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Hello all. I recently acquired some carver gear. An M500t amp and a TFM 35 amp. Looking for some direction on the M500. I understand it’s a dual voltage unit using low and high voltages on the rails. My issue is the relay doesn’t close upon power up. I’m leaning toward the op amp or something in that circuit. All the rectifiers check out good but I’m only getting around 30v on the low V side. Not the 40v it’s showing in the manual. The relay is good as I have supplied 24v to the coil to test it. I know these amps are different than most I’ve worked on but I’m ready to tackle this one. Thanks in advance for any input and I look forward to interacting with all of you. Cheers.

Hello all, My name is Douglas Thompson I am an ISCET certified electronics technician. I live in Tacoma Washington. I have been working on electronic gear for over three decades. I was teaching electronics theory at Clover Park technical College for over 4 years, and I was a field warranty technician for Carver for around 6 years. I still have and work on alot of these amplifiers every week. I am at the moment working on a pm1.5t that the entire fan assembly is missing, so I am trying gto find one to put in it.l

Hi, I am the owner of Infinity IRS Beta as well as other Infinity speakers. I am contemplating Genesis II

Hey all! Thanks for the warm welcome! I'm working on four (4) systems, 2 have three (3) TFM 55's sledge hammers for the bang and umph, one has a CT-29V and the other has a CT-28V for directing traffic. The third has three TFM-45 high head room bangers, it has a C-16 for directing traffic and the purpose is to well,,,, see how it performs against the other two,,,, blame Roland for that lol The later is umm,,,, well and please don't be upset, is a bit of a hodge-podge to be honest. Basically its an old Toshiba mini system that's in the process of getting two (2) TFM-35 framing hammers fitted to it to replace the tired amps that came with it

"This couple bought a rundown abandoned house for $1.5 million and plan to make it their forever home: Take a look inside...While cleaning out the home, they found some of the original furniture, old photos of what the house looked like before, and a record player that was hooked up to speakers all over the house. Volkov found that discovery pretty exciting. 'Imagine having a house back in the day and you could play music everywhere in it from a record player,' he says. 'The record player was still there when we bought the house, so that was really cool.'" https://apple.news/AjoyndHDJQOms8_wEhzSNXQ 😎 🔊

He! Spoken by a true Pilot…

Newbee here,,,,, looking forward to learn what all this site is about. Had a Carver system 25 years ago ,,,,, now putting several Carver systems together for my own enjoyment,,,,, hope I'm not to late LOL🤕

Just look on any Ivy League campus.

Chris Rea, Blue Street

Love this lady's drumming... she's a youtube sensation :). This cover of a classic song is pretty darn good. Love the vocals.

I checked all of the output transistors Q119-126 as well as Q118,119,109,110,116,117. All test good

Welcome! I found that Carver Silver 7t amps powered my Infinity Kappa 9's quite nicely. I've moved on from the Infinity speakers, but not the amps. Carver amps really like Polk and Infinity speakers.

Plinius SA-201 power amplifier, Infinity Kappa 9.2i speakers, Jamo Classic 10 speakers, DENON PMA-S10III integrated amplifier, Luxman M-300 Class A/AB power amplifier, a few Pioneer integrated amplifiers I started with, Wiim Pro Plus streamer and building up 😅

Foreigner Dirty White Boy

Hi DouglasT and welcome to thecarversite.com. We're glad you're hear. It's good to have another with your expertise here. I look forward to your contributions.

That drumming sounds really good.

Two pair

Chicago Underground Quartet, Good Days (album)

Yes Big Generator (Full Album 1987) https://youtu.be/aVFKarUsYx8?feature=shared

The Derek Trucks Band, Soul Serenade (album)

Slow smokey nightclub sound. And great baritone sax with him on this one.

Coco Montoya, Hard Truth (album)

Rod Stewart Maggie May

In our area, in addition to more ..., we've got a population explosion of squirrels this spring. Which, has brought in packs of coyotes. . Wish they would take out some of the rabbits. How do we know? The roadkill on one of the roads out of my area is littered with an unusually high amount of squirrel road kill. Circle of life, Darwin, and the predator food chain, engages with mother nature and the physics of fast moving automobiles.

Welcome @BigB, glad you found us! Keep us posted as you put your 500 back in service.

if the relays are not engaging, your amp is likely in protection. Something has gone wrong. Suggest you start with downloading the service manual. Check the output transistors for shorts. Also check for DC offset at the outputs (up stream from the relays). This may help narrow down why its going into protection.

Thunderclap Newman Something In The Air

With that TX-11, you will be able to pull in FM stations from miles, and I mean LOTS of miles, away. IF, that is, IF!, you get yourself an FM antenna. I have my internal home cable system connected to a big antenna in the attic, which pulls in FM from 200+ miles away. Probably get more reception, if I didn'thave 100ft of cabling, distribution boxes, etc, in the mix, but it works great for me.

Cage The Elephant Aberdeen

Blondie Heart Of Glass

And for all the cat lovers ….

I mowed the lawn today, and after doing so I sat down and had a cold beer. The day was really quite beautiful, and the drink facilitated some deep thinking on various topics. Finally, I thought about an age-old question: Is giving birth more painful than getting kicked in the nuts? Women always maintain that giving birth is way more painful than a guy getting kicked in the nuts. Well, after another beer, and some heavy deductive thinking, I have come up with the answer to that question. Getting kicked in the nuts is more painful than having a baby; and here is the reason for my conclusion. A year or so after giving birth, a woman will often say, "It might be nice to have another child." On the other hand, you never hear a guy say, "You know, I think I would like another kick in the nuts." I rest my case. Time for another beer.

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.