ChiFi Guru

Your guide in the world of Chinese HiFi

Loxjie A30vsOldchen (Laochen) EL34-B

A detailed side-by-side comparison of the Loxjie A30 and Oldchen (Laochen) EL34-B — two popular amplifiers in the Chinese HiFi space.

Specifications

Spec
Loxjie A30
Oldchen (Laochen) EL34-B
Class
D
A
Chipset
Infineon MA12070
Power
2 × 80W @ 4Ω
10W x 2
Inputs
USB (DAC), Optical, Bluetooth, RCA
Features
Headphone Amp, Remote Control, EQ Presets, IPS Display
Topology
Single Ended Triode (SET)
Tubes
EL34 x2, 6N9P x2, 5U4G x1
Wiring
Point-to-Point (Hardwired)
Remote Control
Tube Stage

Price (estimated)

Price
~$169
~$170
Difference
~$1.00 cheaper (Loxjie A30)

Things to Know

Loxjie A30

  • Low power output compared to Fosi/Aiyima; not suitable for insensitive speakers in large rooms.
  • Headphone output impedance is high, which can alter the frequency response of low-impedance headphones.
  • USB input is limited to 16-bit/44.1kHz (no high-res support via USB).

Oldchen (Laochen) EL34-B

  • The '5U4G' rectifier is often wired in hybrid mode with silicon diodes, which purists dislike.
  • Transformers run very hot, suggesting they are pushed near their saturation limits.
  • Stock Chinese EL34 tubes can sound harsh compared to budget re-issues like Mullard or JJ.

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