Delivering a minimum gain of 40dB, this is normally more than enough for most applications. Gain can be increased by simply changing a single resistor value. See kit documentation below for full details.
The circuit can also take its input from an electret microphone by simply adding a resistor, both of which are included with the kit.Specifications
|Maximum input||~ 100 mV RMS (gain = 27 dB)|
|Maximum output||~ 2.5 V RMS with 12 V supply|
|Frequency resp.||~ 70 Hz to 45 kHz +/- 3 dB (Standard setup)|
|THD||< 0.1 % at 1V 1kHz|
|Gain||40dB max. (see Product Documentation link below for details)|
|S/N ratio||> 75 dBA|
|Product Formats||SELF-ASSEMBLY Electronic Kit (KT) or|
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
This 3-input mono mixer has independent level control for each input and separate bass and treble controls...
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Preamplifier module with an electret microphone incorporated into the board. It provides a line level output signal level and has an onboard potentiometer for gain adjustment. Operating voltage is 6-18V dc power supply (for examp...