When Crystal Cable started out in 2004, it shipped its cables in film canisters. Doug Schneider of SoundStage! Hi-Fi remembers the wires inside as superthin and silvery, with "an almost jewelry-like appearance," at a time when audiophiles were used to cables the size of garden hoses. Thin is still the brand's big idea. Crystal Cable says most high-end cables of that era were large because a certain size was thought necessary for good signal transfer. The company says it works gold in between the silver crystals of its conductor, the metal core that carries the signal, and it describes its original Diamond Series as thin cables that are virtually all conductor. TONE Audio's staff, answering the claim that a slim cable can't deliver bass, wrote that the Micro Diamonds are "not bass deficient." Edgar Kramer of SoundStage! Australia heard "superbly neutral, detailed and articulate sound" from the Future Dream. Crystal Cable suits listeners who want detail from cables slim enough to tuck out of sight in a living room.

The way in is Diamond Series 2, which goes from Piccolo² up to Ultra² and uses Crystal Cable's SG2 silver-gold conductor. The step up is the Art Series, which moves to the company's Infinite Crystal Silver conductor in three families named for painters, Monet, Van Gogh and Da Vinci. Match the cables to the balance of your system. Kramer says the Future Dream cables "demand a neutral system," and that a reticent or warm one gains vigor from them. TONE heard the Micro Diamonds make their biggest improvement in a warm all-tube system and wrote that Harbeth Compact 7s "really come alive with Crystal Cables." TONE also liked that the Micro Diamond speaker cables end in splitters, so you can change the terminations or add length later. For the speakers, Crystal Cable asks for at least 50 watts from a transistor amp for the Minissimo. The Minissimo Forte is easier. High Fidelity explains that a small buffer amplifier ahead of its crossover gives the power amp a gentle load, and Crystal Cable says 15 watts is enough.

Gabi Rijnveld founded Crystal Cable after a career as a concert pianist. She played concerts from the age of nine, and Andrew Quint of The Absolute Sound notes that she trained at the Liszt Ferenc Academy in Budapest. Her husband, Edwin Rijnveld, founded the cable maker Siltech, and Crystal Cable credits its cables to his engineering knowledge combined with her artistry and experience. The company says its slim cables left many visitors astonished when it introduced them at the 2004 Consumer Electronics Show in Las Vegas. Speakers followed in 2009 with the Arabesque, a glass cabinet with a curled shape and no parallel walls. The smaller Minissimo came in 2014, and John Atkinson of Stereophile says that from above it looks like a comma lying on its side. Schneider heard the Minissimo reproduce acoustic piano better in his room than any other speaker its size, and he tied that to her years at the keyboard. In 2025 The Absolute Sound named the Minissimo Forte its Mid-Priced Loudspeaker of the Year.