Electro-Harmonix 6H30Pi Gold Pins - Matched Pair - 2 tubes

Little Dot MK III Headphone Tube Amplifier

KabelDirekt RCA Stereo Cable/Cord (3 ft/feet short, Dual 2 x RCA Male to 2 x RCA Male Audio Cable, Digital & Analogue, Double-Shielded, PRO Series) supports (Amplifiers, AV Receivers, Hi-Fi)

Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black

Sennheiser HD 600 Open Back Professional Headphone

Mediabridge 3.5mm Male to 2-Male RCA Adapter (6 Feet) - Step Down Design - (Part# MPC-35-2XRCA-6)

KabelDirekt RCA Stereo Cable / Cord (6 ft / feet short, Dual 2 x RCA Male to 2 x RCA Male Audio Cable, Digital & Analogue, Double-Shielded, PRO Series) supports (Amplifiers, AV Receivers, Hi-Fi)

Aurum Cables 3-Pack 6.35mm Male to 3.5mm Female Stereo Adapter

Genalex Gold Lion E88CC Gold Pin Tube

Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes - Upgrade for 6AK5 / 6J1 / 6J1P / EF95 Audio Amplifier Tube - GE 5654W tubes - Platinum Grade Pair

Sennheiser HD 650 Open Back Professional Headphone