The circuit board is used between the CD player and the post amplifier, for headphone amplifier also has a very good sound effect.

 

After the circuit board connected to the passive tone attenuation line has the ideal matching effect, performance is better than the ordinary amplification circuit.

 

Panasonic AA class line is a voltage controlled amplifier and current drive amplifier constitute a bridge (see below), the voltage controlled amplifier in the equivalent to no-load status (ie the output current is zero), even if connected to a heavy load，even if it is not the same as the voltage and current waveforms of complex dynamic impedance, the voltage controlled amplifier can still work in Class A state, because of its excellent performance and near-perfect sound performance and loved by the people.

 

AA class amplifier wide range, High Definition force, rich in detail, driving strong, sound balance.

 

Material: High-quality double-sided gold-plated glass plate(40 X 48mm), the import resistance component assembly. Japan "KOA" 1 / 4W high-precision five-color ring metal film resistance (error far less than 1%), Nissan electrolytic filter decoupling, two gold-plated hole IC socket, easy to upgrade, the default comes with 2pcs NE5532 op amp. the default comes with 2pcs NE5532 op amp(disassemble). Customers can also choose op amps such as OPA2134, OPA2604, AD826, OPA2111...

 

The board requires a +/- 15V DC power supply. Current consumption would be decided by the loading.

 

PCB color: Blue / Yellow (delivery random)

 

 

1x Class AA NE5532 OP Amp Preamp / Headphone Amplifier Board