Jonathan’s Burson Soloist 3X GT with ZMF Verite, ZMF Atrium and Focal Clear

Published on

Sales Burson
May 13, 2022

Post Info

Feedbacks - Soloist GT3 | GT4
Schiit Bifrost 2, Schiit Valhalla 2 OTL

Generally very good, the GT sounds fantastic! Unbelievable detail retrieval, dynamics, driver control, and soundstage.
I do wish the fan was quieter, and the screw holding the battery cover on the remote was seriously over-tightened. The power cord was missing in the accessory pack also.

Overall, the amp is fantastic though!

The System

Listening with

ZMF Verite Open · Headphones: open-back, dynamic (vapor-deposited beryllium), circumaural

Impedance: 300 Ω
Sensitivity: ~97 dB/mW (approx., “~” as published)
Frequency response: not published
Plugs / cables supplied: not published (ZMF lists no connector type)

^{[1] [2]}

ZMF Atrium · Headphones: open-back, dynamic (biocellulose, N52), circumaural

Impedance: 300 Ω
Sensitivity: ~96 dB/mW (approx., “~” as published)
Frequency response: not published
Plugs / cables supplied: not published (ZMF lists no connector type)

^[3]

Focal Clear · Headphones: open-back, dynamic (40 mm Al/Mg M-dome), circumaural · discontinued

Impedance: 55 Ω
Sensitivity: 104 dB SPL / 1 mW @ 1 kHz ≈ 116.6 dB/V (calc.)
Frequency response: 5 Hz – 28 kHz
Plugs / cables supplied: 4-pin XLR; 6.35 mm; 3.5 mm cables supplied

Matching notes: At 55 Ω and 104 dB/mW, the Focal Clear is a low-impedance load, and an efficient one: about 0.47 V (4 mW, 8.5 mA) for 110 dB SPL (calc.). Burson does not publish a 55 Ω rating for the Soloist 3X GT. Its 32 Ω and 100 Ω ratings (8 W XLR / 4 W SE; 3.8 W XLR / 1.9 W SE) fall either side of it. The Soloist 3X GT’s 0.5 Ω headphone output impedance is 1/110 of the load. ^{[4] [5] [6] [7] [8]}

Dan Clark Audio AEON 2 Open

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

^{[7] [8]}

Also in the system

Schiit Bifrost 2

Schiit Valhalla 2 OTL

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.