Burson Soloist 3X Performance with HiFiMAN Arya and Sennheiser HD 6XX

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Sales Burson
September 3, 2021

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Burson Soloist 3X Performance, Burson Super Charger 3A, Denafrips ares ii and pi2aes, HiFiMAN Arya, Sennheiser HD 6XX

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The System

Listening with

HiFiMAN Arya · Headphones: open-back, planar magnetic, circumaural · discontinued

Impedance: 35 Ω
Sensitivity: 90 dB (reference not stated by HiFiMAN)
Frequency response: 8 Hz – 65 kHz
Plugs / cables supplied: not published (HiFiMAN spec page lists no connector)
Other: weight 404 g

^[1]

Sennheiser HD 6XX · Headphones: open-back, dynamic, circumaural

Impedance: 300 Ω
Sensitivity: 103 dB SPL @ 1 kHz, 1 V (as published) ≈ 97.8 dB/mW (calc.)
Frequency response: 10 Hz – 41 kHz
Plugs / cables supplied: 3.5 mm stereo jack plug (6.35 mm adapter); 1.8 m cable
Other: THD <0.1% (1 kHz, 1 V)

Matching notes: At 300 Ω and 103 dB/V, the HD 6XX is a high-impedance load that needs voltage more than current: about 2.2 V (17 mW, 7.5 mA) for 110 dB SPL (calc.). Burson rates the Soloist 3X Performance at 0.3 W (XLR) / 0.15 W (SE) into 300 Ω, which is about 9.5 V / 6.7 V RMS (calc.), roughly 13 dB / 10 dB more than that. The Soloist 3X Performance’s 0.5 Ω headphone output impedance is 1/600 of the load. ^{[2] [3] [4] [5]}

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

^{[4] [5]}

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

^{[6] [7]}

Also in the system

Denafrips ares ii and pi2aes

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.