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Description
boss expression pedal Mission Engineering SP1-RB Switching Expression Pedal for Roland/Boss – Chicago Music ExchangeThe SP1 RB can be connected to BOSS products with expression and switch inputs such as the GT1000 Effects Processors, ES and MS Switching Systems, and Katana amplifiers. The linear pedal output connects to the EXP input and provides precise and natural response with no dead spots. The SP1 RB expression pedal also has an integrated momentary toe switch that connects to one of the CTL inputs on your BOSS device for switching functions. The expression
The SP1-RB can be connected to BOSS products with expression and switch inputs such as the GT1000 Effects Processors, ES and MS Switching Systems, and Katana amplifiers.The linear pedal output connects to the EXP input and provides precise and natural response with no dead spots.
The SP1-RB expression pedal also has an integrated momentary toe switch that connects to one of the CTL inputs on your BOSS device for switching functions.
The expression pedal functions with most Roland and BOSS expression pedal inputs. The toe switch function is supported on products that also have a momentary switch input such as the GT1000 Core, ES-5, and ES-8 and MS-3, and GA-FC footswitch. The switch output may be left unconnected if this function is not required.
Dimensions: 10″ x 4″ x 3″
Weight: 3.2lb
Potentiometer: 10K Ohm Linear TRS
Switch: Momentary TS
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4.8 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Very Small
These are tiny! Just perfect for my little dogs but one was lost within the first few minutes so I had to order another. I'm not so sure how safe it is for the fur children to chew on non-edible, non-digestible plastics but they seem to really like them.
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Reviewed in the United States on September 28, 2025
★★★★★ 5
A Hit with Both My Puppy and Older Dog!
I bought the Nylabone Moderate Chew FlexiChew Bone in the peanut butter and bacon flavor for my new puppy, and he absolutely loves them! What’s even better is that my other dog is just as obsessed with them, so it's been a hit with both.
The size is perfect for my tiny puppy, and the flavor keeps them both engaged for a long time. These bones are durable enough to last, even with moderate chewing, and they help satisfy their natural chewing instincts.
If you’re looking for a great chew toy for both puppies and small dogs, I highly recommend these Nylabones. They’re a definite favorite in our household!
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Reviewed in the United States on October 11, 2024
★★★★★ 5
Dog loves them.
Size: Medium, Style: Beef
They make excellent toys that hold up to a bulldog that chews. He loves these toys.
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Reviewed in the United States on March 31, 2026
★★★★★ 5
My dogs love them
Size: Large, Style: Peanut Butter
One of the few toys my pit bulls can't break. They absolutely love these toys and play chase with them. Usually, they can break toys in less than 5 minutes, but not these.
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Reviewed in the United States on February 25, 2026
★★★★★ 5
Very durable and dont hurt teeth
Size: Large, Style: Peanut Butter
Dogs love - all 3 dogs have been playing with them for last week non stop. One bone is a little small for large dogs which is only reason its 4 stars
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Reviewed in the United States on February 20, 2026