# Vandoren Black Diamond BD4 Bb Clarinet Mouthpiece

The Vandoren Black Diamond BD4 is a Bb clarinet mouthpiece made from rubber. Its listing describes a deep, full sound, ease of response and articulation, and suitability for intermediate players, but these are manufacturer claims rather than verified performance results.

- [Original product page](https://aussiedealscout.com/product/vandoren-black-diamond-bd4-bb-clarinet-mouthpiece)
- [View offer](https://aussiedealscout.com/visit/vandoren-black-diamond-bd4-bb-clarinet-mouthpiece)
- Market: AU
- Language: en-AU
- Currency: AUD
- Brand: Vandoren
- Model: Black Diamond BD4
- Category: Books, Music & Hobbies > Musical Instruments
- Price: 219.80 AUD
- Previous price: 299.00 AUD
- Discount: 26%
- Price checked: 2026-11-12T20:23:03.455Z
- Rating: 4.5 / 5
- Reviews: 54

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- For Bb clarinet, with a rubber body and polished finish according to the listing.
- The maker describes a deep, full sound, flexibility, and ease of response and articulation.
- The listing identifies the BD4 as a choice for intermediate players.

## Pros

- Designed for Bb clarinet, with the instrument key stated explicitly.
- The listing specifies a medium-length facing and tip opening, useful details for comparing mouthpiece setups.

## Specifications

### Identity
- Brand: Vandoren
- Model: Black Diamond BD4
- Instrument key: B Flat
- Colour: Black
### Dimensions and weight
- Dimensions listed: 12.7 x 5.1 x 5.1 centimetres
- Weight listed: 0.05 Kilograms
### Material and finish
- Material listed: Rubber
- Finish: Polished
### Mouthpiece details
- Facing length: moyenne long
- Tip opening: 115.5 mm

## Before you buy

- The listing’s tip-opening value is given as 115.5 mm. Treat this as the listed figure, not a verified measurement, and confirm it with the seller or manufacturer if it affects your choice.

## In the box

- Mouthpiece (Included)

## A good fit for

- Bb clarinet players considering the Black Diamond BD4, especially intermediate players as described by the manufacturer.
- Buyers comparing mouthpiece material, facing length and tip-opening details.

## Less suited to

- Players using an instrument other than Bb clarinet.
- Buyers who need independently confirmed acoustic performance or dimensions.

## Customer feedback

Aggregate ratings lean positive, with most ratings in the five-star category, but the distribution also includes lower ratings. Without review text, the reasons behind the ratings are unknown. The figures cannot confirm the listed sound, response or fit, so players should judge those claims against their own setup and preferences.

## Frequently asked questions

### Which clarinet is the BD4 mouthpiece for?
The listing specifies the instrument key as B Flat, meaning Bb clarinet.
### What material is listed?
The listing identifies the mouthpiece material as Rubber.
### What does the listing say about its sound and response?
It describes a deep, full sound and ease of response and articulation. These are manufacturer claims, not independently verified performance results.

## Alternative options

- [Vandoren BD5 Bb Black Diamond Clarinet Mouthpiece](https://aussiedealscout.com/visit/vandoren-black-diamond-bd4-bb-clarinet-mouthpiece)
- [Bandolen Vandoren Bb Clarinet Mouthpiece, Black Diamond Ebonite "High Density" \(HD\) \[CM1004HD\] BD4 HD](https://aussiedealscout.com/visit/vandoren-black-diamond-bd4-bb-clarinet-mouthpiece)
- [Vandoren CR1935 V12 Bb Flat Clarinet Reeds Box of 10, Strength 3.5](https://aussiedealscout.com/visit/vandoren-black-diamond-bd4-bb-clarinet-mouthpiece)
- [Vandoren 5RV Lyre BB Flat Clarinet Mouthpiece, Black](https://aussiedealscout.com/visit/vandoren-black-diamond-bd4-bb-clarinet-mouthpiece)

## Add-ons

- [Vandoren Optimum Ligature and Plastic Cap for Bb Clarinet, Silver Plated](https://aussiedealscout.com/visit/vandoren-black-diamond-bd4-bb-clarinet-mouthpiece)

## Images

![Vandoren Black Diamond BD4 Bb Clarinet Mouthpiece — 1](https://aussiedealscout.com/i/1UnLXUDj46vASpaWb6mbbpjlJeNsHGAaHoxohoG5Xoq_qfYoBb-yjonWxFXK3txn1ZWWSrcncJD1TeO8Ua0gKVK6VKiYAedrcPsMSYtEBCZGMFjmye4oOYq-.jpg)

![Vandoren Black Diamond BD4 Bb Clarinet Mouthpiece — 2](https://aussiedealscout.com/i/58-Ofwjz9Y_evKwMtCt7mWFTWfGyd1_deduXRBLqsvp2bvutnxBGODycisKUqcuPXawBTLaMcJzvnA6KT8jxJfrzzCshYMeDZroaafPobECCCe7sTns8gPv-.jpg)