The people that comment about what color the back drop is probably don't even post videos. I personally don't care what the back drop is. I tune in for the content, not the ambience.
Oh, no, I’m not saying people criticize the background. I’m talking about general ways to make videos look better - most channels don’t have to worry about things like this making amps noisy.
I just had this problem with a Rivera Thirty Twelve combo. It turned out that something on the speaker itself was vibrating at specific frequencies. A block of wood between the back cabinet support and the back of the speaker with just enough tension to keep it in place fixed all the problems. The speaker has a sticker on the back, rather than a sheet metal cover, so I'm at a loss for why this works, unless there is just a little space between the back and the pole piece or the ring around the voice coil.
I bought a Sweetwater special edition Princeton and the power tubes rattled like crazy with volume at 5. Returned it and got another one - same exact problem. Returned that and moved on. Maybe this is not so rare with combo amps with a lot of low end? I dig your channel.
Redo the baffle board with 5 ply baltic void less birch use the old one for pattern for tbolt holes and transfer the grill to new baffle but paint the baffle flat black so it does not show through the grill. that will fix that rattle trap ... simple as a flat head screw driver to remove the staples and transferring it over, if its oxblood with pattern you start on an edge keeping the lines straight vertical down the baffle and tight over across the top in the corners first same with bottom right as top right then work backwards making sure the grill is tight working right to left.. if its done this way the lines remain straight by the time you carefully tighten and stretch it back as you go to the top left and bottom left side, all the pattern will be tight and straight and cosmetically right. I built amps in production line for 3 years doing all aspects covering tolex or tweeds doing grill cloth restoration and punching ilet boards and populating parts I was final inspection also so it had to be perfect or my ass got chewed . Now I was signing tube labels as the original employees were doing for quality control and the Japanese were wondering who Ron Frey was so I got my ass chewed anyway.. Its the story of my life damned if I do Damned if I dont. id put a straight edge on the 335 and rock every fret to make sure its level same for the strat but it sounds like the baffle to me buzzing screws or rattle trap vibration and they cut corners on cost for baffle using particle board crap or ply with voids in it which are dead spots for a speaker anyway.. So Steve Hennig who did All of Stevie Rays and Eric Johnsons amp work , an amazing player himself showed me that on my own blackface twins as he did Ejs the same way. So the sound improves with the baltic and no buzz.. Eric was in studio and heard a vibration like that and said the screws are loose the techs had taken the 4 12 apart all morning and afternoon already and no screws lose and Eric said did you look in between the baffle board and they took it apart again and he had them remove the speakers and he crawled in and found a lose screw between baffle and it was rattling.... Never question the Master at work.. Everyone in the studio could not believe he could hear it buzzing much less find it himself. EVERYTHING MATTERS AND I WILL NEVER LIE ABOUT TONE ITS NOT IN ME.
In some combo amps which have thin chassis material, the chassis as well can resonate and make a sound which is unbelievably loud and irritating and disturbing and the problem can be very difficult to get rid of because if you do something to suppress it, the resonant frequency sometimes just changes to different frequency. 😁
It's the LED driver, Lyle. Two or more different colored batches of LEDs are being switched on and off at a high rate of speed to create all of those pretty colors.
LED's like that can also emit some pretty serious RF interference as well. I've heard of LED strips inside racks of wireless mic receivers completely take down those systems when on.
@@dustinthiessen , a battery-powered AM/Fm radio can make a pretty good RF sniffer ( We did this at the audio shop I work for part time in order to test new screw-in LED bulbs for RF output level. Plugging it into the wall to run it off of AC is a good secondary test). The RF noise generated by LED's or switching power supplies can sometimes go back out through the power cord and cause the AC wiring in the club or home to become a secondary radiating antenna. Putting a clamp-on ferrite on the power cord or just inside the device where the power comes into it can sometimes prevent that noise from going back out on the power cord. Once upon a time the FCC was supposed to oversee testing of electronic devices and insist on internal filtering to minimize RF generation and radiation, but after decades of intentional budget cutting and infiltration by Silicon Valley industry insiders, I don't think they have the man-power or willpower to police the onslaught of noisy products. About all the FCC seems to do these days is allow corporate behemoths to buy up markets and on-air frequencies, increasing their market share of internet, radio/TV and cellphone customers to near-monopoly status.
