Like the subject says: how close can I get with the OTS? Suggested settings? Is the C-Lator a important ingredient of the sound?
Thanks!

You need a c-lator.

You also have to mod your amp.

Dropping string of the power supply:
1st resistor: 2k7

Resistor after v2b coupling cap: 150k
Snubbers: both 250pF(although 270pF will also be fine)
The cap that's on the mid switch: 390pF (silver mica)
Bright cap on the master is 68pF(silver mica)
Presence cap is 2,2uF

Mind this: This configuration is unusable without a c-lator/dumblelator.

Personally I also find it useful to make the NFB resistor 10K instead of 4,7k. This way I don't have to crank the presence control. My amp responds better to it.

Thanks for your suggestions! These mods, mentioned: what will they do with the sound? How will my amp be different? Why are they no good without a dumbleator?

Do you prefer Kleinulator or C-laotor, or is either ok?


PS. I have a 2x12 cab with Vintage Celestions for my OTS.
Thanks.

C- Lator is better as it is valve (tube) based and will add a bit of compression / harmonic interest when driven.


In my view you need to have the G12-65H for 'the' Robben sound...there again which Robben sound are you looking for?

My OTS is pretty much standard spec, I use a Fuchs Verbrator in the loop, drive a 1 x G12 - 65 cab and set the knobs as:

Gain = 5
Treble = 3.5
Mid = 4
Bass = 3.5
Level = 4
Ratio = 6
Master = whatever I can get away with.....4 sounds really good
Presence = 3 (I prefer this to be low for OD sounds although I admit that clean sounds better when set at 7 / 8
Internal gain trim set at around 10 O'Clock (measures 27 K Ohm on a DMM in circuit)

I use a Richie Kotzen Telecaster that has a Single Coil sized Humbucker in the Bridge (Di Marzio Chopper T). I like to back the guitar volume off a bit.

I'm not particularly going for the Robben Ford sound but it's pretty damn close to my ears, there again the RF sound that I like is the more recent "Truth" era rather than the heavier tones e.g. Blue Line.

It's been said here before that the Robben Sound is as much to do with 'touch' rather than amp settings - vary your picking attack from very light to heavy so that you control the OD level in this way. It works for me - I find that I don't like too much OD on this amp - it just doesn't work, the sound goes too mushy and I attribute that to the Skyliner tonestack. When I do want a more 'Marshall OD Tone" I kick in the PAB & Mid Boost and then back the gain off on my guitar by 75%.

That's a nice sound. If you're happy with it, you probably don't want to change a thing.
If you want exactly the same circuit as RF used the last 2 cd's, follow the mods I wrote a few posts earlier, use a dumblelator/clator and g12-65 speakers.

jätta bra!!! 

Very nice clean and OD sounds. Is that a 50w or 100w amp?

Sounds great.

Miket bra min ven! himelska tone!
Nice band.

my thoughts......regardless of the mods i have found that the pickups in your guitar will influence the amp the most.....especially humbuckers.....i have found that PAF like humbuckers are the best to achieve the robben tone....although my yamaha SG also gets close too. ... albeit the yamaha pups have quite high output.

i would suggest using some nice alnico pickups in your guitar and the rest is up to you and your hands.  PAF's are great for this amp as they have clarity and match the amp well when it comes to the touch sensitivity from clean to dirty just by changing your touch and picking.

RF has many great tones on his albums and i guess like all of us... he changes his settings for each song and type of guitar depending on what is required.