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Re: BIC turntables?

PostPosted: 21 Sep 2017 03:45
by schleif
Doug, time to pick your brain again. So I got my technics sl-1300 with the 681EEE (the MA didnt work as the seller stated, the left channel was mute, the right worked well, not sure what that is, cartridge or stylus, but I have plenty alternates). My Nikko 9090 (circa 1978)has 2 phono inputs, but my Sony STR d1090 (Circa 1988)is a more updated than the Nikko and more powerful. I was trying to connect both turntables to the Sony and the only thing I could come up with was I had this radio shack audio source switch that has 3 aux inputs (not sure why I had it) so I connected the bic to 1 and the technics to 3 and left 2 blank. Then connected both tt's the ground wire to the back of the Sony on the same ground source as there was only one. They showed this on my Nikko owners manual connecting the 2 tt grounds to the same ground source so I figured it was ok. Everything works fine so far. The only albums that had the same songs on both were a Steely Dan greatest hits and Aja album (which was red translucent vinyl) so I try to cue up josie then peg simultaneously and was clicking between 1 and 3 on the switcher to see if I could hear an appreciable difference. I just happened to have my AT 7000 on the 80z. Both sounded great, but different. The 80z was louder at the same volume and was also had less lows, where the 681 was not quite as loud but seemed to produce more lows, vocals were good on both. I dont know the history of this 681 as it came with the Technics, but is that a characteristic of the 681. I listened on both my speakers and my Sony mdrv6 studio monitor headphones. No hum, sound clear as if the tt's were plugged directly into the Receiver. Can this do any damage to anything? Can it be drawing too much power from using the switcher? Only one TT can play at a time, and I am assuming since when you switch from source 1 to 3, the only one is "live" at a time. What do you think of this whole set up and sound? I ordered a 2nd headshell for the technics on amazon and am going to attach my acutex 410e and see how that compares, I didnt like the 2nd ADC headshell that came with technics, looked like someone soldiered the wiring. BTW I tested the extra MA QDC1 on the BIC and still the left channel dead.
Norm

Re: BIC turntables?

PostPosted: 21 Sep 2017 22:04
by Doug G.
I actually did the same thing a few years ago with a Radio Shack (I am one who mourns their passing) switch too. You are lucky to have no hum as I battled that when I tried it. You won't hurt a thing and the differences you hear are normal between different cartridges.

The cartridges/switch don't draw any current from the amp. The cartridge produces the AC voltage representing the sound and drives the preamp inputs. The switch is a passive device (meaning it doesn't do anything to the signal, just switches it in and out of circuit.

So enjoy your setup. On the input side of a system, you can almost do anything without damaging anything. Don't plug the leads into a wall outlet, however. :D

Doug

Re: BIC turntables?

PostPosted: 22 Sep 2017 02:51
by schleif
Doug,
Have you replaced the stylus on your 681, if so did you find an OEM or one of those on Ebay. I emailed a guy selling them and he says they are just as good as the original. Is the primary quality and sound of the cartridge/stylus a factor of the cartridge or the stylus. Obviously it is a bit of both, but I have never investigated which carries more weight in the pair. I understand the different diamond tip styles, cartridges moving magnet, moving coil, electret, cd4 among the several. What do you think?

Re: BIC turntables?

PostPosted: 22 Sep 2017 05:24
by Doug G.
I bought one of the last genuine styli for my 681EEE quite a few years ago from Stereo Needles. I got the cartridge on a turntable I bought and the seller didn't secure the tonearm and the stylus was destroyed (the one before the one I bought, that is).

Almost any stylus seller you encounter is going to say his stylus is just as good as an original but it's rarely true. I don't know of a source for an original anymore and I'm sure they are very difficult to find. Maybe JICO? They seem to have a good reputation.

Maybe do a search for that cartridge in different forums too and see what others say. Most of the discussions have centered around replacement styli for it.

Put in "681EEE stylus replacement" in google too.

Yes, the sound of a cartridge is derived from both the stylus and internal circuitry of the cartridge. The tracking is pretty much determined by the stylus alone.

Doug

Re: BIC turntables?

