The pure joy of experiencing the electric guitar in this way is enhanced by an unusual range of clean and distorted sounds. Manual adjustment of the tube bias and realtime measurement of the tube current on the screen. Can anyone compare the new genelex px300b tube to either svetlana 300bs, western electric 300bs, sophia 300b mesh plates,newer kr300b tubes or electro harmonix 300bs. The jj electronic 300b seems to have all the things i love about 300b tubes. Whats so irresistible about a singleended triode set amp. This diy 300b triode amplifier project was completed by stamou tasos who is from greece. The hissing sound your amp makes normally wont drown out the sound of your playing. Sep 29, 2018 they have 845, 300b, 802, 211, 2a3, 274b and 212 tubes. What follows is a report on the resurrgence of the 300b through reissues being produced by several manufacturers.
Of course, i would add my aikido singleended output stage mojo, wherein the 300bs cathode gets an extra shunting capacitor that. Diy 300b singleendedtriode set hifi amplifier project. If you use poor monitoring to listen, the sound will be poor. Waversa wvpower mk2 mono power amplifier 300b dealer ad. In this article, howard stone first leads us through a nostalgic history of the western electric type 300b audio amplifier triode tube. Before we go into the details, i want to emphasize that every 300b tested had the typical 300b sound character. Totally independent power supplies for the driver valve and the power valve. One day when listening to them the conversation moved to how amazingly good our little quickie directly heated triode preamp sounded, and the quest began for a great dht that would fit our other requirements. Best value 300b amplifier great deals on 300b amplifier. Discover over 659 of our best selection of 300b amplifier on with topselling 300b amplifier brands. If this is the case, it might be time for new tubes.
I am one of those nuts who love the unique sound quality of 300b over any other tubes. Discussion in audio hardware started by steve hoffman, sep 18, 2018. Building your own tube amplifier became a popular hobby and tubes were widely available after world war ii. This high power, high voltage triode delivers 612 watts of pure classa power. All point to point wired, with built in mm tube phono stage.
The amplifiers power rating wattage can impact the noise floor level. Hi, selling the western electric 300b tubes pair they were bought nos and have estimated around 400650 hours on them. They have 845, 300b, 802, 211, 2a3, 274b and 212 tubes. So my panel did an audition by rolling 300b tubes used in a wellknown brandname 300b pp monoblocks handcrafted in calfornia marked on the front panel. Siegmund sound king combo 300b tube guitar amplifier. The sound of an output tube is a function of the circuit in which it is employed, the tube which drives it, whether rectification is solid state or tube and if tube, the tube used, the design of the output transformer and the metal from which the transformer is wound. Associated equipment includes cambridge audio 840c cd player wdexa clock and nonstandard output ic, ef86based home made line stage, home made dual mono 300b set amps based on jack ellianos drd design, mapleshade interconnects and. While acme 300b has much more wider and deeper sound field performance, it is more admirable than its opponent. The takatsuki tubes require a rather significant breakin period. Visually stunning early balloon glass shape and fully compatible with all classic 300b tubes, this kr300b is the first choice when the. Beautiful sounding 300b amplifiermade by fluxionupgraded unit with mundorf caps and furetech inputsshuguang black 300b tubes includedget the sound of single ended triode power fora great price.
Im by now convinced that the 6sn7 is an inferior driver tube for the 300b. This very simple triode wired for class a operation has an amplification factor of 3,8 with a 300 volt supply current and 60 ma bias current. The 300bs have improved the sound even more even at only 100 hrs. Both the wvpre and wvpower 300b monoblocks utilize fully balanced internal circuitry and therefore balanced interconnects are recommended. I recently installed a matched pair of the psvane we 300b tubes in my chalice audio grail monoblock set amps.
