Lincoln’s Burson Soloist 3X GT with Sennheiser HD 6XX and HiFiMAN Arya V2

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Sales Burson
May 13, 2022

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Burson Soloist 3X GT, Denafrips Ares II, HiFiMAN Arya V2, Sennheiser HD 6XX

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The System

Listening with

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 GT at 1.3 W (XLR) / 0.65 W (SE) into 300 Ω, which is about 19.7 V / 14.0 V RMS (calc.), roughly 19 dB / 16 dB more than that. The Soloist 3X GT’s 0.5 Ω headphone output impedance is 1/600 of the load. ^{[1] [2] [3] [4]}

HiFiMAN Arya V2

Burson

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

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

^{[3] [4]}

Also in the system

Denafrips Ares II · DAC: discrete R2R ladder DAC (NOS / OS modes) · discontinued

Frequency response: 20 Hz – 70 kHz (-3 dB)
Output impedance: 625 Ω (RCA); 1.25 kΩ (XLR)
Output voltage: RCA 2.2 V · XLR 4.4 V
Inputs: USB (PCM to 1536 kHz, DSD1024); 2x coaxial; 2x Toslink (24/192, DSD64 DoP)
Outputs: RCA; XLR
DAC / chipset: discrete R2R ladder (no DAC chip); FPGA DSP; STM32 USB
Other: THD+N 0.004%; S/N 115 dB; dynamic range >119 dB; crosstalk -124 dB; <=20 W; 215 x 230 x 45 mm

Matching notes: Burson lists the Soloist 3X GT’s analogue inputs as line level (35 kΩ input impedance). The Denafrips Ares II is rated at 2.2 V (RCA) / 4.4 V (XLR) output. ^{[5] [6] [3] [4]}

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.