Markaudio Alpair-7MS Grey Full-range Woofer

The Markaudio Alpair-7MS Grey 4" Full Range Woofer is a meticulously engineered broadband driver designed to deliver natural, coherent sound without the need for a separate tweeter. Its full-range capability makes it an ideal choice for compact speaker designs, including bookshelf monitors, desktop audio systems, and high-fidelity DIY projects where space is at a premium but sonic quality cannot be compromised. Whether you are building a minimalist stereo pair or a multi-channel home cinema setup, this driver excels in applications that demand a balanced, uncoloured response across the entire audible spectrum.

Technically, the Alpair-7MS features a nominal diameter of 101.6mm and a depth of just 62mm, allowing for slim enclosures. With an impedance of 8 ohms and a DC resistance (Re) of 7.2 ohms, it is straightforward to integrate into most amplifier designs. The sensitivity is rated at 86.3dB (SPL 1m/2.83V), while the total Q factor (Qts) of 0.57, derived from a mechanical Q (Qms) of 2.35 and an electrical Q (Qes) of 0.74, ensures controlled bass response. A resonance frequency (Fs) of 75Hz and a maximum linear excursion (Xmax) of 4.5mm contribute to its ability to produce articulate low frequencies. The driver requires a baffle cut-out diameter of 99.1mm and is secured with five mounting holes. As part of the Markaudio Alpair series, this woofer represents a refined approach to full-range audio, offering a seamless, natural soundstage in a compact footprint.