Bench test cayin a100t 8 x kt88 tube amplifier youtube. Amplifiers free delivery possible on eligible purchases. Lux corporation, founded in 1925, has changed its company name to elux corporation with a new management organization to meet the changing world of our information society. So even the most modest 300b should bring you some of that magic. This sounds frightening for some and makes others eyes sparkle. From my experience the svetlanas sound a lot like the western electric 300b reissues. Showing the pete millet 8903b software in use as well as other tests. Visually stunning early balloon glass shape and fully compatible with all classic 300b tubes, this kr300b is the first choice when the quality of your sound matters.
Sep 18, 2018 joint effort between audio note uk and psvane, amazing new 211 and 300b tubes, almost ready for sale. The 300b tube, meanwhile, was invented and manufactured by. Unfollow 300b tube amplifier to stop getting updates on your ebay feed. While the 300b gives a better lower frequency extension and twice the power, the 2a3 is, to me, a more musical tube. What obviously complicated matters here is that, say, the kr enterprise tubes and the more powerful valve art 6300b did sound better when used with an amplifier. They claim to have new patents in vacuum tube audio which have been used in these series like composite metal mesh screen pole structure for big power tubes and they are stable and very good sounding. Outstanding features rugged stainless steel chassis high quality ei transformers and components switching between direct and line input switching between high and. The sound king combo is a super responsive and lively guitar tube amplifier with the natural presence and musical resonance of an acoustic instrument. Can anyone compare the new genelex px300b tube to either svetlana 300b s, western electric 300b s, sophia 300b mesh plates,newer kr300b tubes or electro harmonix 300b s. And whenever we show acme 845, in addition to praise, always make the audience wonder. Put more succinctly, the tube supplies were so sizable that even today tubes from that period and earlier from the rarer 1930s are available as socalled new old stock. The mastersound compact 300b is a single ended triode integrated amplifier capable of 15 watts or more with the proper tubes that will drive your efficient 89db and up speakers easily, and give you that famous and very desirable s.
If you are looking for warmth and weight go look elsewhere, an el34 pp for example. One of the most popular tubes for singleended audio use is the 300b. Apparently there is interests in choosing the best sounding 300bs though nobody ever touch this issue. Maybe mine were from a period where they had quality control issues.
Can anyone explain the difference in sound signature between 300b 2a3 kt88 el34 tubes. Obviously, the recordings give an impression of the sound, as far as any of these type of recordings can do justice to the real sound. It is a parallel single ended, class a amp with zero feedback and. Designed by douk audio studio, it is a powerful and affordable hifi headphone amp featuring an anodized aluminum chassis and top mounted vacuum tube with blue illumination. Each tube ships with our peerless 5year limited warranty.
These singledriver designs produce a beautiful midrange. They are laurel iix from ron welborne, with tube rectification mullard gz37 and a 6sl7 driver valve. All things being equal which they never are, a 2a3 amp with my high gain preamp takes away the 300b s edge in power. Well maintained and kept in a smoke free environment.
When paired together, their true potential becomes apparent. Instead of some geeks idea of going through all the manufacturers claimed measurements and stuff i decided to do all this just like any normal dettedude would. These specifications at the time of introduction by western electric were good for 6 watts of glorious output power. I would use either the aikido cascade circuit based on a single 6sn7 or an aikido gain stage that used a 12ax7 input tube and a 12au7 output tube.
We came up with some really nice sounding preamps based on the 6as76080, the 7233 and the 6ew7. Quad 300b triode amplifier brooks 12a driver design using vintage utc transformers duration. Thats why i use it over a 300b though twl has given me an interest in the 45. A third party dc filament supply for the 300b valve. Mq300 vacuum tube amplifiers products luxman seeking. Dont miss the opportunity to grab the savings and upgrade your sound. This is our diy tube amplifier with famous western electric 300b triodes and siemens c3g pentodes here strapped in triode mode.
