Uploaded July 2023 | Updated September 2026, 2 days ago

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In this video, I unbox and test out the Shift Line Flex, a tube bass preamplifier made in Russia. I share some thoughts and observations and try it out in a song.

Shift Line A+ Flex :
shift-line.com/flex

Check out 5 Watt World: @fivewattworld

My Bass Course:
philipconradmusic.teachable.com/p/four-string-fundamentals

Bass Survival Guide (For GUITAR PLAYERS Who Want to Lean Bass):
rhettshullguitarcourses.com/p/blues-survival-guide1?coupon_code=PL50&product_id=4663530

FREE Practice Tracks:
philipconradmusic.teachable.com/courses

Sign Up For My Email List:
philipscheidt.activehosted.com/f/1

Sick Merch:
philipconradmusic.squarespace.com/merch

Gear I Love to Use (affiliate links that help the channel):

JMJ Bass:
sweetwater.sjv.io/c/4178498/937020/11319?prodsku=MustBaJMJFDB&u=https%3A%2F%2Fwww.sweetwater.com%2Fstore%2Fdetail%2FMustBaJMJFDB--fender-justin-meldal-johnsen-road-worn-mustang-bass-faded-daphne-blue&intsrc=PUI2_7338

Picks:
sweetwater.sjv.io/c/4178498/937020/11319?prodsku=475P300&u=https%3A%2F%2Fwww.sweetwater.com%2Fstore%2Fdetail%2F475P300--dunlop-475p300-big-stubby-guitar-picks-3mm-6-pack&intsrc=PUI2_7338

Spring Reverb:
sweetwater.sjv.io/c/4178498/937020/11319?prodsku=FlintV2&u=https%3A%2F%2Fwww.sweetwater.com%2Fstore%2Fdetail%2FFlintV2--strymon-flint-tremolo-and-reverb-pedal-v2&intsrc=PUI2_7338

Recording Interface:
sweetwater.sjv.io/c/4178498/937020/11319?prodsku=ApolloTDmk2HE&u=https%3A%2F%2Fwww.sweetwater.com%2Fstore%2Fdetail%2FApolloTDmk2HE--universal-audio-apollo-twin-mkii-duo-heritage-edition-10x6-thunderbolt-audio-interface-with-uad-dsp&intsrc=PUI2_7338

Fuzz:
sweetwater.sjv.io/c/4178498/937020/11319?prodsku=LOFBender&u=https%3A%2F%2Fwww.sweetwater.com%2Fstore%2Fdetail%2FLOFBender--jhs-bender-fuzz-pedal&intsrc=PUI2_7338

Power Supply:
sweetwater.sjv.io/c/4178498/937020/11319?prodsku=Zuma&u=https%3A%2F%2Fwww.sweetwater.com%2Fstore%2Fdetail%2FZuma--strymon-zuma-9-output-guitar-pedal-power-supply&intsrc=PUI2_7338