Ar9Jim

"The best explanation for the good old days is a poor memory."

Thanks Bob. There are many hours of CNC machining in each chassis. Customers have remarked about how nice it looks it their home.. One customers 95 yr old mother said, "Oh my, that is beautiful!" "What is it?"

The latest RAM 285 is heading to a customer in WA.. The more people hear them, the more people want them. Perfect.

The RAM 285 is available. The ISO compliant quality management system is producing a product of the highest quality. We are very happy and proud of the new product. Truly world class at a lowest price possible.

The RAM 285s are shipping and very well received by the customers. Our Carver Amp Challenge with the 285 has a perfect track record. All wins - zero returns. The Carver Amplifier Challenge 2023-24 All Bob Carver products include our 30 day money back trial offer. Today, customers are faced with an overwhelming amount of conflicting information about virtually every topic imaginable. Audio topics are certainly no exception. Audio products must be heard making music, much as wine must be tasted or art must be viewed. Enjoy our product in your home, in your system, powering your loudspeakers for 30 days after it arrives. Compare Bob's design to other products costing many times our factory direct to customer pricing. Also compare Bob's design to lower cost products, that often focus on best measurements as the primary goal of their marketing departments, above the designers priority of focusing on highest fidelity. We guarantee you will enjoy and prefer the powerful, musical and accurate performance Bob Carver will deliver for your listening enjoyment. If we are not the best in your system, we will refund your purchase price with No re-stocking fees. Today, the showroom is in your system at home, making audio shopping more fun then ever. The Carver Amplifier Challenge. The customer wins, since 1985

A great group of people in that picture!!

More coming in the next few days.

Arrogance is a sign of ignorance.

" You can tell the character of a man by how he treats another who can do nothing for him."

Definition: Auditory science or hearing science is a field of research and education concerning the perception of sounds by humans, animals, or machines. It is a heavily interdisciplinary field at the crossroad between acoustics, neuroscience, and psychology.[1] It is often related to one or many of these other fields: psychophysics, psychoacoustics, audiology, physiology, otorhinolaryngology, speech science, automatic speech recognition, music psychology, linguistics, and psycholinguistics. In this video Nelson Pass talks about the ear brain interface. Bob Carver takes his science all the way to the brain as the great designers do. Will the greats self limit themselves and the real audio science to chase the erroneous priorities of a software designer with an analyzer (ASR) that claims SINAD further below audibility is "state of the art audio science"? Of course not. Recommending or discouraging purchases based on a simplistic erroneous definition of audio science is not of help to the customer. Criticizing the great designers and ranking their products as not state of the art audio science and not recommended, is as misleading to the customers as the companies selling products with no basis in science at all, IMHO.. Carver, Curl, Pass, King, Rowland have all been unfairly criticized on the same site by others that are not their equal. Most audiophiles are smart and realize that audio science doesn't end at the test bench load resistor and understand the complexity of real audio science as it is properly defined. Question anyone using science in their title, that when ask about the scientific control of their test samples says, "I just test what people send me." That is flawed science from the start and has no basis for recommending or discouraging peoples audio purchase. Like Steve and Herb mention in the video and Bob said to me, "this is someone trying to make a name for themselves by taking shots at others."

Our original plan was to start the new company with the RPM-V12 preamp. After getting about 60% complete during the pandemic, IC chip supplies became disrupted. With several months of development remaining and IC chips required that could stall the V12 for an undetermined amount of time, we decided to go forward with the RAM285. The RAM285 has no chips required and is now available. Now we will go back to work on the V12 as chip issue have subsided. More to come.

Bob Carver, John Curl and friends.

The Reference Amplifier Model RAM285. The pinnacle of Bob Carver designs, executed using 21st century manufacturing technology to define the state of the art musical performance in audiophile vacuum tube amplifiers. All the positives of vacuum tube audio without the vintage shortcomings. 1) Glorious audiophile quality vacuum tube sonics. 2) Tube life of decades. 3) Low tube temp with no burn risk to children or pets. 4) No issue with overheating your listening space. 5) High (over 100 db) SNR for the quietest background with sensitive speakers. 6) Doesn't limit your speakers choices to efficient models. 7) Runs Magnepan speaker loads with ease. 😎 Set it and forget it bias adjustment. 9) 5 year tube inclusive warranty. Rated Power - 85 WPC both channels driven 18Hz to 20Khz +-1 db Measured Power - 105 WPC both channels driven. 1Khz less than .5% THD+N Frequency response - 15Hz to 25Khz -3db at full power. Weight - 56Lbs. https://www.bobcarvercorp.com/shop

Here is another great American designer that advanced the state of the art by having the knowledge and wisdom to recognize state of the art in audio. Bascom H King.

The room is under construction but will be improving each day with more pictures, videos and all things about Bob Carver LLC. founded in Feb 2022. Tube amplifiers are the main focus as they are Bob's most recent products. Feel free to ask questions for Bob or myself. The only request is that you have fun! Enjoy!

