89 In stock
MM/MC Phono Preamplifier
IWISTAO MM Phono Amplifier Board Finished PCBA Turntables Phono Amp DUAL Attenuated RIAA Circuit HIFI Audio DIY
Model No: WMM-PA03K
Accurate straightforward sound, high speed broadband and large dynamic monitoring style! Easy to expose and reflect deficiencies of turntable system.
Do not connect this MM phono amplifier with turntable in antique furnishings, because most of them are no ground or turntables have phono amplifier inside. With these non-standard turntables, it will cause dry sound and high distortion output.
Input / Output and GND
Diagram of wire connection
(The sold item include ONLY mm phono amplifier finished board, NOT included other tranformer, socket, other terminals)
- Op amp IC: Ceramic package OPA2111KP by BB company
- 105 degrees Celsius ultra-low resistance capacitor array library.
- Attenuated MM phone amplifier.
- Input voltage: AC + 15V- 0 - - 15V
- Dimensions (W * D * H): 155mm * 80mm
- Net weight: 0.4 KG
Dimension diagram of PCB
Note: we provide you some items and components for your DIY. If you have enough capablities for circuit-reading, electronical components knowledge, assembling, soldering and problem-solving, you can buy them to enjoy DIY. If not, please don't buy them. We only provide limit technology support in this individial items itself.
Applications by HIFI audiophile
Learn more about phono stage amplifier
Phono amplifier is designed for a phono signal amplification while using Turntables amplifier inside for special sound equalization circuit (RIAA) for restoring vinyl, it cannot be used for other purposes.
Method for checking noise sources
After phono player connected with the phono amplifier stage, if there is a significant low-frequency noise, you need to check in which part of the noise. First unplug the phono amplifier input signal cable to disconnect connection between them, if the low-frequency noise disappeared or significantly reduced, that may explain the noise from the phono player; obvious if the same or reduce low frequency noise , the noise it is very likely to put itself caused by phono amplifier.
It may cause a greater frequency noise that no specialized non-standard phono ground wire.
Generally, nonstandard phonograph is a turntable part of music center to cope with this set of sound designed, when external phono amplifier put to ground that could cause a large hum due to the different ground ways
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