All things being equal which they never are, a 2a3 amp with my high gain preamp takes away the 300bs edge in power. Sound quality differences were by no means irrelevant, but were smaller in my experience than those between the best and the worst 6sn7 or ecc8312ax7 that i have heard. Buy products related to 300b tube amplifier products and see what customers say about 300b tube amplifier products on free delivery possible on eligible purchases. As6i 300b tube integrated amplifier charisma audio. But someone who was influential 70 years ago said that 300b is the tube and the.
You will not lose anything in terms of sound by going for the latest and newest tii series if tseries are phased out and will gain all the greatly improved workmanship mentioned above. Here are some additional impressions from a new 300b z owner, with more to follow as the tubes continue to burn in. I ran this solely as a power amplifier in my system. The pure sound l300 distinctive appearance, dimensions 210mm tall and fully 500mm deep. The avvts have a more forwardupfront sound, not a good match with this amp. Mastersound compact 300b integrated amplifier with emission. Premium tungsol 6sn7gtb reissued quality, matched input driver tube.
Now lets shift gears and give my sophia electric 9101 300b monos a listen, and briefly compare them to the sophia electric 9103 300b integrated amplifier, and see what going from a sophia electric level 01 300b amplifier to a level 03 300b amplifier means performancewise for the music lover. This tube was very easy to listen to, and very involving and mysterious. Notably, there are no capacitors in the signal path. The kr300b is a direct plugnplay western electrictype 300b alternative. Associated equipment includes cambridge audio 840c cd player wdexa clock and nonstandard output ic, ef86based home made line stage, home made dual mono 300b set amps based on jack ellianos drd design, mapleshade interconnects and speaker wire. Buy nobsound 300b 6n8p integrated vacuum tube amplifier hifi stereo class a singleended audio amp. I linsten to 50% rock, 25% pop, 25% classic or whatever sound good. The 300b amplifier tube is known worldwide as the queen of tubes because. Discussion in audio hardware started by stereoguy, may 30, 2014. This is not a 300b on steroids like the 24watt 300bxls of the same czech make.
Out of the box this amplifier played typical music angel sound. Joint effort between audio note uk and psvane, amazing new 211 and 300b tubes, almost ready for sale. The we 300b are said to have a life of 30,00040,000 hours on them, but of course they are tubes and nobody knows. Given you already have a d3a about the best driver tube for a 300b amp i can. Joint effort between audio note uk and psvane, amazing new. About 2 months prior i installed 2 matched pairs of the we 845s and were very happy with their contribution to the improvent in my systems sound. But the vaic 300b mesh plates i used did not last very long and a few had loose glass floating around inside. It utilizes the russian 6c45 valve to drive the 300b tube. Please note that from now on, this 300b tii model will be by default shipped without the factory gift box.
Bg bench testing a chinese made cayin a100t kt88 amplifier. Learn more about replacing tubes in our tube amp faq. Psvane acme series new flagship series whats best audio. Shop the top 25 most popular 300b amplifier at the best prices. Officially introduced in march of this year, kr audios 300b balloon tube is intended as a direct. The kegons employ only nine parts in the audio circuit path.
The mq300, a vacuum tube stereo power amplifier from luxman, uses thoroughly selected parts and circuits to maximise the performance and tonal quality of the latest direct heated triode the ta300b following in the design footsteps of the masterpiece mb300 released 31 years ago. What follows is a report on the resurrgence of the 300b through. Tube sound or valve sound is the characteristic sound associated with a vacuum tube amplifier valve amplifier in british english, a vacuum tubebased audio amplifier. Ive owned this amplifier approximately 6 years and the unit has had one previous owner aside from myself. Aug 24, 2010 this is our diy tube amplifier with famous western electric 300b triodes and siemens c3g pentodes here strapped in triode mode. Construction is described as an exact copy of the original we. Ron audio 300b balloon matched pair kr 300b balloon high power triode. Ns01e is the smallest vacuum tube headphone amplifier in the world. But the driver tube is wrongly chosen too the very high amplification factor plus small.
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