The development of the CM4
modulation cable started soon after the HQS power amplifiers. As explained
in the presentation section of this web site, the type and the purity of
the materials and their associations for sound neutrality has been the
second point of research of Jean-Marie Fusilier. Indeed his main activities
were in high frequency electronics, in which field engineers pay great
attention to materials and shields for proper signal propagation and
signal integrity. The development of the CM4 took several years, of
The CM4 cable was then
presented with the HQS power amplifiers and was systematically chosen by
the descerning studio
professionals in the USA, Europe and Asia over their references.
products stand the test of time.
manufacturing of the CM4 cable draws upon exceptional tooling and
materials.The conductors are made
of extremely pure long crystals. The construction is totally symmetrical as
always with JMF Audio's designs. The whole cable assembly requires very
precise conductors and shield placement for optimal sound result.
to other hi-end or professional cables, the CM4 provides a sweet natural
and homogeneous sound, which means a great accuracy of timbres and an
exceptional coherent deep and wide 3D soundstage. Instruments of an
orchestra are at the right place and sound natural. The CM4 cable is
immune to the microphonic effects (vibrations) and electromagnetic
interferences that are both responsible for sound blurring (i.e. dynamics
compression, harshness, soundstage reduction, resonances).
CM4 cables provide a matched link between JMF Audio devices (DXC D/A
converter, PRS1.5 preamplifier, HQS power amplifiers). They carry the same
balanced by design and provided with XLR connectors as standard, we can
provide RCA (single ended) versions on demand.
PLC pure long crystal, specific to JMF Audio
XQD symmetrical design specific to JMF Audio
TSD specific JMF Audio shielding technique
NAS neutral solder made to measure for JMF Audio (solder of conductors and
shields to connectors)
High quality XLR gold contacts connectors (made in Liechtenstein)