The Burson Soloist GT4 impresses right out of the gate with its deceptively small footprint. Don’t let its compact chassis fool you—this is a powerhouse of an amplifier that delivers exceptional performance well beyond what its size might suggest. Despite its minimalist form factor, the GT4 offers robust output capabilities, effortlessly driving even the most demanding headphones with clarity, control, and finesse. It’s a perfect blend of precision engineering and raw power, making it a standout choice for audiophiles who want top-tier sound without sacrificing space.
Matching notes: At 24 Ω and 105 dB/mW, the AH-D9200 is a low-impedance load, and an efficient one: about 0.28 V (3.2 mW, 11 mA) for 110 dB SPL (calc.). Burson does not publish a 24 Ω rating for the Soloist GT4; its nearest published rating is 10 W XLR / 5 W SE into 32 Ω. The Soloist GT4’s 0.5 Ω headphone output impedance is 1/48 of the load. [1] [2] [3]
Matching notes: At 29 Ω and 98 dB/mW, the RAD-0 is a low-impedance load: about 0.68 V (16 mW, 23 mA) for 110 dB SPL (calc.). Burson does not publish a 29 Ω rating for the Soloist GT4; its nearest published rating is 10 W XLR / 5 W SE into 32 Ω. The Soloist GT4’s 0.5 Ω headphone output impedance is 1/58 of the load. [5] [6] [2] [3]
Specs from manufacturer data unless a source below says otherwise. “calc.” values are worked out from those figures (V = √(P × R); 110 dB SPL used as a loud reference level). Gear listed without specs is not in our spec library yet.
