James’s Burson Funk with SB Acoustics Micro and Dan Clark Audio AEON Closed X

• Impedance: 32 Ω
• Sensitivity: 103 dB SPL / mW @ 1 kHz ≈ 117.9 dB/V (calc.)
• Frequency response: 15 Hz – 25 kHz
• Plugs / cables supplied: dual 3.5 mm TS cup sockets; 6.3 mm and airplane adapters
• Other: max input 50 mW

Matching notes: At 32 Ω and 103 dB/mW, the 99 Noir is a low-impedance load, and an efficient one: about 0.4 V (5 mW, 13 mA) for 110 dB SPL (calc.). Burson rates the Funk at 2.5 W (SE) into 32 Ω, which is about 8.9 V RMS (calc.), roughly 27 dB more than that. The Funk’s under 2 Ω headphone output impedance is less than 1/16 of the load. ^{[1] [2] [3] [4]}

• Output power (headphone): 16 Ω 3.5 W · 32 Ω 2.5 W · 100 Ω 0.6 W · 150 Ω 0.4 W · 300 Ω 0.15 W
• Power: 8 Ω: 35 W · 4 Ω: 45 W
• Output impedance: <2 Ω (headphone)
• Gain: not published
• Inputs: RCA L/R
• Input impedance: 38 kΩ
• Outputs: headphone (SE); speaker terminals
• Other: Model P-300; THD <0.03%; FR ±1 dB 0-35 kHz; speaker S/N 92.5 dB

^{[2] [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.

1. Meze 99 Noir: mezeaudio.com
2. Burson Funk product page (funk page)
3. Burson Funk product page (funk page, archived 2021)
4. Burson Funk User Manual V1.5 (Burson downloads)