I am selling one of my HAND MADE and POINT TO POINT WIRED (no circuit boards) RH6L6 powered with 12AT7 driver SINGLE ENDED stereo tube amplilfier built on a copper plated steel chassis. The sound from one of these amps is truly HI END. Here is the latest testimonials from a buyer of another 6l6 SE RH amp.
"..did the quickest setup for me. am listening to youtube videos on roku. optical out from TV to teradak NOS dac to audionote one pre-amp to your amp. old audioquest emerald interconnects. clear day speaker wires (thin guage solid wire (silver, I think) to 1970's klipsch heritage speakers ( I have had for more than 10 years, don't think they have ever been opened) the sound is amazing! the amp and speakers disappear. getting the same feeling I had when first listened to audionote meishu. I know my audio memory is fleeting but difficult to say what difference there is between these tubes and 300B. have heard push pull el 34 amps before but this is way different, and way better. acoustic piano and bass sound exceptional" Just in time for the holidays this single ended stereo amp will make all you recordings sound fresh with its rare quality to bring emotional impact to the music.
This particular amplifier features rare and expensive Norelco output transformers made in Switzerland! These are the same transformers that are used in famous classic Revox reel to reel tape recorders. And complementing these rare output transformers they are mounted on a vintage copper plated chassis! The amplifier operates in CLASS A PENTODE MODE which performs like an expensive single ended triode but uses inexpensive tubes. Included with this meticulously assembled point to point wired amplifier are all vintage USA and EUROPEAN VALVES. The PRICE INCLUDES;
2 USA 1950s 6L6 metal tubes that test like new, 1 rare 6087 rectifier, 1 RCA 5Y3, 5 various 12AT7 types. The 12at7s are 1 ECC81 Amperex Bugle Boy, 2 GE triple mica 6201 and 12at7wa, 1 5965, 1 Sylvania black plate. All together 100.00 in tubes when purchased seperately. If you are familiar with tube amplifiers you know that custom made amps cost in the thousands, not hundreds of dollars. This amp comes with all tubes, as mentioned in the previous paragraph. It has all new capacitors , resistors, wiring, sockets, input and output jacks and paint job. The only parts that have been reused and recycled (to save you money, but not quality!) is the power transformer and chokes and the chassis. The amp has modern convenience and safety features such as on/off switch, 2 amp fuse, IEC power input socket for aftermarket power cords. Power on indicator light, and gold plated 5 way speaker binding posts and rca input jacks. So, essentially, the amp has been totally rebuilt with all new parts and is very much a new amp.
A short word about sound quality from a single ended amp. If I would have to give one word it would be INVOLVING. It has the ability to draw you into the music. Voices and instruments are suspended out from the speakers and seem to be playing a personal concert just for you. It is this ability that all high end amplifiers aspire to. What sets Single ended tube amps, whether they use very expensive triodes like a 300B or 845 or even a 2A3, or if they use classic pentodes like 6V6, EL84, 6L6, 6550, KT88, EL34, etc. is the uncanny ability to achieve a very realistic sound presentation. Voices, instruments, sound effects, have an uncanny you are there quality that can evoke a genuine emotional response to the music. This aspect of home audio is usually available only in big bucks audiophile systems. This amp has the ability to do this at a fraction of the price of the name brands. Please read on for more details about how this is accomplished. The all important tube circuit is a design that was developed by Alex Kitic of the famed RH amp. I have just sold another similarly designed RH84 except this model is made with better sounding film capacitors in the main power supply. Indeed, I have built 10 RH type amps and have sold 7 of them to very happy listeners. In fact one buyer has bought 2 RH84 amps from me. In this iteration, the all important power supply, CLCLC ( capacitor, inductor, capacitor, inductor, capacitor) uses expensive Solen film capacitors ( they are 3 black tubes on the underside of the chassis pics). The 2 inductors are vintage units made in the USA by Stancor and Chicago Transformer. Why use old school inductors? Simply because they are reliable, dependable and sound better. After all it is just a big spool of wire around a stack of steel plates.
A big plus for using film capacitors in the power supply is that they last a lifetime. No electrolytics in the power supply makes the amp faster and more dynamic. And besides this, all the brand new components in the amp are hardwired, point to point, and still breaking in. Check the pics of the underside showing the meticulous, time consuming point to point wiring, and the high quality capacitors and resistors.
The power tubes are operating in class A with cathode bias for about 7 watts of superior CLASS A SOUND. The power tube's cathode bias is achieved with a 200 ohm aluminum encased wirewound resistor bypassed with an excellent sounding Sprague PIO cap + audio quality Nichicon electrolytic capacitor. This little amp has amazing sound quality equal to or better than other SE amps such as Decware at less than half the price! Operating in Single Ended Pentode Class A with ultra short signal path for minimal alteration of the sound. And the sound quality is still developing as it has about 20 hours of total playing time. The circuit design is by Alex Kittic and has been copied by thousands of DIY'ers all over the world. The unique aspect of this design is the use of "local feedback" vs. "global negative feedback" that is used in almost all other audio amplifiers. The use of local fb bypasses many of the ills of "global negative feedback" which requires compensation networks to reduce phase problems. This and an excellent sounding tube combination makes for an superb sounding single ended amplifer. This is the eighth RH amp that I have built and they all sound excellent, but truthfully, the all film cap power supply makes this amp a notch above the rest. If you have not heard a Single Ended tube amp you are in for a treat. The only issue is the need for some efficient speakers like JBL or Altec Lansing, or Klipsch. This amp performs well with my JBL L112 speakers which are 91db efficient.
The amp is super quiet with no extraneous sounds emanating from the speakers which makes it an excellent partner for horn type speakers. You have not heard audiophile sound until you have heard a single ended tube amp. These amps have the ability to transport you into the music. Your recordings will sound like they never have, with heretofore, unheard of elements coming to the fore. The kick drum is thumping in your gut, cymbals have that metallic bite and reverberation and the vocalist sounds like she is standing in your room for a personal concert! In other words each element in the sound track has its own space. Truly, audiophile quality amplification at a beer budget price.
Don't let its small size fool you as the saying goes, great things come in small packages Thank you, for reading the complete text and visiting my sale. Please remember that this amp is sold strictly as is. Caution is required as tubes are hot and there is no bottom cover to the amplifier. Just remember if you are into headbanging, window rattling, neighbors phoning the police, loudness, this amp is definitely not your cup of tea. But if you are looking for a great sounding little amp for your den or bedroom this will make a Bose sound like pocket transistor radio in comparison and probably cost less and have a better resale value. Although this amp is built to extremely high standards and with the utmost of care it is sold strictly as is. Thank you very much for reading my ad.
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