finish board well done lm3886 perfect combination mbl6010d 2.0 channel amplifier with speaker protection assembled | Электроника

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Free Shipping lm3886 perfect combination MBL6010D 

2.0 channel amplifier with speaker protection board 

Fully assembled and tested

Technical parameters:

  Output Power: Maximum power without distortion 68W * 2.   Speaker Impedance: 4-8 ohm impedance speakers can be connected.   PCB size: 173MM * 94MM * 1.6 double-sided sheet KB   Supply voltage: ACDual 18-28V 150W-300W toroidal transformer over to the subsequent amplifier board, dual 12-18V 20W transformer to MBL about pre-mixing boards. Recommended Dual 24V dual voltage 15V 200W toroidal transformer copper.   Pre-Amp Introduction:   Front MBL6010D - is the application of design when the most high-tech and electronic components consisting of flagship preamplifier. Is a plug-in electronic circuit design, to facilitate future upgrades. However, as the advent of twenty years still does not fall fame signs, MBL 6010 without the appearance of the shortcomings is the key one, the other is pretty sound noble enough, we can say downright charismatic front stage. Maybe it's the most criticized areas of high frequency extension, analytical, overall speed is still inadequate, however, all of these shortcomings in the new version MBL6010D advent (price more than 10 W) after improving over, it has not been frustrated high round feeling, high to ultra-high extension process is very clear and full of texture, unlike earlier versions like slightly dull. This change also makes the entire frequency analysis becomes average, frequency, harmonic and instrumental lines just right, not just in a particular band BEAUTIFUL. It is the size of the dynamic strength has caused, and has amazing transparency, sound field "visibility" excellent, while the low frequency of the compact is MBL over the years only to see them before the class.

Material Introduction:

1.Four10000uF/50V new Japanese import Nippon capacitors + dual rectifier bridge to ensure adequate power supply stable ! Small electrolytic capacitors have Nippon have NOVER and LELON other famous capacitor. In addition there are two 4700uF/35V imported Rubycon, and the 2200UF capacitor ELNA do filtering to ensure clean and stable power supply .   2. new Japanese imports of selected speaker protection 12V O mron Relay G2R-2, silver contacts, stable performance is very good , with functions : start delay ( about 3 seconds ) ; shutdown Interruption ( without a little bit off the impact of sound ) ; Amplifier output DC midpoint detection protection : abnormal amplifier output DC ( direct current output can be positive or negative for protection ) relay immediately disconnected.   3. Select the two coupling capacitor 1uF Wima capacitors imported from Germany , the small signal quality for each channel to ensure clean and clear ; remainder are Phil ips CBB capacitors.   4. op amp power supply is given through 317 and 337 , after two 5K precision adjustable resistor ensures that the output voltage is +15 V and -15V, smaller and more accurate voltage ripple to play a good effect !   5.Two new imported LM3886 chip of two channels. MBL preamp using a single op amp NE5534.   6. potentiometer Japan imported ALPS 50K.   Product pictures:     Power supply and power amplifier output traces are tinned to ensure it can withstand large dynamic amplifier high current     PCB board silkscreen with component values are very convenient DIY Power input with 3Pin 5.08mm, with 4Pin 5.08mm audio output terminal; it can be switched to 205 inserts;  introduction Pictured 205 inserts. Default shipping terminals and inserts for users to choose.       Amplifier circuit board area in terms of design or materials used are not ambiguous, our engineers develop and test more careful to ensure product quality sexual and always reputation.   Knows MBL6010D friends should know before the class crew MBL beautiful crisp sound quality is 5 times magnification,  there is no distortion of the original circuitry. Plus delightful evening run of 3886 mild warm sound  combination of the two, there immersive listening experience! !   Electrolytic capacitors are imported from Japan, the new capacitor, the famous Rubycon, Elna, Nippon.  LM317 adjustable voltage regulator for the front stage and LM337, have better ripple suppression.   O mron Relay control delay-off and better protect the user's Premier speakers.  Two high-power non-inductive resistor at the output, reflecting the details of the pursuit of our engineers.       AC power input terminals: GND AC AC  GND AC15  AC15 (Note  this sequence) ACDual 18-28V  dual 12-18V transformer . Recommended Dual 24V dual voltage 15V 200W toroidal transformer copper.     Audio input is 3Pin 5.08 binding posts, left and right channel and ground.  The right audio output terminal is connected directly to the speaker or speaker box.     The distance between two LM3886 is 70mm, the distance of the holes fins.     Board needs to work with a heatsink,  oh, please remember that the link does not include the heat sink       The Installation image for reference        Circuit design for reference