ramtubes
Responses from ramtubes
| Does anyone care to ask an amplifier designer a technical question? My door is open. Hey, look at this. I just went to Stereophile to look for the Cary and they are running this review of the amp I did for Counterpoint 32 years ago. This was going to be the RM-6. I almost merged Music Reference with them. Glad I didn't. Im still ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @toddcowles Wondering what your thoughts are on the most significant transition/design element that has improved overall sound quality in today’s amplifiers. WOW what a question. I cant think of just one. There are so many ampifier designs out th... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @csontos Hey Roger. What are your thoughts on designing a ss amp to drive ESLs directly? I'm currently listening to Acoustat Monitor 3 with direct drive servo charge OTL monos. It seems the ultimate comparison between ss and tubes would be a shoo... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @nitewulf Thoughts on the Stereophile measurements of this Luxman solid state amp?https://www.stereophile.com/content/luxman-l-509x-integrated-amplifier-measurements Looks like a very good amp. Luxman makes good stuff. Havent seen them mess up ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @goheelz Roger— thank you for sharing your expertise in this thread.I would like to know your opinion of ideal amplifier type (and your rationale) for the following loudspeakers: Vandersteen 5A/5A Carbon. As you know, this product is relative... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @ieales Unless one subscribes to the idea that cables do not alter the sound, surely it makes more sense to replace bad cables than a good amplifier to correct system deficiencies. If a system is not broken and has serious deficiencies cables wi... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @tomic601 5:38pmRM I have a dead pair of ESL-63, pretty low serial numbers...thoughts on rebuild upgrade steps at same time?Ashamed to admit I dont really have a budget in mind.... My friend here has a dead pair too. Are your panels bad? Panels a... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @devilscucumber Hi Roger,I have some old Martin Logan Sequel II's which when repanelled no longer sounded pleasant with my Plinius Integrated 9100 (100w), they became overly bright and shouty. I ended up bi-amping with a Perreaux 6000B (300w mos-... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @chubaka What are rails and what to they do?Good question. In a Solid state amp there are generally equal positive and negative supplies centered around ground. A 100 watt/8 ohm amp will typically have 50 Volts plus and minus supplies. We call ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @desktopguy Wish I could hear your more recent designs, because based on the RM-9s, they must be very very good. I like my new stuff, especially the RM-10. For those who have difficult loads, play loud and need power the RM-200 is designed precis... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @twoleftears But a popular US-based, US-manufactured, relatively inexpensive, tube integrated did hum, not a lot, from *both* the transformers and through the speakers, enough that when combined the hum could be heard from listening chair when m... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. RM - what starter book on basic electronics / circuit s would you recommend ? This one, price varies widely. Its a good text. I got one for $5.https://www.amazon.com/Analog-Electronics-Devices-Circuits-Techniques/dp/0314045538 | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @unreceivedogma Why would triode sound better than pentode? Why woukd my Altec Lansing 604Cs be better for my Julius Futterman OTL3s At 16 ohms rather than 8 ohms?And, with regard to the great interconnect debate: do you know of any testing d... | |
| Does impedance of a speaker change when one bi-amps? @rickytickytwo Yes for speakers with complex impedance dips and peaks there can be a significant change when you biamp. We dont care about the peaks, its the dips that bother the amplifier. Drivers themselves do not dip below their DC resistance.... | |
| Does impedance of a speaker change when one bi-amps? bDP24 says (this is true)Beside the advantage of a bi-amped speaker presenting an impedance of less variation to each of the two power amps than one amp sees from a non-bi-amped speaker@erik_squires saysSorry @BDP24 this is not really true as ... |