Joe’s Burson Timekeeper 3X GT with Spatial Audio X3

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Post Info

A large improvement overall from GAN amps I was using

The System

Listening with

Spatial Audio X3

Burson

Burson Timekeeper 3X GT · Power amplifier (monoblock / stereo) · discontinued
  • Power: 8 Ω: 110 (high gain); 30 (low gain) · 4 Ω: 180 (high gain); 55 (low gain)
  • Output impedance: <0.015 Ω (20 Hz-20 kHz)
  • Gain: 29 dB; 2 gain levels (high / low)
  • Inputs: 1x RCA; 1x XLR
  • Input impedance: 100 kΩ (SE); 200 kΩ (balanced)
  • Outputs: speaker binding posts
  • Other: Model R300 (“GT3”); max power 210 W; THD <0.03% @ 1 kHz; S/N 108 dB; Super Charger 32V/6.5A

[1] [2]

Also in the system

Holo Audio May · DAC: dual-mono discrete R2R DAC with separate PSU (Level 1 / Level 2 / KTE)
  • Output impedance: 27 Ω (RCA); 54 Ω (XLR)
  • Output voltage: RCA 2.9 V · XLR 5.8 V
  • Inputs: USB (PCM to 1.536 MHz, DSD1024 native); 2x coax; optical; AES; 2x I2S (HDMI); BNC
  • Outputs: RCA; XLR (fixed; no volume control)
  • DAC / chipset: discrete R2R ladder (dual mono); custom FPGA; Titanis 2.0 USB
  • Other: NOS PCM 48k: THD+N 0.00017% @ 1 kHz, DNR 130 dB; DSD128 output halves (1.45 V RCA / 2.9 V XLR); two 430 x 300 x 55 mm chassis

[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. Burson Timekeeper 3X GT product page
  2. Burson Timekeeper 3X GT User Manual V1.0 (Burson downloads)
  3. Holo Audio May: magnahifi.com (authorised dealer page)
  4. Holo Audio May: stereophile.com (authorised dealer page)