hehe yeah Jack would love a few loose capacitorsJazzGuitarGimp wrote: ↑Wed Oct 30, 2019 6:59 am I’d swear I heard the cat say: “Oh boy! Daddy dropped a toy for me to bat around!”
~Phil
Moderators: pompeiisneaks, Colossal
hehe yeah Jack would love a few loose capacitorsJazzGuitarGimp wrote: ↑Wed Oct 30, 2019 6:59 am I’d swear I heard the cat say: “Oh boy! Daddy dropped a toy for me to bat around!”
No it's a simple unbuffered effects loop.Guitarist wrote: ↑Thu Oct 31, 2019 5:16 am I'm just new here so thought to say hello. I've been on Ampage for 15 years or so and it's a good forum as well. I have a Blues Deluxe reissue that I've modded over the years, basically as far as it go. It still doesn't deliver. I've modded a number of amp types over the years mainly around Vancouver but now I live in the country next to the clean and pristine Kootenay Lake in BC.
For many years, I've been fascinated with Dumbles and other amps. So I'm here due to, gladly and thankfully, seeing that you've made a KILLER board! That is so fully cool and enabling for the aspiring player and furrowed-eyebrowed solder alike myself.
Among other things, thanks "Frenchy" for the videos and sorry for your editing troubles. I hope you get your squealing figured. It could be that you're OT wires got reversed so as the amp now gets positive feedback. If I can, I use twisted pair with shield for signal runs (pseudo balanced) or just shielded. Which may sound to be more Dumble-jumbo;) But you seem experienced so likely of these sort of things anyways. I was at a jam recently and a fellow used speaker cable going into an amp. This picked up mucho noise but hearing that showed how much shielding actually helps.
I would miss that reverb though...
Pardon but, is the effects loop buffered?
pompeiisneaks wrote: ↑Thu Oct 31, 2019 5:52 amNo it's a simple unbuffered effects loop.Guitarist wrote: ↑Thu Oct 31, 2019 5:16 am I'm just new here so thought to say hello. I've been on Ampage for 15 years or so and it's a good forum as well. I have a Blues Deluxe reissue that I've modded over the years, basically as far as it go. It still doesn't deliver. I've modded a number of amp types over the years mainly around Vancouver but now I live in the country next to the clean and pristine Kootenay Lake in BC.
For many years, I've been fascinated with Dumbles and other amps. So I'm here due to, gladly and thankfully, seeing that you've made a KILLER board! That is so fully cool and enabling for the aspiring player and furrowed-eyebrowed solder alike myself.
Among other things, thanks "Frenchy" for the videos and sorry for your editing troubles. I hope you get your squealing figured. It could be that you're OT wires got reversed so as the amp now gets positive feedback. If I can, I use twisted pair with shield for signal runs (pseudo balanced) or just shielded. Which may sound to be more Dumble-jumbo;) But you seem experienced so likely of these sort of things anyways. I was at a jam recently and a fellow used speaker cable going into an amp. This picked up mucho noise but hearing that showed how much shielding actually helps.
I would miss that reverb though...
Pardon but, is the effects loop buffered?
There are many different kinds of loops people sell that can tie in pretty easily to any amp, a metro loop etc. One of those might fit the bill. I've not yet tried out the loop to see if I see any specific problems with it. Nowadays many pedals come with a buffer to help combat loss, or you can just use a buffer pedal in your loop as well. Doesn't perfectly resolve the tone suck of a passive loop, but it helps.
Thanks for your comments, much appreciated!
~Phil
So if I'm understanding that right, a buffer isn't a buffer, unless it's a buffer? Someone help menorburybrook wrote: ↑Thu Oct 31, 2019 10:55 ampompeiisneaks wrote: ↑Thu Oct 31, 2019 5:52 amNo it's a simple unbuffered effects loop.Guitarist wrote: ↑Thu Oct 31, 2019 5:16 am I'm just new here so thought to say hello. I've been on Ampage for 15 years or so and it's a good forum as well. I have a Blues Deluxe reissue that I've modded over the years, basically as far as it go. It still doesn't deliver. I've modded a number of amp types over the years mainly around Vancouver but now I live in the country next to the clean and pristine Kootenay Lake in BC.
For many years, I've been fascinated with Dumbles and other amps. So I'm here due to, gladly and thankfully, seeing that you've made a KILLER board! That is so fully cool and enabling for the aspiring player and furrowed-eyebrowed solder alike myself.
