Vacuum tube and tube-hybrid amplifiers, from single-ended Class A designs to Bluetooth integrated amps, with tube types, power and inputs.
Douk Audio F5 Single-Ended Class A Amplifier — read reviewA pure Class A single-ended tube power amp Douk Audio rates at 6W+6W, built on 6L6 and 6N1 tubes with tube-rolling sockets.
Nobsound DA3 Bluetooth Tube Amplifier — read reviewAn integrated tube amplifier rated 35W x 2 at 4 ohms, with two 6J1 tubes in the preamp stage, Bluetooth, USB, coaxial, optical and dual RCA inputs, plus a headphone output and a pre-out for subwoofers.
Nobsound DA7 Vacuum Tube Power Amplifier — read reviewA pure tube power amplifier with four 6P1 output tubes and three 6N1 driver tubes, rated 12W x 2 into 4 ohms, with Bluetooth 5.3, USB 3.0, dual RCA inputs and twin analog VU meters.
ST-01 PRO Bluetooth Tube Amplifier — read reviewA vacuum-tube hybrid amplifier with Bluetooth 5.0, USB DAC, and digital inputs, built for desktop hi-fi setups with passive bookshelf speakers.
Nobsound F2 Single-Ended Class A Tube Amplifier — read reviewA single-ended Class A tube amplifier delivering 9W x 2 into 8 ohm with 5U4G rectifier, 6SN7GT preamp and 6CA7 power tubes, all pluggable for tube rolling.
Douk Audio F3 Single-Ended Class A Amplifier — read reviewA single-ended Class A tube amplifier delivering 3.2W x 2 through GE 6DK6 driver and Valvo PL84 output tubes, with a real-time spectrum display and a handcrafted wood cabinet.
Douk Audio ST-02 Integrated Tube Amplifier — read reviewA 2.1-ready integrated amplifier combining a DAC, TPA3255 speaker amp, ECC83 tube stage and headphone amp in one chassis, with Bluetooth 5.4 and a dedicated subwoofer output. Listed as a pre-sale item.
Douk Audio T6PRO TPA3255 Tube Amplifier — read reviewHybrid stereo amplifier that pairs JAN5725 tubes with a TPA3255 Class D power stage for up to 300W per channel, adding Bluetooth 5.1, RCA and AUX inputs, a wide dual VU meter and a super-bass control.
Douk Audio X1 Bluetooth Tube Amplifier 160W — read reviewA $139.99 desktop tube amplifier with 160W + 160W of TDA7498E power, an MM phono input for turntables, aptX-HD Bluetooth and a subwoofer output for 2.1.
Nobsound AV-525 Bluetooth Vacuum Tube Amplifier — read reviewA hybrid tube and transistor amp Douk Audio rates at 100W+100W into 4 ohm, with Bluetooth, optical, coaxial and USB inputs.