Hello
can you advise me i want to have a sub to follow my chp 90 and chp 50 ideally it could be better if it's the same what can you advise me?
can you advise me i want to have a sub to follow my chp 90 and chp 50 ideally it could be better if it's the same what can you advise me?
Can you provide a link to the drivers that you are using? What amplifier do you have? Do you have an AV receiver that can provide some bass management functions? Do you have a preference for a single subwoofer, or would a pair of smaller stereo subwoofers be something that you might consider? Do you plan on running your main speakers full range, assuming they have sufficient power handling?
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I guess that the CHP-90 being referred to is this one: https://www.markaudio.com/online_shop/ch/chp-90/?
As an example, let us assume that the Markaudio CHP-90 driver is being used in a closed-box enclosure. Further assume that it is tuned to have a box Qtc = 0.7071, which results in an enclosure volume of around 6.8 litres. With its Thiele–Small parameters, the −3dB point of this alignment for this particular driver is at 95Hz.
A model of this driver's response when blended with a closed-box subwoofer is shown below. The low-pass filter on the subwoofer is a 2nd-order Butterworth topology, set to 50Hz. The subwoofer's low-frequency roll-off is modelled using a 2nd-order Butterworth high-pass filter set to 30Hz, which simulates a subwoofer with a Qtc = 0.7071. The polarity of the subwoofer needs to be inverted to get a reasonably smooth blending of the two outputs.
If higher-order Butterworth low-pass filters on the subwoofer are tried, they produce inferior results to the above without any phase response tuning.
As for a subwoofer recommendation, I'd be inclined to use a sealed subwoofer, as it will have the best transient response and the least amount of phase shift in its passband.
An SVS SB-1000 Pro 12-inch sealed subwoofer would definitely worth considering. It has provision for Butterworth low-pass filtering (1st/2nd/3rd/4th order), as well as continuous adjustment of phase shift to help with integration, as well as some EQ capability.
Similarly, there is also the SVS 3000 Micro dual-8-inch subwoofer that might suit, and it comes in a more compact enclosure.
Another subwoofer worth considering might be the Rythmik L12 Direct Servo subwoofer. This is also a sealed subwoofer, and offers switchable 2nd-order/4th-order low-pass filtering, as well as continuously variable phase adjustment.
The previously mentioned subwoofers appear to be very flexible devices, which should provide more than sufficient output when partnered with a pair of CHP-90-based 3.5-inch main speakers.
A model of this driver's response when blended with a closed-box subwoofer is shown below. The low-pass filter on the subwoofer is a 2nd-order Butterworth topology, set to 50Hz. The subwoofer's low-frequency roll-off is modelled using a 2nd-order Butterworth high-pass filter set to 30Hz, which simulates a subwoofer with a Qtc = 0.7071. The polarity of the subwoofer needs to be inverted to get a reasonably smooth blending of the two outputs.
If higher-order Butterworth low-pass filters on the subwoofer are tried, they produce inferior results to the above without any phase response tuning.
As for a subwoofer recommendation, I'd be inclined to use a sealed subwoofer, as it will have the best transient response and the least amount of phase shift in its passband.
An SVS SB-1000 Pro 12-inch sealed subwoofer would definitely worth considering. It has provision for Butterworth low-pass filtering (1st/2nd/3rd/4th order), as well as continuous adjustment of phase shift to help with integration, as well as some EQ capability.
Similarly, there is also the SVS 3000 Micro dual-8-inch subwoofer that might suit, and it comes in a more compact enclosure.
Another subwoofer worth considering might be the Rythmik L12 Direct Servo subwoofer. This is also a sealed subwoofer, and offers switchable 2nd-order/4th-order low-pass filtering, as well as continuously variable phase adjustment.
The previously mentioned subwoofers appear to be very flexible devices, which should provide more than sufficient output when partnered with a pair of CHP-90-based 3.5-inch main speakers.
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Hello
I cannot advise you on the subwoofers, but the "subwoofer" will not be the same whether you chose CHP90 or 50
Chp 90 may be used with a "normal" subwoofer, in which caase CHP90 will work fullrange (in a sealed box for example), while CHP50 will need a WaW, a woofer which will be crossed around 300-400 Hz.
Which one is better? I don't know. I'd rather have both 🙂
For the 50 you will need a woofer indeed, not a sub. I use the Scanspeak 26W8534G00 my waw config, now crossed at 300Hz LR4 with dsp (but did it analog passive before). That scanspeak is good but low power. But there are many drivers that now can be used. If it needs to be relative small, an SB SB23NRXS45, a Dayton RS225P-8, a Beyma 8BR40/N or a Scanspeak 22W4534G00 can alll fit well. And there are probally more like that, i just mention the first i remember.