Oh, I was kinda just doing chords everywhere trying to make the amp mess up, making sure I tried a lot of keys. Wasn’t really playing, just making noise. The amp passed the test.
Hi, i have a P12N from a GA with the verticle slots....5 or 7 i think, im too poor to fix it, but i'd let you have it if you cover shipping.........i still have pics of the amp, and any you want done for condition, be well.
I do sound for a lot of 50-200 people gigs, LED strings/ropes are really noisy with anything with magnetic pickups. Usually ok with piezos and most mics and of course purely electronic instruments like synths. The LEDs are noisiest at mid intensity when they're presumably flickering on and off the most and often ok at full brightness or off. I'm pretty sure it''s the pickup more than the amp 'koz I think its also in the bass DI that I usually put between the instrument and the amp. Tho' the place I mostly notice unwanted noise on the bass also has incandescents on dimmers.
Back in the 90's (long before LED lighting) I went to a Bonnie Raitt show with the phenomenal Richard Thompson opening the show on solo acoustic. Between songs, somebody dimmed the lights at the back of the theater and a loud buzz came through the PA. Thompson called out "don't do that, either put the lights all the way up or all the way down, but not in between". He went on further: "America's a wonderful country, very technologically advanced, but you haven't figured out how to earth a sound system properly". Of course, electronic dimmers work by chopping off the peaks of the AC house current and so even with incandescent lamps they can generate a lot of hash and electrical/RF noise; and today's ubiquitous switching power-supplies generate lots of high-frequency noise. I have been wondering what the RF noise level is like for performance on stage now that a lot of concert lighting is probably switched over to LED's. The performers probably prefer not sweating and baking under a bunch of glorified restaurant hot-lamps, but any increase in RF buzz and hum has gotta be annoying. There's a David Lindley and El RayoX show on RUclips from Germany back in the 1980s where David introduced the bandmembers and concluded, "we'd like to thank the unseen member of the band now: the hum in the PA system!". Even the high-tech countries don't always get it right. (PS, a highlight of the Thompson/Raitt show was when Thompson duetted with Bonnie on "Angel From Montgomery" and Richard's own "Dimming of the Day").
It sounds like a tweed. The break up gets pretty loose and ratty, but it’s a sound some people go for. I have this amp, sounds very nice up to around 1 or 2 o’clock on the volume. I haven’t found a pedal I like with it yet, it’s pretty honky
Lyle, lol, its good thing I have no desire to be a tech,( just want to build my own gear) I rarely hear the noise your talking about over the tinnitus ringing 24/7 (10k at what feels like 55-60db) unless I crank it to my headphones I take your word for what you're hearing😉
Lyle, did you use an audio signal generator to drive the amp and speaker, sweeping tone through the unit to track down the source of rattles and resonances?
@@stevencraig , haven't watched it all, barely had a chance to watch any of it really; I was interrupted (a frequent occurrence in my house) and had to pause it.....
@@stevencraig , actually, he said that *sometimes* he uses the signal generator but he often finds it faster/better to use the guitar to drive the cabinet. Personally, I go with the signal generator technique (but I come from a hifi repair and audio installation background, so it's what I'm most used to ---- and hifi clients will squawk loudly about low-level extraneous noises that guitarists often ignore). If you're gonna do this with a guitar, it's helpful to have one person to play and another person to listen to the amp close up and push on the amp cabinet/speaker frame/baffle/chassis to see if you can stop the buzzes and rattles by pressing on certain spots. Obviously, guys with beaucoup experience like Lyle can do it single-handed!
@@goodun2974 yeah, I know what he said. I watched the video *before* commenting. That way there was no need to provide my unsolicited and unneeded advice.
Love the tone of these GA Gibson amps
The people that comment about what color the back drop is probably don't even post videos. I personally don't care what the back drop is. I tune in for the content, not the ambience.
Oh, no, I’m not saying people criticize the background.
I’m talking about general ways to make videos look better - most channels don’t have to worry about things like this making amps noisy.
That amp loves that start.
Because you do live streams and answer as many people as you can, free of charge, you really don't need to look at the comments for these type. 😉👍👍👍
They are amazing amps !
