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  • 1/2" SWE Bottom Caps Any Make/Model Trumpet

1/2" SWE Bottom Caps Any Make/Model Trumpet

SKU:
$115.00
95 170 $95.00 - $170.00
Unavailable
per item

SWE Bottom Caps improve efficiency on any trumpet, improving flexibility, slotting, attacks and stability in all registers and at any dynamic level.


Includes: (3) SWE Bottom Caps 


Please call and check on availability before ordering if you require immediate shipment. 




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Includes 3 SWE Bottom Caps to fit most brands and models. Please contact us if you have an unusual instrument request.

Harrelson SWE Bottom Caps are the perfect upgrade to your existing trumpet. Available in several finishes with unlimited custom engraving options. These are the perfect compliment to our SWE Top Caps, Finger Buttons, and HEVS (High Efficiency Valve Stems). Improve efficiency and step up the look of your trumpet at the same time.

how does swe work?

Standing Wave Efficiency (SWE) Technology is a physics-based design method that preserves energy in the sound wave as it travels through a tube or instrument. In a traditional trumpet, energy in the standing wave is transferred into vibration of the resonating wall at the anti-nodes as it travels through the trumpet. The further the wave travels, the more your sound wave energy is transferred into vibration. To make things more complicated, the higher the note on the trumpet the greater number of nodes and anti-nodes. These nodal points vibrate the tubing wall and braces, robbing even more energy from the wave.  A common side-effect of nodal points involves Excessive Vibration Interference (EVI) between fixed points (trumpet braces) separated by vibration-prone material (thin and/or stiff tubing).

EVI is present on all traditional trumpets especially along the leadpipe and bell, which results in interference with the original sound wave. The EVI effect becomes more noticeable in the upper register of any brass instrument. This is due to the greater number of anti-nodes and nearly proportional number of spans measuring EVI. Difficulty in the upper registers of the trumpet is mostly due to excessive vibration and the EVI effect. Reduce the EVI with SWE technology and the upper register will respond and sound much like the low and mid-registers.

High efficiency Harrelson Trumpets retain sound quality and character throughout all four octaves by preserving energy in the sound wave. It is possible to double and triple tongue three octaves on the VPS Summit and Muse series when MBR has been achieved.

Engraving Options

$35.00 - $2,750.00

Custom Engraving - Valvesets, Bracing, Mouthpieces, Receivers, Mod Kits


Harrelson Trumpets uses a high quality fiber laser to engrave your design up to .050" deep with a line width as narrow as .001". Just about anything is possible, so ask and we'll give you an idea of options and pricing with fast turnaround times. Hand written signatures are encouraged. We also offer deep hand carving performed by Jason.

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Yamaha - High Efficiency Valve Stems

$120.00 - $185.00

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Set of 3 Ergonomic Finger Rings

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  • 1 - thumb ring
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Set of 3 Finger Button Tops and Bottoms - Brass

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On Sale

On Sale

MMXX Muse Modular Trumpet - Bb

$11,495.00 $9,495.00

Place your deposit before November 1st, 2023 to qualify for this offer.


Flexible payment plans available as low as $300/month for up to 24 months. Receive your mouthpiece kit immediately, and take delivery of your Muse when balance is paid in full. We are 65% sold out of this model, so they will sell out soon.


You are welcome to pay off your balance early, or keep low monthly payments and make a balloon payment on the balance in month 24.

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SpectraTone BLUE Mouthpiece

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SpectraTone YELLOW Mouthpiece

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*Due to inconsistencies with some manufacturers, we can ONLY offer threaded parts to fit some brands by measuring your existing parts. These include; MAW, ACB, BAC, Del Quadro, Brasspire, Landress, Eastman, John Packer, Thane, and very early period instruments.

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Have questions?

Send an email by clicking the envelope icon to the right. Or call ahead and visit us for an in-person lesson or tour. 303.657.2747

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  • Performance
    • VIP Private Offers
    • Instagram Community
    • SpectraTone
    • Build My Mouthpiece >
      • Intro to Mouthpieces
      • Artist Series >
        • Artist Bodies
        • Artist Rims
    • Mouthpiece Components >
      • Rim Sizes
      • Cup Sizes
      • Throat Sizes
      • Body Sizes
      • Backbore Sizes
      • Nut Sizes
    • Increase Efficiency >
      • Mod Kits
      • Finger Button Options
    • Adjustable Performance
    • Adjustable Peformance Tools
  • Advantage
    • Clinics & Tours
    • The Harrelson Story
    • Technology
    • News >
      • Jason's Blog >
        • Jason Harrelson
      • Jen's Blog
      • Company History
      • Lessons Link >
        • Teacher Information
      • Get Social
    • Clients >
      • Our Clients >
        • Client Features
      • Trumpet Components >
        • Leadpipes & Bells
        • Tuning Slides & Bell Crooks
        • Receivers
        • Bottom Cap options
        • Water Keys
      • Contact Us
      • Shipping
      • Instrument Registry
      • Acclimation
      • Maintenance
    • Trumpet Momentum >
      • Trumpet Momentum Level 1 >
        • TM 1 - Blog
        • TM 1 - Assessments
        • TM 1 - Exercises
      • Trumpet Momentum Level 2 >
        • TM 2 - Blog
        • TM 2 - Assessments
        • TM 2 - Exercises
        • TM 2 - Beta Testing
      • Trumpet Momentum Level 3 >
        • TM 3 - Blog
        • TM 3 - Assessments
        • TM 3 - Exercises
        • TM 3 - Beta Testing
        • TM 3 - Case Studies
        • TM 3 - Regional Clinics
    • We have Your size
    • 100% Guarantee
  • Store
  • Instruments
    • Rumors & Dreams
    • Model Comparison
    • Buy A Harrelson
    • Muse Modular MMXX
    • 2023 VPS Summit G-Series
    • "X" Series
    • Trumpet Gallery