Post by Boomzilla on Dec 17, 2018 13:42:19 GMT -5
I'd suspect that JL has more credibility than some internet jackleg - and their comments on subwoofer setup are worth quoting:
For many 2-channel audiophiles, it is intuitive to select a very low crossover frequency, especially if the satellite (main) speakers are large and capable of good low frequency extension on their own. After all, we have all been taught that subwoofers should be integrated in a manner that they “disappear” acoustically, and that low crossover frequencies are a good way to reach this goal. Unfortunately, this advice is usually WRONG.
In light of the above, we will share some very important advice, borne from extensive experience setting up subwoofer/satellite systems in the most demanding applications. An unnecessarily low crossover point (40 Hz, for example) wastes the potential benefit of your subwoofer in most subwoofer/ satellite systems. The goal is to unburden your satellites as much as possible, and to pass that low-frequency burden to your subwoofer. Done correctly, the resulting system is more dynamic, more “open” at all frequencies, and will exhibit a wider bandwidth at all listening levels. If you select a very low crossover frequency, you will leave a lot of those performance gains behind.
To get maximum benefit from the integration of a subwoofer (or subwoofers) into your 2-channel audio system, we recommend crossover frequencies between 60 Hz and 120 Hz, with 80 Hz being an excellent starting point (and often, a very good ending point). The (JL Audio CR-1 electronic crossover) allows you to select crossover frequencies outside this recommended range in the event of highly unusual system setup requirements.
If you are worried that a higher crossover frequency will lead to easily localizable bass or “disconnected bass”, stop worrying. The (JL Audio CR-1 electronic crossover)’s powerful features allow for superior integration at any crossover frequency. It is this precise integration that will truly make your subwoofer/satellite seamless and your subwoofers truly “disappear” into the sound stage. The ultimate reward is a remarkably open sound stage, with better imaging and much cleaner dynamics. Really amazing low-frequency qualities will also be evident, with complete unity between subwoofer and satellite outputs.
Now reading around all the advertising hype, I get two or three significant suggestions:
2. Don't use too low a crossover frequency - Greater benefit is found using a higher crossover point.
3. Don't worry about bass localization - it's unlikely at any reasonable crossover frequency.
Boom
For many 2-channel audiophiles, it is intuitive to select a very low crossover frequency, especially if the satellite (main) speakers are large and capable of good low frequency extension on their own. After all, we have all been taught that subwoofers should be integrated in a manner that they “disappear” acoustically, and that low crossover frequencies are a good way to reach this goal. Unfortunately, this advice is usually WRONG.
In light of the above, we will share some very important advice, borne from extensive experience setting up subwoofer/satellite systems in the most demanding applications. An unnecessarily low crossover point (40 Hz, for example) wastes the potential benefit of your subwoofer in most subwoofer/ satellite systems. The goal is to unburden your satellites as much as possible, and to pass that low-frequency burden to your subwoofer. Done correctly, the resulting system is more dynamic, more “open” at all frequencies, and will exhibit a wider bandwidth at all listening levels. If you select a very low crossover frequency, you will leave a lot of those performance gains behind.
To get maximum benefit from the integration of a subwoofer (or subwoofers) into your 2-channel audio system, we recommend crossover frequencies between 60 Hz and 120 Hz, with 80 Hz being an excellent starting point (and often, a very good ending point). The (JL Audio CR-1 electronic crossover) allows you to select crossover frequencies outside this recommended range in the event of highly unusual system setup requirements.
If you are worried that a higher crossover frequency will lead to easily localizable bass or “disconnected bass”, stop worrying. The (JL Audio CR-1 electronic crossover)’s powerful features allow for superior integration at any crossover frequency. It is this precise integration that will truly make your subwoofer/satellite seamless and your subwoofers truly “disappear” into the sound stage. The ultimate reward is a remarkably open sound stage, with better imaging and much cleaner dynamics. Really amazing low-frequency qualities will also be evident, with complete unity between subwoofer and satellite outputs.
Now reading around all the advertising hype, I get two or three significant suggestions:
1. Use a low pass filter on the satellites! - don't run them full range and then try to "blend in the subs below."
[KeithL taking a liberty here... correction... that would be a high-pass filter on the satellites 
]
]2. Don't use too low a crossover frequency - Greater benefit is found using a higher crossover point.
3. Don't worry about bass localization - it's unlikely at any reasonable crossover frequency.
Boom
