SKU: 70828683556
bass tube pedal

bass tube pedal Shift Line A+ Flex

Sale price$18.28 Regular price$20.31
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Shipping Estimate
USA
  • USA
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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12

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Description

bass tube pedal Shift Line A+ FlexTax & Duty Free Fast Free Shipping Free Returns $375 is your absolute final total here for the Shift Line Flex pedal, analog tube bass preamp, with power supply included! The Shift Line A+ Flex pedal is a tube bass preamp aimed at players who prefer the classic East Coast sound. At Shift Line, they've always been particularly fascinated with bass focused devices. Their product lineup includes the Olympic preamp with its "California sound", so the

Tax & Duty Free - Fast Free Shipping - Free Returns...
$375 is your absolute final/total here for the Shift Line Flex pedal, analog tube bass preamp, with power supply included!

The Shift Line A+ Flex pedal is a tube bass preamp aimed at players who prefer the classic East Coast sound. At Shift Line, they've always been particularly fascinated with bass-focused devices. Their 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. Shift Line is extremely happy with their Flex preamp pedal, as the Flex can significantly expand your sound palette.



The A+ Flex pedal is a fully analog preamp based on the 12AX7 tube. Flex allows for soft compression and characterful harmonic saturation, while also giving you control over your instrument's tonal balance and volume. Flex has 3 outputs... (main, balanced, and THRU) allowing you to set up multiple independent signal chains. Additionally, you can use Flex as a drive pedal or tone shaper, due to its bypass switch.



KEY FEATURES:

  • Fully fledged tube preamp with high-voltage power.

  • Fully analog signal path.

  • Wide-range input volume control.

  • Control over saturation character within tube stages.

  • Active EQ section with detents in neutral positions.

  • Harmonic saturation for any broadband signal.

  • Drive/tone shaper pedal capability.

  • Active tube DI Box with high-quality balanced output and Ground Lift function.

  • Small, lightweight, and pedalboard-friendly aluminium enclosure with top-mounted jacks.


Here are many more details about the Shift Line Flex Pedal.

POWER SUPPLY (included):
This pedal does not use batteries, and its power supply is included with your purchase.

WARRANTY:
Comes with Shift Line's 3 year warranty for all electronic components, and 1 year for components subject to mechanical impact (potentiometers, footswitches, switches, jacks), when used with a proper power supply.

SHIPPING:
Ships fast! Usually same day, with Free UPS Shipping in U.S. with tracking (1 biz day processing, 1-3 biz days transit time usually). 1 and 2-Day guaranteed shipping are also available.

Our added value, when purchased here at coolguitarshop.us:

  • Best Total Price: $375 is your absolute final/total here, with Shopify Secure Checkout.
  • Tax Free & Duty Free!
  • Fast Free Shipping in U.S.
  • No Risk: Try it on your own rig for 30 days. Don't love it? Return it for a full refund... no hassles, no costs. (We'll send you a prepaid return label link.)
  • Rock-solid customer service, 365 days a year.

Imagine your own version of the classic "East Coast" bass sound, with the Shift Line Flex pedal, analog tube bass preamp. Handmade in St. Petersburg, Russia!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70828683556

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Grma4m&m
Los Angeles, US
★★★★★ 5
They’re fantastic!!!!
Size: X-Large, Color: Multicoloured E-(5-pack)
My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
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Reviewed in the United States on April 25, 2026
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Adia
Louisville, US
★★★★★ 5
My favorite underwear
Size: Medium, Color: Multicoloured C (5-pack)
Super comfortable!! They are soft and breathable. No pinching, no shifting, and relatively invisible in skirts, pants, and loose dresses. True to size. Excellent quality, holds up well. Only thing is that the wording on the front does come off after a few washes, so you have to differentiate the front from the back of the underwear by how high the seam comes up. I almost exclusively wear this underwear now, I love it!
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Reviewed in the United States on April 30, 2026
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Musicbookfan
Natrona Heights, US
★★★★★ 5
Incredible Comfort
Size: Large, Color: Multicoloured F (5-pack)
Amazing; I’ll be ordering more. Super soft, lightweight, smooth under clothes, incredible comfort! Best underwear! I ordered these because I’m tired of underwear lines when wearing biker shorts/leggings. Other boy shorts were too long or the bottom hem too thick and both of those issues left lines around my upper leg. THESE are *just right* - perfect length and fit. No panty lines on close fitting pants, comfortable under other pants and dresses, great with jumpsuits, and fit well under slip shorts with dresses. NOTE: These take longer to dry, than similar clothes, in the dryer. No shrinking though. SIZE: I ordered these in size L and they fit perfectly. A little snug when first on but they loosened up. For reference I’m 5’4” tall, about 175#, carry my weight in my hips and backside,wear size L sweats/pajamas/loose pants, size 12 jeans.
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Reviewed in the United States on September 23, 2025
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Kathy M Gasperin
San Leandro, US
★★★★★ 5
Full coverage and full comfort
Size: XX-Large, Color: Multicoloured C (5-pack)
These boyshort underwear are a dream. They’re very soft, very stretchy, and very comfortable. They do not shrink when they’re washed. They’re heavy enough to make you feel like you have something covering you for discretion, but light enough to wear under any type of fabric. I have wide hips and I’m older so I don’t have a tight perky butt anymore. Most underwear tend to either ride up on me or become very uncomfortable. These stay where you put them. And they come all the way up to your waist so that there is no panty line whatsoever. The waist line is soft and comfortably. It does not dig in. They do not ride up and drive you crazy they stay where you put them. I would recommend them to anyone young or old. I have tried so many different styles and materials to find underwear that’s actually comfortable. These are the absolute best I have tried in five years. I just threw all the rest of them out.
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Reviewed in the United States on April 8, 2026
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Janet R Geisler
Battle Creek, US
★★★★★ 4
Bamboo is an amazing fabric
Size: Large, Color: Multicoloured I (5-pack)
Comfy and soft . I’ve never worn boy shorts before so takes adjusting to. Legs roll sliding pants up but easy to adjust and smooth before zipping up then all day comfort. When I wear skirts or shorts they are perfect for that! I use to wear bike pants under skirts that don’t have to anymore. I like that they don’t creep up like regular underwear. I’m a new fan of bamboo fabric and bought briefs in bamboo as well.
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Reviewed in the United States on May 9, 2026

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