TOPPING A50 III NFCA Headphone amp Pre-Amplifier - SE/BAL input 6.35mm single-ended 4.4mm balanced jack 3500mW x2 powerful output (Black)

Topping A50 III NFCA Headphone amp Pre-Amplifier - SE/BAL Input 6.35mm Single-dended 4.4mm Balanced Jack 3500mW x2 Powerful Output (A50III Black)

Topping D50 III DAC Preamplifier - LDAC Bluetooth 5.1 Dual ES9039Q2M D/A Chips Supports DSD512 PCM768kHz,PEQ Adjustment and Remote Control (Black)

Monoprice 1/4-Inch TRS Male to 1/4-Inch TRS Male Cable - 1.5 Feet- Black, 16AWG, Gold Plated - Premier Series