49 In stock
MM/MC Phono Preamplifier
IWISTAO MM Phono Stage Amplifier Moving Magnet Attenuated Negative Feedback for LP Phono Ceramic Seal XP5532 HIFI Audio
Model No: WMM-PA010
It is a MM phono stage amplifier with op amp and negative feedback attenuation, using an AC12V split power adaptor. Its gain is about 40 dB output through two stages signal amplification. The PCB layout of the unit is very reasonable; adopt many HIFI grade components and parts. It is a basic equipment to listen to vinyl.
1. All-aluminum chassis with six boards and even aluminum structure, easy disassembly. Surface drawing process refined aesthetic, and assembled four non-slip rubber machine feet.
2. Input and output terminals used high-grade copper gold-plated RCA jacks with nut insulated, elastic fit socket, which shell is environmental protection anaerobic brass material and outlet center hole is phosphor bronze, with good contact performance, to ensure that multiple pluggable not loose, not soft, no distortion, and good electrical contact.
3. Imported Teflon silver plated wire bonding system, Teflon sheath material is an excellent conductor, , but it is very small that media effects and capacitive effects on the signal have a negative effect, it has good durable and anti-vibration effect, makes signal accurate high-speed transmission.
4. Equipped split power supply with 12V AC adapter, its noise can be reduced to a minimum and improve sound quality.
5. Used LM317, LM337 voltage regulator to output a sufficiently stable negative DC voltage.
6. Used Pressure cassette ground terminals.
7. Selection HIFI grade components and parts. 10 Nis san 35V 1000μusing electrolytic filter, Japan "KOA" 1 / 4W colored ring precision metal film resistors (error typically much less than 1%), two pcs ceramic seal Taiwan XP5532 dual op amp.
8. 2 pcs gold-plated IC socket easy to upgrade as your favorite.
1. Op amp IC: Ceramic seal XP5532 by Taiwan
2. Gain: 40dB
3. Copper gold-plated RCA input and output jacks
4. Power adaptor supply.
5. Attenuated MM phone amplifier.
6. Input voltage: AC 110-220V/50-60Hz
7. Dimensions (L * D * H): 155mm * 120 mm * 50 mm
8. Weight: 1 KG
AC12V Power adaptor x 1
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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