Detail 01
Large shank
Fits large-bore tenor and bass trombone receivers only. Check your horn before ordering; a small-shank slide will not accept it.
Product detailSKU #1274228081234
Denis WickDW6880 HeavyTop Series Trombone Mouthpiece in Silver 4AL
1/2
Independent shopping perspective
The Korena take
Large-shank 4AL trombone mouthpiece in silver with a deep 26mm cup. For tenor players who want a big, open sound and a solid low register.
Strong match
Who this is for
- Large-bore tenor trombone in orchestral or big band sections
- Players who need weight and depth in the low register
- Anyone chasing a broader sound than a stock mouthpiece gives
Consider the trade-offs
When to look elsewhere
- Small-shank horns — the taper simply will not seat
- Lead players who need a bright, compact edge up high
- Students still building air support for a deep cup
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
26 mm cup diameter
Roomy for a tenor rim. Supports a broad sound and the low register, and asks for steady air to fill.
Detail 03
Deep cup
Darkens and widens the tone. Low notes speak fuller; the top loses some brightness and takes more effort.
Detail 04
7.38 mm throat
Wide. Air moves freely for volume and body, so it feels open rather than resistant when you push.
Detail 05
6.72 mm rim width
Wide contact patch. Spreads pressure for endurance on long sets, at the cost of some flexibility between registers.
Detail 06
HeavyTop construction
Extra mass around the rim and cup. Slows response slightly and adds density and core to the sound.
Final check
Know before you order
- 01Mouthpiece only. No pouch or case included
- 02Confirm your slide takes a large shank, not small
- 03Coming off a shallow cup, expect the high register to feel different
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit my trombone?
Only if it takes a large shank, which typically means a large-bore tenor or a bass trombone. Small-bore and most student horns use a small shank and will not accept it.
02How does 4AL compare to 5AL?
The 4AL is wider at 26mm versus 25.73mm, with a deeper cup and a bigger throat. Fuller low end and a broader sound; the 5AL sits easier up high.
03What does HeavyTop change?
Added mass at the rim and cup gives the tone more density and core. Attacks feel a touch slower and the sound holds together better at volume.
04Is this good for jazz lead playing?
Not really. The deep cup and wide throat favor breadth and low-register weight. For lead work, a shallower cup with a V-type backbore cuts better.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Silver
8 detailsOther
- 6bl
- Large shank; 25.40mm cup diameter; 6.26mm rim width; 6.66mm throat; V-type backbore. Excellent high register with a crisp clear tone.
- 5al
- Large shank; 25.73mm cup diameter; 6.64mm rim width; 7.30mm throat; Barrel backbore. Full sound with resonant high register. Good choice for orchestral work.
- 6bs
- Small shank; 25.40mm cup diameter; 6.26mm rin width; 6.66mm throat; V-type backbore. Brilliant high register with increased endurance and intontation.
- 0al
- Large shank; 27.42mm cup diameter; 6.09mm rim width; 7.45mm throat; Barrel backbore. Clean low register with accurate attacks.
- 1al
- Large shank; 27.11mm cup diameter; 6.09 rim width; 7.45mm throat; Open backbore. Improved high range and open, free blowing sound.
- 4 5al
- Large shank; 25.85mm cup diameter; 6.80mm rim width; 7.24mm throat; Barrel backbore. Wider rim for improved endurance and comfort with a big, full sound.
- 4al
- Large shank; 26mm cup diameter; 6.72mm rim width; 7.38mm throat; Barrel backbore. Deep cup for a very big, open sound and full low register.
- 5bl
- Large shank; 25.73mm cup diameter; 6.64mm rim width; 6.87mm throat; Medium backbore. Medium-deep cup with a flexible high range. Excellent for principal players.
