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Well made and excellent value when considering that it includes a switch-mode power- supply. The RIAA response is pretty good and current drawn from the optional PP3 battery supply is less than a milliamp. However, on the negative side, because it is a simple transistor circuit, there is no power-supply noise rejection and as a result one will hear the buzz from the mains power-supply during quiet recorded passages. But as long as one remembers to turn off the unit after use when operating off battery, noise should not be much of a problem.
Verified purchase: Yes | Condition: New
This preamp has no grounding screw, so I attached it to one of the screws available and it didn’t negate the loud humming sound even though I was told if the case is metal it should be fine, it was not. Anyway I found a DIY fix of hooking the the grounding wire under the lid in between the RCA input cables as showing in the photos attached and it sorted it.
Verified purchase: Yes | Condition: New
This little preamp works fine when using a battery to power it. The mains power supply provided is unusable, it creates a very annoying hum which can be heard over anything but very loud music. For the price, if you are prepared to run it on a battery buy it. If a mains power supply is essential, then this unit is not for you, unless you are prepared to invest in a better power supply.
Verified purchase: Yes | Condition: New
the power supply makes it buzz if you use a battery that eradicates that problem. The unit PCB ground needs connecting to the case I soldered a bras tab from the ground track to the case this makes it super quiet but I wanted a switched power source. Now hears my hack. the unit has 4 2SC1815L transistors which will handle up to 50v I use a (NAD C 320 BEE) now on the back panel it has a 12v switched power jack socket I have connected the preamp to this its totally silent dose not buz or even hiss it switches the preamp on and off with the amp so it can be tucked away out of sight and it doesn't need twiddling with. It sounds awesome I mean really good. I recommend this unit but it does need small tweaks to make it from OK to excellent. I like the fact its built using discrete components and not ICs. Its like old-school electronics my whole system now from the turntable to the speakers is transistors no ICs.Read full review
Verified purchase: Yes | Condition: New
I am very pleased with the Pre - Amp I did not have the problems listed by other reviewers, it worked “out of the box”. If you are having problems Google ” How to get rid of hum and eliminate other noises from your audio” I powered everything from one extension lead.
Verified purchase: Yes | Condition: New
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