Tape Project Forum
Tape Machines => Reel to Reel Tape Machines => Topic started by: heideana on September 17, 2007, 12:16:27 PM
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Hi all...per my last post, I've started to switch over recording things using IEC rather then NAB eq. I'm not sure if its' my ears or not, but things sound crisper and the high-end seems to have less smearing and more detail?
I seem to remember Angel telling me that the only difference between the two to his ears was this crispness...but then I might have dreamt that too...
At this rate, I'm going to be tearing into my B67 to sort out switching it over to IEC sooner then later.
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Yup, there should be lower noise in the HF part of the program material than you could get with NAB eq. This would result in greater clarity and resolution. To take full advantage of this you will want to use modern low noise tape formulations.
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Thanks Doc for letting me know I wasn't dreaming it and the tip about modern tape formulations. I'm a bit of a tape elitist don't use anything but new tape...
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Thankfully we are finding that the new RMGI formulations are, if anything, better sounding than the originals - which were excellent to begin with.
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Even the RMGI LPR35 ( 3600' 10.5" reel) sounds great. I bought the thinner tape while I was fooling around with tensions and start/stop timing on my rs1500. I recorded a 1kHz tone and ran it through the mill(ff>stop>rewind>stop>ff>rewind...) to see if I could stretch it or otherwise damage it.
BTW heideana how do you like the B67?
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Hey Steve,
Do you have a Tentelometer? They are really nice for setting the tape tension. I found the alternate voltage measurement method of setting the tension described in the service manual fairly useless.
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Hey Steve -- I like the B67 an awful lot...its' kind of like my first "real" tape deck. It's a big, heavy beast that sometimes burps and breathes a bit of fire, but she's got great sound and handles tape very gently. It appears that if your careful and the ebay gods are smiling down on you that you can pick one up for a decent price that's in good shape.
I was looking at the IEC switches for the B67 and it appears you can set them to use IEC for 15ips and NAB for 7 1/2 ips....didn't I read somewhere that IEC is best for 15ips and NAB works better for 7 1/2 ips?
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Steve -- I forgot to mention that I've been using the LPB35, along with the 468 and they both sound great. Angel grumbled a bit when I had him set the bias for them on my two Studers...he said that 457 was better, at least on Studer's. Contextual, if there's any difference to me the 468 seems a bit more open and less smeared, while the 456 sounds a bit warmer to me....Hopkins
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Do I have a what? Just kidding. No, I just measured the voltage and fooled around a little then put it back where it was. The main thing I was doing was adjusting the stop bumper to the solenoid plunger on top behind the xformer. It sync's the brakes, lifters and roller lifts and even though my adjustment seemed to make "stop" more positive, I was worried that the brakes might be engaging early which could stretch the tape.
heideana, it sounds like you found a good tech in your neck of the woods. How about doing a post over on the Service forum. Mine just moved up to Oregon so I'm looking for a new one.
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Thanks Ironbut! I just posted it the info on Angel...I'll have to let him know to check his website!