A few weeks later: impressions on the Orange Thunderverb 50

Surgeon

New member
I've liked it, then didn't...then loved it (and I'm stuck at that level for now).

The didn't like it part happened at lower volumes hence the following:

First and foremost: this thing needs to be loud to sound great. Some amps will still do the trick at lower volumes but this one is worse than both my Rocker 30 and Rectoverb at quieter volumes. You'll read tons of reviews of folks saying the attenuator makes it very good for home-playing. It depends on your definition of home-playing. If you need quiet volume not to disturb your wife/GF or sleeping baby in another room (I'm in a makeshift "soundproofed" [not professionnaly soundproofed, hence the quotes]): that won't work. At these low levels Channel B turns to mush and channel A sounds utterly boxy.
So, the general rule is: less attenuator (as little as possible) and a bit of volume. Doesn't need to be much volume but too much attenuation and too little on the volume knobs will make for bad tones.

Shape knob on channel B: quite different from the one on my former TH30, which was quite versatile at any gain levels. On the TV the less gain the better it performs but the more gain you dial the less it becomes useable and needs to be pretty much left at noon (it does sound GREAT there though). I'm a bit disappointed with this (since my previous experience with said shape knob was so positive but I'm relieve that I get the tones I need nonetheless...) but hey, it works for me anyways.

Cleans: great from both channels and even though you have to keep the gain below 9 o'clock to keep things clean, there's enough volume left on tap to be quite useable live. Channel A's cleans are nice and jangly, B's are deeper. Both very nice.

Dirty: nothing to say other than both channels deliver. Nice amount of gain for channel A. channel B has more of it and sounds quite more bassy, hence the mushiness at lower volumes. This thing can be crunchy on both channels but channel B is CRUSHING when pushed. Lovely.

The key for me to avoid the mushiness really was volume. Can't play it that often at those volumes but that's where it delivers and sounds amazing.
Still sounds good at a bit lower volumes through my 1x12 with the eminence Reignmaker in it if there's not too much attenuation at the speaker (let's say 50% or less) but still allowing me to put less attenuation from the amp.

How I turned it into even more of a firebreather:

- EH 6CA7s in the power amp.
- The original tubes were biased quite cool (about 55% plate dissipation) so I biased them around 65%.
- EH12ax7 in v1, Tung Sol 12ax7s in v2 and v3, Sovtek 12ax7lps in the PI.

There's a bit more sparkle in there now, gain sounds are crunchier and have more cut while retaining the low-mids.

I just love that amp now, can't stop playing it.
 
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Re: A few weeks later: impressions on the Orange Thunderverb 50

You know, I liken amps like that to a dragster with a very aggressive valve timing and such. It doesn't idle for crap, it sounds wacky and rough. But when you get the R's up, it screams proper.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

You know, I liken amps like that to a dragster with a very aggressive valve timing and such. It doesn't idle for crap, it sounds wacky and rough. But when you get the R's up, it screams proper.

Guess you're right. Surely there's a reason why Orange decided to bias it so cool (I won't assume they don't know what they're doing) but for me, the magic really happened when pushed harder. I'm actually thinking about trying the EL34s again at some point but biased higher...

The major difference was with Channel B, which sounded clearer.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

Yepp I have an Orange AD30HTC right now with a traynor V30 cab.... They really sound their best at higher volumes.. at lower volumes I find it either too muddy or too fizzy. I'm not a big Orange fan to be honest. I rented this Orange for recording but its meh for me.

I tried the TH100 and had the exact same issue.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

I like Orange for that Low end growl and roaring dirt but I don't think of their distortion is tight enough for me though or maybe through the right cab that would fix it.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

I like Orange for that Low end growl and roaring dirt but I don't think of their distortion is tight enough for me though or maybe through the right cab that would fix it.
Maybe but you don't buy those to get a tight distortion sound either. It can be achieved but for me it's all about low mid growl and fuzzy overtones. I have a rectoverb for tight and aggressive stuff.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

How I turned it into even more of a firebreather:

- EH 6CA7s in the power amp.
- The original tubes were biased quite cool (about 55% plate dissipation) so I biased them around 65%.
- EH12ax7 in v1, Tung Sol 12ax7s in v2 and v3, Sovtek 12ax7lps in the PI.

