russ69

Same thing happened to mine. It's just one tube gone bad and it causes the amp to thump on shutdown. In my case the amp still sounded fine but Mike said the output would have been 1db down but I didn't notice.

Call Mike but it's a bad power tube.

Well, it's not a glowing review by Art Dudley. No mention of what equipment he used for the review. I can't say I agree, he says the treble was raspy and tiresome. I find the Heresy to be very neutral in my system so I'm not sure what he is hearing. I'll agree that the tweeter is perhaps the weak link, lacking air and extension (my words) but I can't say I hear the same things he is hearing. Anyway, life goes on...

If you like it loud, pony up and get a real amp. If you want to play, you have to pay.

Be sure to put the needle firmly into the groove. With your set-up that would be 2 grams minimum.

Ouch. The Flame Linear will work in a pinch but it might be a little harsh. Not that it stopped me in the seventies from doing my best to blow up the speakers I hooked it to.

I'm a Maggie fan. I like the sound of big panel speakers. I'm just waiting to finish painting the living room before I order a pair of 3.7s. Anyway, check with Magnepan, I think they can still repair the MG-1s. The only problem areas are delamination of the wires bonded to the mylar. This will cause a buzz. And yes bring plenty of power. A good rule of thumb is that if you don't mind moving your amp around, the amp is too small for Maggies.

JW summed it up. You'll be keeping your tube amps for a long time, so you may as well get really good ones. I run a small Jolida with RF-25s. It's a very good set-up but a pair of Quicksilver mini-monos are a whole lot better.

There is more than one way to achieve your design goals. In the Klipsch Heritage line, efficiency rules, so everything is made to accomplish that goal. High power amps were not so common back in the day. But don't be misled, there are some perfectly fine low efficiency products out there, I own some myself. You just need to bring a couple of kilowatts and everything is fine...

"...a hi-rez file of a new recording can't match the bloody realism of a ...LP...and a pair of...Klipschorns."

Moray is right but it is very rare to have bass tracks in just one channel, the Beatles did it but they did it just because they could, nobody thought it was a good idea in retrospect.

When you said trim pots, I thought you were talking about the front panel level controls. My bad.

Trim pots are always a suspect in these cases. Give it a good shot of tuner spray.

I totally agree. PWK was a great engineer, he solved the problems that existed in his time. The Klipschorn is arguably the greatest solution to "in home" high efficiency low frequency performance devised (a folded corner horn). My reference to backwave was the 3db additional efficiency gained by that design. Everything is a trade off. Using the back wave of a 32 foot long wavelength makes the enclosure size important. If you absorb the backwave (pseudo infinite baffle) then container size is less relevant.

You did not show it hooked up. After you hook it up, turn the volume down to the 1/4 position and unplug the sub and let it reset.

I don't want to say PWK didn't get that right but it's in reference to a back wave supported woofer. My 11 inch square Velodyne sub has no problem going down to about 28 Hz. And yes, the wavelengths cannot be scaled.

You are pushing one of the basic rules. If you want big sound, you'll need some big loudspeakers and the power to drive them. That room is a big space, it will take a pretty good system to fill it. If it was me, I'd get a pair of LaScalas, two 18 inch subs and about a kilowatt of power. You could stack another pair of LaScalas for a little more impact. Of course there are 100 different combinations that will do the same thing but the little Quintets are not going to fill this space. You have a Ferrari room and you have a Briggs and Stratton in the engine bay. It's time to step up and pay.

Actually class a is the elegant solution. The other topologies were designed to increase efficiency but it will cause other issues with switching distortion. Class a is the pure mode.

For me in my system. fans are too loud. I can easily hear a fan.

Vertically on the slant riser base.

It's never a good idea to play musical instruments though a hi-fi loudspeaker. I'm sure it's done all the time but it puts the loudspeaker in a duty cycle it's not designed for.

I'm not a speaker designer but you can rest assured that the cabinet and driver are optimized for best performance.

A Leslie with a Klipsch driver....

That's the old joke about putting speakers in a VW. The hard part is parking them in the corners of your room.

My GTO had a fuse you could pull, it just killed the daytime lights and was labeled as such if I remember correctly.