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Greetings. Thanks for the add. My dad owned a burglar and fire alarm company from the 70s - early 90s. In addition to installing alarms in high end homes, he installed Hi Fi on the side. We always had a bitchin sound system in the house growing up. I remember him playing discs (not compact, but the size of vinyl) way back in the day. Then we had CDs way before most even knew what they were. Well he passed away a few years ago and I've come across some of the stuff... Like others, I inherited my dad's carver stack: C-2 preamp, M-1.5t amp and m-200t amp. They haven't been used in many years. I'm wanting to hook up a Pioneer record player to listen to vinyl in the house. First, some guidance on connecting everything up would be great. Can I use both the M-1.5t & the M-200t? Or is it one or the other, not both. If that's the case, which do you suggest? Next my volume control seems corroded. I've tried spraying CRC Electronic Cleaner and turning the knob, but it's ineffective - lots of cracking and R speaker comes and goes. Should I try something else? Is there a replacement? Thanks for the help.

If you have cleaned the volume pot and it still crackles or you have channel drop out you probably need to clean the balance pot. I am no expert, but I use fader lube on pots and contact cleaner on switches. Both caig deoxit.

You need to test TP 1 to TP 2 - NOT to ground… same with 3 & 4.

December 12 2023. UPDATE: After the closing of the company that owned license to Bob Carver's designs and products from 2019 to 2021, I asked Bob if he was willing to take one more swing at audio together, to combine our strengths and repair the damage to his legacy from the previous attempt. In Feb 2022 Bob Carver LLC was founded as the IP holder and BC Audio was founded as the manufacturer. A start-up while facing headwinds from a typhoon of negative feedback related to the Crimson 275 has been tough to say the least. Seeing the legacy of a brilliant man who has given his life to improving our listening experience, tarnished by the previous attempt was gut wrenching for me personally. I know Bob Carver the man vs the unfair insinuations and allegations being made about his intent and design of the Crimson 275. Bob is all about customer satisfaction as the main reason for doing this work. Bob offered refunds for 30 days at that time in 2022 and then extended it to 90 days. Bob also offered to change the chassis ground at no charge for those who wanted the change. We still offer that change at no charge if the customer sends it in. Bob profited nothing from the previous attempt but stood behind his name like the good man that he is. What I've learned about the Crimson 275's produced from 2019 to 2021, after having many come in for the updates: The grounding on the Crimson 275 is actually quiet safe. Similar to the audio components you own from the 1980s without safety grounded plugs (sometimes not even polarized) and metal chassis, or the millions of tube amplifiers made before the 3 prong plug was even invented. A full short potential was 6 volts at only mA of current Not even a tingle. Very few Crimson 275s had a polarity issue. Maybe one builder on one day. The vast majority had no issue, judging from the build dates on either side of the poor review specimen that have came in for ground changes. The transformers used are the exact parts Bob specified for the 275. The 15w Edcor are a Carver design from over a decade earlier. The 275 is a type of performance to weight ratio experiment. Building a great sounding 75w @ 1K tube amp weighing less than 20lbs for less than $3K, being serviced and Made in the USA was the target. The previous license owner did not change the Bob Carver designated parts. The Black Magic 275 uses the same parts with a few manufacturing updates.. Specs gone wrong As a dealer, I had no doubt about the power output of the Crimson 275 from experience. Customers had positive feedback comparing to others of 3 times the 275s power rating. If you notice, tube amplifier power ratings by most any company, you will generally find the power rating stated at 1Khz as standard practice, in comparison to solid state specs that generally state a 20Hz to 20Khz bandwidth quantifier in the spec.. The reasoning for this is the older tube amp designs being soft on bass. Still today, many tube amps tend to roll off in low frequencies, so they state power at 1Khz.. The Crimson 275 power spec should have been stated as 75w @ 1Khz like a tube amp, not 20Hz to 20Khz like a solid state. I suspect this was a salesman spec error but I was not involved and can't say for sure. The RAM 285 is one of few tube amps that can make it's full power to below 20Hz, so the power rating on the RAM 285 is not an error, but instead of 19lbs it weighs 56lbs. Bye for now.

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Literally what I was thinking. Had mine powder coated black and they look great.