Well you could always try a 3inch fullrange driver and a 18 inch O.B.? That's unique and kind of special ? Just a thought? Maybe I can help you kick start your next project? Looking to build something for my daughter? That's my starting project now. Jeff
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I have used not just tube amp but also SS amp and the sound is just as good. Actually, my low power tube amp is in truth, not that good and I actually prefer the sound with my SS amp. I have tried the JLH Class A amp, but I find my TGM7 amplifier is better - it is a high feedback symmetrical amp, 50V rails. It's very clean, no capacitors in the direct signal path so the AN15 can not find anything to complain about 😎
I don't know any 3" full range with sufficient sensitivity for a tube amp. Maybe I should give up on the tube amp, but it would be a pity. A driver that I am considering is really a mid-range, it's 5" and has high sensitivity, the PRV Audio 5MR450-NDY 5" recommended by XRK971. It runs up to 15kHz which is high enough for my ears but needs a good woofer to support it.
I have both 15 inch and 10 inch.
15 inch is indeed very special.
Best driver I have heard for the price.
15 inch is indeed very special.
Best driver I have heard for the price.
You also can use some hybrid desing. Is better than most people think. I have success in making variations of Power Follower, other Ciufolli designs (Push Pull, including the "Circlotron"), and some Patrick Turner hybrids, like one with feedback from output to tube screen grid; very good sounding amp with 2H dominant and at non-intrusive levels (not high like SE designs). For less power I also made some Ge designs, with ГТ806Б.
And no shame here, sometimes SS or tubes+SS win 🙂 .
Or use PP designs. I have a PL509 design, with great results.
More freedom to chossing speakers 😎 .
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I also fancied making that Patrick Turner hybrid, I have a Type 47 tetrode for the purpose. Anyhow, the thing is, I have a nice JJ 2A3, with Sowter OPT and other bits all waiting for me to build a 2A3 dc-coupled amplifier. I've been holding on to the parts for a few years and would like to build it as a purist amp. That means low power.
You have built a lot of interesting amps !
You have built a lot of interesting amps !
I can imagine excellent results both for 2A3 + HiEff speakers and the tempting DHP (the 47) + original LatMOS (Lateral MOSFETs) concept!
A remark for multi-way users: this Pat Turner "screen-grid" method results in high damping factor so is good for speakers with difficult crossovers. I've measured almost 110 in damping factor re. 8R (aka ri=~0R073). Good for a relative low feedback concept.
A remark for multi-way users: this Pat Turner "screen-grid" method results in high damping factor so is good for speakers with difficult crossovers. I've measured almost 110 in damping factor re. 8R (aka ri=~0R073). Good for a relative low feedback concept.
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Sorry for not being more specific. I was also referring to the whizzer version.
I haven't heard any of the classic versions.
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Do you need as many internal struts and stiffeners? David Dix says that so much is not required. In its design there is only one partition in the center of the box.
I also made the speakers based on Audio Nirvana Classic 15 + Fountek NEO CD2.0. But I have not listened to them yet. It is necessary to make sound absorption inside and connect the wires.
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very interesting vitaly81 - I am very interested in your opinions on this driver. In particular, how is the treble performance, dispersion, without the Ribbon Tweeter ?
Hi,
That transformers covers are real woog?
I have interest, do you can inform the brand or a limk?
Thanks