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DIY Kit Karaoke sound board PT2399 NE5532 preamplifier microphone amplifier

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$14.50,  firm
Indiana, USA
$8.50, each additional $8.00, buyer pays
123station123 ( 95 )

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Product description
This KaraOK board adopts original PT2399 as echo audio processing,2pcs famous operationalamplifier American TI NE5532 ICs for microphone preamplifier and Sound processing. The PT2399 is a single chip echo processor IC utilizing CMOS technology. The PT2399 performs low distortion and low noise characteristic for audio purpose,and it is widely used for KARAOKE Mixer,CD/DVD Player/Recorder, Multimedia TV, Car Entertainment System,Music Instrument effecter,Electronics Toy,etc. NE5532 is a internally Compensated Dual Low Noise Operational Amplifier which is quitefamous in the operational amp field, and it's even been called for 'the emperor of Operational amplifiers'.
--The PCB adopts high quality double-side glass fibre board,red oil solder resist, copper deposited sand blasting processing, reasonable layout, beautiful and generous.

--This KaraOK board adopts 2 microphone inputs(Can be compatible with the electret microphone), the output volumes of 2 microphone inputs are controlled by 2 potentiometers.
The advantage of this design is:It can avoid that the voice of A singer can not be covered by that of B singer who has a high voice when they are singing together.
--Power supply:Single power supply,AC 9V-12V or DC 10V-18V(there is no Positive and negativepoles distinguish when use DC power input.)
This circuit is a mass production Mature solution, the excellent components selection,It's the best assistant for karaoke adn Guitar DIY fans!

It can be matched with most of the amplifier boards in our store!
Like singing and playing friends, please forget about work and the pressuretemporarily, relax yourselves appropriately, singing loudly as free as you like!
This KaraOK board adopts seperate power supply, if you get the AC/DC voltage directly from the power amplifier board, connection error may cause noise.(If noise occurs, you can mainly check the input power supply part, the connection of the KaraOk board ground line and( amplifier ground line/audio signal ground line.)


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We can accept the payment through paypal, ccnow, Bank T/T. Once we can receive the payment, we will arrange to send this item out from our factory China or Hong Kong within 2 business days.

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