Great experience with multiple Burson amps over the years!
The System
Listening with
ZMF Caldera · Headphones: closed-back, planar magnetic (CAMS, ADS damping), circumaural
- Impedance: 60 Ω
- Sensitivity: ~94 dB/mW (approx., “~” as published)
- Frequency response: not published
- Plugs / cables supplied: not published (ZMF lists no connector type)
Burson
Burson Soloist Voyager · Headphone amplifier / preamp (Class-A)
- Output power (XLR / SE): 16 Ω 10 W / 5 W · 32 Ω 8 W / 4 W · 100 Ω 3.8 W / 1.9 W · 150 Ω 1.3 W / 0.65 W · 300 Ω 0.64 W / 0.32 W
- Output impedance: 0.5 Ω (headphone); 25 Ω (pre out)
- Gain: 3 levels: High full power (XLR 10 W / SE 5 W), Medium 50%, Low 10% (IEM); dB not published
- Inputs: 2x XLR; 2x RCA; mic bypass
- Input impedance: 38 kΩ
- Input sensitivity: RCA 2 V; XLR 4 V+ (line level)
- Outputs: XLR + SE headphone; XLR + RCA pre out; RCA subwoofer out
- Other: THD <0.0015%; FR ±1 dB 0-48 kHz; Standard/Deluxe: 24V5A PSU or Super Charger 5A, V6 Vivid or V7 Vivid Pro; SP02 installed
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 Voyager’s analogue inputs as RCA 2 V; XLR 4 V+ (line level) (38 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.
