Jed’s Burson Soloist 3X GT with Audeze LCD-X

Published on

Sales Burson
September 8, 2023

Post Info

Feedbacks - Soloist GT3 | GT4
Audeze LCD-X, Burson Soloist 3X GT, Gustard R26

Takes the sound to another level. Great synergy

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 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. ^{[1] [2] [3]}

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

^{[2] [3]}

Also in the system

Gustard R26 · DAC: discrete R2R DAC / network streamer · discontinued

Frequency response: 20 Hz – 20 kHz (±0.2 dB)
Output impedance: 100 Ω
Output voltage: RCA 2.5 V (fixed) · XLR 5 V (fixed)
Inputs: USB (768 kHz/32-bit, native DSD512); coax; AES; optical (192/24, DoP64); I2S (to 768 kHz, DSD1024); LAN streaming; Bluetooth; 10 MHz clock in (BNC)
Outputs: RCA; XLR
DAC / chipset: discrete R2R ladder; XMOS XU216
Other: dynamic range 115 dB; SNR 122 dB; crosstalk -134 dB; THD+N <=0.003% @ 1 kHz; 30 W

Matching notes: Burson lists the Soloist 3X GT’s analogue inputs as line level (35 kΩ input impedance). The Gustard R26 is rated at 2.5 V (fixed) (RCA) / 5 V (fixed) (XLR) output. ^{[4] [5] [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.