Jesus’s Burson Conductor 3X GT with Bowers & Wilkins 705 and Focal Clear

• 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 Conductor 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 Conductor 3X GT’s 0.5 Ω headphone output impedance is 1/110 of the load. ^{[1] [2] [3] [4] [5] [6]}

• Impedance: 300 Ω
• Sensitivity: 102 dB SPL @ 1 V ≈ 96.8 dB/mW (calc.)
• Frequency response: 4 Hz – 51 kHz
• Plugs / cables supplied: 6.35 mm unbalanced; 4.4 mm balanced

Matching notes: At 300 Ω and 102 dB/V, the HD 800 S is a high-impedance load that needs voltage more than current: about 2.5 V (21 mW, 8.4 mA) for 110 dB SPL (calc.). Burson rates the Conductor 3X GT at 0.64 W (XLR) / 0.32 W (SE) into 300 Ω, which is about 13.9 V / 9.8 V RMS (calc.), roughly 15 dB / 12 dB more than that. The Conductor 3X GT’s 0.5 Ω headphone output impedance is 1/600 of the load. ^{[7] [4] [5] [6]}

• Impedance: 23 Ω
• Sensitivity: 96 dB/mW ≈ 112.4 dB/V (calc.)
• Plugs / cables supplied: detachable cable (4-pin Hirose sockets)
• Other: 394 g

Matching notes: At 23 Ω and 96 dB/mW, the Dan Clark Audio ETHER C is a low-impedance load: about 0.76 V (25 mW, 33 mA) for 110 dB SPL (calc.). Burson does not publish a 23 Ω rating for the Conductor 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 Conductor 3X GT’s 0.5 Ω headphone output impedance is 1/46 of the load. ^{[8] [4] [5] [6]}

• Impedance: 110 Ω
• Sensitivity: 101 dB/1mW (at Drum Reference Point) ≈ 110.6 dB/V (calc.)
• Frequency response: 10 Hz – 50 kHz
• Plugs / cables supplied: 4-pin XLR cable; 4-pin XLR to 6.35 mm adapter cable; 6.35 to 3.5 mm adapter
• Other: recommended power >250 mW;

Matching notes: At 110 Ω and 101 dB/mW, the LCD-3 is a low-impedance load, and an efficient one: about 0.93 V (7.9 mW, 8.5 mA) for 110 dB SPL (calc.). Burson does not publish a 110 Ω rating for the Conductor 3X GT. Its 100 Ω and 150 Ω ratings (3.8 W XLR / 1.9 W SE; 1.3 W XLR / 0.65 W SE) fall either side of it. The Conductor 3X GT’s 0.5 Ω headphone output impedance is 1/220 of the load. ^{[9] [4] [5] [6]}

• 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); 1 Ω (pre out); 25 Ω (DAC out)
• Output voltage: RCA 2 V (DAC out)
• Gain: High / Low; dB not published
• Inputs: 2x XLR; 2x RCA; USB (XMOS; PCM to 768 kHz/32-bit, native DSD512); Toslink; coaxial (24/192); Bluetooth 5.0 aptX HD; microphone
• Input impedance: 40 kΩ
• Input sensitivity: line level
• Outputs: XLR/RCA pre / DAC out; subwoofer pre out; 6.35 mm + 4-pin XLR headphone
• DAC / chipset: 2x ESS ES9038 (suffix not stated)
• Other: Model R-181X (“GT3”); THD <0.0015%; FR ±1 dB 0-58 kHz; 24V/5A PSU

^{[4] [5] [6]}

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. Focal Clear: PDF (dam.focal-naim.com) (FP_Clear_GB-pdf page)
2. Focal Clear: PDF (dam.focal-naim.com) (UserManual_Clear_85x220_Web-pdf page)
3. Focal Clear: focal.com
4. Burson Conductor 3X GT product page (conductor-3x-gt page, archived 2022)
5. Burson Conductor 3X GT User Manual (Burson downloads)
6. Burson Conductor 3X GT product page (conductor-gt4 page)
7. Sennheiser HD 800 S: us.sennheiser-hearing.com
8. Dan Clark Audio ETHER C: hifiplus.com (magazine review reproducing mrspeakers spec)
9. Audeze LCD-3: audeze.com