Description:
The circuit refers to the Krel 100 circuit whose original machine value is up to 20,000 yuan and takes the essence of the new design, improves and uses three pairs of high-power tubes in parallel output, so that the output current greatly increases, the control force and driving force increase exponentially, driving the food The box is calm and calm, and it is easy to pick up the water at low frequency and dive deep.
The board design has been changed to the production test board several times, the selection of components, the adjustment of the timbre, etc. have been slowly repaired in time and time again. The LM334 is designed as a constant current source, and the tone style is also mainly balanced. Pure HIFI In fever style, the audio input is processed by 2240 and 970 tubes and sent to 610 and 9610 field tubes for processing. The field tube processing makes the sound soft and sweet, and then sent to the push tube (Onmux MJE15032 15033) to push the power level big tube three to six tubes. Sound reproduction after parallel output (Original ONON 15024 15025)
The design of the board is based on the level of fever HIFI standard: electrolysis chooses import where and KMF, all imports of the tube, the correction capacitor using German Red Weimar, PCB is 2.0 thick double-sided blue oil, full fever level
Also taking into account the convenience of installation, the board is designed with the socket wiring position of each terminal, making DIY more convenient and simple.
Each board is equipped with elaborate CNC heat-conducting aluminum, making it easy to install
KSA100 Introduction:
Krel's production of this machine and the KSA50 and KSA80 previously launched have been hailed as the most vocal Krel amplifiers among them, KSA50 is Krel's first amplifier, and it is also the pinnacle of its home (in terms of timbre) and KSA100 improved and upgraded. , was a fancier called a classic handed down machine
Until now, all major forums on the Internet have seen the KSA100MII being copied. The KSA100MKI circuit has a high degree of popularity among the fans. It is nothing more than sound quality and fascinating sound Because of this machine is very famous and created one after another myth
Parameter:
Product size:270MM *110MM *36MM
Frequency range: 10Hz-30KHz
Lowest distortion: < 0.0006%
Signal to noise ratio: 100dB
Input impedance: 50k
Channel separation: 90dB
Maximum output power: Class AB 300 watts 8 ohms (A class adjustable 60W, to adjust their own)
Input voltage: DC positive and negative 35V-65V (DC DC dual voltage and three wires) Transformer requirements above 400W (need to purchase additional power rectifier plate)
Output power: Class AB 300W+300W Class A maximum adjustable 60W 4-8 Euro (Adjust to Class A need to have enough heat sink, otherwise it will be overheated and burned out, generally the single piece to 2.5KG above the weight of the heat sink; When the delivery is adjusted in Class A and B Class A, Class A Class A is to be self-adjusted after having a large enough heat sink, and it is necessary to adjust it slowly.)
Note: The default quiescent current when shipped 200MA AB class delivery, to be transferred to the A class of friends can adjust themselves, the board shipped only with a cooling bridge, cooling bridge and can not replace the heat sink, before power on To add enough heat sink, it is recommended to be above 2.5KG
Packaging:
1PC 300W Amplifier Board