Loudspeakers

MoFi’s SourcePoint 888 [HFN Jan ’25] used two 200mm bass units to relieve the concentric 32mm tweeter/200mm midrange of all bass duties below 130Hz. The V10 Master Edition takes this theme and beefs it up with 10in (250mm) rather than 8in drivers, and replaces the two rear-facing ports with 10in ABRs. The result is more of the same – reduced LF distortion (0.09% re. 100Hz/90dB/1m) and far higher sensitivity (90dB vs. 87.7dB/1kHz re. 2.83V/1m). Bass is deeper, too – the ABRs are tuned to 23Hz (18-43Hz, –6dB) albeit with a series of other modes starting at 120Hz (–10dB). The two bass drivers operate between 35Hz-115Hz (–6dB) leaving the ABRs to push the diffraction-correction bass extension down to a respectable 28Hz (–6dB re. 200Hz).

High sensitivity does not make the V10 ME a tougher drive than the ’888, despite its 3.95ohm/56Hz minimum suggesting a 4ohm rather than 6ohm nominal impedance. Conjugate loading holds the modulus at 4-10ohm from 38Hz-24kHz while ±40° swings in phase through the bass result in a not-so-difficult EPDR of 2ohm/46Hz. Meanwhile, the V10 coaxial treble dome’s response is more even-handed than the 888’s as errors are reduced by 1-2dB to ±3.9dB and ±4.4dB, respectively, alongside an improved 0.8dB pair matching [black/red traces, Graph 1]. The ‘High’/‘Low’ Treble Level settings realise a maximum ±1.5dB change in tweeter output [orange/green traces] while toeing the V10 ME off-axis by 15° delivers an even smoother top-end [grey trace]. Again, the plastic-framed grille disrupts the baffle’s facets (part of the waveguide), leading to bold peaks and notches in the presence/treble [blue trace] – remove before listening! PM