AMXEKR C500 Fully Balanced Pure A Tone Tube Preamplifier with Hifi Amplifier, Fever, High, Medium and Low Tone/pass-through

C500 Introduction:
1. The C500 tube preamplifier uses the CCS architecture newly developed by our store. It has low output impedance (500Ω) and strong load capacity. It can connect 4 amplifiers at the same time and has a very balanced frequency response.
2. The power supply is pure Class A parallel voltage regulation (tube high voltage 280V voltage regulation, tuning op amp voltage is +-20 voltage regulation); Class A power supply has many advantages, large dynamics, and the power supply output current is always greater than the current required by the amplifier, so that the power supply energy is always sufficient during large dynamics! The disadvantage is low efficiency, high heat generation, and high production design requirements.
3. The CCS architecture tube preamplifier has the advantages of a flat characteristic curve and constant static current compared to the conventional resistor-loaded tube preamplifier: it makes the listening experience very atmospheric and stable, and the designed output current is relatively large for the pure Class A mode. In addition to retaining the advantages of traditional tube amplifiers, it also has the characteristics of symphony domineering of stone machines.

Product Parameters:
Product name: Tube preamplifier C500
Frequency response: (Fre que cy response): 5Hz-120KHz (+0/-1dB)
Input Impedance/Sensitivity: (Input Impedance/Sensitiv ty): 100K/2V
Output impedance: OutputImpedance: 500 ohms
Total harmonic distortion:TotalHarmonicDistortion: 0.05%
Signal-to-Noise Ratio: 114dB
Power supply voltage: 220V (10% fluctuation) 110V area can be customized Power consumption: static 30 watts, maximum 70 watts
Amplification working mode: pure Class A 6 times (15dB)
Net weight: 10.65KG
Chassis material: all aluminum oxidation brushed

 

4 channels of output:
XLR1: Connect to the balanced input of the amplifier (upper left channel L, lower right channel R)
XLR2: connect to the balanced input of the amplifier
RCA1: Connect to the single-ended input of the amplifier
RCA2: Connect to the single-ended input of the amplifier
Note: The output can be connected to up to 4 stereo amplifiers at the same time. Customers can connect according to the number of existing amplifiers.
Power socket (2A fuse included)

 

 

In direct-through mode (TUNING light is off), high, medium and low adjustments have no effect. Direct-through mode is a pure pre-amplifier. It is not that the pre-amplifier signal comes in and goes out, but it is a conventional pure Class A pre-amplifier that is output after being amplified by the electron tube.

 

 
 
 
 
 
 
 
 
 
 
 

CCS amplification architecture of E88CC/6922+ECC82 combination
Regular models that E88CC can replace:
Made in the Soviet Union: 6922; 6H23; 6N11 (domestic);
Made in Europe and America: ECC88; 6DJ8; CCA
ECC82 can be replaced with 12AU7
The standard configuration of C500 is E88CC/6922+ECC82 combination (different models are marked on the internal circuit board)
Different models of electron tubes are produced in different countries. The standard configuration of our store is determined after multiple tuning and debugging. Customers are not recommended to replace it. If the customer has the corresponding electron tube and likes to tinker with it, he can give it a try (unscrew all the screws on the top cover of the preamplifier, push the top cover back for a few milliseconds and then remove it) to see the electron tube inside.