Vittorio’s Burson Soloist 3X GT with Neumann KH 420 and Audeze LCD-XC

Published on

Sales Burson
March 11, 2024

Post Info

Feedbacks - Soloist GT3 | GT4
Audeze LCD-XC, Burson Soloist 3X GT, Neumann KH 420, RME ADI-2 DAC FS

Positive for the moment but I’m still evaluating.

The System

Listening with

Neumann KH 420 · Speakers: active tri-amplified 3-way midfield studio monitor, closed box (fabric dome tweeter + mid dome, 10 in woofer) · discontinued

Frequency response: 26 Hz – 22 kHz (±3 dB free field)
Other: amp peak 330 / 140 / 140 W; max SPL 116.4 dB free space / 122.4 dB half-space @ 1 m (3% THD); crossover 570 Hz / 2.0 kHz; 35 kg

^{[1] [2]}

Audeze LCD-XC · Headphones: closed-back, planar magnetic, circumaural

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. ^{[3] [4] [5]}

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

^{[4] [5]}

Also in the system

RME ADI-2 DAC FS

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.