Resource
Bottlehead
American kit company that has sold vacuum-tube amplifier and preamplifier kits since 1995. Its kits, including headphone amplifiers, use parts such as speaker cabinets and transformers made to order in the USA.
Where to buy
Bottlehead also sells direct; check the official website above for current pricing.
Some retailer links may become affiliate links; Audio-Atlas may earn a commission at no extra cost to you. Affiliate disclosure.
Verification sources
Related resources
Analogue Seduction
dealer
Whittlesey-based hi-fi retailer with a particular emphasis on turntables, cartridges and two-channel listening. Its catalogue also covers digital sources, headphones and home cinema, with appointment-based demonstrations in a Cambridgeshire manor-house listening room.
Sources
Cambridge Audio
manufacturer
British audio brand launched in 1968, designing products in London and Cambridge with manufacturing partners abroad. Its current range connects conventional hi-fi electronics with streaming amplifiers, active speakers, all-in-one systems and Melomania headphones, offering several different approaches to a home music system.
Dedicated Audio
dealer
Family-owned audiophile retailer in Scottsdale, Arizona, established in 2000. It lists more than 1,800 components, accessories and music titles from around 60 brands online, with a listening room available by appointment.
Sources
Denon
manufacturer
Denon is a Japanese-origin audio brand covering AV receivers, stereo components, turntables, wireless speakers and headphones. HEOS connects supported products for whole-home streaming, while the catalogue retains separate routes for multi-channel cinema, disc playback and vinyl listening.
Feliks Audio
manufacturer
Polish boutique manufacturer of hand-crafted tube amplifiers, based in Lubliniec. It focuses on premium tube headphone amplifiers and also makes speaker amplifiers.
Sources
Ferrum Audio
manufacturer
Polish brand from the HEM company near Warsaw, making desktop audio products: the WANDLA DAC, the OOR headphone amplifier, the ERCO headphone DAC/amp and the HYPSOS power supply. Products are made in Poland.