Selvakumar’s Burson Conductor 3X with beyerdynamic DT 1770 PRO

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Sales Burson
January 7, 2020

Post Info

Feedbacks - Conductor 3R | 3XR
ASUS Strix Raid DLX, ASUS Xonar Phoebus, Audeze EL-8, Audeze LCD-2, beyerdynamic Custom One Pro, beyerdynamic DT 1770 PRO, beyerdynamic DT 1990 PRO, beyerdynamic DT 880, beyerdynamic DT 990 PRO, Burson Audio Playmate, Burson Play, Creative Sound Blaster ZxR, EVGA Nu Audio, Fostex HP-A4BL, Mayflower Electronics ARC, Mayflower Electronics O2/ODAC, Schiit Jotunheim, Sennheiser HD 58X Jubilee, Sennheiser HD 600, Sennheiser HD 6XX

I love Burson always because its neutral,crystal clear audio and conductor 3x is no exception finest audio jewellery for 2020 and the coming year

Additional Beyerdynamic DT 880 Pro review video by Consordini

The System

Listening with

beyerdynamic DT 1770 PRO · Headphones: closed-back, dynamic (45 mm Tesla), circumaural · discontinued

Impedance: 250 Ω
Sensitivity: 102 dB SPL (1 mW / 500 Hz) ≈ 108.0 dB/V (calc.)
Frequency response: 5 Hz – 40 kHz
Plugs / cables supplied: detachable cable: 3-pin mini-XLR at cup; 6.35 mm stereo jack plug

Matching notes: At 250 Ω and 102 dB/mW, the DT 1770 PRO is a high-impedance load that needs voltage more than current: about 1.3 V (6.3 mW, 5 mA) for 110 dB SPL (calc.). Burson does not publish a 250 Ω rating for the Play. Its 150 Ω and 300 Ω ratings (0.2 W SE; 0.1 W SE) fall either side of it. The Play’s 8 Ω headphone output impedance is 1/31 of the load. ^{[1] [2]}

beyerdynamic DT 1990 PRO · Headphones: open-back, dynamic (45 mm Tesla), circumaural · discontinued

Impedance: 250 Ω
Sensitivity: 102 dB SPL (1 mW / 500 Hz) ≈ 108.0 dB/V (calc.)
Frequency response: 5 Hz – 40 kHz
Plugs / cables supplied: detachable cable: 3-pin mini-XLR at cup; 6.35 mm stereo jack plug

Matching notes: At 250 Ω and 102 dB/mW, the DT 1990 PRO is a high-impedance load that needs voltage more than current: about 1.3 V (6.3 mW, 5 mA) for 110 dB SPL (calc.). Burson does not publish a 250 Ω rating for the Play. Its 150 Ω and 300 Ω ratings (0.2 W SE; 0.1 W SE) fall either side of it. The Play’s 8 Ω headphone output impedance is 1/31 of the load. ^{[3] [2]}

beyerdynamic Custom One Pro

beyerdynamic DT 990 PRO · Headphones: open-back, dynamic, circumaural

Impedance: 80 Ω (page default; 250 and other versions sold)
Sensitivity: 96 dB SPL (reference not stated on page)
Frequency response: 5 Hz – 35 kHz
Plugs / cables supplied: straight cable with 3.5 mm plug and 6.35 mm adapter (current version)

^[4]

beyerdynamic DT 880 · Headphones: semi-open, dynamic, circumaural

Impedance: 250 Ω (PRO page)
Sensitivity: 96 dB SPL (reference not stated on page)
Frequency response: 5 Hz – 35 kHz
Plugs / cables supplied: coiled cable with 3.5 mm plug and 6.35 mm adapter (PRO)

^[5]

Audeze EL-8 · Headphones: open-back, planar magnetic, circumaural · discontinued

Impedance: 30 Ω
Sensitivity: 102 dB/1mW (at Drum Reference Point) ≈ 117.2 dB/V (calc.)
Frequency response: 10 Hz – 50 kHz
Plugs / cables supplied: not published

Matching notes: At 30 Ω and 102 dB/mW, the Audeze EL-8 is a low-impedance load, and an efficient one: about 0.44 V (6.3 mW, 15 mA) for 110 dB SPL (calc.). Burson does not publish a 30 Ω rating for the Play. Its 16 Ω and 32 Ω ratings (2 W SE; 1 W SE) fall either side of it. The Play’s 8 Ω headphone output impedance is 1/3.8 of the load. ^{[6] [2]}

Audeze LCD-2 · Headphones: open-back, planar magnetic, circumaural

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 Play. Its 32 Ω and 100 Ω ratings (1 W SE; 0.32 W SE) fall either side of it. The Play’s 8 Ω headphone output impedance is 1/8.8 of the load. ^{[7] [2]}

Sennheiser HD 600 · Headphones: open-back, dynamic, circumaural

Impedance: 300 Ω
Sensitivity: 97 dB SPL @ 1 kHz, 1 V (as published) ≈ 91.8 dB/mW (calc.)
Frequency response: 12 Hz – 40.5 kHz
Plugs / cables supplied: 3.5 mm stereo jack plug with 6.3 mm adapter; 3 m cable
Other: THD <0.1% (1 kHz, 1 V)

Matching notes: At 300 Ω and 97 dB/V, the HD 600 is a high-impedance load that needs voltage more than current: about 4.5 V (67 mW, 15 mA) for 110 dB SPL (calc.). Burson rates the Play at 0.1 W (SE) into 300 Ω, which is about 5.5 V RMS (calc.), roughly 2 dB more than that. The Play’s 8 Ω headphone output impedance is 1/38 of the load. ^{[8] [9] [2]}

Sennheiser HD 58X Jubilee · Headphones: open-back, dynamic, circumaural · discontinued

