ISSB-40 and CIS-35 Review by Soundrebels

"Although their (CIS-35) character was completely in line with that, what the ISSB-40 showed, the change in intensity of the influence, as a result of the point of application, was truly surprising. The improvement of resolution and micro-dynamics, especially in the midrange-treble crossing"

"Graphite Audio ISSB-40 are energizing treble and midrange in a truly brilliant way, while at the same time taming the bass. But mark my words well – keeping bass in discipline, and not thinning it"

"Despite how populistic it may sound, the tested items are splendid in their action. Their sound offering bases on phenomenally pulled together sound, without losing any of its density in the midrange."

"I think of a situation, where we sit down to listen to music and have the impression, that the sound in the listening room is clearer than usual, mimicking the moment after snowfall, which removes the ever present smog."