The DigiTech RP150 is a modeling guitar processor: a floor multi-effects unit that puts amps, stompboxes and effects in one box. DigiTech describes it as a processor that gives you your favorite core tones as well as helps you invent new ones, with over 70 stompbox, amp, effect and cabinet models arranged in tone and effect libraries that are easy to dial up1. It sits in the middle of DigiTech's long-running RP range of multi-effects pedals, below models like the RP250 and RP350.
DigiTech lists the RP150 as a past product: it is no longer in production, but the maker says it may still be available through local and online retailers1.
What the RP150 does
The RP150's core is DigiTech's AudioDNA2 DSP processor, with a 24-bit A/D/A converter running at a 44.1 kHz sample rate1. From the model library you can choose from over 70 stompboxes, amps, effects and cabinets, and the unit can run up to 11 effects at once1. That covers the ground of separate overdrive, delay, chorus and reverb pedals in a single floor unit.
Preset memory is 50 user presets, numbered 1 to 50, plus 50 factory presets, numbered 51 to 00, so you can overwrite half the memory with your own sounds and keep the factory patches1. MusicRadar's review describes the same setup as 50 preset patches and 50 user patches, with the two footswitches used to navigate through them2.
For practicing and writing, the RP150 includes a drum machine with 60 patterns1.
Controls and connections
MusicRadar's review highlights the tone library knob, a set of 30 guitar amp settings designed for specific musical styles, which is how the unit makes its model library quick to dial through2. On the rear panel, dual left and right outputs allow you to choose either mono or stereo operation2. Unlike the step-up models in the range, the RP150 has no built-in expression pedal: it has an input for an external expression pedal instead2.
"But the built-in expression pedal on the RP250 is really indispensable if you want to get the best out of the unit."
That is the main practical difference between the RP150 and the RP250: on the RP150 you would add an expression pedal of your own to control parameters with your foot2.
USB and computer use
The RP150 connects to a computer over a USB Type B port that supports USB 1.1 Full Speed at 12 Mbps bandwidth, and DigiTech notes it is USB 2.0 compatible1. Combined with the 24-bit converter, that makes the unit usable as a recording interface as well as a effects processor1.
What reviewers said
MusicRadar's review is positive on value and sound. On the effects, the reviewer found the reverbs particularly nice, describing them as quite subtle and smooth2. The overall verdict came down to price against performance:
"There's nothing quite as good as the RP150 for the price."
The same review credits the unit with excellent features, sound quality and price2.
Videos
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Tai Yang
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Questions
Is the DigiTech RP150 still in production?
No. DigiTech lists the RP150 as a past product, meaning it is no longer in production, though the maker notes it may still be available through local and online retailers. DigiTech's later RP-series floor processors, such as the RP360 and RP360 XP announced in 2014, took over in the range.
How many presets does the DigiTech RP150 have?
The RP150 holds 100 presets in total: 50 user presets, numbered 1 to 50, that you can overwrite with your own sounds, and 50 factory presets, numbered 51 to 00, that ship with the unit. MusicRadar's review describes the same arrangement as 50 preset patches and 50 user patches, with the two footswitches used to navigate through them.
Does the RP150 have a built-in expression pedal?
No. The RP150 has an input for an external expression pedal rather than a built-in one. MusicRadar's review of the range pointed out the difference, noting that the built-in expression pedal on the RP250 is really indispensable if you want to get the best out of the unit.
Can the RP150 connect to a computer by USB?
Yes. The RP150 has a USB Type B port that supports USB 1.1 Full Speed at 12 Mbps bandwidth, and DigiTech notes it is USB 2.0 compatible. Audio conversion is handled by a 24-bit A/D/A converter running at a 44.1 kHz sample rate.
What power supply does the DigiTech RP150 use?
DigiTech specifies the PS0913B power supply for the RP150. The unit is a past product, so the supply comes with used or remaining new stock rather than being sold alongside a current production run.
Does the RP150 have a drum machine?
Yes. The RP150 includes a built-in drum machine with 60 patterns, which is useful for practicing against a beat instead of a metronome or for sketching ideas at a fixed tempo.
Sources (2)
- RP150 - DigiTech, DigiTech, 2024-07-29
- DigiTech RP150 review, MusicRadar, 2007-12-10
