Leaderboard
Popular Content
Showing content with the highest reputation on 12/05/2013 in all areas
-
1 point
-
Also related to storing records, I thought I would also include this information for cleaning records I got off the interent. Re: DIY Record Cleaning Solution and Brush? I've posted this here several items in the past, those posts can be found in the archives. But here goes again ...There are several excellent cleaning solutions to be found on the aftermarket and they should be considered for extremely valuable discs or extremely grimey discs. However, for everyday cleaning I use a simple homebrew formula that can be put together for a few dollars.I begin with store bought distilled water - only distilled water not drinking, spring or any other sort of water that would include added impurites. Distilled water can be purchased for about $0.80 a gallon. Start here and listen after a few discs have been cleaned, you can certainly buy higher purity water and reclean your distilled water discs if need be but you reach a point of diminishing returns rather quickly IMO and unless you are at the MF level of components I doubt you'll notice any problems with distilled water, it has been the standby for decades. To one cup of distilled water I add two drops of All "Free - Clear" laundry detergent (no fragrances, no phosphates, no coloring agents). The detergent acts only as a surfactant which serves to break the water's surface tension. This allows the the water to flow smoothly into the record groove - you'll see how to notice the correct amount of surfactant a bit later - but actually the detergent does no cleaning itself so do not get into the thought process that if a little bit is good, then a lot more is better. You simply need to break the surface tension of the water. That's all you need to do. The cleaning action is done by the water, which also holds the removed dirt is supension unitl it can be vaccumed away and, if necessary, the action of a soft cleaning brush or cloth. The resulting combination of one cup water and two drops of detergent should result in very little sudsing when applied to the disc surface. If you get more than a few suds, you've added too much detergent and you'll have more trouble rinsing this solution from the bottom of the groove. Remember, the surfactant is there only to allow the surface tension of the water to be relaxed. Once again there are high end surfactants available at higher cost but let your ears be your guide as to how much you hear vs. how much you pay. That is my basic cleaning solution. If I have very dirty records that this solution will not clean to my satisfaction - typically used LP's with finger smudges or mould - I'll add no more than 1 ounce of alchohol to my then 7 ounces of distilled water, IMO the less alchohol you can get away with the better you are. Here I will spring for the more costly and slightly more pure Everclear over the cheaper isopropyl from the drugstore. A bottle of Everclear should run less than $20 and clean hundreds of LP's. I then warm this solution in the microwave to get it quite warm to the touch, not steaming but quite warm. The solution is placed in a spray bottle and another spray bottle is filled with just distilled water to be used as a rinse.I lay out two thick bath towels folded into pads large enough to support the LP. Placing side one of the disc face up on the first towel, I liberally spray the warm cleaning solution over its surface keeping as much as possible off the label area. This isn't just a thin line of solution you swipe around the disc but a thorough bathing of the groove in cleaning solution. When the mixture is right you'll see the solution flows into the groove and covers the surface of the disc rather than puddling up as you'll find happens with the water only rinse. I have two main cleaning brushes/towels. For everday cleaning I use a microfiber towel that has been dampened with distilled water, this serves me well on basically new or already clean discs. A few strokes in the direction of the groove and then back in the opposite direction and then side one is flipped over and the process is repeated on the second side. The next level of cleaning comes from a VPI brush* which is reserved for the most difficult to clean discs. If you use a brush, make certain you rinse it in a separate container after each disc side so you don't transfer crud form one disc to the next. If you're using the microfiber towel, just constantly turn the towel as you clean and eventually run the towel under some tap water to rinse it and then re-wet the towel with distilled water before wringing it out and cleaning the next disc. At this point the disc is ready to be run on the vacuum machine. You'll find your own method for the machine but I did place a few felt pads on the top corners of my machine to protect the disc should it slip out of my hands while I'm working with the machine. I do a bi-directional rotation of the disc on my cleaning machine ending with the machine being shut off and the disc being slowly rotated to an end point and lifted up as the machine's vacuum dissipates to zero. The LP is now ready to go back into a clean sleeve. If you'd care to be a bit more thorough in your cleaning, now is the time for a rinse before