensitivity of 85.4 dB (SPL 1m/2.83V) provides balanced efficiency. The CHR-70 Champagne is a testament to Markaudio's commitment to delivering high-performance audio components that excel in both clarity and compactness.