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In Reply to: RE: Okay.. posted by marc-homeslice on June 23, 2007 at 11:38:10
A thoroughly cleaned LP is an excellent way to start the recording routine. The dbx 150 type 1 noise reduction unit can decode any of type 1 dbx encoded recorded materials if you happened to come across with them. BTW, with the 150 in the chain, the tape hiss noise is literally obliterated and it leaves you with nothing but the music.
I don’t know how these unit extents the frequency response of any RTR to a flat out of 20 H- 20 kHz all I know is that it does as the manual claims it to be and also you can readily hear the improvement.
Follow Ups:
My Teac X-1000R/2000R decks come equipped with DBX and I don't use it. Although it is good at eliminating about 95% of the hiss, the tradeoff is that there is quite a noticeable rolloff on certain frequencies. It's most noticeable during solos or soft passages that have heavy emphasis on percussion. I found the DBX to be very difficult to worth with and eventually re-recorded all of my DBX tapes non-encoded. Also, unlike Dolby, tapes encoded with DBX can NOT be played on a non DBX machine. And tapes not encoded with DBX cannot be later played with it. Not unless you want to risk some serious clipping...and a lot of damage to your speakers. In my opinion, it isn't worth it. I opine that you are better off practicing good head hygiene (cleaning/demagging) as well as keeping the best possible bias/eq match with your tapes, along with maintaining a good input balance low enough to not cause saturation and high enough to mask the hiss.
they are territorial and proprietorships so obviously they are not compatible. As the matter of fact the dbx noise reduction system aren’t compatible with each other either as type I and type II model were made with different intentions in mind. The dbx that came with Teac as I have one of the X series RTR at home is from the type II, which is its main and intended purposes was for home use only. I agree they are not very good although they are still better than the dolby noise reduction system. The type I however especially the 150 model, which is the one that I’m using with my A-77 and Otari 5050 MKIII-2 tracks were made for professional use. BTW, it has clearly stated on the manual that the RTR that you are using should be of quality made to begin with so you can take advantage of its full capabilities.
i just bought a dbx-150, but i don't have the means of calibrating it using test tones- it has two screw-head adjustments on the front for this purpose.
can you get good results without worrying about fine-adjusting the unit in this manner? please let me know- THANKS!
btw, i have to disagree about using dbx-1 on the teac x-2000r. the source-tape comparison of cd's to me sound virtually identical. a deck with the std. 65db of dynamic range and a cd with 100+ db's of dynamic range is one of the reasons i bought the teac- plus i felt the revox B-77's had seen better days in spite of their reputation. plus you can even see dbx implemented on some fairly high-end tascams. i can certainly appreciate that it (dbx) may have its limitations to critical applications, if you REALLY want a pro-machine, the x-2000r is mostly plastic with inexpensive electronics- i wouldn't call it pro-sumer as much as i have enjoyed using it for over the years. very little is unfortunately- you either get an Ampex (tube) deck or a scully, etc. or you have to settle for a teac or a "broadcast" machine.
the best thing to do is not to over use it. That said, moderate application is the key here. I find that if I adjust the dial on the input and output signal with similar value I get better results. However, if I dial in the input signal too much you get too much distortion as some RTR cannot take it especially the cheaper models. Nevertheless, if you dialed in the input signal too low the sound becomes flat and lifeless.
FWIW, I have my dbx 150 type 1 input and output signals both dialed in at around 11: 00 o’ clock I find that this the best configuration for my Otari 2 tracks machine as it sounded very natural coupled with excellent dynamics.
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