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Goma

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    Goma

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  1. Good news on both counts. I have considerable soldering experience. As a part time job while studying, I had to do around 1000 connections a day to make computer boards. But my eyes aren't what they used to be. I have just now committed to a Nagaoka PM-500. Should have it within a week and will follow up with a report. Mark
  2. Thanks Chris. Looks like the oil damper from Kabusa will fit. A bit hesitant about fitting the liner though. Is that difficult? Cheers Mark
  3. Very interesting discussion as I just bought a Technics SL-1500c and wondering what I can do to elevate its performance. Are the tonearm mods applicable to this model? Initially, I'll just be upgrading the cart from the Ortofon 2M Red but always looking for a tweak or two extra.
  4. JBL K110 x2 and 2120 10" drivers - AlNiCo magnets. High power handling, AlNiCO magnets. All three cones are original. These are legendary musical instrument drivers that have a huge range of applications for hifi. Great dynamics and clarity can be used full range as an instrument speaker or a great mid-range for a hifi build. Could also be a 2-way with a sub. The 2120 is the same as K110, just renamed by JBL. Two drivers working and one needing small repair. 2120: great original condition K110 (1): original cone with a small repair. Works well. K110 (2): original cone. The connection between the voice coil and braid has detached. Speaker Hospital say it's an easy fix to reconnect -just a new dust cap required.
  5. Rotel RB971 PreAmp and RSP980AX Surround Sound Processor (with remote for RSP980). These are a versatile combo for stereo sound control. The pre-amp has been fitted with a pair of Burr-Brown OPA627. These op amps were BB's top of the line devices and cost more than the total asking price of this ad. A Brown Dog adaptor is used. The upgraded op amps substantially add more detail and clarity to the sound signal. A bit of aging on the top covers can be seen.
  6. JBL K130 15" AlNiCo Drivers - pair Extended range drivers 103dB efficient! And rated at 125 W provides effortless sound at any volume. Remarkable clarity and dynamics. Fabulous for vocal reproduction female and male. "The K130 is JBL's most rugged and efficient extended range musical instrument loudspeaker. Its 125 watt continuous sine wave power handling capability qualifies it as the ideal reproducer for lead and rhythm instruments. The 15.inch cone area provides considerably more output than smaller cones without the slightest sacrifice in midrange and high frequency reproduction. K130 - the only choice when loudspeaker size is not restricted and tremendous musical sound levels are required." These speakers have paper dust caps to sweeten the higher frequencies. Can easily revert to aluminium. Have been used as a two way with a bullet tweeter in pro applications and can be combined with lots of horns.
  7. JBL 2123H 10" mid-range drivers as used in several JBL's studio monitors such as the 4345 etc. Great original condition, no issues whatsoever. Serial numbers close together and matching impedance. They sound great! Super clear and clean, extended response to 6kHz.
  8. TMC THE MUSIC CABLE 1m Teflon plug solid copper interconnect - 1m. http://www.the-music-cable.com/ Solid copper wiring. Locking RCAs Very good sounding cable, especially at the price. As they are solid copper wires, they are quite stiff but maintain their shape.
  9. The are very nicely made made by Krispy Audio using all Furutech components and cable. RCAs are rhodium plate and locking type. Very clear and fast sound.