I just had this problem with a Rivera Thirty Twelve combo. It turned out that something on the speaker itself was vibrating at specific frequencies. A block of wood between the back cabinet support and the back of the speaker with just enough tension to keep it in place fixed all the problems. The speaker has a sticker on the back, rather than a sheet metal cover, so I'm at a loss for why this works, unless there is just a little space between the back and the pole piece or the ring around the voice coil.
I bought a Sweetwater special edition Princeton and the power tubes rattled like crazy with volume at 5. Returned it and got another one - same exact problem. Returned that and moved on. Maybe this is not so rare with combo amps with a lot of low end? I dig your channel.
Redo the baffle board with 5 ply baltic void less birch use the old one for pattern for tbolt holes
and transfer the grill to new baffle but paint the baffle flat black so it does not show through the grill.
that will fix that rattle trap ... simple as a flat head screw driver to remove the staples and transferring it over,
if its oxblood with pattern you start on an edge keeping the lines straight vertical down the baffle and tight over across the top in the corners first same with bottom right as top right then work backwards making sure the grill is tight working right to left.. if its done this way the lines remain straight by the time you carefully tighten and stretch it back as you go to the top left and bottom left side, all the pattern will be tight and straight and cosmetically right.
I built amps in production line for 3 years doing all aspects covering tolex or tweeds doing grill cloth restoration and
punching ilet boards and populating parts I was final inspection also so it had to be perfect or my ass got chewed .
Now I was signing tube labels as the original employees were doing for quality control and the Japanese were wondering who Ron Frey was so I got my ass chewed anyway..
Its the story of my life damned if I do Damned if I dont.
id put a straight edge on the 335 and rock every fret to make sure its level
same for the strat but it sounds like the baffle to me buzzing screws or rattle trap vibration
and they cut corners on cost for baffle using particle board crap or ply with voids in it which
are dead spots for a speaker anyway.. So Steve Hennig who did All of Stevie Rays and Eric Johnsons
amp work , an amazing player himself showed me that on my own blackface twins as he did Ejs the same way.
So the sound improves with the baltic and no buzz..
Eric was in studio and heard a vibration like that and said the screws are loose the techs had taken the 4 12 apart all morning and afternoon already and no screws lose and Eric said did you look in between the baffle board and they took it apart again and he had them remove the speakers and he crawled in and found a lose screw between baffle and it was rattling....
Never question the Master at work..
Everyone in the studio could not believe he could hear it buzzing much less find it himself.
EVERYTHING MATTERS AND I WILL NEVER LIE ABOUT TONE ITS NOT IN ME.
Pretty colors in the back? What is this, a nursery?!
In some combo amps which have thin chassis material, the chassis as well can resonate and make a sound which is unbelievably loud and irritating and disturbing and the problem can be very difficult to get rid of because if you do something to suppress it, the resonant frequency sometimes just changes to different frequency. 😁
It's the LED driver, Lyle. Two or more different colored batches of LEDs are being switched on and off at a high rate of speed to create all of those pretty colors.
Send the device to Big Clive for a teardown and analysis! 😁
LED's like that can also emit some pretty serious RF interference as well. I've heard of LED strips inside racks of wireless mic receivers completely take down those systems when on.
@@dustinthiessen , a battery-powered AM/Fm radio can make a pretty good RF sniffer ( We did this at the audio shop I work for part time in order to test new screw-in LED bulbs for RF output level. Plugging it into the wall to run it off of AC is a good secondary test). The RF noise generated by LED's or switching power supplies can sometimes go back out through the power cord and cause the AC wiring in the club or home to become a secondary radiating antenna. Putting a clamp-on ferrite on the power cord or just inside the device where the power comes into it can sometimes prevent that noise from going back out on the power cord. Once upon a time the FCC was supposed to oversee testing of electronic devices and insist on internal filtering to minimize RF generation and radiation, but after decades of intentional budget cutting and infiltration by Silicon Valley industry insiders, I don't think they have the man-power or willpower to police the onslaught of noisy products. About all the FCC seems to do these days is allow corporate behemoths to buy up markets and on-air frequencies, increasing their market share of internet, radio/TV and cellphone customers to near-monopoly status.
Your noodling on this video had a Nirvana sound and style. When you changed to the Strat I couldn’t make out the vibe.
