I'd avoid it first it's an SET amp but it's class AB that's just weird, also at an output of 16wpc they are pushing those two EL34 tubes pretty hard. Not good for tube life or amp life.
Has anyboyd used this amp, your thoughts on it
Looking to buy this amp maybe, it's available on eBay, china hifi, etc. I'm looking for something that is tubes, a headphone amp, and can play speakers all in one. I have found one review but the guy seemed like he didn't know what he was talking about. Love to hear your thoughts or other suggestions.
I've enjoyed a Glow One amplifier for several years in my second system and suggest that you give them a look. A bit more than the one in the link you posted, but they are hand built with end-to-end wiring and no PC boards and can be found on the secondary market. Here's the link: https://glow-audio.com/ Enjoy! |
The Glow One is a single-end tube amp using one 6BQ5/EL84 per channel at 3.5 watts output. Input/driver tube looks like a 12AT7. I have a similar custom-made amp like it using a 6BG6 pentode for about 7 watts and one 12AT7 driving both output tubes. Nothing new here. These simple circuits were used in table radio's in the 1950's. No feedback and at clipping 5% harmonic distortion. |
@jond : Since it has one output tube per channel it will of course stay entirely in Class A operation. Class AB requires a pair of tubes/transistors driven by a phase-splitter circuit. |
The glow one looks interesting is that enough power to drive any speakers they’re going to have to be awfully efficient speakers. I was hoping something more in the 6w to 7w range.
Thanks for all your input appreciate everything it seems like a hard thing to fulfill what I want to g to get a good headphone amp and something that will drive speakers all in one package.
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Not necessarily hard to accomplish. However it will require more expenditure to get a “good “ quality amplifier for your intended purposes. You’ll be hard pressed to get decent build quality, power supplies and output transformers at dirt cheap cost. Something has to give. Charles |
@jasonbourne71 True, those power levels are more suitable to headphones, but the significantly higher impedance of headphones might cause the audio quality to be compromised. |
@jasonbourne71 I was merely reading back what the description was on Ebay, a total hatchet job. |
Beware of those cheap tube amps. They often have a large and impressive box made to look like transformers, but inside that painted wood or plastic box is a "tiny" transformer. Many of those manufacturers even add weights inside so that the amp feels heavy and powerful. Many also use a tiny board for class D amplification and the tubes aren't even part of the audio circuit! There are videos on YouTube if you look. |
I appreciate everybody's input a lot of choices obviously I actually bought a it's a 708 B headphone/ preamp. What I'm looking for is now some help with E88CC tubes anybody here have any experience with these tubes I'm looking for some good sounding models RCA Mullard anybody have any experience with these? |
Read the sound description at Brent Jesse. My personal preference is all nos stuff. My favorite is Tekefunken, Tungsram, Seimens, Ei. American tubes are 6922, Phillips, Rca, etc. The various Russian tubes are nice too. Personally I dislike Mullard , but others love them. The bottom line is you’ll have to try some. Maybe I’ll see you at a Tube Addicts Anonymous Meeting, it’s a vicious disease. 😆 Happy hunting , Mike. |
@audiomike33 I looked at all the pictures on the link you sent and got a kick out of their picture of the speaker taps and their unique spelling of Right and Left--If you go for it hope their quality is better than their spelling! |
With your wish list, I suggest looking at the Willsenton R8 (the improved later version) or the Muzishare X7. Both are push-pull AB and will deliver 45WPC in ultralinear mode, enough to power average speakers and will have a headphone jack also. The $400 SET EL34 will not be able to do nearly as much for you. If you go with the Willsenton, you might want to upgrade the tubes to Psvane tubes, they are better. If I were buying now, I would get the Muzishare. I have the Willsenton R8, and it sounds wonderful, especially for the money, but I also did the DIY internal upgrades which adds costs but is exchanging the generic components for high-grade audio components and takes some time and basic soldering to do. (There is a upgrade mod series on YT at "Skunkie Does Electronics"’ channel which documents the process well. I found it worth the cost and trouble. The cost will be $1400 (AMZ) not $400, though, before tube upgrades. |
If you want something that is cheap, has tubes in it, and has headphone jack, plus plenty of other functions (including bluetooth, optical, coaxial, and phono inputs!), go for Dayton Audio HTA100 (not the "HTA100BT which is the older model) Granted, the tubes are in the preamp section, the power amp section is solid state class AB, but it's a very nice little amp with great build quality for the price and an incredible 5 years warranty! I bought one as a birthday present for a friend. There are quite a few reviews online. |
There is an old thread on this amp on Hi-Fi .org, like 38 pages, and there is a 16-page mod thread on it. The overall talk was really good so i bought it.
I will say it sounds mean with the Chinese tubes, but when i upgraded to Jan 5670w and 2- 6jd8 buggle boy tubes, wow it woke up and sounded beautiful. Now given its $250 price tag it's a steal IMO, it smokes my Little Dot Mark II. I'm going to do the mods inside soon. It drives my HD 6xx no problems and i can't go past 1 o'clock or it will blow my brains out. It also makes a fantastic pre-amp, wow it's really good. Anyway just a follow and thanks for all your help. |