Philippe’s Burson Soloist 3X GT with Abyss 1266, Audeze LCD-4 and Meze Liric

• Impedance: 50 Ω
• Sensitivity: 88 dB/mW ≈ 101.0 dB/V (calc.)
• Frequency response: 5 Hz – 45 kHz
• Plugs / cables supplied: 2.5 m 4-pin XLR cable with 6.3 mm adaptor (JPS Labs); other terminations optional

Matching notes: At 50 Ω and 88 dB/mW, the AB-1266 Phi TC is a low-impedance load, and a fairly demanding one: about 2.8 V (158 mW, 56 mA) for 110 dB SPL (calc.). Burson does not publish a 50 Ω rating for the Soloist 3X GT. Its 32 Ω and 100 Ω ratings (8 W XLR / 4 W SE; 3.8 W XLR / 1.9 W SE) fall either side of it. The Soloist 3X GT’s 0.5 Ω headphone output impedance is 1/100 of the load. ^{[1] [2] [3]}

• Impedance: 200 Ω
• Sensitivity: 97 dB/1mW (at Drum Reference Point) ≈ 104.0 dB/V (calc.)
• Frequency response: 5 Hz – 50 kHz
• Plugs / cables supplied: 1.9 m 6.35 mm to dual 4-pin mini-XLR cable
• Other: recommended power >500 mW;

Matching notes: At 200 Ω and 97 dB/mW, the LCD-4 is a high-impedance load that needs voltage more than current: about 2 V (20 mW, 10 mA) for 110 dB SPL (calc.). Burson does not publish a 200 Ω rating for the Soloist 3X GT. Its 100 Ω and 300 Ω ratings (3.8 W XLR / 1.9 W SE; 1.3 W XLR / 0.65 W SE) fall either side of it. The Soloist 3X GT’s 0.5 Ω headphone output impedance is 1/400 of the load. ^{[4] [2] [3]}

• Impedance: 30 Ω
• Sensitivity: 100 dB SPL / mW @ 1 kHz ≈ 115.2 dB/V (calc.)
• Frequency response: 4 Hz – 92 kHz
• Plugs / cables supplied: dual 3.5 mm TS cup sockets (current page)

Matching notes: At 30 Ω and 100 dB/mW, the Meze Liric is a low-impedance load, and an efficient one: about 0.55 V (10 mW, 18 mA) for 110 dB SPL (calc.). Burson does not publish a 30 Ω rating for the Soloist 3X GT. Its 16 Ω and 32 Ω ratings (10 W XLR / 5 W SE; 8 W XLR / 4 W SE) fall either side of it. The Soloist 3X GT’s 0.5 Ω headphone output impedance is 1/60 of the load. ^{[5] [6] [2] [3]}

• Impedance: 20 Ω
• Sensitivity: 100 dB/1mW (at Drum Reference Point) ≈ 117.0 dB/V (calc.)
• Frequency response: 10 Hz – 50 kHz
• Plugs / cables supplied: 1.9 m 4-pin XLR cable with 6.35 mm adapter
• Other: recommended power >250 mW (min >100 mW; max 5 W RMS);

Matching notes: At 20 Ω and 100 dB/mW, the Audeze LCD-XC is a low-impedance load, and an efficient one: about 0.45 V (10 mW, 22 mA) for 110 dB SPL (calc.). Burson does not publish a 20 Ω rating for the Soloist 3X GT. Its 16 Ω and 32 Ω ratings (10 W XLR / 5 W SE; 8 W XLR / 4 W SE) fall either side of it. The Soloist 3X GT’s 0.5 Ω headphone output impedance is 1/40 of the load. ^{[7] [2] [3]}

• Output power (XLR / SE): 16 Ω 10 W / 5 W · 32 Ω 8 W / 4 W · 100 Ω 3.8 W / 1.9 W · 300 Ω 1.3 W / 0.65 W · 600 Ω 0.64 W / 0.32 W
• Output impedance: 0.5 Ω (headphone); 25 Ω (pre out)
• Gain: High / Medium / Low; dB not published
• Inputs: 2x XLR; 2x RCA; mic bypass
• Input impedance: 35 kΩ
• Input sensitivity: line level
• Outputs: XLR + RCA pre out; RCA subwoofer out; 4-pin XLR + SE headphone
• Other: Model R-120X (“GT3”); THD <0.0015%; FR ±1 dB 0-48 kHz

^{[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.

1. Abyss AB-1266 Phi TC: abyss-headphones.com
2. Burson Soloist 3X GT product page
3. Burson Soloist 3XGT User Manual V2.0 (Burson downloads)
4. Audeze LCD-4: audeze.com
5. Meze Liric: archived page (web.archive.org)
6. Meze Liric: mezeaudio.com
7. Audeze LCD-XC: audeze.com