There's a bit more sparkle in there now, gain sounds are crunchier and have more cut while retaining the low-mids.

Hey, sorry to bump an old thread, but I have a few questions. I also purchased TV50 around the same time as you, and used your review as a reference, thx for that. Now I am not very experienced with tubes. I know however that stock tubes are not the best out there. I am researching what I could change them with. I was wondering if you could elaborate on your choice of tubes in particular and tell me what was the exact reason for these specific tubes in their locations. What I need is probably a little more gain (I know it won't have another stage of gain like rockerverb with the change of tubes but maybe there hotter ones), and a little more highs. I quite like EL34s usually in poweramp so I would probably just swap stock JJ's with EH. Any recomendations would be very appreciated.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

I just saw rhis but it's late... Will reply tomorrow if you don't mind.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

I remember those exact same power tubes turned my Tweaker into a trebly mess when driven.
Still a great sound.
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

Hey, sorry to bump an old thread, but I have a few questions. I also purchased TV50 around the same time as you, and used your review as a reference, thx for that. Now I am not very experienced with tubes. I know however that stock tubes are not the best out there. I am researching what I could change them with. I was wondering if you could elaborate on your choice of tubes in particular and tell me what was the exact reason for these specific tubes in their locations. What I need is probably a little more gain (I know it won't have another stage of gain like rockerverb with the change of tubes but maybe there hotter ones), and a little more highs. I quite like EL34s usually in poweramp so I would probably just swap stock JJ's with EH. Any recomendations would be very appreciated.

Stock tubes are quite fine but of course, you can do better.

I've always favored 6ca7s (EH's 6ca7s to be exact) in my Oranges (Rocker 30 included). To my ears, they have the same midrange as a good el34 set but bring forth a bit more low end and clarity, just a "best of everything" in Orange amps so far...to me.
IMHO, you should try them, they aren't expensive (compared to a lot of higher-end or NOS el34s anyways) and you might like them.

As far as preamp tubes go, I've been a huge fan of TungSols in almost every amp I've owned/tried (I'm the kinda guy that would rather find the best available current tube for his set-up and amp than go around hunting for vintage tubes that won't be easily replaceable in the end...weird I know). However, lately, I've been impressed with EH's 12ax7 (I really didn't expect them to measure up to TSols but the ones that came in my Rocker 30 really surprised me). I bought some "regular" ones and compared them with the gold-pin variant and didn't hear any worthwhile (to me) differences. The Sovtek are the standard killer PI spot suggestion so I had a few of these on hand.

I just went and tried all of them in each spot until I found a combination that sounded best to me, through my set-up.

If you want my humble opinion, a nice set of either EH or TungSols (the latter might be a tad brighter and bring out a bit more liveliness in your B channel) should do amazingly well and not break the bank... at least that's what I'd do if I didn't have a bunch of different tubes on hand, the TS have always been killer in all the amps I've owned.

If you are able to do it yourself, I'd suggest raising the bias a tiny bit like I did. You might like it a lot the way it is now but it's worth a try if it's not too much trouble (i.e.: going to a tech and paying him for something you may or may not like and end-up going again to change it back).

For what it's worth, I effin' love that amp now (a year later) even moreso than when I wrote this review... it's mostly the reignmaker that doesn't work well with it. As soon as I plug the head in my 2x12 with Govnors, it comes alive and sounds wonderful. It's definitely a keeper/amazing amp.

I'm a very lucky dude amp-wise, all my amps I can plug into and remember why I love them so much. I don't have a number 1, just a bunch of them... The TV is awesome, the Rectoverb is everything I want in a recto, the rocker 30 is probably the one that sees less playing time and still it's amazing. My home-made 2203 is simply killer... and I'll be building a hiwatt soon!

Oh, and glad that my review helped you...
 
Re: A few weeks later: impressions on the Orange Thunderverb 50

This is awesome. Thank you for another helpful post. I will definitely be trying some of your suggestions!
 
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