Hi all,
I've been searching for a mono 2 channel amplifiers. I'm trying to connect it to a woofer and a tweeter, total 80 watts. Every amplifier board I find is either single Channel or a stereo. Is there such thing as a multi channel mono amplifier?
Thanks and Regards,
I've been searching for a mono 2 channel amplifiers. I'm trying to connect it to a woofer and a tweeter, total 80 watts. Every amplifier board I find is either single Channel or a stereo. Is there such thing as a multi channel mono amplifier?
Thanks and Regards,
Hi Newish Guy,
What you are talking about is essentially what a stereo amplifier is, i.e., 2 similar mono amplifiers on the same board. Thus, you may use a stereo amplifier for the purpose of powering a woofer and tweeter (2-ways).
However, the division of power between the LF and HF is directly dependent on crossover frequency, with the 50:50 split occurring around 350Hz. Therefore, I would recommend using one stereo amplifier (each) for the lows and the highs, with power ratings selected according to the crossover frequency (below).
Crossover frequency (Hz) / Bass power (%) / Treble power (%)
250/ 40/ 60
350/ 50/ 50
500/ 60/ 40
1,200/ 65/ 35
3,000/ 85/ 15
5,000/ 90/ 10
All the best.
What you are talking about is essentially what a stereo amplifier is, i.e., 2 similar mono amplifiers on the same board. Thus, you may use a stereo amplifier for the purpose of powering a woofer and tweeter (2-ways).
However, the division of power between the LF and HF is directly dependent on crossover frequency, with the 50:50 split occurring around 350Hz. Therefore, I would recommend using one stereo amplifier (each) for the lows and the highs, with power ratings selected according to the crossover frequency (below).
Crossover frequency (Hz) / Bass power (%) / Treble power (%)
250/ 40/ 60
350/ 50/ 50
500/ 60/ 40
1,200/ 65/ 35
3,000/ 85/ 15
5,000/ 90/ 10
All the best.
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Wouldn't that channel the right channel to the tweeter and the left to the woofer? In the case of a stereo Audio file that has right and left channel the sound might sound weird.
You would need one stereo amplifier for the left speaker and another for the right speaker. You would use a stereo electronic crossover with woofer and tweeter outputs for each channel. You would feed the woofer and tweeter outputs of each channel of that crossover to the appropriate amplifier's inputs.
The amplifier has no clue what you are feeding it and doesn't care as long as it is audio.
There are other permutations including use a big amplifier for the bass channels (left and right) and a smaller one for the tweeters. You would still feed the appropriate output of the crossover to the amplifier driving that particular driver.
The amplifier has no clue what you are feeding it and doesn't care as long as it is audio.
There are other permutations including use a big amplifier for the bass channels (left and right) and a smaller one for the tweeters. You would still feed the appropriate output of the crossover to the amplifier driving that particular driver.
It's one stereo amplifier for the woofers and another for the tweeters that I meant when I said "each". That way you can also have differently powered amplifiers for lows and highs, as long as they're gain-matched to each other.
Gotcha,
So one channel amplifier for each driver.
The setup that I'm going with is a bluetooth speaker with two drivers. Any suggestions for an amplifier to use?
So one channel amplifier for each driver.
The setup that I'm going with is a bluetooth speaker with two drivers. Any suggestions for an amplifier to use?
Size the amplifier for the woofer. It is no problem to have too much power available for the tweeter. Two equal channels will be cheaper than getting a custom amplifier with less power at the tweeter channel.