  10. These Russian Teflon caps are fantastic value for money. They can compete with the likes of V-Caps which would cost 10 x more! If you have the room they are great. From Enjoy the Music... Russian FT3 Teflon Capacitor I must first thank an Audio Circle member Gary ("GBB") for loaning me the FT3 and K72 caps. Otherwise, I would have had to buy on eBay and wait a month for delivery. The FT3 is a great cap sonically, but its sheer size and weight can present a challenge in cramped spaces. Its lack of traditional leadouts also forces one to make his own; I had to solder some leftover leads as seen in the photo above. This cap is exceedingly smooth, smooth, yet resolved like only Teflon caps are. This evenness and lack of glare, grain, or bite can be disadvantageous for FT3, especially in quick cap-rolling A-B comparisons, where a cap with a more insistent personality will attract more attention and spotlight. However, after living with this cap for a long time, one has to marvel at its consistently musically-revealing nature and tonality. It doesn't wear its detail resolution on its sleeve, yet when one chooses to listen for it, the extension in both directions are impressive as well as actual detail. Its trick is having equal resolution from top-to-bottom, so the whole is well, wholesome. It conveys music in a flowing, suave tonality and is the crooner of the cap crowd... Are You a Contender? So, are these Russian Teflon caps as "good" as the V Caps, Sonicap Teflons? Well, I know some say no, but I don't know how to answer that. In direct comparisons, VCap Teflon does come across as having the highest highs and the most linear response across the range. It paints the sonic scape with the finer brush, and its sonic signature reminds me of my beloved Sylvania 5751 triple mica black plate tubes for you tube people. On the other hand, the FT3 and especially K72 have a more forward, bolder midrange presentation, albeit with a bit less refinement and a bit bolder lower midrange/upper bass range. I enjoy listening to deep male vocals a bit more through the Russian caps while VCaps absolutely rule with high-pitched female vocals and instruments that live in the same range and above, resolving them with the finest of the surgical scalpel yet without any harshness. I really don't feel all these caps should be given concrete rankings, like number 1, 2, 3, etc. Let's just say music can sound glorious with most good caps mentioned in this article, often coming down to tweaking tubes, interconnects, power cords, etc.
  11. Rotel RB971 PreAmp and RSP980AX Surround Sound Processor (with remote for RSP980). These are a versatile combo for stereo sound control. The pre-amp has been fitted with a pair of Burr-Brown OPA627. These op amps were BB's top of the line devices and cost more than the total asking price of this ad. A Brown Dog adaptor is used. The upgraded op amps substantially add more detail and clarity to the sound signal. A bit of aging on the top covers can be seen.
  12. This is a no nonsense device. Just does its job of selecting input and attenuation. Stepped volume selection with individual resistors. Works well.
  13. These are the premium of the Russian cold war larger value capacitors. Great sound at a fraction of current price of equivalent caps. Construction is a hybrid of Paper and Mylar in Oil with Foil. NB. The 10uF K75-10B has the more advanced oil dielectric and hence the B designation. Excerpts from http://www.enjoythemusic.com/diy/0411/capacitor2.htm Russian K75-10 Hybrid Paper and Polyethylene Terephthalate In Oil Capacitor http://www.enjoythemusic.com/diy/0411/9_K75.jpgThis Russian military capacitor is quite intriguing in its reported construction and in appearance that resembles a small grenade. Its dielectric is claimed to be a hybrid of paper and polyethylene terephthalate, which is essentially a type of Mylar, saturated in oil. There is some debate as to which Russian “oil” capacitor is the best, and while K40Y is widely recognized and used, some report K75-10 is the premium oil capacitor out of the Russian military. I can report that K75-10 sounds extremely unique, quite different from K40Y PIO and any other true PIO one cares to mention, including Vitamin Q, Jensen, and AmpOhm. It has a very saturated, colorful, textured, and detailed midrange that is thick and juicy. While PIO’s are known for their natural and smooth midrange, K75 seems to add some jest, pop, and color to the proceedings, yielding an apparently more detailed and forceful presentation. Treble and bass is pretty good, especially for an oil cap, but the leading edges are not razor-sharp and precise like premium film caps. Since the midrange is so involving and palpable, the lack of equal force in treble makes it seem a bit dark overall, but as one increases the volume, this becomes less of an issue, and poorly-recorded music is much more tolerable at higher volume. The sound is rather addicting in its presentation and can even be called delicious in what it does well, kind of reminiscent of biting into a ripe peach. The line dividing “colorful” and “colored” is thin, and while K75-10 likely leans a bit to the latter, I quite enjoy its substantial sound and prefer it to the thin, plasticky sound many other capacitors represent. Bypassing With VCap Teflons After being charmed by the K75-10 capacitor, I did try replacing them with several others but ended up missing what K75-10 does best, i.e. rich, colorful, center-of-earth midrange, with gobs of texture, which some may interpret as extra grain. Putting the K75-10 back in, I then missed the finely-delineated upper frequencies with smooth extension other caps are blessed with. In the past, whenever I was faced with this type of situation, bypassing often saved the day, so I tried bypassing K75-10 with VCap Teflons. With many caps, bypassing with Teflons often sound terribly disjointed and incoherent, but K75-10 sang beautifully with VCap Teflons. This combination retained all the warmth, richness, and texture of K75-10 but imbued the upper and lower frequencies with extra clarity and definition that was sorely needed. As often is the case when high frequency harmonics are improved, the bass frequencies subjectively tightened up as well. This pair is so attractive-sounding that I believe the combo belongs in the league of the best of the breed. Of course, there is no guarantee this combo will work as well in one's particular gear/system, but if you find Teflons too "clinical" and oilers not neutral enough, one can certainly do a lot worse.
