Aiyima T8vsFosi Audio Box X2
A detailed side-by-side comparison of the Aiyima T8 and Fosi Audio Box X2 — two popular preamps in the Chinese HiFi space.
Specifications
Spec
Aiyima T8
Fosi Audio Box X2
Tubes
6N3 (Replaceable)
6J2 × 2 (Replaceable with 5654W)
Dac
ESS9018K2M
—
Inputs
Optical, USB, Coax, RCA, Bluetooth
Phono (MM) RCA
Outputs
RCA (Pre-out), 6.35mm Headphone
RCA
Features
Remote Control, OLED Display
Adjustable Gain Settings (39/42/45 dB)
Topology
—
Phono Preamp (MM) + Tube Buffer
Remote Control
✓
✗
Tube Stage
✓
✓
Phono Stage
✗
✓
Headphone Amp
✓
✗
Price (estimated)
Price
~$80
~$69
Difference
~$11.00 cheaper (Fosi Audio Box X2)
Things to Know
Aiyima T8
- ⚠Headphone output output impedance is not specified but struggles with very low impedance IEMs.
- ⚠The tube is difficult to roll (change) due to the chassis design.
- ⚠RCA output level is slightly lower than standard 2V line level.
Fosi Audio Box X2
- ⚠No power switch on the front (toggle switch is on the cable or back depending on revision).
- ⚠Stock tubes (6J2) are often microphonic; upgrading to GE 5654W or Riverstone tubes is almost mandatory.
- ⚠Can introduce hum if placed too close to power amplifiers or WiFi routers.
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