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The Backun Q-Series Bass Clarinet is a professional, orchestral-ready bass clarinet built on Backun’s Q-Series platform for stability, even response, and precise intonation across the full range. This model pairs a cocobolo body with a low-C range for confident sub-register playing, and it features modern key ergonomics and gold-plated posts for a refined feel and added corrosion resistance. Designed to project a resonant core in ensemble or solo use, it is a strong choice for players stepping up from school or intermediate instruments as well as working musicians seeking a dependable modern workhorse.
Backun Q-Series Bass Clarinet Specifications
- Model: Backun Q-Series Bass Clarinet
- Key: Bb
- Range: Low C
- Body Wood: Cocobolo
- Serial number: QLC0440
- Neck & Bell: Nickel Silver
- Keywork: Nickel-silver mechanism (silver-finish) with gold-plated posts
- Register System: Double-vent register mechanism
- Pads: Premium waterproof pads
- Floor Peg: Included, adjustable
- Finish: Silver-finish keywork with gold-plated posts
- Case: Backpack Case with straps
- Accessories: Cork grease, cleaning cloth, floor peg (no mouthpiece)
Condition & Setup
Refurbished instrument in superb condition. This instrument has been professionally inspected, set up, and play-tested by our woodwind team to verify key regulation, pad seal, and consistent response from the low register through the upper clarion.
Who the Q-Series Bass Clarinet Is For
The Backun Q-Series Bass Clarinet is a professional Bb bass clarinet with a low-C extension designed for players who need reliable low-register authority, balanced intonation, and modern ergonomics. Its Q-Series bore and tone hole geometry are built to keep the scale even and centered, with throat tones that speak reliably and an upper register that stays clear without becoming brittle.
This model is well suited to orchestral, wind ensemble, chamber, and pit work where consistent pitch and clean mechanism matter. The cocobolo body supports a rich, focused core with refined overtones and quick articulation, making it a practical step-up from intermediate instruments and a strong primary instrument for serious students and working professionals.
Common Questions About the Backun Q-Series
Is the Backun Q-Series Bass Clarinet suitable for professional orchestral and wind band use?
Yes. The Q-Series platform is built for evenness and stability across the full range with precise intonation and a resonant core that projects well in ensemble settings, making it appropriate for professional orchestral, wind band, and pit work.
What does “range to Low C” mean on a bass clarinet?
“Range to Low C” indicates the instrument includes a low-C extension, allowing it to play one semitone below low D. This supports standard orchestral and contemporary repertoire that requires the lowest written pitches.
How does a cocobolo body affect sound and response compared to other woods?
Cocobolo is commonly chosen for a rich, focused tone with quick articulation. On the Q-Series bass clarinet, it helps deliver a centered sound with refined overtones while maintaining clarity and projection.
We are proud to be an authorized Backun dealer
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
Backun Model BCLBBQC-C-SKG Q-Series Bass Clarinet in Cocobolo
Backun Q-Series Bass Clarinet Overview
The Backun Q-Series Bass Clarinet is a professional, orchestral-ready bass clarinet built on Backun’s Q-Series platform for stability, even response, and precise intonation across the full range. This model pairs a cocobolo body with a low-C range for confident sub-register playing, and it features modern key ergonomics and gold-plated posts for a refined feel and added corrosion resistance. Designed to project a resonant core in ensemble or solo use, it is a strong choice for players stepping up from school or intermediate instruments as well as working musicians seeking a dependable modern workhorse.
Backun Q-Series Bass Clarinet Specifications
- Model: Backun Q-Series Bass Clarinet
- Key: Bb
- Range: Low C
- Body Wood: Cocobolo
- Serial number: QLC0440
- Neck & Bell: Nickel Silver
- Keywork: Nickel-silver mechanism (silver-finish) with gold-plated posts
- Register System: Double-vent register mechanism
- Pads: Premium waterproof pads
- Floor Peg: Included, adjustable
- Finish: Silver-finish keywork with gold-plated posts
- Case: Backpack Case with straps
- Accessories: Cork grease, cleaning cloth, floor peg (no mouthpiece)
Condition & Setup
Refurbished instrument in superb condition. This instrument has been professionally inspected, set up, and play-tested by our woodwind team to verify key regulation, pad seal, and consistent response from the low register through the upper clarion.
Who the Q-Series Bass Clarinet Is For
The Backun Q-Series Bass Clarinet is a professional Bb bass clarinet with a low-C extension designed for players who need reliable low-register authority, balanced intonation, and modern ergonomics. Its Q-Series bore and tone hole geometry are built to keep the scale even and centered, with throat tones that speak reliably and an upper register that stays clear without becoming brittle.
This model is well suited to orchestral, wind ensemble, chamber, and pit work where consistent pitch and clean mechanism matter. The cocobolo body supports a rich, focused core with refined overtones and quick articulation, making it a practical step-up from intermediate instruments and a strong primary instrument for serious students and working professionals.
Common Questions About the Backun Q-Series
Is the Backun Q-Series Bass Clarinet suitable for professional orchestral and wind band use?
Yes. The Q-Series platform is built for evenness and stability across the full range with precise intonation and a resonant core that projects well in ensemble settings, making it appropriate for professional orchestral, wind band, and pit work.
What does “range to Low C” mean on a bass clarinet?
“Range to Low C” indicates the instrument includes a low-C extension, allowing it to play one semitone below low D. This supports standard orchestral and contemporary repertoire that requires the lowest written pitches.
How does a cocobolo body affect sound and response compared to other woods?
Cocobolo is commonly chosen for a rich, focused tone with quick articulation. On the Q-Series bass clarinet, it helps deliver a centered sound with refined overtones while maintaining clarity and projection.
We are proud to be an authorized Backun dealer
Pairs well with
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99

Backun Model BCLBBQC-C-SKG Q-Series Bass Clarinet in Cocobolo
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders valued over $99 ship via FedEx 2-Day within the U.S. and via DHL internationally. A physical address (no P.O. Boxes) and signature are required. Smaller accessories ship via USPS (2–5 day service) and do not require a signature if valued under $99. Please see our FAQ for additional details.
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Return Policy
We offer an unconditional 30-day return policy to ensure you’re completely satisfied. If you’re unhappy for any reason, return the item for a full refund or full exchange credit (reeds and other consumables are non-returnable once opened). Every instrument we sell is guaranteed to be free of mechanical defects—if an issue arises, contact us and we’ll either reimburse a local repair or provide a prepaid return label for repair, exchange, or refund. If you simply change your mind, you may still return the item for a full refund, but return shipping costs are the customer’s responsibility unless free returns were purchased through Redo at checkout. Please see our FAQ for additional details.
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Shop Warranty:
Brand new items are covered by the full manufacturer’s warranty unless otherwise noted (see the individual maker for details). Open box, used, and vintage items include a two-year warranty serviced by our in-house repair shop, and we guarantee every instrument will be free of mechanical defects. Warranty coverage does not include damage from accident, misuse, negligence, improper operation, unauthorized alterations or removed serial numbers, normal wear and routine maintenance, environmental damage (including perspiration, corrosion, or extreme temperature and humidity), lacquer or plating wear, or consumable parts such as springs, pads, and felts. Please see our FAQ for additional details.
