I regularly have the following amplifiers (from AMB Labs kits) immediately available for shipping:
– M³ (aka MMM, M^3, Mcubed) : 3 ch. active ground MOSFET class A headphone amplifier , several options available (variable gain, bass boost, custom gain, other opamps…)
– CK²III (Cavalli Kan Kumisa) : All discrete headphone amplifier
My builds are all housed in high quality custom handcrafted wood and aluminum enclosures.
If you need a different DIY amplifier (for example AMB Beta22, Bottlehead Crack, EHHA, O2 …), please visit my builds commissioning service page.