SKU: 92314119063

Bach K3491B Megatone 1B Cornet Mouthpiece in Silver Plate

Sale price$71.10 Regular price$79.00
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Description

Bach K3491B Megatone 1B Cornet Mouthpiece in Silver PlateBach K3491B 1B Megatone Cornet Mouthpiece Overview The Bach K3491B 1B Megatone Cornet Mouthpiece is a silver plated cornet mouthpiece built with more than double the mass of standard Bach models to emphasize a darker, warmer core and added projection control for jazz and symphonic playing. Bach K3491B 1B Megatone Cornet Mouthpiece Specifications Instrument: Cornet mouthpiece Series: Megatone Cup Size: 1B Cup Depth: Medium Deep Cup Diameter: 17. 00 mm

Bach K3491B 1B Megatone Cornet Mouthpiece Overview

The Bach K3491B 1B Megatone Cornet Mouthpiece is a silver-plated cornet mouthpiece built with more than double the mass of standard Bach models to emphasize a darker, warmer core and added projection control for jazz and symphonic playing.

Bach K3491B 1B Megatone Cornet Mouthpiece Specifications

  • Instrument: Cornet mouthpiece
  • Series: Megatone
  • Cup Size: 1B
  • Cup Depth: Medium Deep
  • Cup Diameter: 17.00 mm
  • Rim Shape: Medium Wide
  • Throat: Slightly larger than standard for reduced resistance
  • Finish: Silver plate

Condition & Setup

Brand new in the original manufacturer’s packaging

Who the K3491B Cornet Mouthpiece Is For

The Bach K3491B is a Megatone-series cornet mouthpiece designed for players who want a darker sound, a warmer feel, and lower resistance than many standard-mass mouthpieces. With its medium deep 1B cup and medium-wide rim, it suits cornetists looking for a stable, supportive rim contour while maintaining flexibility across dynamic ranges.

What distinguishes the Megatone design is the added mass and a slightly larger throat, which together can reduce perceived resistance and support a broader, more powerful tonal center. This makes the K3491B a practical choice for jazz and symphonic settings where a darker color and stronger fundamental are preferred.

Common Questions About The Bach K3491B

What does “Megatone” change compared to a standard Bach mouthpiece?

Megatone mouthpieces use more than double the mass of standard models and a slightly larger throat, which many players experience as a darker tone, less resistance, and a warmer, more powerful sound.

Is the Bach K3491B 1B suitable for professional use?

Yes. The K3491B is a professional-grade Bach cornet mouthpiece specification commonly chosen by serious jazz and symphonic players who want a darker core sound and a more open feel.

What are the key measurements for the K3491B 1B?

It has a 17.00 mm cup diameter, a medium deep cup, and a medium-wide rim shape, with a slightly larger throat designed to reduce resistance.

We are proud to be an authorized Bach dealer

Shipping Notes
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Exchange/Return Notes
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SKU: 92314119063

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A
Verified Purchase
al thompson
Charlottesville, US
★★★★★ 5
I use on my 2012 GL450
Size: Pack of 1
I use on my 2012 GL450 very pleased.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
J
Verified Purchase
Jeff
Carnegie, US
★★★★★ 5
Top Quality Filter
Size: Pack of 1
I always go with Mann Filters, Trust me, all filters are not equal and these are one of the best you can buy
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Reviewed in the United States on February 24, 2026
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Verified Purchase
A regular Joe
Natrona Heights, US
★★★★★ 5
Nice Filter Wrench for my Volvo V70XC!
Size: 86mm x 16
I was needing a filter wrench for my 2001 Volvo V70XC and couldn't find anything that fit from the local auto parts stores. Not knowing what to expect, I took a chance on this one since most of the reviews were 5 star and the price was exceptional. When I received it, I was quite pleased with the construction and finish. I have a brand new oil filter housing for my Volvo (since the one currently on my car is chewed up from the former owner using slip-jaw pliers or something on it) and the fit is perfect! I have worked as a mechanic my whole life (aircraft & automotive), and spent a couple of years as a technician at an automotive dealership and I can say that the tool looks like it is designed for heavy-duty use. The stamped steel housing is thicker than those found in local auto parts stores and the drive adapter has a thick arc welded bead along the inside of the tool. So, it appears to be made to hold up to some fairly heavy torque. Although the product description states that it is 1/2", the drive adapter is actually made for direct attachment to a 3/8" drive. Perhaps this error stems from the fact that they offer a much larger wrench (118-131mm) and this is a more accurate description of their other offerings. The 3/8" drive adapter works perfectly and a 21mm socket fits nicely on the external hex. Fits with SAE sizes are a mixed bag, though. I was able to attach a 13/16" 12-pt. box-end wrench, but not the opposing open-end. A similarly sized 13/16" 6-pt. socket was extremely tight, so I wouldn't recommend this size and would just go with the 21mm if you had to use the external hex. Otherwise, just use the 3/8" drive adapter for easiest use of this tool. The adapter also incorporates ball detents on all four sides of the internal 3/8" drive, so your ratchet or extension won't easily fall off while in use. Since this tool is made for oil filter removal & installation, I'm sure that it will deliver as promised. I'll post an update after my next oil change and I get a chance to use it and install the new filter housing I have.
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Reviewed in the United States on January 25, 2014
C
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Charles Szatkowski
Chelsea, US
★★★★★ 5
Makes the job easy
Size: 88.5mm x 16
Worked well for removing and installing the oil filter housing.
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Reviewed in the United States on April 17, 2026
L
Verified Purchase
Lynn Carbin
Grantham, US
★★★★★ 5
Great tool
Size: 88.5mm x 16
Fit perfectly. Great tool. Made changing oil fast and easy .
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Reviewed in the United States on November 28, 2025

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