What is it?
Ibanez PH5 Phaser from the Soundtank series. Made in taiwan around 1996.
I’ll admit it. I love phasers. Don’t use them much (or at all) on my standard pedal board, but i always have a couple of differently voiced ones with me when i’m in studio. Some phasers are bad, while some can really improve your tone. This one sinks easily into the latter category. Opening this puppy up shows oldschool acidy corners on the traces, which always make me feel warm and fuzzy.
As i couldn’t find a reasonable schematic floating around, i’m going to assume couple of things by just looking at the component side of the board. To me this looks like a four stage design with JRC1458s acting as LFOs and single TL022 taking care of the mixing. Some folks on forums were talking about this being quite close to the PT9, which may very well be true. If you get a chance to read the schematic for this, the phasing JFET biasing should not be overlooked. Forum folks say that it’s unconventional.
With just three controls, this is quite versatile phaser. Speed and Depth act as they should and the Feedback control can take this thing in to space. Bad swithing, as is natural for the series, but simply swapping it makes this run happily again. I do have couple of other phasers in my collection, but it seems that i take this one with me a lot.
How does it sound?
Soft and powerful. From slow and mild to fast, vibe-like and swirly wild. Despite the near-standard Phase90-style circuitry, this is versatile phaser that sounds quite natural. Biasing sounds on point and accurate as there are no “broken” parts on the phasing sweep. Really nice sounding design which makes this one of the best sounding phaser tools i know.