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Bach Apollo 170S43GYR Professional Bb Trumpet – #43GY Bell, Silver Plate, .459" ML Bore

   
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170S43GYR
Sound Character

With its two-material #43GY bell and reversed 6R leadpipe, the Bach Apollo delivers the warmth of gold brass and the snap of the fastest-responding leadpipe Bach makes — a professional voice that rewards players ready to be heard.

Silver Plate 43GY Bell .459" ML Bore Reversed Leadpipe Pro Level

Bach Apollo 170S43GYR Professional Bb Trumpet

A modern professional horn rooted in Vincent Bach's original two-piece bell concept — rebuilt with the same chassis as the 180 Stradivarius and the quickest-responding leadpipe Bach has ever made.

Who This Horn Is Built For

There is a particular kind of trumpet player this instrument was designed for: someone who has moved past the step-up stage, understands what they want from a horn, and is ready to invest in an instrument that will grow with their playing rather than hold it back. The Bach Apollo 170S43GYR sits at a compelling crossroads — it carries the same one-piece machined valve chassis and bore architecture as the revered 180 Stradivarius line, but introduces Bach's first-ever two-piece, two-material bell construction. The result is a voice that is genuinely distinct from anything else in the Bach lineup.

The #43GY bell's gold brass stem paired with a yellow brass flare produces depth and warmth in the lower and middle registers while still throwing a focused, projecting brilliance at the top — a combination that works beautifully whether you are sitting in a concert band, leading a jazz ensemble, or cutting through a brass quintet. The reversed 6R leadpipe makes the horn feel immediate and responsive under the fingers. This is an instrument for the advancing college-level player, the working professional seeking versatility, or the serious performer who wants a professional Bach without the identical look of the Stradivarius.

Key Highlights

  • Two-piece #43GY bell with gold brass stem and yellow brass flare — blends warmth with focused brilliance
  • Same one-piece machined brass valve chassis as the Bach 180 Stradivarius series
  • Reversed 6R leadpipe — the quickest-responding leadpipe Bach produces for fast, agile play
  • .459" medium-large bore balances resistance and tone projection across all registers
  • Silver plate finish for a classic, clean appearance and smooth feel in the hand
  • Two-piece bell annealed using the same processes as the Bach Stradivarius trumpets
  • Lightweight body with brass inner and outer slides and brass Z braces
  • Finger hook design inspired by New York, Mt. Vernon, and Elkhart-era Bach instruments
  • Brass 1st slide hook, finger hook, and 3rd slide ring
  • 3rd slide stop screw for repeatable, precise intonation adjustment
  • Apollo bell engraving — a nod to Vincent Bach's original two-piece design heritage
  • Includes Bach 7C mouthpiece and protective case

Why You'll Love It

The Two-Material Bell

Bach's #43GY bell is the sonic heart of the Apollo. The gold brass stem delivers the richness and tonal depth the alloy is prized for, while the yellow brass flare adds the clarity and projection you need to cut through an ensemble. No single-material bell achieves both in the same way — this two-piece construction is what separates the Apollo from the rest of the 170 lineup.

The Reversed 6R Leadpipe

Bach describes the reversed 6R as the fastest-responding leadpipe they make. For players working on technical passages, clean articulation, or demanding solo and orchestral literature, that responsiveness is immediately noticeable. Air moves through the horn with precision and efficiency, putting more expressive control directly in the player's hands.

Professional-Grade Foundation

Sharing the same valve block and chassis architecture as the 180 Stradivarius means there is no compromise in the mechanical core of this instrument. The one-piece machined valve section delivers consistent, reliable action. Brass Z braces and a lightweight body keep fatigue manageable through long rehearsals and multi-set performances without sacrificing structural integrity.

Great Fit For

  • Advancing students ready to step into their first professional-grade instrument
  • College and university players preparing for auditions and ensemble performance
  • Working professionals who need a versatile horn across classical, jazz, and commercial settings
  • Players seeking a distinctive Bach voice that differs from the standard Stradivarius character
  • Performers who want professional valve action and response without compromise
  • Musicians who play across multiple styles and need a horn that adapts with them

Sound, Feel, and Use Case

The tonal character of the 170S43GYR is defined by that two-material bell. Gold brass adds warmth and complexity in the mid-range that gives long tones and lyrical passages real depth. The yellow brass flare keeps the upper register open and projecting without becoming shrill — a balance that works whether you are playing first-chair orchestral parts, lead in a big band, or navigating the demands of chamber brass. The .459" ML bore creates a feeling of focused resistance that supports both stamina and dynamic control, especially useful for players who move through a wide range of volume levels throughout a performance.

The reversed 6R leadpipe makes the feel of this horn notably snappier and more immediate than a standard leadpipe configuration. Players who have spent time on other professional-level horns will notice the difference in response time right away. The silver plate finish gives the instrument a smooth, cool feel in the hands and a clean, understated appearance that reads as professional on any stage or in any concert hall.

Specifications

Model 170S43GYR
Key Bb
Bore Size .459" (ML)
Bell #43GY — Two-Piece
Bell Material Gold Brass Stem / Yellow Brass Flare
Bell Construction Two-Piece, Bottom Seam, Brass Wire, Standard Weight
Leadpipe 6R Reversed Style
Leadpipe Material Yellow Brass
Valve Section One-Piece Machined Brass
Slides Brass Inner and Outer
Braces Brass Z Braces
1st Slide Brass Hook
3rd Slide Brass Ring with Stop Screw
Finger Hook Nickel, Vintage-Inspired Design
Finish Silver Plate
Includes Bach 7C Mouthpiece, Protective Case

Trumpet players have strong opinions about their horns — and they should. The instrument you put to your face every day shapes how you hear yourself, how you grow, and how much you enjoy the process of getting better. The Apollo 170S43GYR is the kind of horn that tends to stop players mid-warmup, when they realize something about the way it responds or the way it sounds in a room just feels right.

If you are comparing this to other professional-level instruments or trying to figure out whether the two-material bell is the right choice for your playing style, we are genuinely happy to talk through it. These are the conversations we enjoy most. Reach out anytime — call or text us at 814-371-5666.