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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. 

 

 

bdp24

Showing 1 response by tom899

tom899
14 posts
 

I believe in good quality component parts, and, good measurements to understand what is going on. I’m a licensed amateur radio enthusiast, and, have a background in automobile NVH testing for sound and vibration, for 35 years.

I’ve built many Heathkit projects back in the day, understanding electronics and components are one of my hobby passions. I have a pair of Klipsch RP8000f’s, which are towers, and a RP504C center. A few years ago I decided to upgrade the crossovers from GR Research, A very fun (for me) project. I can assure you, the quality of parts from GR Research is on another level from the stock parts. Plus, in these particular speakers, the data measurements clearly show they needed help.

There are many other contributors in listening to a system, amp, preamp/processor, cabling, room size, room acoustics, etc... So, my feeling is, when one decides to look at data, and decide to try a new speaker crossover, please take into consideration if your system is capable of resolving the change.

My most recent speakers, MoFi SourcePoint 888’s for L/R, and MoFo Sourcepoint 8 for center. No one has sent in an 888 yet, but someone has sent in an 8. The original designer of these speakers, Andrew Jones, is well known as a speaker designer, and highly respected. Danny’s measurement on the 8 clearly shows the speaker and crossover were designed correctly, but just to a price point. Other than upgrading the parts quality and making a small change to take care of a huge impedance rise, not much needed to be changed.

If you care to take a look at the MoFi 8 crossover upgrade video.

Danny Tackles Andrews Jones: The Source Point 8! Spoiler Alert (It’s Really Good)

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