@viridian +1
Mike
How good is the crossover in your loudspeakers?
I just watched a Danny Richie YouTube video from three weeks ago (linked below). Danny is the owner/designer of GR Research, a company that caters to the DIY loudspeaker community. He designs and sells kits that contain the drivers and crossover schematics to his loudspeakers, to hi-fi enthusiasts who are willing and able to build their own enclosures (though he also has a few cabinet makers who will do it for you if you are willing to pay them to do so).
Danny has also designed crossovers for loudspeaker companies who lack his crossover design knowledge. In addition, he offers a service to consumers who, while liking some aspects of the sound of their loudspeakers, find some degree of fault in those loudspeakers, faults Danny offers to try to eliminate. Send Danny one of your loudspeakers, and he will free of charge do a complete evaluation of it's design. If his evaluation reveals design faults (almost always crossover related) he is able to cure, he offers a crossover upgrade kit as a product.
Some make the case that Danny will of course find fault in the designs of others, in an attempt to sell you one of his loudspeaker kits. A reasonable accusation, were it not for the fact that---for instance---in this particular video (an examination of an Eggleston model) Danny makes Eggleston an offer to drop into the company headquarters and help them correct the glaring faults he found in the crossover design of the Eggleston loudspeaker a customer sent him.
Even if you are skeptical---ESPECIALLY if you are---why not give the video a viewing? Like the loudspeaker evaluation, it's free.
https://youtu.be/1wF-DEEXv64?si=tmd6JI3DFBq8GAjK&t=1
And for owners of other loudspeakers, there are a number of other GR Research videos in which other models are evaluated.
Showing 7 responses by ditusa
@russbutton. Nailed it. Thank you. Mike |
@waytoomuchstuff Wrote:
JBL measured the frequency response of my speakers @ 1 watt @ 10 watts and @ 100 watts and they have <1 dB compression of SPL output. See speaker specifications here last page. Mike |
JBL is talking about the whole system’s freedom from the effects of compression, not just the woofer. Also, the JBL 2234/2235/2245 are designed for studio monitor play back while the JBL 2226H/JBL 2241H are designed for PA system’s. ’’Power compression vs level is plotted in Figure I0. As the power levels were increased the chart--recorder gain was decreased a like amount. The degree to which the curves coincide shows the system’s freedom from the effects of compression. These curves were run using a narrow band tracking filter. The purpose of this tracking filter is to remove distortion components, which would otherwise influence the shape of these compression curves. As presented here, the compression curves reflect only the fundamental frequencies at each power level. Conventional distortion curves are also shown in Figure ll’’ See here page #5. Mike |
@curiousjim Wrote:
When I bought my speakers the manufacturer gave you the option to buy the active crossover and bypass the passive crossover in the speakers. Two years later I bought the active crossover. With the active crossover the sound quality was way above the passive crossover see here last page bi-amplification. @russbutton is correct. Mike
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@devinplombier Wrote:
A bit of history for the fun of it, the first powered and analog active speakers were from JBL1960-64 Hartsfield and Paragon see here, here and here. Mike |
@phusis +1 Mike |
