Anthony’s Burson Soloist 3X Performance with Audeze LCD-X (2021)

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Sales Burson
March 11, 2024

Post Info

Feedbacks - Super Charger 3A | 5A
Schiit Bifrost 2/64, Super Charger 3A

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The System

Listening with

Audeze LCD-X · Headphones: open-back, planar magnetic, circumaural

Impedance: 20 Ω
Sensitivity: 103 dB/1mW (at Drum Reference Point) ≈ 120.0 dB/V (calc.)
Frequency response: 10 Hz – 50 kHz
Plugs / cables supplied: braided 4-pin XLR combo cable with 6.35 mm single-ended adapter
Other: recommended power >250 mW (min >100 mW; max 5 W RMS); 106 mm driver; max SPL >130 dB

Matching notes: At 20 Ω and 103 dB/mW, the Audeze LCD-X is a low-impedance load, and an efficient one: about 0.32 V (5 mW, 16 mA) for 110 dB SPL (calc.). Burson does not publish a 20 Ω rating for the Soloist 3X Performance. Its 16 Ω and 32 Ω ratings (8 W XLR / 4 W SE; 4 W XLR / 2 W SE) fall either side of it. The Soloist 3X Performance’s 0.5 Ω headphone output impedance is 1/40 of the load. ^{[1] [2] [3]}

Burson

Burson Soloist 3X Performance · Headphone amplifier / preamp (Class-A) · discontinued

Output power (XLR / SE): 16 Ω 8 W / 4 W · 32 Ω 4 W / 2 W · 100 Ω 1 W / 0.5 W · 150 Ω 0.6 W / 0.3 W · 300 Ω 0.3 W / 0.15 W
Output impedance: 0.5 Ω (headphone); 25 Ω (pre out)
Gain: High / Medium / Low (manual); dB not published
Inputs: 1x XLR; 1x RCA; mic bypass
Input impedance: 35 kΩ
Input sensitivity: standard line level
Outputs: XLR pre out; 4-pin XLR + SE headphone
Other: Model M-120X (3XP); THD <0.0015%; FR ±1 dB 0-48 kHz

^{[2] [3]}

Burson Super Charger 3A · Power supply (24 V DC)

Other: 24 V / 3 A; noise floor <1 µV; 2.5 mm barrel plug, centre positive; 100-240 V AC in

^{[4] [5]}

Also in the system

Schiit Bifrost 2/64

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.