Impedance: 150 Ω
Sensitivity: 104 dB SPL @ 1 kHz, 1 V (as published) ≈ 95.8 dB/mW (calc.)
Frequency response: 12 Hz – 38.5 kHz (-10 dB)
Plugs / cables supplied: 3.5 mm gold-plated stereo jack plug; 1.8 m OFC detachable cable

Matching notes: At 150 Ω and 104 dB/V, the HD 58X Jubilee is a high-impedance load that needs voltage more than current: about 2 V (27 mW, 13 mA) for 110 dB SPL (calc.). Burson rates the Play at 0.2 W (SE) into 150 Ω, which is about 5.5 V RMS (calc.), roughly 9 dB more than that. The Play’s 8 Ω headphone output impedance is 1/19 of the load. ^{[10] [2]}

Sennheiser HD 6XX · Headphones: open-back, dynamic, circumaural

Impedance: 300 Ω
Sensitivity: 103 dB SPL @ 1 kHz, 1 V (as published) ≈ 97.8 dB/mW (calc.)
Frequency response: 10 Hz – 41 kHz
Plugs / cables supplied: 3.5 mm stereo jack plug (6.35 mm adapter); 1.8 m cable
Other: THD <0.1% (1 kHz, 1 V)

Matching notes: At 300 Ω and 103 dB/V, the HD 6XX is a high-impedance load that needs voltage more than current: about 2.2 V (17 mW, 7.5 mA) for 110 dB SPL (calc.). Burson rates the Play at 0.1 W (SE) into 300 Ω, which is about 5.5 V RMS (calc.), roughly 8 dB more than that. The Play’s 8 Ω headphone output impedance is 1/38 of the load. ^{[11] [12] [2]}

Burson

Burson Conductor 3X · DAC / headphone amplifier / preamp family (Conductor 3X Performance / 3X Reference / 3X GT) · discontinued

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: USB (XMOS; PCM to 768 kHz/32-bit, native DSD512); Toslink; Bluetooth 5.0 aptX HD; microphone (3XR / 3XGT add analogue and coaxial inputs)
Outputs: XLR pre / DAC out; 6.35 mm + 4-pin XLR headphone
DAC / chipset: ESS ES9038Q2M / ES9038 (1x in 3XP, 2x in 3XR / 3XGT)
Other: 3XP (M180X): 6/3 W @16 Ω, 3/1.5 W @32 (bal/SE), 1x ES9038Q2M. 3XR (R180X): 7.5/3.75 W @16, 5/2.5 W @32, 2x ES9038Q2M. 3XGT (R-181X): 10/5 W @16, 8/4 W @32, 2x ES9038. All THD <0.0015%, FR ±1 dB 0-58 kHz.

^{[13] [14] [15]}

Burson Play · DAC / headphone amplifier / preamp (PC card-size) · discontinued

Output power (headphone): 16 Ω 2 W · 32 Ω 1 W · 100 Ω 0.32 W · 150 Ω 0.2 W · 300 Ω 0.1 W
Output impedance: 8 Ω (headphone); 35 Ω (pre out)
Gain: not published
Inputs: USB
Input impedance: 35 kΩ
Outputs: RCA pre out; headphone jack
DAC / chipset: ESS SABRE32 ES9018
Other: THD <0.02%; DAC PCM to 384 kHz, DSD256

^[2]

Burson Playmate · DAC / headphone amplifier / preamp · discontinued

Output power (headphone): 16 Ω 1.8 W · 32 Ω 2 W · 100 Ω 0.5 W · 150 Ω 0.3 W · 300 Ω 0.1 W
Output impedance: <2 Ω (headphone); 15 Ω (pre out)
Gain: not published
Inputs: USB (XMOS; PCM to 768 kHz/32-bit, native DSD512); Toslink
Input impedance: 38 kΩ
Outputs: RCA pre out; headphone jack (SE)
DAC / chipset: ESS SABRE32 ES9038 (suffix not stated)
Other: Original Playmate (Playmate 1); THD <0.002%; FR ±1 dB 0-35 kHz

^[16]

Also in the system

ASUS Strix Raid DLX

ASUS Xonar Phoebus

Creative Sound Blaster ZxR · Sound card: PCIe sound card + DBpro daughterboard + Audio Control Module · discontinued

Output impedance: not published
Output voltage: RCA not published
Gain: not published
Inputs: line in 2x RCA (DBpro); Toslink in; 6.35 mm mic
Outputs: amplified 6.35 mm headphone; 2x RCA; 2x 3.5 mm (rear, C/sub); Toslink out
DAC / chipset: not published
Other: SNR 124 dB; Sound Core3D; up to 24-bit/192 kHz; “600 Ω headphone amplifier”; swappable op-amps

^[17]

EVGA Nu Audio

Fostex HP-A4BL

Mayflower Electronics ARC

Mayflower Electronics O2/ODAC

Schiit Jotunheim · Headphone amp: balanced / SE headphone amp + preamp (optional DAC or phono card, original version) · discontinued

Frequency response: 20 Hz – 20 kHz (-0.1 dB); 2 Hz – 700 kHz (-3 dB)
Output power (XLR / SE): 32 Ω 5 W / 1.5 W · 300 Ω 0.9 W / 0.35 W
Output impedance: <0.1 Ω
Gain: 2 (6 dB) / 8 (14 dB)
Inputs: balanced XLR; SE RCA; internal card (DAC or MM phono: 42 dB, 47k / 100 pF)
Outputs: 4-pin XLR balanced headphone; 6.35 mm SE; balanced + SE preamp out
DAC / chipset: optional card (AKM AK4490 or multibit), not standard
Other: THD <0.001% (1 V); IMD <0.0015%; SNR >109 dB (A, ref 1 V); 25 W

^[18]

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.