The old school tube amps ran into this issue with the multi value can caps going away. The old guys started restuffing the factory cans with bundles of modern electrolytic caps inside the old can. Needing a single value could be easier to bundle inside the old can as shown in the link. Some blue shrink film and maybe it's a way out? https://www.antiquetvguy.com/WebPages/MyMethods/Electrolytic Can Restuffing/ElectrolyticCanRestuffing.html This company reproduces vintage caps.

The countertop shops water jet cutting granite and marble sure lends itself to a DIY open baffle speaker design, right? Value added process.

I had a conversation with Bob about John Curl. Bob spoke highly of John as a designer. Here is the 1st in a series of Youtube video's. I salute these men in these times, for truly advancing the state of the art in audio and having the wisdom to recognize the science and to know the difference. These men have about 200 years of study between them. These men are the state of the art in audio science and their work speaks well for itself.

Looks like 85 watts is serving you well power wise. How do you like the sound quality at less than hearing damage levels?😁

Hello, Here is the C1 manual. It covers the hook up pretty well and explains the processor loop for the accessories. https://thecarversite.com/manuals/mandir/Carver C-1 owner manual.pdf

Welcome Sir!

Likely an accelerometer available for measuring the results. Could be fun. Common sensors for vibration testing in aerospace. Used on machines known as "shaker tables" that induce vibrations at test frequencies while measuring electronics performance.https://clarktesting.com/service/vibration-testing/?gclid=EAIaIQobChMI_Orv0bGHgwMV5CvUAR3MEgtqEAEYASABEgJNVPD_BwE

Found similar marble and granite in 1 inch thick at a countertop shops. They have pieces left over from sink cut-outs etc. and will cut to your size. The mass seems to isolate well. Could get fancy with 1 inch thick layers of marble with rubber sheet between the layers.

Vacuum tube technology turns 120 yrs old in 2024. Common shortcomings of the past: 1) Issue: Tubes run scalding hot and present a burn risk to pets or children. Solution: Bob Carver designs run tubes relatively cool, only being quite warm but not scalding hot. 2) Issue: Tubes need to be replaced every 1-3 years at high replacement cost to the owner. Solution: The cool running Bob Carver design has a history of over 10 years. On the rare occasion that service is required, tubes as old as 10 years still test within new specifications. Bob calculates they should last past 40 yrs. 3) Issue: Tube amplifiers roll off at low frequencies in general, giving them the old school reputation for great mids and highs, but less performance at bass frequencies compared to solid state. Solution: This is correct in most cases, although tube amps have an ability to increase voltage in response to increases in loudspeaker impedance, often found at bass frequencies. This ability contributes to making tube amps sound more powerful than their power rating would suggest in comparison to solid state, although below 50 Hz or so, tube amps tend to roll-off.. Notice tube amp specs from (all?) tube amp companies compared to solid state specs. I'll use 75 watts in this example like the error with the Crimson 275 quantifiers that caused issues before my time here. This is where the difference in quantifying matters. Typical boiler plate solid state spec.. (75 watts 20Hz to 20Khz, 8 ohms, .001 THD+N).. Compared to typical tube amp spec.. (75watts 1Kz, .5% THD+N).. It's a huge difference that salesmen can make a mess of.. If salesmen use the solid state quantifiers on a tube amp, a measuring site with make a big deal out of it. The Black Magic 275 meets the tube amp specs used today, while being essentially the same as the Crimson 275 with some updates. Tube amp companies spec power and THD at 1Khz for this reason. Into a standard resistive load at low frequencies, the power generally rolls off in this type of 8 ohm drain test. The RAM 285 is different. The RAM 285 spec is at full rated power 20 Hz to 20Khz. It's a beast of a tube amp. It will make full rated power exceeding the audio bandwidth from below 18Hz to beyond 20Khz w/n only +- 1 db. (not 3db). The spec is not written in error by sales like the earlier 275, this is all engineering. Actually the 285 will meet it's specs past 100 WPC so we have a comfortable margin built in. The RAM 285 has textured resolution in the low end, as deep as your speakers will go. 4) Issue: Tube amps need efficient speakers and limit your choices. Solution: The RAM 285 is a simultaneously high voltage, high current, heavy weight design. We factory listening test the RAM285s using Magnepan speakers in order to provide enough load to make the RAM285 exercise. 5) Issue: Tube amps with efficient speakers tend to have more background noise: Solution: Technology. The RAM 285 uses the latest manufacturing engineering technology to solve higher noise often associated with vintage designs. Computer aided design, prototyping and simulation technology, common in aerospace, have enabled the very best performance possible from the genius circuit design of Bob Carver. The RAM 285 SNR exceeds 100. Customers report lower background noise than their solid state amplifiers. That's the RAM 285. Best of tube amplifiers without the shortcomings. A true legacy level product from Bob Carver, a brilliant physicist who has spent a lifetime improving our enjoyment at a price more could afford.