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starr36
Platinum Member
Canada
1172 Posts |
 Posted - 09/23/2006 : 01:18:11
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is this any good? its in my pawnshop find of the week if it is. if it is no good, which is the best op-amp for the SD-1.
thx.
I have discovered this pedal makes a very very nice boost after a mij DS-1.
EDIT I Found the february thread on this topic.
SN 426900, so it is nothing special.
ALSO, like a DS-1, methinks this pedal stokes with tone way down dist below Noon. I like it! AND it is not very harsh either. |
Edited by - starr36 on 09/23/2006 01:30:40 |
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bossarea
Forum Admin
United Kingdom
3652 Posts |
Posted - 09/23/2006 : 01:37:24
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Yep, all SD-1s have the 4558 opamp. There's D and DD versions but they should sound identical.
It is quite trebly so tone might benefit from being adjusted down a bit. |
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starr36
Platinum Member
Canada
1172 Posts |
Posted - 09/23/2006 : 18:26:35
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SD-1 literature says it has the "same" assymetrical dist circuit as OD-1; why then do many complain about the harshness of this pedal??
And Yes, Tone control way down makes this SD-1 sing very nicely, I might add!
Also, yellow paint is on the bottom of the edge of the case on this one too, another one of those production irregularities.
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Edited by - starr36 on 09/23/2006 18:48:40 |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 09/24/2006 : 03:58:22
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Hi Starr36
Is that a Mesa Boogie I spy under your SD-1?
I recognized the Knobs & Graphic, which Boogie is it?
I have a faulty SD-1 comming in the mail, I will keep you guys informed
as to what fault-s I find.
It was part of 2 faulty pedals, the other one being an Ibanez DL10 digital delay. |
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lightburst
Silver Member
Germany
158 Posts |
Posted - 09/24/2006 : 12:15:08
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quote:
Originally posted by starr36
SD-1 literature says it has the "same" assymetrical dist circuit as OD-1; why then do many complain about the harshness of this pedal??
Hi starr36.
Thatīs because the asymetrical clipping is just one side of the story. Adding the tone control and a few other components with different values are responsible for that difference in sound. How much difference will depend on the OD-1 version you compare the SD-1 with.
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StratoSphere
Double Platinum Member
Canada
2232 Posts |
Posted - 09/24/2006 : 20:18:41
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| like most Boss distortions, as long as you dont go too far past 12 oclock, it shouldnt sound too harsh. |
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starr36
Platinum Member
Canada
1172 Posts |
Posted - 09/24/2006 : 21:08:15
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quote:
Originally posted by Dr. Bob
... Hi Starr36
Is that a Mesa Boogie I spy under your SD-1?
WELCOME TO THE FORUM, DR.Bob! and yes it's a MKIV shorthead. |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 09/25/2006 : 14:39:33
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Thanks for the info Starr36
One of my less frequently used Amps is a Mesa Boogie 50-50 (early series).
It really did fall off the back of a truck, actually it was a Roadie van
it hit the road pretty hard & bent the front panel rack mount ears.
Took out a couple of 6L6's, I bought it cheap & restored it, would you
believe that I panel beat the rack ear straight, & replaced the 6L6's,
cleaned out the road dirt and the unit fired up as good as the day it was made.
Sorry guys I know this is the Boss pedals area
I bought the unit for $175 Aust plus a couple mesa output valves.
One of the best bargins & have come across.
I am still waiting for the faulty SD-1 |
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starr36
Platinum Member
Canada
1172 Posts |
Posted - 10/28/2006 : 05:44:43
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Dr. B ... that amp repair must have had you smiling bigger than
Did you ever heat the dead SD-1? is it fixed?
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 10/28/2006 : 16:58:01
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quote:
Originally posted by starr36
Dr. B ... that amp repair must have had you smiling bigger than
Did you ever heat the dead SD-1? is it fixed?
Hi Starr36
Yep I'm still singing with that amp --- it's too loud for most of the smaller club gigs I do now & then.
I built a 63 Blackface Pre-Amp for it, as it is only a power amp.
The Blackface was off an old hand drawn circuit I found some years ago.
I added a gain boost circuit & foot switch socket, to the first valve stage on the 12AX7, I had some old Mullard NOS 12AX's that needed some place where they could sing.
I swapped it out for a very old Hitach 12AX7, and to my surprise, the Hitachi valve sounded much better.
I don't come across anyone talking about how good Hitachi 12AX's sound
which I suppose is because their aren't that many of them still around.
I can imagine that you are VERY happy with your Mesa Boogie,
I tend to play my rebult Fender 75 valve Combo amp these days.
Cos the Mesa is a rack unit & way too loud, the Fender 75 is a combo,
freaking heavy though, for an old bugger like me.
But I suppose that's what roadies are for.
And YES it took me about 5 mins to fix the SD-1, the Level pot had worked its way loose & the hot end (with the audio on it) had shorted to the metal case - shorting all the audio out to ground.
I rotated the pot back to its original position, and I hate to use a pun, but "Bob's your uncle"
In this case it was probably Dr. Bob's your uncle. 
I posted a thread about it, I think it was in the mods section or maybe the new pedals section, probably the mods section.
I like the sound of this pedal Its a MIT, but then I have never heard a MIJ.
Is your a MIJ or MIT?
Mine is very beat up, like it's done 10 rounds in a cement mixer, you can still see the yellow paint & writing on it. it came from an EX PA & sound gear hire place in Sydney Australia, It must have some wonderful stories it could tell.
Beer - Smoke - Grass Clippings - Loud Music
Wild Women (always got to have Wild Women  )
Road Dirt & Late Nights.
I don't have a DS-1 yet to try & use it as a boost.
Regards |
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John_WSDC
Copper Member
5 Posts |
Posted - 03/28/2007 : 22:05:20
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Your comments are very helpful. Thanks!
Post edited by Bossarea: script code removed
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bossarea
Forum Admin
United Kingdom
3652 Posts |
Posted - 03/28/2007 : 23:21:02
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| Looks like we have a new type of spamming attempt here. John_WSDC has been barred for attempting to post links to spam pages and for posting using spoofed IP addresses. |
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ChristoMephisto
Platinum Member
Canada
1288 Posts |
Posted - 03/29/2007 : 00:50:19
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Theres a couple replacments for the rc4558DD
you could use a rc4558P (found in ts-808's), brown burr op2134, op275
almost any dual op-amp should do, just check the pin-outs
i found the 4558DD gritty compared to the 4558P version.
don't have an opinion on the op2134, as i mis-ordered and got a op314 a single
sign up with indyguitarist and they send you a link to free sd-ds mods
another link is http://www.geocities.com/overdrivespider/SD1/sd1.htm
good luck
guess old spam would be 'spam,spam,spam,spam,bacon,eggs,n' spam'
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 03/29/2007 : 09:17:10
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The spams's off!
Regards Dr. Bob |
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SD-1 JRC4558DD
