Hi Everyone,
I am planning to build a loudspeaker based on the HifiBerry Beocreate Amplifier module. Since that amplifier is fairly limited in output power (30-60W max power depending on impedance and THD requirements), I would like to simulate what sound pressure levels I can reach with it through a specific chassis/enclosure combination.
Since this is an active system, I would opt for a closed enclosure with active low frequency amplification, since that, in my opinion, allows for a compact enclosure, with fairly deep bass and steep lower cutoff frequency (i.e. low subsonic stress on speaker).
Now, what always puzzled me a bit about speaker and amplifier design/selection was the amount of amplification power I'd need to reach a certain sound pressure level (at given distance, e.g. 1m). I need this information so I can properly select the right speakers (in a given enclosure volume) for the (fairly weak) Beocreate.
I also would like to know, for the mid range and tweeter section, at what crossover frequencies I should separate them and how I can simulate what sound pressure levels can be reached this way (taking into account their electrical and mechanical/acoustical limits). Especially for tweeters, often the limit is not mechanical but electrical stress (by overheating of wires or materials). Can this (electrical stress) be simulated at all with typical information from the producer?
Digging a bit deeper, I found this article, explaining the topic in more detail. I am aware, that some spreadsheets are provided with this article, but I would like to know if there is a simulation software which can also simulate the behavior of loudspeaker configurations at various amplification power levels, so one can see at what levels and frequencies which of its chassis run into trouble and starts becoming the limiting factor.
How are you approaching the problem of selecting the right speakers and/or amplification power and crossover frequencies so that the system harmonizes?
I am planning to build a loudspeaker based on the HifiBerry Beocreate Amplifier module. Since that amplifier is fairly limited in output power (30-60W max power depending on impedance and THD requirements), I would like to simulate what sound pressure levels I can reach with it through a specific chassis/enclosure combination.
Since this is an active system, I would opt for a closed enclosure with active low frequency amplification, since that, in my opinion, allows for a compact enclosure, with fairly deep bass and steep lower cutoff frequency (i.e. low subsonic stress on speaker).
Now, what always puzzled me a bit about speaker and amplifier design/selection was the amount of amplification power I'd need to reach a certain sound pressure level (at given distance, e.g. 1m). I need this information so I can properly select the right speakers (in a given enclosure volume) for the (fairly weak) Beocreate.
I also would like to know, for the mid range and tweeter section, at what crossover frequencies I should separate them and how I can simulate what sound pressure levels can be reached this way (taking into account their electrical and mechanical/acoustical limits). Especially for tweeters, often the limit is not mechanical but electrical stress (by overheating of wires or materials). Can this (electrical stress) be simulated at all with typical information from the producer?
Digging a bit deeper, I found this article, explaining the topic in more detail. I am aware, that some spreadsheets are provided with this article, but I would like to know if there is a simulation software which can also simulate the behavior of loudspeaker configurations at various amplification power levels, so one can see at what levels and frequencies which of its chassis run into trouble and starts becoming the limiting factor.
How are you approaching the problem of selecting the right speakers and/or amplification power and crossover frequencies so that the system harmonizes?