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TC RH750 part II

Got my RH750 today... with 2 RS210s and 1 RS212.

This amp is a monster! I love it! Still tweaking presets and EQ settings... I have a feeling I'll be at that for a while... but right out of the box I love the tone with my Sadowsky Will Lee. It's damned near perfect. I can't wait to gig with it in a couple of weeks.

When I tested the upper reaches of its power, my daughter complained about me shaking the house. :D

BUT, of course, as I expected from reading all the threads around here, the knobs are shite. 5 out of 8 of them are so loose they slide off the pot shafts with little to no resistance at all. Contacting support for a new set. Pretty ridiculous. Wondering if I should just put a little Krazy Glue on the shafts when I install the new ones, or if that wouldn't make a difference.
DON'T PUT KRAZY GLUE ON THE SHAFTS. If you every need any future service you'd be screwed. I'm a service guy and I can tell you that if you used any glue like that I would have to destroy all your pots to disassemble for service....not a good thing. If you need the security a little, repeat LITTLE, silicon could be used, but don't use anything even approaching permanent. The replacements will probably be snug enough without any adhesive at all.
 
DON'T PUT KRAZY GLUE ON THE SHAFTS. If you every need any future service you'd be screwed. I'm a service guy and I can tell you that if you used any glue like that I would have to destroy all your pots to disassemble for service....not a good thing. If you need the security a little, repeat LITTLE, silicon could be used, but don't use anything even approaching permanent. The replacements will probably be snug enough without any adhesive at all.

... until they break again. I just requested my fourth set from TC today. I guess they figure it's cheaper to just keep sending out the same old crap than it is to design a different knob. The set I'm replacing now was installed at their repair center when I sent the amp back to them for new knobs and buttons - the buttons had split in two. For now I'm using a little silicon to hold them on.
 
... until they break again. I just requested my fourth set from TC today. I guess they figure it's cheaper to just keep sending out the same old crap than it is to design a different knob. The set I'm replacing now was installed at their repair center when I sent the amp back to them for new knobs and buttons - the buttons had split in two. For now I'm using a little silicon to hold them on.

Ah yes....the old button split. That's why I got rid of the head. All three buttons split.Its really a shame. I dug the head.
 
I wonder why its only the 750 that has problems with the buttons and knobs. I've never heard of people complaining about it with the 450. And I've not heard any Blacksmith owners complain about it either. (Both my 450 and Blacksmith are fine, too.)

You'd think these knobs and buttons would be the same parts across the entire lineup to save on costs.
 
Got my RH750 and will be using it for the first time tonight at rehearsal in place of my RH450 which will now stay at home for practice and pickup gigs.

When I got it the first thing I did was give a tug on each knob and they all held firm. Guess I got a good one. :D

BTW, Is this a club with numbers?
 
Got my RH750 and will be using it for the first time tonight at rehearsal in place of my RH450 which will now stay at home for practice and pickup gigs.

When I got it the first thing I did was give a tug on each knob and they all held firm. Guess I got a good one. :D

BTW, Is this a club with numbers?

I just got an RH750 about a week ago. I contacted TC Electronic customer service with my S/N and they were able to confirm that it was manufactured about 1 month ago and it has the most recent knobs (that don't break, hopefully). I'd guess as long as your unit wasn't sitting in a warehouse for years, you've probably got the new knobs too. When I contacted TC via email, they got back to me in 1 day! I'll be honest, the knobs and buttons aren't as solid feeling as I would expect for a $1000 amp, but we'll see.

Used mine for my first time at a rock gig last night. Definitely more growly and mid oriented than the Mesa M6 Carbine I'm coming from (M6 was more open and wide, 'modern' sounding). But the RH750 is really growing on me. It's smaller, lighter, and loud as heck!

Enjoy your new head!

Question: are the foot pedal and gig bag worth the investment?
 
The foot pedal is great if you are changing tones often and it is handy having a foot switchable mute. I just use an old laptop bag for a gig bag

+1

I use the presets for different basses so I just switch to the proper preset of the bass I just grabbed. No need for the footswitch. And I always tune at the amp.

I also have an old Targus laptop backpack to carry the amp in so no need for the bag.

YMMV
 
How different do you find the RH750 from the 450?

OK, had a couple rehearsals with the RH750 and this is a keeper for my main band. Definitely louder than the RH450, more direct access to the features I want to tweak (tubetone and spectracomp), and better control over the "open top end" with the tweeter tone.

I don't care what the "specs" say (236 watts long term RMS for both the 450 and 750). This is a louder amp. Where I was setting the the master for the RH450 at 1-2 o'clock I have RH750 at 9-10 o'clock. I also get the same preamp I was used to using with the Blacksmith but in a much more portable package.

I couple this with an Aguilar DB212 4ohm cab and my Spector sounds great!
 
I don't care what the "specs" say (236 watts long term RMS for both the 450 and 750). This is a louder amp. Where I was setting the the master for the RH450 at 1-2 o'clock I have RH750 at 9-10 o'clock.

Then SURELY the 750 has to sound totally squeezed and compressed compared to the 450? Since all TC does is some fancy compression? Given that they both are limitied to 236w. ;)

This is no joke, I read about it here on TB. :)
 
I don't care what the "specs" say (236 watts long term RMS for both the 450 and 750). This is a louder amp. Where I was setting the the master for the RH450 at 1-2 o'clock I have RH750 at 9-10 o'clock.

Keep in mind, the "specs" actually do say that the RH750 is a louder amp. While both heads are hard limited to a peak of 236 watts, the 750 produces more output on the tail end of the envelope following the peak.
 
Keep in mind, the "specs" actually do say that the RH750 is a louder amp. While both heads are hard limited to a peak of 236 watts, the 750 produces more output on the tail end of the envelope following the peak.

That's what I don't understand. According to the spec sheet from TCE, 236 is the Long Term W_RMS 4R for both amps. But it's Burst 20msec / 1khz W_RMS 4R where the RH450 is rated 264W and the TH750 is rated 450W. It's all greek to me.

I only use a little Spectracomp. Enough so 2-3 leds drop down when I'm hitting it. I've always like compression so maybe the APM is giving me that too.

All I know is this amp kicks ass and I'm using it. :bassist:


PS... I wish BGM would do a write up on the RH750 with the analysis like they did on the RH450.
 
That's what I don't understand. According to the spec sheet from TCE, 236 is the Long Term W_RMS 4R for both amps. But it's Burst 20msec / 1khz W_RMS 4R where the RH450 is rated 264W and the TH750 is rated 450W. It's all greek to me.

Tom Lees explained how the TC Active Power Management works back in Link Removed.