Phono Equalizer Amplifier C3EQM2

Tube type phono equalizer amplifier with super reliable tube C3g. Plate load resistance is 15kΩ. The heater voltage is suppressed to ensure low noise. Battery operated and completely separated from the AC line. Amplifies to the level required by the preamplifier without adding anything extra.

Equipped with high reliability tube C3g

It is equipped with the ultra-reliable C3g, developed by Deutsche Telekom for telephone repeaters. The thin grid lines and large distance between electrodes enable high linearity amplification. The C3g is soldered directly onto the board to reduce noise at the contact point.

Battery powered and separated from the AC line

Current distortion and electromagnetic noise can enter through the AC line. This product is powered by a large nickel-metal hydride battery and is completely isolated from the AC line. Therefore, it amplifies to the level required by the preamp without adding anything extra.

・Battery Run Time: 5 Hours (Optionally 9 Hours)

・Battery Charging Time: 4 Hours (Optionally 8 Hours)

Built-in MC transformer

Built-in MC transformer. The MC cartridge can be amplified by connecting a cable. The output is also isolated from other devices by a transformer system, which is not affected by noise. The transformer uses a high permeability super permalloy core, which allows minute signals to pass through, resulting in a high degree of linearity.

Compatible with MC and MM Cartridges

MM cartridges are also supported. 1 MC and 2 MM inputs, 3 inputs in total. By adding an external MC transformer, two MM channels can be used for MC cartridges. Inputs and outputs are unbalanced and balanced.


Model 212PA-ST / 212PA-JH
Type Class-A Vacuum Tube Monaural Power Amplifier
Output Power 40w(4Ω, 8Ω)
Frequency Response 20-40kHz -3dB/20W
THD 1%/40W 1kHz, 0.2%/10W 1kHz
NFB None
Signal to Noise Ratio 90dB/10W(8Ω)
Input Sensitivity 1V/40W
Gain 25dB(8Ω)
Input Terminal UNBALANCED x1
Input Impedance 1.5kΩ
Volume Adjustment By the front volume
Dumping Factor 5 or more
Power Supply AC100/120/200/240V, 50/60Hz
Power Consumption 400w
Dimensions 188W×385H×563Dmm *
Weight 24.5kg
Finishing Anodic Oxide Coating, Rosewood Plates
Accessories AC Cords
Warranty Period 5 years(Excluding consumables)

* Knobs and terminals are not included.

  • The input impedance of this unit is 1.5kΩ. Please use a equipment with an output impedance of 300Ω or less.
  • Two models are available: STC 4212E (model: 212PA-ST) and Jinzhou Electronics 212E (model: 212PA-JH).
  • The 4212E made by STC is a rare item, so please contact us for availability.
  • Do not touch the vacuum tube as it is hot and may cause burns.
  • Vacuum tubes are treated as consumables and are not covered by warranty.
  • Product appearance and specifications are subject to change without notice.


Inc 21% VAT Ex VAT
Phono Equalize Amplifier € 15,125 € 12,500