MVC Posted January 11, 2019 Share Posted January 11, 2019 8 hours ago, Marvel said: It depends partly on the size of your room. My room is 12x28, a 7 ft ceiling that rises to 10ft and down again, an open arch, small alcove at one end and a fire place and chimney wall in the center, and lots of windows, so I know not ideal, and roughly 3000cft. Although the arch I think actually helps, it cuts down on reflections and offers an escape. I had to really work on getting resonants down with placement and room treatments, I am planning to build my own absorbers and diffusers to experiment some more in that area (I even built 6" risers for the LS, they came out really nice and solid, but didn't improve the sound at all). I would agree with your watts suggestion, obviously LS are very efficient, I don't need a huge amount of bass and I listen to a volume equivalent of a live performance. Quote Link to comment Share on other sites More sharing options...
Marvel Posted January 12, 2019 Share Posted January 12, 2019 If you are into diy, check out this site with info and plans for acoustic treatments. Freely downloadable... http://arqen.com/ That's a nice size room which must really present some challenges. About using tube equipment. It douesn't have to be expensive but there is a real range between inexpensive an cheap/low quality. Bruce Quote Link to comment Share on other sites More sharing options...
M1911A1 Posted January 12, 2019 Share Posted January 12, 2019 Currently I have all vacuum tube (pre)amps. However, the Nelson Pass ACA Class A mosfet amps have me interested. I would never own a Class D amp. I am not interested in avoiding the generation of heat, or reducing power consumption. All of my tube based equipment pales in comparison to the current drawn from the oven in the kitchen. 1 Quote Link to comment Share on other sites More sharing options...
MVC Posted January 13, 2019 Share Posted January 13, 2019 On 1/11/2019 at 8:33 PM, Marvel said: If you are into diy, check out this site with info and plans for acoustic treatments. Freely downloadable... Thanks. Absorbers appear easy to build and these type of diffusers, I think, would be most doable diy (mountain range type with planks) as compared to wood cubes of various sizes, which look amazing. I read an article of someone who build these using 1/4 plywood but then recommended to use 1/2 since the 1/4 would warp, then it gets heavier too. Quote Link to comment Share on other sites More sharing options...
Marvel Posted January 13, 2019 Share Posted January 13, 2019 14 minutes ago, MVC said: ...as compared to wood cubes of various sizes, which look amazing. I have a qrd calculator to design those but they will weigh a lot. Found a place that sells large pieces ol quality balsa but that also gets expensive. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted January 13, 2019 Share Posted January 13, 2019 On 1/9/2019 at 3:00 PM, Ossidian said: The answer is whether solid state or tube sounds best to "your" ears in your room with your gear. What's better vanilla or chocolate? I guess it depends on taste. I use tubes on my AMT, midrange and solid state on my auggies (woofers). What you are doing is exactly what Saul Marantz himself told me when I met him (when I was still a kid). Way to go. 1 Quote Link to comment Share on other sites More sharing options...
Ossidian Posted January 14, 2019 Share Posted January 14, 2019 11 hours ago, ClaudeJ1 said: What you are doing is exactly what Saul Marantz himself told me when I met him (when I was still a kid). Way to go. What I would have given to have met Saul Marantz. What a legend Saul is. I still have my 10B tube tuner. 1 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted January 14, 2019 Share Posted January 14, 2019 On 1/13/2019 at 9:46 PM, Ossidian said: What I would have given to have met Saul Marantz. What a legend Saul is. I still have my 10B tube tuner. It was at a Rogers Stereo show at Cobo hall in Detroit 1976 or so. I also met Gene Czerwinski of Czerwin Vega fame, he had the most powerful sound at the show. He even had a subwoofer plugged directly into an AC outlet, which scared a few people, including me. Irving Fried of Fried Loudspeakers, Bob Moers, then Klipsch President (at their dealer, where he showed me photos of the MCM Prototype), Mr. Snell of Snell loudspeakers, and a host of other "characters" at that time. Historical time, luck, circumstance, and perseverance were all at play. Although I did make a special trip to Hope in 1985 for a plant tour by Woody Jackson. After a brief meeting, PWK himself spent the entire day from 10-7 with my wife and I. THAT was the greatest audio day of my life!!! 2 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted January 14, 2019 Share Posted January 14, 2019 On 1/12/2019 at 6:32 AM, M1911A1 said: Currently I have all vacuum tube (pre)amps. However, the Nelson Pass ACA Class A mosfet amps have me interested. I would never own a Class D amp. I am not interested in avoiding the generation of heat, or reducing power consumption. All of my tube based equipment pales in comparison to the current drawn from the oven in the kitchen. Never say never. Your statement is an emotional one, not a technical one. Interesting you would say that about Class D..............the reason that I'm now using Hypex (the very best for the money) and others is that it's the only amplifier that had the delicate and micro detailed sound Quality of my First Watt Aleph J Class A, did not masquerade as a space heater, and had 13 db more output than the Amazing Pass Design (400 watts/4ohms vs. only 25). To each their own I guess. My best friend and fellow audiophile has an Audio Research Class D amp that costs $10,000 for a pair of monoblocs. I can't hear the difference between them and my Hypexes for 1/8th the price. Also, the very best all horn setup I ever heard were the Sadurni Horns at Axpona, Chicago, about 4 years ago. Norah Jones literally brought tears to my eyes on that system, and they were using Hypex amps.............all class D. Quote Link to comment Share on other sites More sharing options...
