Real owners rate these about evenly: 69% of 182 Boss GT-1 owners recommend it, vs 73% of 52 for the Ibanez TS9 Tube Screamer.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“I love my TS9 that I've had since the 90s, but I have an EQ pedal after it, which has made all the difference.”— @DonaldMerand on YouTube
“This really is the greatest distortion pedal I’ve ever owned.”— @TheDCGuitar13 on YouTube
“Only thing I’d change is the TS for a DS1 or a Boss Super Distortion or an MXR distortion. I was never a fan of the Tube Screamer.”— _1JackMove on Reddit
Real owners rate these about evenly: 69% of 182 Boss GT-1 owners recommend it, vs 73% of 52 for the Ibanez TS9 Tube Screamer.
Owners point the Boss GT-1 at budget players wanting many effects in one box, and home practicers who want zero pedal clutter.
Owners point the Ibanez TS9 Tube Screamer at tube amp owners wanting to push their amp, and blues and classic-rock players.
The most-cited downside of the Boss GT-1 is a vocal minority find the tone harsh, lifeless, or sub-par, describing it as unnatural or struggling on higher frequencies compared to real amps and pedals. For the Ibanez TS9 Tube Screamer, it's mid-heavy voicing that cuts low-end and suits some styles more than others.