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![]() LRB2-07-1W 1 Watt LED Upgrade II- Fits AA Mini Maglite US $30.24
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Watt Mini
1000 Watt Mini Generator Review And Use Part 3
Picking The Right Audio Amplifier For Your Home Theater
Picking the right audio amplifier can be overwhelming given the large number of diverse models and technologies. I will explain some crucial amplifier terminology and assist you pick the right model no matter what your particular application might be.
An audio amplifier will connect your audio source with your speakers by converting the rather weak source signal into a strong sufficient signal to drive your speakers.
Even though some audio sources have already a built-in amplifier, a separate amplifier offers you more flexibility for selecting the model that best complements your speakers. Some of today's miniature amplifier models can be concealed nearly anywhere due to their small size.
Many people will look at amplifier wattage first when choosing an amplifier. Output wattage is the level of energy the amplifier is able to deliver to the speakers. Driving low-sensitivity speakers (sensitivity is expressed in dB/W) calls for relatively high wattage. Moreover, driving outdoor speakers or speakers in a large room will require higher amplifier power. However, be careful not to overdrive your speakers. This can damage your speakers beyond repair.
However don’t be overly worried about wattage. An amp providing 20 to 50 Watts will give you more than plenty of power to properly drive a speaker in any but the largest room.
Amplifier output power is given in Watts rms (continuous) and Watts peak. The rms or continuous value tells you how much power the amplifier can supply constantly whilst the peak power figure tells the maximum wattage that the amplifier can provide for short intervals of time. Typically you should select an amplifier based on rms power. However, make certain that the amplifier has adequate headroom or peak power to avoid clipping of music signals.
Audio quality is just as significant as having adequate audio power and therefore you ought to also take a look at figures such as total harmonic distortion or THD. No amplifier is absolutely perfect and the amplified signal will contain some error components which will distort the signal to some amount. THD is either expressed in percent or dB. A high-quality amplifier will have a low distortion figure. Audiophile amplifiers will have distortion numbers of typically less than 0.05%. Consumer-grade amplifiers will have distortion figures of up to 10%.
Another figure related to audio quality is called signal-to-noise ratio and describes the level of unwanted noise the amplifier will add to the signal. Audiophile-grade amps will have an SNR of 100 dB or higher. Consumer-grade amps will have at least 80 dB signal-to-noise ratio.
The bulk of today’s amplifiers are based on a technology known as Class-D which offers higher power efficiency than amplifiers based an Class-A or Class-AB technologies. High efficiency means that little power is wasted as heat which can make the amplifier quite small. High power efficiency has led to the development of very small amplifiers. Some of these most recent mini amplifiers are no larger than a deck of cards. A lot of Class-D amplifiers, though, have higher distortion and a lower signal-to-noise ratio than Class-A or Class-AB amplifiers. Be certain to look closely at these numbers when choosing a Class-D type amplifier.
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Frequently Asked Questions...
How many watts is the MINI Cooper's stereo with the 10 speaker upgrade?
RMS OR MAX PLEASE STATE
Answer:
The upgrade system contains a digital amp @230 max watts along with the following:
4 bass speakers@ 40 watts each max
2 mid-range @ 25 watts each max
4 treble speakers @ 25 watts each max

































































