Bontempo - Tap Tempo for PT2399


Active member

Anyone seen this? I've been eyeing it for away, Electric Canary just listed it for sale a few days ago. Looks to be more promising (and cheaper) than the TapTation because you can calibrate the Bontempo, have seen all over the nets that the TT is notoriously imprecise. Modulation and presets, too!

I ordered a couple of them. I have a few Seabed and other PT2399 PCB's around, whenever they arrive I'll give it a go and report back. Looks very cool!


Well-known member
The lack of filtering on the power line seems like an oversight. You'd want a 47uf+ to gnd on the 5v line coming out the regulator to remove noise that plagues 2399 circuits.

I'm intrigued about the modulation though.


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Got a BonTempo assembled with PedalPCB's Seabed Delay. This thing is very cool! Built in subdivisions, modulation, blinky LED. Super accurate timing wise, which seems to be the common complaint about TapTation (and this is a lot cheaper). Highly recommend this little project to anyone looking to "easily" incorporate tap tempo and other cool stuff into their PT2399 builds!

I put the mod depth knob on the exterior with rate on the inside via the trim pot. As with all PT2399s, it gets a little noisy and distorted at really long delay times but most of range sounds quite nice! You can program it to limit at 600ms delay time which I may do.

Calibrating the digital pot took some time, went the extra step and measured time with my DAW so timing is +/- 1% accurate. I used a scrap enclosure so there are also sorts of extra holes and overall messy. Now to find time to get it into a nicer enclosure and recording a quick demo!

Nice, came across the Bontempo a few days ago but hadn't seen much talk of people who've used it. Gonna maybe get one ordered soon once I've finished the 20 other projects that are on my desk