which MXR Phase 90 to get?

Texx · #1 02-04-2008, 03:06 PM

I´ve heard soundsamples of the MXR Phase 90 on bass and really like it.
Gonna get one. But now there´s this custom shop script model out also. Can anybody tell me how it compare to the standard model?

crapusername · #2 02-04-2008, 06:18 PM

can i suggest the EVH model.
it has the gubbins for both the script model and the block one as well.
a great phaser!

Texx · #3 02-05-2008, 02:38 PM

Quote:

can i suggest the EVH model.
it has the gubbins for both the script model and the block one as well.
a great phaser!

...50$ more and i´m a guy who rather goes with less options...simple...

nobody tried both?

The Lurker · #4 02-06-2008, 06:22 AM

IMO, just get the regular one.

Kenny Allyn · #5 02-06-2008, 06:44 AM

As stated (and I have one) the EVH does both ...

Which sound are you looking for? the Script model is more subtle and the block has a more distinct phase effect.

... Be advised you get some bass cut with the MXRs

Silent Fly · #6 02-06-2008, 08:21 AM

I don't own a MXR Phase 90 but a few months ago I built a clone.

When I finished, I installed a temporary switch to change between script and block (the difference is just a resistor). The sound between the two modes was so minimal that I decided that is wasn’t worth the cost of the switch. I left the phaser in script mode.

If you know someone that has a little bit of experience in electronics, s/he can easily modify a script to block (and vice versa) for you.

Being a clone of the MXR Phase 90, my phaser used to cut some of the lower frequencies. However, it is quite easy to fix the problem. I changed the input and output capacitors and now there is absolutely no low frequency loss.

Sean S · #7 02-06-2008, 02:02 PM

Quote:

Originally Posted by Silent Fly

I don't own a MXR Phase 90 but a few months ago I built a clone.

When I finished, I installed a temporary switch to change between script and block (the difference is just a resistor). The sound between the two modes was so minimal that I decided that is wasn’t worth the cost of the switch. I left the phaser in script mode.

If you know someone that has a little bit of experience in electronics, s/he can easily modify a script to block (and vice versa) for you.

Being a clone of the MXR Phase 90, my phaser used to cut some of the lower frequencies. However, it is quite easy to fix the problem. I changed the input and output capacitors and now there is absolutely no low frequency loss.

Could you elaborate on the capacitor changes? In other words, what are the stock values, and what did you change them for?

Also, isn't the "script mod" just cutting a trace to a resistor?

Silent Fly · #8 02-06-2008, 04:35 PM

Quote:

Originally Posted by Sean S

Could you elaborate on the capacitor changes? In other words, what are the stock values, and what did you change them for?

Also, isn't the "script mod" just cutting a trace to a resistor?

I already described the change here.

C input: from 0.01uF to 0.1uF
C output: from 0.05uF to 0.47uF

To be honest, I don't know if the "script mod" consists in just cutting a trace to a resistor. I have never tried an MXR Phase 90 or seen the internal contruction. However, I saw the schematics and the resistor to disconnect for the change from block to script should be a 22k resistor that connects the non-inverting input (pin 3) of the IC of stage 2 to the output of IC of the stage 4 (pin 6).

If you find the schematics on the net you should see it quite clearly.

small prints: if you damage your phaser it is entirely your responsibilty. ;)

Sean S · #9 02-06-2008, 08:45 PM

Quote:

Originally Posted by Silent Fly

small prints: I you damage your phaser it is entirely your responsibilty.

yesh...i know

Thanks for the info, though; I think I may try that sometime soon.

Silent Fly · #10 02-07-2008, 02:44 AM

typo corrected

RockStarNick · #11 02-07-2008, 08:08 AM

I tried the script mod, and really couldn't hear a damn difference at all.

I will say that the EVH has more headroom than the standard $70 model, so depending on what kind of pickups and electronics you use, that may be worth the extra $50.

the $70 model will get some "crunch" when you really dig into it. It's a cool kind of clipping, but its there.

Jester85 · #12 02-09-2008, 04:21 AM

Sorry for my English, I'm from Russia.

I have phase 90 M-101 with switchable r28 mod. And script phase 90 csp-101.
I can't hear difference between r28 mod and stock phase 90 block logo.
But script phase 90, is much deeper and smoother. phase 90 works good only on high string and sounds artifical for me, so i like to use it with fuzz for synth-type effects. Script phase works good on all strings and sounds good with slow and fast settings. They are totaly different phasers. For me, script phase is the best. (Also when I change battery, i saw "EVH 90" inside the box. Read on harmony central about it. I think, that they use same circuit for the both pedals)