the disc goes back into a sleeve. Place the LP on your second bath towel and spray with the clear distilled water, thoroughly wetting the surface as you did with the cleaner. Take a second dampened microfiber towel and give a light brush to spread the rinse water - without a surfactant to break the water tension you'll notice the rinse water tends to puddle up. Flip the disc to rinse the other side and then transfer to the vacuum machine for drying. After a few LP's you'll need to turn the towels to find a fresh surface and, if you're cleaning dozens of LP's in one night, you'll probably want a few extra towels on hand to transfer out when the originals get soaked and dirty. The same goes for the microfiber towels you use for cleaning. Mix only enough solution to stay warm while you work and keep the mixture warm if need be by returning it to the microwave. IMO it's the warmth of the solution that does the most good here over and above the basic solution itself. There are steam cleaners on the market for LP cleaning and you might want to experiment with this method but you'll have to be careful not to lift the label with that method. I think you'll find the warm water cleaner to be satisfactory in almost all cases. For those of you who remember the original Keith Monks machine the solution used there was a simple combination of distilled water and isopropyl alchohol. The mixture was, I believe, 70/30. I have numerous discs that were cleaned with this machine that are still in excellent shape today. I do, however, have a few recent audiophile pressings that were left with a very slight whitish haze when cleaned with an alchohol mix as described above. You decide, if you can obtain good results without the alchohol, the alchohol is for the most part used as a drying agent and not much more. With the quality of the current crop of vacuum machines I don't feel alchohol has a real place in your cleaning regimen. Many manufacturers of cleaning solutions have a trial size you can purchase. It's well worth your time to experiment but I think you'll find good results without spending too many dollars. * A substitute for the VPI brush is a soft, 4" nylon bristle paint brush from the hardware store. Some people cut these down to shorten and stiffen the bristles ever so slightly. IMO the VPI brush is well worth the money, lasts almost forever for the average user and does a superior job to any other brush I've tried which include quite a few. And remember, if your cartridge is not built with a bonded stylus, to use a good stylus cleaner after a night's worth of listening.1 point
-
Not sure if this helps, but here's what a guy from the 'Stereophile' magazine had to say about them back in '99 when they first came out: But... There is one fly in the ointment. The TZ-F700 is not as tightly buttoned-up as it should be. On a significant number of recordings with challenging bass, I heard disconcerting buzzes and rattles from the region of the IRIS in both of our first two samples. Most of the time this was masked by other sounds in the program material, which is why it did not often interfere with the listening tests or compromise my generally favorable sonic impressions. This is also why it was far less obvious on soundtracks, which often tend to be busier than music. But once I heard it, I looked around for the sort of material that clearly revealed it, such as isolated drum strokes or continuous bass synthesizer tones. The problem never appeared to be in the subwoofer; it seemed to originate most often from near the recessed 6.5" midrange, though it once appeared to come from the back of one of the IRIS units. The problem ranged from a subtle buzz to an outright rattle. With one piece of material, the "Large Drums" cut from Staccato 2, a sampler CD (produced by the German Audio magazine, CD 101013), the buzz emanated from a different area entirely: the region around the plate holding the power cord and power switch. A hint of buzzing also came from one of the speakers' rear ports. We requested and received a third TZ-F700 from Pioneer, but it exhibited the same problems. My initial analysis, at least with respect to the noise heard behind the IRIS, suggests the possibility of misrouted cables vibrating against the midrange cone. But it was impossible to remove the grille covering the midrange to investigate. (The grille frame appears to be made of thin plastic, which might be related to the problem.) Conclusion Based on sonic performance alone, I have no hesitation recommending the Pioneer Elite Reference speakers. But despite my many favorable comments, I can't overlook the extraneous buzzing noises, which I heard often enough to make me recommend caution. I can't imagine that this is a design flaw; the problem would certainly have been apparent to any competent designer during prototyping. That leaves only cosmetic trim—which an acoustic designer might not have been involved with—or quality control as possible culprits. I'm sure Pioneer will get to the bottom of this. If the problem is solved by the time you audition the system, you should be able to tell from any reasonably thorough listening test. Still, I can't make an unqualified recommendation of the system at this time. But the basic sound quality is already there.1 point