HIFI Stereo Class A FET Preamplifier DIY Kit/Finished Board Base On JC-2 Circuit HK$ 273.30 至 HK$ 374.84
PASS X1-B1-B Buffer Preamplifier Stereo Audio Preamp Kit/Board With 4 Way Input HK$ 421.70 至 HK$ 484.19
Split Hifi Ground Grid (GG) Tube preamplifier ECC82 vacuum Tube preamp (B6-8) HK$ 1,468.42 至 HK$ 1,780.85
DIY Hifi DRV134PA Stereo Single-ended To XLR Balanced Audio Output kit (B6-12) HK$ 54.60 至 HK$ 156.21
PRT13A-BAL Remote Version Stereo Balance Tube Preamplifier Vacuum Tube Preamp HK$ 2,561.92 至 HK$ 3,085.24
HIFI PRT09A Tube Buffer Preamplifier Base On Musical Fidelity X10-D Circuit HK$ 1,241.83 至 HK$ 1,905.74
DIY Hifi Tube Preamplifier Kit /Board Base On Conrad-Johnson PV12 Preamp (B6-47) HK$ 195.19 至 HK$ 577.92
HIFI PRT07B Remote Tube Preamplifier With 4 Way RCA Input Base On Marantz 7 (M7) HK$ 1,468.34 至 HK$ 2,186.93
PRT07B 12AX7 Tube Preamps Base On Marantz 7 (M7) Circuit Kit / Board (No Tubes) HK$ 218.62 至 HK$ 273.30
LITE LS69 Fully Balanced 6922 Tube Preamplifier Kit/Finished Board (No Tubes) HK$ 468.57 至 HK$ 546.67
PRT-12A 12AU7 ( ECC82 ) Tube Remote Preamplifier Base On CARY-SLP90 Preamp HK$ 1,663.61 至 HK$ 2,101.01