PostPosted: 23 Sep 2017 13:38
by schleif
I decided to break out my acutex 410E LPM for my sl-1300. OMG, what an immediate difference. The most crisp sound I have heard yet. I immediately switched my tonearm on my 80z back to the acutex 312 lpm, it was right up there, but not quite as good as a brand spanking nos stylus.

Re: BIC turntables?

PostPosted: 29 Sep 2017 16:07
by schleif
Doug,
So, I have been listening to my sl-1300 with my acutex 410e and my bic 80z with may acutex 312 lpm. I recently got a few albums on ebay and flee market. So I am going a little crazy. When I first got my 410e I thought it sounded great, very sharp, crisp as compared to the used 610eee which sounded a little flatter, but smooth. My old 312 sounded closer to the 410 but the 410 seemed to be missing some base. When I compared the same songs simultaneously using my switcher (steely dan and michael sembello maniac a heavy base beat) both sounded pretty good, but I feel like it just isnt quite there, unless it is me. I replaced my rca with monster audio cables just for the hell of it. Maybe a bit on the treble side unless I hit the base boost button on the receiver. I would equate it to listening to a jazz record that normally isnt a heavy base sound. I like to listen loud and I am set up in an 8x10 room. When I switch to my min advent speakers the sound is good but a little thin since the woofers are small, back to my radian research 12-3 12 in woofers definitely sound better/fuller but, and as compared to my studio monitor head phones very similar, but still not quite there as i feel there should be more base. I have read that you need to "break a new stylus in to get that fuller rich sound. Maybe it is just that my speakers are 37 years old. I did all the protractor adjustments, technics over hang guage, set my tracking force at 1.5 as the manufacture suggest, and bias at about 1.5 too. Just dont have a test record any more to check all of those adjustments. I do notice in all of this, records from my old collection albeit over 30 years old, play and sound better than any record I have purchased recently on line or flee market, regardless of the records condition (none new). I thought came to my head, is it possible, that records played years ago on my acutex 312/320 and micro a 2002e simply got used to those diamonds and the used ones that I have recently purchased used on a completely different stylus their whole lives and may account for the difference in sound? Or maybe I am being too critical. My wife says everything sounds fine, lol. I am not even sure what I am questioning at this point, but something is bugging me.
Norm

Re: BIC turntables?

PostPosted: 01 Oct 2017 06:13
by schleif
Hmmm, Just got a couple of new used records but in great condition and everything sounds fine. Could be my mind playing tricks on me, maybe I am just over analyzing.

Re: BIC turntables?

PostPosted: 01 Oct 2017 18:23
by Doug G.
I think you're just experiencing the usual variations in equipment and our human perceptions from day to day, Norm.

:D

Doug

Re: BIC turntables?

PostPosted: 24 Jan 2018 00:50
by Pageplayer
Anybody have a set of hinges that fit a 981

Re: BIC turntables?

PostPosted: 04 Mar 2018 05:27
by schleif
If they are the same as the 40z,60z and 80z, I believe I do

Re: BIC turntables?

PostPosted: 08 Mar 2018 02:17
by Pageplayer
I'm not sure myself.
I know there's a set on ebay but they're rusty and too expensive.

Re: BIC turntables?

PostPosted: 08 Mar 2018 03:43
by Doug G.
I believe there were only two different bases that used hinges. The original 900 series tables don't have hinges. The dustcover just fits into slots in the base.

The VIA and Z series tables have hinges and they are the same. The hinges fit into slots in the base and the dustcover is kind of clamped into the upper part of the hinge by the spring when it is slid into it. The later vinyl covered bases for the original series tables also have hinges. I am not sure they are the same as the hinges on the VIA and Z series tables but it seems reasonable that they are.

Doug

Re: BIC turntables?

PostPosted: 08 Mar 2018 19:49
by schleif
If you can send me a pic, I can compare to mine or you can call south street
1- 631-765- 6470. They bought all of BIC's parts and are the ultimate BIC repair service in the country.

Re: BIC turntables?

PostPosted: 09 Mar 2018 02:50
by Pageplayer
I just jumped on ebay and somehow missed these..
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F142599351698

But a bit too expensive