Oh, I was kinda just doing chords everywhere trying to make the amp mess up, making sure I tried a lot of keys. Wasn’t really playing, just making noise.
The amp passed the test.
More hemp cone and a shot of Jack🍺✌🏻🎸🎶
Hi, i have a P12N from a GA with the verticle slots....5 or 7 i think, im too poor to fix it, but i'd let you have it if you cover shipping.........i still have pics of the amp, and any you want done for condition, be well.
I do sound for a lot of 50-200 people gigs, LED strings/ropes are really noisy with anything with magnetic pickups. Usually ok with piezos and most mics and of course purely electronic instruments like synths. The LEDs are noisiest at mid intensity when they're presumably flickering on and off the most and often ok at full brightness or off. I'm pretty sure it''s the pickup more than the amp 'koz I think its also in the bass DI that I usually put between the instrument and the amp. Tho' the place I mostly notice unwanted noise on the bass also has incandescents on dimmers.
Back in the 90's (long before LED lighting) I went to a Bonnie Raitt show with the phenomenal Richard Thompson opening the show on solo acoustic. Between songs, somebody dimmed the lights at the back of the theater and a loud buzz came through the PA. Thompson called out "don't do that, either put the lights all the way up or all the way down, but not in between". He went on further: "America's a wonderful country, very technologically advanced, but you haven't figured out how to earth a sound system properly". Of course, electronic dimmers work by chopping off the peaks of the AC house current and so even with incandescent lamps they can generate a lot of hash and electrical/RF noise; and today's ubiquitous switching power-supplies generate lots of high-frequency noise. I have been wondering what the RF noise level is like for performance on stage now that a lot of concert lighting is probably switched over to LED's. The performers probably prefer not sweating and baking under a bunch of glorified restaurant hot-lamps, but any increase in RF buzz and hum has gotta be annoying.
There's a David Lindley and El RayoX show on RUclips from Germany back in the 1980s where David introduced the bandmembers and concluded, "we'd like to thank the unseen member of the band now: the hum in the PA system!". Even the high-tech countries don't always get it right. (PS, a highlight of the Thompson/Raitt show was when Thompson duetted with Bonnie on "Angel From Montgomery" and Richard's own "Dimming of the Day").
Very cool amp! As long as it stays cleanish. Wonderfull!
Or is it just me that cannot appreciate the distorted sound of the GA-18T?
Distorted sound is awful
It sounds like a tweed. The break up gets pretty loose and ratty, but it’s a sound some people go for. I have this amp, sounds very nice up to around 1 or 2 o’clock on the volume. I haven’t found a pedal I like with it yet, it’s pretty honky
Combos come with their own eccentricities 😂
Cool sounding amp😎👍
Lyle, lol, its good thing I have no desire to be a tech,( just want to build my own gear) I rarely hear the noise your talking about over the tinnitus ringing 24/7 (10k at what feels like 55-60db) unless I crank it to my headphones I take your word for what you're hearing😉
One word: lava lamp. Ok, two words
Lyle, did you use an audio signal generator to drive the amp and speaker, sweeping tone through the unit to track down the source of rattles and resonances?
He says so at 3:20 in the video...
And again at 7:30
@@stevencraig , haven't watched it all, barely had a chance to watch any of it really; I was interrupted (a frequent occurrence in my house) and had to pause it.....
@@stevencraig , actually, he said that *sometimes* he uses the signal generator but he often finds it faster/better to use the guitar to drive the cabinet. Personally, I go with the signal generator technique (but I come from a hifi repair and audio installation background, so it's what I'm most used to ---- and hifi clients will squawk loudly about low-level extraneous noises that guitarists often ignore). If you're gonna do this with a guitar, it's helpful to have one person to play and another person to listen to the amp close up and push on the amp cabinet/speaker frame/baffle/chassis to see if you can stop the buzzes and rattles by pressing on certain spots. Obviously, guys with beaucoup experience like Lyle can do it single-handed!
@@goodun2974 yeah, I know what he said. I watched the video *before* commenting. That way there was no need to provide my unsolicited and unneeded advice.
don't hear Tangerine on a lot of youtube vids
Sounds like an Ac-4 with a 10 or 12” speaker.
Batman!
You’re right. Really boring lol