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Microphone Preamplifier

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Quoting product code: QS41U


About this product


Product overview

• Use any microphone in ‘Line’ or ‘Aux’ sockets• Simple plug-in operation• Includes plug-in mains adapter

This simple-to-use preamplifier boosts the output from any microphone. This is a 2-channel preamplifier for a stereo microphone or two normal microphones. Input is via two 1/4" sockets and output is via twin phono (RCA) sockets. Powered by plug-in 12V mains adapter (supplied).

Rated 4 out of 5 by from I have done a few discos for the community near where I live, and I use a laptop with my cd collection converted to mp3's with the sound output going through a pro-sound 1000 amp to two pro-sound speakers. I had a pro-sound microphone that I wanted to use for the discos but the line-in on the laptop wouldn't accept the microphone levels. I purchased the pre-amplifier to see if that would help, and it worked on it's own as input to the amplifier, but trying to use it through the laptop was still not working. Still, either way, the discos were a huge success and I will be continuing with them when I am next asked.
Date published: 2014-11-11
Rated 4 out of 5 by from The preamplifier works well but unfortunately the switch-mode power supply currently being supplied with it is very noisy. Substituting a liner power supply module cured the problem.
Date published: 2014-11-11
Rated 1 out of 5 by from The product was bought to enable me to feed a top quality microphone into the line input of my computer. It is far too hissy - even with shorted jacks in the inputs.
Date published: 2014-11-11
Rated 5 out of 5 by from Good product but could not make it work on a 12vdc mike for cctv,could not find a power 12vdc plug converter.
Date published: 2014-11-11
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Input: 7mVmax / 10k
Output: 3.2Vmax / 47k
Freq range: 5Hz- 40kHz
S/N ratio: > 63dB
Gain: 53dB
Power supply: 12Vdc, 100mA
Dimensions: 67 x 37 x 121mm
Weight: 200g

can this be used to directly drive a set of headphones or speaker

Asked by: Adrian
Unfortunately we no longer stock this item as it has been discontinued from our range.
Answered by: James
Date published: 2016-11-07

I bought the preamp from my local Maplin and I am having problems with it. I have connected it to the phono connection in my technics surround system and when plugged into the power the sound is like a loud fuzzing and the mic can not be heard over this??

Asked by: Llf125
I could only say try swapping the item for a new one, if the fault persists you would need to contact Technics.
Answered by: Dominic
Date published: 2016-04-04

Can this be used as a record deck preamp to hifi stereo unit to increase the cartridge input

Asked by: Teddy tails bs20
If you have a magnetic cartridge, this is not the unit you need; the one you want is the QM51F. If your cartridge is a low-output ceramic, use this unit but put a 2.2Megohm resistor in series with the input. (Actual value not critical but no less than 1Meg). I added the resistors to the sockets inside, which is easy to do (will void the guarantee of course), and it now gives excellent results with my old Sonotone 9TAHC.
Answered by: g7mzh
Date published: 2016-03-11

will this preamp work with an electret mic ie supply phantom power etc

Asked by: shane
Unfortunately we are unable to guarantee full compatibility for this item in your intended application I am sorry for any inconvenience this may cause you.
Answered by: Darren
Date published: 2016-02-29

Does this have balanced input/output?

Asked by: Steve
I am sorry but the item in question does not support use in your intended application.
Answered by: Les
Date published: 2015-12-15

Does it have a 3.5mm output?

Asked by: anonymous
Unfortunately no it doesn't have a 3.5mm output , it uses the quarter inch jack size.
Answered by: Darren
Date published: 2015-09-02

Are there any controls on this unit, like gain, volume or EQ? If not, can I get one that is a little more sophisticated?
Asked by: Jimmy
simply boosts mic level to line level.
Answered by: PS
Date published: 2015-07-17

does it have a headphone out socket
Asked by: banksie
no it does not.
Answered by: TJ
Date published: 2015-07-17
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