This phono pre-amp box allows you to send the low-level phono signal from a vinyl turntable to a hi-fi system which requires a stronger line-level signal.
This is a dedicated stereo pre-amplifier box that boosts the signal level from your turntable/record player to a signal level required for a standard Hi-Fi system or receiver unit. This inline phono pre-amp is necessary if your main amplifier does not have a dedicated phono input.
This unit is powered by a standard 9V battery (not included). On the chassis, you'll find two screws that keep the lid on tight. These screws also allow you to mount your turntable's ground wire to the chassis and remove any unwanted hum in your record playback.
- Low noise circuitry
- RIAA EQ compensation
- On/Off power switch
- Earth/ground screws on chassis for removing hum
- Powered by a 9V battery (not included)
- Suitable for "moving magnet" pickups
- Compact metal chassis
A phono pre-amplifier is designed to boost the signal from a turntable or record player before the signal is passed to your Hi-Fi amplifier or receiver. Typically the signal output from a turntable or record player is quite weak, and it's required to be boosted before it hits the main amplifier of your stereo or hi-fi unit.
Some hi-fi amplifiers or receivers have a dedicated "phono" input and some modern turntables have a "line" level output - this simply means they have a phono preamp built-in and an external one is not necessary. But if your system or player doesn't have this feature built-in, you'll need a separate preamp (like this one).
Note: When the sound quality deteriorates, it is time to replace the battery.
Input Impedance: 50k ohms at 1kHz