Crystal Acoustics provides professional and unique custom handmade guitars and string instruments .

Iseman Guitars and Instruments was created in 2012 by Luthier Mark Iseman and Matthew Nigro in Honolulu, Hawai'i. They have a passion for music and instrument making and decided to start producing a commercial line of instruments, mainly Koa Weissenborns ( Hawaiian Steel Guitars). Due to their local access of Koa, they decided to use this wood for their Hawaiian instruments because of its great tonal qualities and natural beauty. They have also handcrafted African Tongue Drum and other percussion instruments.