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Discussion Starter #1
Hi guys, does anyone here use one of these? i am curious if its actually 2 good pedals in one, or if they did a half baked job making neither really good. I have been looking at other reviews but most places always have nothing but good reviews (Sweetwater etc).

I am really hoping that it does both very well
Thanks
 

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I've seen the reviews and the demos. You can use it as a 45 or a 90.
 

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One of the virtues of the original Phase 45 is that it used a network of components around each of the two FETs that would reduce the risk of distortion. And because setting up a feedback path in a 2-stage phaser is rather pointless, it had none. So, on two counts the Phase 45 was diferent from its bigger brother: only one notch and no emphasis.

Its certainly not impossible for MXR to have built in all the necessary switching to convert the pedal from a true P90 to a true P45, but I doubt they did so. I don't know; I just doubt, largely because the 2N5952 transistors traditionally used for each pedal seem to only be available in full thru-hole form, rather than tinier surface-mount (the Behringer P90 clone uses almost all surface-mount parts except for the 2N5952s).

It's also the case that the script and block issues have different sweep widths and feedback. The later issue has a bit more feedback and a slightly wider sweep. In short, where the P45 and earlier script model is a little better suited to faster speeds, the later issue P90 is a little better suited to slower sweeps.

So, the push button switch that selects between 45 and 90 might be able to switch the LED and select between 2 and 4 stages. What the same type of DPDT button switches (which is what those switches are; I have a parts drawer full of them.) can accomplish with respect to converting from script to block, I don't know. It could switch the sweep width OR feedback, and LED, but not all 3 at once without electronic assistance and more parts stuffed into pedal.

I have no schematic or inside knowledge, so I'm speculating, but my educated guess is that the pedal does a partial conversion from script to block, or from P45 to P90. That doesn't make it a bad pedal in any sense. But if one is expecting EVERYTHING about a P45 and a script P90 and a block P90, I'm just not seeingit as feasible in a package using that size and those switches.
 

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Discussion Starter #4
Thanks. I have a feeling I would be disappointed with it, expecting both to be as close to the seventies originals. Now I need to Google to understand the tech stuff you posted. LOL
 

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sounds pretty good to me for the price they are asking

The Phase 90 is an old-school four-stage FET phaser that's one of the most instantly-recognizible sounds in the world of guitar, sounding full, rich and resonant. The Phase 45 is a two-stage subdued version that players have been using for faux-Leslie and Uni-Vibe tones for decades, and many players never turn it off from day one. On the other side of the enclosure, you get a choice between "Script" and non-Script versions of each phaser. 4 phasers in a mini pedal

 

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Discussion Starter #7
Hahahaaha, thanks Mhammer but that might take a long time. My electronics knowledge is limited to spelling it properly. I also figured that at that price it would probably just do an OK job. Probably better for me is to find both in the used market.
Thanks for the link, those guys always do a pretty good job on demos. I just find that no one ever really criticizes any pedal if it is crap. I guess since no one would send them more to demo. It gets hard sometimes to get a real feel for it.
 
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