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Product Description

Now updated for 2018.

Designed as a separate mono-channel structure, XA8800MNE is a full symmetrical current negative feedback Class A amplifier. The main circuit theory and technical features are as following:

The input buffering amplifying stage adopts fast and wide-frequency amplifying circuit with cross coupling compensatory structure. It could connect the push-pull amplifying dynatron as Darlinton circuit and control base current at a low level, ensuring the stabilization of the middle point voltage. Meanwhile, the adoption of transistor Constant Current Source as load ensures the steady and liable work on the stage.

Darlinton complex structure on the Voltage amplifying stage not only ensures enough voltage gain but also raises the input impedance to reach excellent match between the different stages. Besides, the adoption of Cascode circuit offers a good solution of the effect on the high frequency by the transistor junction capacitance. Thus the frequency width could be raised, the output characteristic curve of the bipolar transistor could be improved, the distortion of this stage could be reduced and high stabilization could be achieved.

On the current drive stage, it adopts high power FET to supply drive current for the end stage. The parallel output transistors on the end stage could reduce the output impedance, increase the output power, and improve the load capability with low resistor.

The static working current of 6 pairs high power transistors on the end stage as parallel output is about 300mA and each transistor works in the special linear area where current is higher. This could eliminate crossover distortion and switch distortion efficiently and reduce the output impedance. Equipped with impedance compensatory network including LRsRz and C on the output terminal, the load of this unit will be closer to pure resistor and difficult to cause self-excitation. Meanwhile, it could afford bigger damp to enhance the controlling ability of this unit to the loudspeaker.

Specifications:
  • Rated Output Power : 200W (8 ohms), 400W (4 ohms)S/N Ratio 110dB
  • THD 0.025%
  • Input Impedance 47K ohms
  • Number of Channels 1
  • Output One Pair Gold Plated Binding Posts
  • Input Sensitivity 1.7V
  • Frequency Response 5Hz~150KHz (±0.5dB)
  • Input RCA*1, XLR*1
  • Net Weight 24Kg
  • Dimensions (W*H*D) 305mm*202mm*427mm

Specifications

Product Type
Power Amplifier
Brand
Xindak
Condition
New

Delivery Information

Delivery is free for all orders over £250.

'In Stock' items ordered before 1pm will be dispatched the same day.

We use DPD Local 'Next Day Service' for most UK deliveries. Orders sent via 'DPD Local - Next Day Service' will be fully tracked with a 1-hour delivery timeslot on the day of delivery. Standard delivery is Monday to Friday.

Saturday delivery can be selected at checkout for £19.95.

Small items and LP's may be sent using Royal Mail.

Large/heavy items may be sent using TNT Express.

For all other countries please visit the 'Delivery Information' link in the footer.

Occasionally, due to stock demand, we can sell out. If this occurs when you make a purchase, we will inform you quickly. Most out of stock items are available for dispatch within 3 working days. If your purchase is urgent, please contact us to check availability.

Customer Reviews

Xindak XA8800MNE Mono Power Amplifier

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