Description
Schilke X4 S/n 65870 Comes with non original Yamaha Case and Bach 7C Mouthpiece
Here is a high-impact sales listing tailored for the discerning buyers on HornTrader.com:
1974 Schilke X4 Bb Trumpet (S/N 65870) – Custom Bob Reeves Valve Alignment
You find these on the web running for around $4225 buy this one for hundred less!
The Ultimate Commercial Powerhouse—Optimized for Maximum Efficiency!
Up for grabs at HornTrader is a spectacular, vintage 1974 Schilke X4 Bb trumpet (Serial Number 65870) from a highly desirable era of Renold Schilke’s legendary craftsmanship. If you are looking for a massive, room-filling sound with absolutely zero resistance, this is your horn.
🎺 The Setup: Massive Bore, Unmatched Resonance
The X4 is the kingpin of Schilke’s extra-large bore line. It features a commanding .468-inch XL bore paired with an XL copper bell. This combination delivers an incredibly free, open “blow” and a rich, uniform resonance that stays laser-focused across all registers. It sings in a big band, cuts through commercial mixes, and offers a broad, warm palette for jazz solo work.
⚙️ The Upgrade: Bob Reeves Precision Valve Alignment
What sets this specific X4 apart from any other on the market is a custom, documented Bob Reeves Valve Alignment.
- Stock felts compress and shrink, causing disruptive internal air turbulence.
- This horn has been precision-measured to thousandths of an inch and fitted with proprietary, non-compressible materials.
- The Result: The slotting is incredibly locked-in, the upper register speaks with total ease, and the articulation is lightning-fast.
On an extra-large bore horn, a Reeves alignment is a game-changer—it transforms a great vintage horn into a perfectly optimized high-performance machine.
🔍 Condition & Playability
- Year: 1974
- Bore: Extra-Large (.468″)
- Bell: XL Copper
- Valves: Fast, smooth, and perfectly aligned by Bob Reeves Brass. Excellent compression.
- Playability: An absolute monster. Free-blowing, efficient, and packs a serious punch.
The Schilke X4 Bb trumpet with Serial Number 65870 is a premium, vintage professional instrument built in 1974. This specific horn has been significantly upgraded with a precision Bob Reeves Valve Alignment, a modification that optimizes airflow and performance.
Instrument Overview
- The Model (Schilke X4): The X4 is the kingpin of Schilke’s B & X series. It features an extra-large bore (.468-inch) and a large XL copper bell. It is highly celebrated for providing an incredibly free “blow” and massive, uniform resonance across all registers.
- The Era (1974): According to historic Schilke Serial Number Records, serial numbers falling between 6294 and 6923 were manufactured in 1974. This represents a highly desirable era of Renold Schilke’s traditional craftsmanship.
The Bob Reeves Valve Alignment Upgrade
Stock trumpet valves rely on standard felts that compress, shrink, or expand over time, causing the internal ports of the valve to misalign with the outer tubing casings. [6, 7]
The custom Bob Reeves Alignment Process fundamentally alters how this horn plays: [1]
- Precision Measurement: The valves are optically or mechanically measured to calculate the exact top and bottom stroke alignments down to thousandths of an inch. [1]
- Permanent Materials: Standard felts are replaced with proprietary, non-compressible pads and shims. This permanently locks the vertical alignment into place. [7]
- Performance Impact: Owners who take their horns to Bob Reeves Brass report immediate improvements in core slotting, a more effortless upper register, and cleaner articulation. [3]
On an extra-large bore horn like the Schilke X4, even a minor valve misalignment creates disruptive air turbulence. Combining the inherently open design of the X4 with a Bob Reeves alignment yields an exceptionally efficient, free-blowing commercial and jazz powerhouse. On the secondary market, a vintage 1970s Schilke featuring a documented Reeves alignment commands a premium from players seeking a perfectly optimized, “no resistance” setup.










