Tube Amp Doctor GZ34/5AR4-CZ

Pre-Amplifiers

1. Audio Note Kondo G-72i

   • Tube
   • Stereo
2. Audio Note Kondo G-700i

   • Tube
   • Stereo
3. EAR Yoshino 834L

   • Tube
   • Stereo
4. EAR Yoshino 912

   • Tube
   • Stereo
   • MM
   • MC

Power Amplifiers

1. Audio Note Kondo Melius

   • Tube
   • Stereo
2. Audio Note Kondo Kagura2i

   • Tube
   • Mono
3. Audio Note Kondo ONGAKU

   • Tube
   • Stereo
4. EAR Yoshino 509

   • Tube
   • Mono

Integrated Amplifiers

1. Analog Ethos Pacific 63

   • Tube
   • Stereo

   Released

   2024–present

2. Analog Ethos AE1 Kit

   • DIY kit
   • Tube
   • Stereo

   Price

   1,099.00 USD

3. Analog Ethos Exordium

   • DIY kit
   • Tube
   • Stereo

   Released

   2021–present

   Price

   899.00 USD

4. Analog Ethos Legendarium

   • DIY kit
   • Tube
   • Stereo

   Released

   2021–present

Headphone Amplifiers

1. ampsandsound Rockwell Rev 2

   • Tube
   • Stereo

   Price

   5,800.00 USD

2. ampsandsound Jinx

   • Tube
   • Stereo

   Price

   2,800.00 USD

3. Cayin HA-300MK3

   • Tube
   • Stereo

   Released

   2026

4. Woo Audio WA5 (2nd Gen)

   • Tube
   • Stereo

   Price

   6,499.00 USD