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Shift Line A+ Flex Tube Bass Preamplifier Effect Pedal - Used

Marsoni M251S
Sale price$140.00
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Get it in 3 business days with 1 day shipping. Friday, May 29
Shift Line A+ Flex Tube Bass Preamplifier Effect Pedal - UsedThe A+ Flex Tube Bass Preamplifer is a preamp with an actual tube inside. It's fully analog. It features a gain control, bass and treble controls, as well as 3 way switches for "top" and "deep". Wide range input volume control. The bass and treble controls are active EQ with detents for neutral positions. The pedal has an output, a thru, and a balanced out so it can be used as a DI. It also has a ground lift. There is velcro on the back. Free of any
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 1350 reviews
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MIKE PERKS
Battle Creek, US
★★★★★ 5
Amazon makes it so easy
Perfect fit, exact replacement part.
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Reviewed in the United States on May 13, 2026
T
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TMC
Fort Morgan, US
★★★★★ 5
Reliable and well priced
Works very well in my Cub Cadet XT1
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Reviewed in the United States on May 20, 2026
J
Verified Purchase
Jim Chapman
Whiting, US
★★★★★ 5
Installed them works good.
Value for the money.
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Reviewed in the United States on March 10, 2026
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Verified Purchase
Big Earl
Lake Worth, US
★★★★★ 5
Good Plug if you need this model
These are the OEM for Kohler 7000 series I did service on. They needed to be gapped but that’s every spark plug.
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Reviewed in the United States on May 19, 2026
K
Verified Purchase
Kandace Dewberry
Dallas, US
★★★★★ 4
Plugs
They are sparkling plugs. They spark. Very slow on delivery.
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Reviewed in the United States on March 30, 2026

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