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I just want to double check with you on this. After some practice you can m5552 by ear and get it real close. I just am not totally into digital crossovers at this time, but, at some point, I feel they will get it to the point where I believe digital crossover filters will become indiscernible, sonically, from the best analog filters.

Combines four independent channels of noise gate in a compact one jb, space chassis. Originally Posted by Baron Yet still another known problem, most ,s had waffle IC sockets, so, the IC plugs into the socket, and these can be intermittent.

Results 1 to 6 of 6. Fantastic power supply, discrete circuitry, and high quality components, with superb engineering at work here. Advice on JBL M crossover. The result is a system that delivers balanced power response across both the horizontal and vertical planes for superb coverage. I would anticipate an audible difference. This flies in the face of current engineering trends and practices and is to some, highly questionable, but, we find the sound between the ranges to gel together seamlessly, and eminate as ONE using 3rd order butterworth filters, BUT higher order slopes 24db, 36db 48db, etc produce a sound that to our ears, make the ranges BASS, MIDRANGE, HIGHS sound like they are sparate from each other, and lacks the seamless image I consider natural sounding.


Advice on JBL M crossover

All times are GMT Wide bandwidth, flat response; 10 Hz to 50 kHz. All times are GMT Gate function with independent Threshold control for each channel. All four devices incorporate Servo-Balanced outputs for proper gain matching and elimination of extemporaneous noise.

You could use silver mica disc caps, said to be superior.

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If you don’t have an RTA just go with what sounds best to you. Another thing to point out, is that although the Urei can produce what I call a charming sound, hit it a bit too hard, you will hear the IC,s distort.

Power supply, mfd axial 25v caps stock, good to upgrade to an axial mFd 50v cap, there are three to replace. Noise Gate Control Ranges: Based on the schematic, its quad op amp circuits – generally called negative feedback design.

Then, another thing to consider is the state variable filter frequency controls of the and output level attenuator pots.

XLR input and output connectors. When dramatically increasing the size of the power supply capacitors, it is certainly a good idea to also increase current handling capacity of the rectifier diodes. See the attached pic That’s what I’ve been doing so far in m525 my in a bi-amp mode. That is a known problem with the Still would be biamping?


Sometimes, its a bitch getting the EXACT setting you had when you futz with the trying to dial it in to sonic perfection. External key inputs on each channel allows gate triggering from external sources. Sometimes, you lose the output on ch 1, ch 2, ch 3, etc, and a tap obn the faceplate brings it back. The bottom line is that you want to sum flat through the crossover point so 50Hz on either side on the dial doesn’t really matter as long as you are flat through jb transition.

The had a nice sound, and with work, still does, IMO, BUT, know this, there are crossovers avaialble today that legitimately surpass that crossover in sonic traits. I have found that although my modded ,s have an enchanting sound for analog, vinyl playback, it is NOT always the best when it comes to playing CD.

Wide bandwidth, flat response; 10 Hz to 40 kHz. The spec is to crossover at Hz – but if you are worried about the diff between and Hz, you might jjbl to use a scope and sig gen to be sure of the setting accuracy of your front panel controls Without mods I can hear ScottyJ coming down the hall already Seeing as that was almost a decade ago, I wouldn’t wait up for a reply.