Shiftline A+ Flex Preamp

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The A+ Flex is a tube bass preamplifier aimed at players who prefer the classic East Coast sound.

Here at Shift Line, we've always been particularly fascinated with bass-focused devices. Our product lineup includes the Olympic preamp with its "California sound", so the introduction of the East Coast-style Flex preamp was just a matter of time. We're extremely happy to introduce the new device, as the Flex can significantly expand your sound palette.

The A+ Flex is a fully analog preamp based on the 12AX7 tube. The device allows for soft compression and characterful harmonic saturation while also giving you control over your instrument's tonal balance and volume. The Flex has three outputs (main, balanced and THRU) allowing you to set up multiple independent signal chains. Additionally, you can use the device as a drive pedal or toneshaper due to its bypass switch.

Comes with original box, stickers and power supply.

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The A+ Flex is a tube bass preamplifier aimed at players who prefer the classic East Coast sound.

Here at Shift Line, we've always been particularly fascinated with bass-focused devices. Our product lineup includes the Olympic preamp with its "California sound", so the introduction of the East Coast-style Flex preamp was just a matter of time. We're extremely happy to introduce the new device, as the Flex can significantly expand your sound palette.

The A+ Flex is a fully analog preamp based on the 12AX7 tube. The device allows for soft compression and characterful harmonic saturation while also giving you control over your instrument's tonal balance and volume. The Flex has three outputs (main, balanced and THRU) allowing you to set up multiple independent signal chains. Additionally, you can use the device as a drive pedal or toneshaper due to its bypass switch.

Comes with original box, stickers and power supply.

The A+ Flex is a tube bass preamplifier aimed at players who prefer the classic East Coast sound.

Here at Shift Line, we've always been particularly fascinated with bass-focused devices. Our product lineup includes the Olympic preamp with its "California sound", so the introduction of the East Coast-style Flex preamp was just a matter of time. We're extremely happy to introduce the new device, as the Flex can significantly expand your sound palette.

The A+ Flex is a fully analog preamp based on the 12AX7 tube. The device allows for soft compression and characterful harmonic saturation while also giving you control over your instrument's tonal balance and volume. The Flex has three outputs (main, balanced and THRU) allowing you to set up multiple independent signal chains. Additionally, you can use the device as a drive pedal or toneshaper due to its bypass switch.

Comes with original box, stickers and power supply.