Email sent to my audiophile friends:
Burson landed on my doorstep yesterday. Game changer! The best most detailed intimate hair-standing-on-end goosepimple lustful Musical experience I’ve had.
First off, it’s beautifully manufactured without a screw in sight. The entire body is a heatsink (https://bursonaudio.com/about-us/the-cool-case/). The volume knob is notched and goes to 99 (ridiculous). I have yet to go over 30 – but you easily could with no distortion – just too loud. As y’all know I like to document volume levels on my albums. It was easy to do on my old Burson (which was not reference level): I would keep increasing the volume until the high end (usually piano) became too bright/brittle. My max volume on old Burson was half-way maxed, so the new Burson has much more power. With this unit, the high-end never gets brittle – just gets louder and stays balanced with the rest of the frequency spectrum.
Detail. Did someone say detail? Wicked scary – like surreal. I’m hearing detail (like breathing, humming, chairs creaking) in old Bill Evans albums I’ve never heard quite clearly before. Listened to The Idea of North Evidence album – the one we all know well. I know this like the back of my ABC. It sounded, well, just different. SOOO many more timbres to the voices and pinpoint placement in the soundstage (think 5 degrees NW and 3 feet forward for alto, 17 degrees SE and 2 feet rear for tenor etc).
Soundstage. In all directions/dimensions. HUGE! Not sure how this is done on headphones.
Bass. Liquid deep responsive. Upright bass is woody and (again) detailed. NIN was orgasmic – could clearly hear/feel the bottom of that electric bass thingee.
Midrange. Given my experience with Idea of North – timbre-ey. The midrange has so many timbres/overtones (I know, I already said that – but don’t know any other way to describe it).
Treble. NO harshness on high and very-high end, even at volume. Cymbals are fantastic, especially when played very softly.
The old Burson along with a used pair of LCD-2 will now make their home in my CofC office.
j “Music is my drug” y
The System
Listening with
- Impedance: 70 Ω
- Sensitivity: 101 dB/1mW (at Drum Reference Point) ≈ 112.5 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 70 Ω and 101 dB/mW, the LCD-2 is a low-impedance load, and an efficient one: about 0.75 V (7.9 mW, 11 mA) for 110 dB SPL (calc.). Burson does not publish a 70 Ω rating for the Conductor 3 Reference. Its 32 Ω and 100 Ω ratings (5 W SE; 1.75 W SE) fall either side of it. The Conductor 3 Reference’s 0.5 Ω headphone output impedance is 1/140 of the load. [1] [2] [3] [4]
Burson
- Output power (headphone): 16 Ω 7.5 W · 32 Ω 5 W · 100 Ω 1.75 W · 150 Ω 1.16 W · 300 Ω 0.58 W
- Output impedance: 0.5 Ω (headphone); 1 Ω (pre out); 25 Ω (DAC out)
- Output voltage: RCA 2 V (DAC out)
- Gain: High / Medium / Low; dB not published
- Inputs: 2x RCA; USB (XMOS; PCM to 768 kHz/32-bit, native DSD512); Toslink; coaxial; Bluetooth 5.0 aptX HD; microphone
- Input impedance: 40 kΩ
- Input sensitivity: line level
- Outputs: RCA pre out; RCA DAC out; 2x 6.35 mm headphone
- DAC / chipset: 2x ESS ES9038Q2M
- Other: Model R180 (3R); SE only; THD <0.0015%; FR ±1 dB 0-58 kHz
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.
