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Lehle Sunday Driver SW II Buffer and Booster Pedal , $269.99 - Add to Cart Skip to Product Information

Lehle Sunday Driver SW II Buffer and Booster Pedal

Switchable Class A Signal Buffer/Preamp/DI with +18dB Boost
Item ID: SunDriverSWII
Lehle Sunday Driver SW II Buffer and Booster Pedal
Available Soon!

More of this item is on the way from Lehle. Order today to reserve yours now, and we'll ship it as soon as it's available. Estimated October 13, 2026

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Lehle Sunday Driver SW II Buffer and Booster Pedal
Available Soon!

More of this item is on the way from Lehle. Order today to reserve yours now, and we'll ship it as soon as it's available. Estimated October 13, 2026

Studio-clean Buffer/Booster for Acoustic and Electric Instruments

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Our Product Research Team

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The latest version of Lehle’s overbuilt, switchable buffer-booster is cleaner, faster, and more versatile than ever! Whether you’re searching for a studio-quality clean front end for your acoustic guitar or upright bass, or you just want a bulletproof method for driving long stage cables from your guitar to your amp without tone loss, the Lehle compact Sunday Driver SW II comes highly recommended by players at Sweetwater. An astounding 130dB of dynamic range ensures your peaks and articulations don’t get lost in translation. As its name implies, this pedal is great for playing out on Saturdays and pulling in on Sundays, giving you two input impedance options and up to +18dB of additional gain for matching your guitar to an amp or driving an acoustic/keyboard directly into a soundboard. Switchable bypass modes (buffered or true bypass) suit the Lehle Sunday Driver SW II to any performance setting you’re likely to encounter.

Hear your instrument come alive

You know what a drag a full pedalboard can put on the signal that finally gets to your amp. In a perfect world, your guitar’s signal would be just as strong and vibrant coming out of that last pedal as it is when you plug straight into your amp. Well, here’s an elegant solution that really works. Place Lehle’s Sunday Driver SW II between your pedals and your amp, choose the Driver setting, and prepare for tonal bliss — no matter how many stompboxes you’re running through. Using long cable runs? Use the Sunday Driver SW II to maintain your signal integrity. Your sound will be livelier, fuller, and more dynamic.

Not just for the stage

The Sunday Driver SW II isn’t simply a buffer box that restores the life of your tone. It’s also an excellent recording preamp — especially if you’re using guitar-modeling plug-ins inside your DAW. If you want to boost your guitar’s signal, just select the Sunday setting. You get warmth, punch, and detail plus up to +18dB of clean gain. It’s the perfect way to dial in your guitar’s signal for the stage or the studio.

Lehle Sunday Driver SW II Features:

  • Buffer (Driver) and booster (Sunday) functionality from a single pedal
  • Tough, compact metal chassis
  • 130dB of dynamic range
  • Adjustable +18dB boost
  • Great for multiple-pedal setups and long cable runs
  • A clean front end for acoustic guitars, upright bass, and keyboard instruments
  • Switchable buffered/true bypass switching
  • Balanced output is perfect for driving a soundboard or recorder

Warranty Info

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.