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Dbx 4BX Multi-Band Expander Manual. Report. Post on Oct Views. Category: Documents. Downloads. Download. prev. next. out of The dbx Model 4BX three-band dynamic-range expander features an “impact . The complete and well-written manual explains the reason for this restriction. Description modified each production run only for significant variations. Insignificant *minor* variations may occur. Model Designation: dbx 4BX. Literature Type.

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Fortunately, though I was exposed to a lot of that stuff damn near every place I worked sold itI did not invest very much time myself making dbx encoded tapes. Dave, Last PM from you was the 16th.

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Dbx 4BX Multi-Band Expander Manual – [PDF Document]

An engineer friend Majual know beefed up his 3BX-DS using the schematic and putting better components in the power supply section and replacing some IC’s with newer equivalents to boost performance. Or, it might simply be because these things sound bad my supposition. I use my dbx with an old drum machine. The handful I do have all cassettes is a mixed bag for playback these days but then again I majual say that about some of my older Dolby tapes B too, the difference being they are not completely unlistenable with Dolby decoding turned off.


Last edited by J B S; at Did not see digital copies on eBay.

I am going to take it apart tonight and clean it by hand. Find all posts by Class A Clown.

Originally Posted by cabraham. The dbx system, however, exhibits artifacts even when the deck is properly calibrated. Otherwise, looking up an old dBx Techician would be my first order of business.

The sound will be much cleaner.

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Dolby is the only good NR system. Learn More – opens in a new window or tab Any international shipping and import charges are paid in part to Pitney Bowes Inc. On the use for dbx NR on tapes and your friend’s retrospective opinion, I agree. I had to service each switch with DeoxIT.

Find all posts by Pacific Stereo. This item will ship to Dxb Statesbut the seller has not specified shipping options. Now, it’s pretty flaky again, so who knows if it’s even half working.

DBX 4BX User Manual – High Quality Service Manuals User Owner Instructions

I like the original 3BX model manusl best, but only when used with the remote which allows me to change the amount of gain applied to the HF range independently of the other two ranges. Is that the one to which you are referring?

Those pro rack processors work just fine too, in the hands of trained professionals, which is why they are still around and still being used today. Any international shipping and import charges are paid in part to Pitney Bowes Inc.


Xbx this post Link to post Share on other sites. Delivery times may vary, manyal during peak periods. Minimum monthly payments are required. If that is not it, I do know from some experience that some dBx units filter very low end base so as to not allow record warps to cause error in the RMS detection circuits.

Learn More – opens in a new window or tab Any international shipping is paid in part to Pitney Bowes Inc. As far as pro use goes, in sound production, the dbx units are used as special effects. Anybody else got rbx

It has that world famous pumping “dbx sound” on continuous signals though. The 4BX is not a noise reduction processor, it’s a dynamic range processor.

Dbx 4BX Multi-Band Expander Manual

All it does is add mid-range to my sources, all the punch of my low end disappears, even when it’s by-passed. Again, I was totally vbx on dbx in the late 70’s. Just called Peter at Musicians Service. Find all posts by Warped Bezel. I don’t hear any “expansion” at all. The 4BX is not an NR processor, it’s a dynamic range expander. Service and Owner’s manual on their way.