  14. Going with high output MC I bought this just a couple of weeks ago but have decided to go the high output route that will be consistent with my current MM phono stage. (apologies to the previous owner for using his ad.) This device is very highly regarded internationally and uses Lundahl of Sweden superb step-up transformer designed specifically for modern low output moving coil cartridges and optimised for use into moving magnet phono stage inputs. The price is what I paid and is about a 1/3 of RRP. It features very wide bandwidth, low distortion and carefully designed primary and secondary loading networks to optimise the performance and give beautifully reproduced transients, free from ringing. The core materials and winding techniques employed in the manufacture are unsurpassed and feature multiple primary and secondary windings configured to cancel hum pickup from external sources as well as minimise inter-winding capacitance and maximise bandwidth. The step-up ratio makes it compatible with a wide range of cartridges and our proprietary loading networks maintain a 100 ohm input impedance, also compatible with a wide range of cartridges. Specification can be found at the following link: mc step-up transformer (rothwellaudioproducts.co.uk) turns ratio - 1:20 voltage gain - 26dB (x20) core material - cobalt based uncut amorphous strip input impedance* - 100 ohms optimum load impedance** - 47k + 150pF bandwidth - 8Hz - 75kHz (+0/-3dB) cartridge compatibility (o/p) - 0.2mV - 0.7mV cartridge compatibility (imp.) - internal impedance <20 ohms dimensions - 60 x 155 x 92 mm
  15. I bought this just a week ago but have decided to go the high output route that will be consistent with my current MM phono stage. (apologies to the previous owner for using his ad.) This device is very highly regarded internationally and uses Lundahl of Sweden superb step-up transformer designed specifically for modern low output moving coil cartridges and optimised for use into moving magnet phono stage inputs. The price is what I paid and is about a 1/3 of RRP. It features very wide bandwidth, low distortion and carefully designed primary and secondary loading networks to optimise the performance and give beautifully reproduced transients, free from ringing. The core materials and winding techniques employed in the manufacture are unsurpassed and feature multiple primary and secondary windings configured to cancel hum pickup from external sources as well as minimise inter-winding capacitance and maximise bandwidth. The step-up ratio makes it compatible with a wide range of cartridges and our proprietary loading networks maintain a 100 ohm input impedance, also compatible with a wide range of cartridges. Specification can be found at the following link: mc step-up transformer (rothwellaudioproducts.co.uk) turns ratio - 1:20 voltage gain - 26dB (x20) core material - cobalt based uncut amorphous strip input impedance* - 100 ohms optimum load impedance** - 47k + 150pF bandwidth - 8Hz - 75kHz (+0/-3dB) cartridge compatibility (o/p) - 0.2mV - 0.7mV cartridge compatibility (imp.) - internal impedance <20 ohms dimensions - 60 x 155 x 92 mm weight - 580g
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