What is a mobile preamp? A preamp, as you would know, is a device that boosts sound signals to line level so that the same can be directed towards amplifiers and finally to the speakers. The preamp is also used when the sound has to be recorded in digital format Just connect an analog mic into the computer's sound card and you will hear no sound whatsoever. This is because the voltage produced buy a mic is less than 1 Volt. This is not sufficient for the line in slot to function properly. A mobile preamp is a device that performs the same function as a preamp with the only added function of mobility.
The environment inside a studio can be carefully regulated. You can set up sound proof barriers and acoustic friendly panels so that no external sounds creep in. However, you cannot do the same when you are shooting in a stadium with 50,000 people screaming at the top of their voices. You will have to make sure the sound you want to record is recorded properly in the digital format so that the same can be edited without any difficulty.
This is where a good quality portable preamp can make a huge difference. The operative words here are
- good quality, and
- portable
Choosing a portable preamp means that you should pay a lot of attention to the power source. Most such devices use batteries as their power source. There are many persons who decided to stop using such mobile devices altogether just because they bought a preamp that consumed too many batteries very quickly.
There are no quality issues due to the change in power source. Any good brand preamplifier should work equally well irrespective of whether it is powered by direct supply or by batteries.
One factor that you must consider when buy a portable pre amplifier is its weight. This may seem like a small factor. However, lug a heavy preamp around for a few hours and you will realize the importance of weight. Getting one that is too heavy is only going to convert it into an immobile preamp. What is the point of buying a movable preamp if you cannot move it around?
If you want, you can opt for a bus powered movable preamp that will be powered by your laptop via a USB cable. This will free you from the cumbersome task of carrying numerous replacement batteries as well.
Keep in mind that equipment like guitars and basses have high impedance. You cannot connect these equipments in the same slot as a microphone. Hence, you will have to alter your choice accordingly depending on the type of recording.
Avoid buying fragile preamps. They may be very light in weight but they will get damaged very easily. This will render you helpless and you will probably have to rely on the antique voice recorder to record the audio on tape. You will have to spend hours filtering and editing sound files after you have used a preamp to digitize the same.
There are numerous manufacturers offering different brands of mobile preamplifiers. It is best to make use of the web to purchase the same. One significant advantage that the web offers is that you can always return the stuff and get a better one as long as you comply with the returns policy of the online store.
Further, the web helps you get access to a wide range of products ranging from $100 to $350 or more. You can make your choice depending on your requirements and budget without even stepping out of your house.
