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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
 Posted - 04/25/2008 : 11:56:48
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I put my DS-1 back on the 'board as an experiment the other evening as a distortion would be handy for some of our stuff,but i noticed huge differences in volume levels between the duncan twin tube and the DS-1.....i've post the link to the specs of the twin tube at the ducan website..maybe Dr Bob,laurie etc ..i.e a bit more tech minded than me could shed some light on this....i had to max the DS-1's volume and the twin tubes volumes weren't even at halfway with a serious volume difference.....i know the good Doc spoke before about the older boss pedals having lower input impedances(my DS-1 is jap '84) i think it's 470k..but my OD-2,FZ-3,DS-1 and the HM-2 seem a little on the low side as well compared to other brands,is this the reason..?........
http://www.seymourduncan.com/products/dimensionpages/sfx_03_specs.shtml |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 04/25/2008 : 13:03:04
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Hi Franzoni
It's no wonder the Duncan Twin Tube is louder.
Have a look at it's massive output capability, compared to the DS-1.
As you have already found out,
you will have to really back off the Twin Tube to match the DS-1's Max level.
It's because the tubes are capable of a massive amount of gain, in the high voltage configuration, that they were designed to run in.
DS-1 Specs:
Specifications
* Nominal Input Level: -20dBu
* Nominal Output Level: -20dBu
* Output Impedance: 1kohm
Twin Tube Specs:
Max. output level before clipping: 2 Vrms (+8dBu)
Electronics can be a bitch.
Regards Dr. Bob
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Edited by - Dr. Bob on 04/25/2008 13:05:06 |
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happyplucker
Bronze Member
United Kingdom
126 Posts |
Posted - 04/25/2008 : 15:44:19
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what do you use the duncan twin tube for, and i dont mean that to sound like a dumb question?  |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 04/25/2008 : 15:51:29
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quote:
Originally posted by Dr. Bob
Hi Franzoni
It's no wonder the Duncan Twin Tube is louder.
Have a look at it's massive output capability, compared to the DS-1.
As you have already found out,
you will have to really back off the Twin Tube to match the DS-1's Max level.
It's because the tubes are capable of a massive amount of gain, in the high voltage configuration, that they were designed to run in.
DS-1 Specs:
Specifications
* Nominal Input Level: -20dBu
* Nominal Output Level: -20dBu
* Output Impedance: 1kohm
Twin Tube Specs:
Max. output level before clipping: 2 Vrms (+8dBu)
Electronics can be a bitch.
Regards Dr. Bob
WoW! 28dB higher! That's... ummm... 30 times the voltage out!! |
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DeFrag
Moderator
USA
3409 Posts |
Posted - 04/25/2008 : 16:29:47
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Crikey!  |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 04/25/2008 : 16:46:29
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quote:
Originally posted by happyplucker
what do you use the duncan twin tube for, and i dont mean that to sound like a dumb question?
Hi happyplucker
Please Check your PM..... Good News
Apologies guys, as this is off topic.
Regards Dr. Bob |
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DeFrag
Moderator
USA
3409 Posts |
Posted - 04/26/2008 : 03:19:50
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| Off with your head. |
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Leeroyfunk
Silver Member
United Kingdom
400 Posts |
Posted - 04/26/2008 : 14:05:18
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| I noticed a massive difference between my OD-3 (huge output boost available) and SD-1 with its pretty weak output. The SD-1's volume needed to be 2/3 o'clock before it gave any volume boost above bypassed guitar level... |
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zentropa
Gold Member
USA
837 Posts |
Posted - 04/26/2008 : 17:55:36
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agreed Leeroy. i've had a few MIT SD-1's that i bought new that always gave a volume loss when i plugged a high output guitar into em. however, just got a ~86 MIJ SD-1 that gives a pretty good boost without having to be maxed out.
Dr. Bob:
i'm guessing that aspect is what varies amongst pedals in situations like the OD-3 vs. SD-1?
i'm curious on something else as well...
i've noticed that many boss pedals that were released in the '95-2001 range seem to have some noise-gate like properties when the distortion/gain is cranked low on them. is this also somewhat related or is it something completely different?
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boss distortions and volume levels....?