Among other things, thanks "Frenchy" for the videos and sorry for your editing troubles. I hope you get your squealing figured. It could be that you're OT wires got reversed so as the amp now gets positive feedback. If I can, I use twisted pair with shield for signal runs (pseudo balanced) or just shielded. Which may sound to be more Dumble-jumbo;) But you seem experienced so likely of these sort of things anyways. I was at a jam recently and a fellow used speaker cable going into an amp. This picked up mucho noise but hearing that showed how much shielding actually helps.
I would miss that reverb though...
Pardon but, is the effects loop buffered?
There are many different kinds of loops people sell that can tie in pretty easily to any amp, a metro loop etc. One of those might fit the bill. I've not yet tried out the loop to see if I see any specific problems with it. Nowadays many pedals come with a buffer to help combat loss, or you can just use a buffer pedal in your loop as well. Doesn't perfectly resolve the tone suck of a passive loop, but it helps.
Thanks for your comments, much appreciated!
~Phil
Phil,
The buffered FX loop isn't the same thing as a buffer in a pedal, it's to do mainly with level matching /gain staging rather than tone loss, although that comes into it as well.
M
Yes correct, but you don't want a 100Vpp signal coming to the fx loop hit your 9v powered buffer. Poofffffff.....JazzGuitarGimp wrote: ↑Thu Oct 31, 2019 4:56 pm Phil, you are correct; a buffer is a buffer, which is a unity gain amplifier that lowers the source impedance of a signal. I think norbury may be confusing a buffer with a recovery amplifier.
JazzGuitarGimp wrote: ↑Thu Oct 31, 2019 4:56 pm Phil, you are correct; a buffer is a buffer, which is a unity gain amplifier that lowers the source impedance of a signal. I think norbury may be confusing a buffer with a recovery amplifier.
This has not been my experience.norburybrook wrote: ↑Thu Oct 31, 2019 6:45 pm I Know that using the passive Dumble loop into pedals kills your tone regardless of buffered pedals.
Gain staging is an important ingredient to getting great sound from any effects processor; it goes without saying. To that end, both preamp channels of the BM have a level control just before the relay that selects the Clean or OD channel, thus allowing for gain staging.norburybrook wrote: ↑Thu Oct 31, 2019 6:45 pm p.s. Lou , yes you wont destroy a 9v pedal but they sound like shit without the proper gain staging/matching of a Dumbleator.
Lou,JazzGuitarGimp wrote: ↑Thu Oct 31, 2019 7:02 pmThis has not been my experience.norburybrook wrote: ↑Thu Oct 31, 2019 6:45 pm I Know that using the passive Dumble loop into pedals kills your tone regardless of buffered pedals.
Gain staging is an important ingredient to getting great sound from any effects processor; it goes without saying. To that end, both preamp channels of the BM have a level control just before the relay that selects the Clean or OD channel, thus allowing for gain staging.norburybrook wrote: ↑Thu Oct 31, 2019 6:45 pm p.s. Lou , yes you wont destroy a 9v pedal but they sound like shit without the proper gain staging/matching of a Dumbleator.
And your mileage could be a result of the type of effects you’ve got in your loop. For example, if your first processor in the loop is a high-level studio-grade unit, its input impedance could range anywhere from a few thousand ohms to about 100K-ohms. Even at the upper end, 100K-ohms, a passive loop won’t have a low-enough output impedance to properly drive that input to full bandwidth; there will be a noticeable loss in high frequency information. And the lower the processors’norburybrook wrote: ↑Thu Oct 31, 2019 7:11 pmLou,JazzGuitarGimp wrote: ↑Thu Oct 31, 2019 7:02 pmThis has not been my experience.norburybrook wrote: ↑Thu Oct 31, 2019 6:45 pm I Know that using the passive Dumble loop into pedals kills your tone regardless of buffered pedals.
Gain staging is an important ingredient to getting great sound from any effects processor; it goes without saying. To that end, both preamp channels of the BM have a level control just before the relay that selects the Clean or OD channel, thus allowing for gain staging.norburybrook wrote: ↑Thu Oct 31, 2019 6:45 pm p.s. Lou , yes you wont destroy a 9v pedal but they sound like shit without the proper gain staging/matching of a Dumbleator.
If I could plug FX pedals straight into any of my 'Dumble's' loop and it sounded fine I'd be more than happy. I'm building at the moment and because I want a grab and go without having a Dumbleator I'm having to build it in which is a tight fit
Honestly I've tried but passive FX loops don't seem to work for me, I really wish it wasn't so. At low volumes /clean it's OK but as soon as you start on the OD with some gain it all falls apart.
YMMV