M1911A1 Posted January 14, 2019 Share Posted January 14, 2019 Never say never. Your statement is an emotional one, not a technical one. Not really. All the advantages of a class D amp are more efficiency and less heat generated. Those are not features I am interested in. Also nothing about Class D is inherently better at music reproduction. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted January 15, 2019 Share Posted January 15, 2019 On 1/14/2019 at 4:55 PM, M1911A1 said: Not really. All the advantages of a class D amp are more efficiency and less heat generated. Those are not features I am interested in. Also nothing about Class D is inherently better at music reproduction. My data and ears, as well of many audio friends say you are mistaken. The features you speak of are a bonus, and not a requirement for home use. Bruno Putzey's who spent over 10 years in R&D at Philips developing this technology before he started Hypex, says it best: The NC400 amplifier module is an extremely high-quality audio power amplifier module which operates in class D. Not only does it offer a way for audiophile music reproduction to continue in an ever more energy-conscious world, its measured and sonic performance actually raises the bar for audio amplifiers of any description. Operation is based on a non-hysteresis 5th order self-oscillating control loop taking feedback only at the speaker output........"Neither dirt nor fairy dust." Basically, I"m hearing things in my best recordings I never knew were there before. Micro nuances with explosive dynamics. But hey, it's all in your personal belief system anyway. But like PWK used to say about Packard Automobile ads, borrowed for his Khorns: "Ask the man who owns one." And in my case, owned them all. At least an example of each type anyhow, and if not owned I have heard them all over the years. 2 Quote Link to comment Share on other sites More sharing options...
Mark51 Posted January 23, 2019 Share Posted January 23, 2019 This is a very general statement but the best sounding guitar amps are tubes. There's something very organic and dynamic about the sound and I hear the same thing with tube based stereo. 1 Quote Link to comment Share on other sites More sharing options...
JGT914 Posted January 24, 2019 Share Posted January 24, 2019 Can't tell you the years exactly, but around 1967-68 was when I started seeing the rich kids in garage bands gigging with the new Fender sold state gear that was an early disaster. It had a steep raked face. It took Fender years to recover from the brand damage inflicted by the SS failures and tonal defects. Marshall's entry a few years later was much better executed. Vox, another competitor, also had some lamentable early results with solid state. Most working musicians kept a stash of 6L6GC's and 12AX7's handy. Quote Link to comment Share on other sites More sharing options...
Schu Posted January 25, 2019 Share Posted January 25, 2019 On 1/14/2019 at 5:09 PM, ClaudeJ1 said: My data and ears, as well of many audio friends say you are mistaken. The features you speak of are a bonus, and not a requirement for home use. I also agree, which IS why the solid state portion of my system is class D. Not only is clarity/sharpness a characteristic, transients are unmatched. Quote Link to comment Share on other sites More sharing options...
glens Posted January 25, 2019 Share Posted January 25, 2019 I've got to say that my current system has Hypex-origined power (UcD 180 boards) and I concur with what has been stated. The sound quality is as good or better than anything I've ever owned (next best would be late '70s HK "twin powered" gear). And that guitar amps are best tubed. Tubes are more graceful when over-driven and are especially rich in harmonic content which especially suits the unnatural coloration/production of sounds so prized by electric guitar players. 1 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted January 25, 2019 Share Posted January 25, 2019 4 hours ago, glens said: I've got to say that my current system has Hypex-origined power (UcD 180 boards) and I concur with what has been stated. The sound quality is as good or better than anything I've ever owned (next best would be late '70s HK "twin powered" gear). And that guitar amps are best tubed. Tubes are more graceful when over-driven and are especially rich in harmonic content which especially suits the unnatural coloration/production of sounds so prized by electric guitar players. Truer words were never spoken here. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted January 25, 2019 Share Posted January 25, 2019 On 1/14/2019 at 4:55 PM, M1911A1 said: Not really. All the advantages of a class D amp are more efficiency and less heat generated. Those are not features I am interested in. Also nothing about Class D is inherently better at music reproduction. To the first part YOU are not interested in that aspect is a personal bias, while others are interested in the additional bonus. As to your second comment: and to that I say............................Bovine Sediment, Balderdash, BS..................etc. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted January 25, 2019 Share Posted January 25, 2019 On 1/22/2019 at 7:53 PM, Mark51 said: This is a very general statement but the best sounding guitar amps are tubes. There's something very organic and dynamic about the sound and I hear the same thing with tube based stereo. On midrange and treble for Stereo, yes, especially single SET. On bass, SS rules. Hypex Class D SS replaces them both. Quote Link to comment Share on other sites More sharing options...
MyOwn Posted January 26, 2019 Share Posted January 26, 2019 I'm not an engineer by any means, but this old article made sense to me. https://www.soundonsound.com/techniques/what-class-d-amplification Quote Link to comment Share on other sites More sharing options...
Deang Posted January 26, 2019 Share Posted January 26, 2019 Yes. 1 Quote Link to comment Share on other sites More sharing options...
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