PEX B&C 21DS115 21" Professional Neodymium Subwoofer P14769797PEX-294-6030 https://cdnimages.opentip.com/full/PEX/PEX-294-6030.jpg B&C 21DS115 21" Professional Neodymium Subwoofer Manufacturer Part Number: 21DS115B&C designed the 21DS115 21\" high output subwoofer to produce more output and lower distortion than any other comparably priced driver. With high excursion, incredible efficiency, and excellent power handling, this driver has true earth shaking output capability.Key Features: 99 dB efficiency to ensure high output even with modest amplificationDouble silicone spider keeps excursion linear even beyond rated XmaxNeodymium magnet allows a very high motor strength without excess weight4.5\" four layer CCA voice coil allows high power handling and BlAluminum shorting ring help control the voice coil for lower distortionOverview: B&C 21DS115 21\" Professional Neodymium Subwoofer 8 OhmB&C\'s 21DS115 21\" subwoofer is the next evolution in high output subwoofer design. Using a new, longer, four layer aluminum voice coil to produce more energy in the gap, higher sensitivity, lower distortion, and better overall performance. The 21DS115 features a 36 mm long, 4.5\" diameter (116mm) copper clad aluminum wire voice coil. With a 1,700watt AES power rating, 99 dB sensitivity, and over 15 mm of linear excursion, this high energy subwoofer is a significant step forward from similar models in the B&C range, even approaching the performance of their 6\" voice coil alternatives.Specification: Product DetailsBrandB&C SpeakersModel21DS115Part Number294-6030UPC848864050614Unit of MeasureEachWeight37.4Product SpecificationsNominal Diameter21\"Bolt Circle Diameter20.7Power Handling (RMS)1700 WattsPower Handling (MAX)3400 WattsImpedance8ΩFrequency Response30 to 1,000HzSensitivity99dB 2.83V/1mVoice Coil Diameter4.5\"Thiele-Small ParametersResonant Frequency (Fs)30HzDC Resistance (Re)5.1ΩVoice Coil Inductance (Le)4.6mHMechanical Q (Qms)10Electromagnetic Q (Qes)0.24Total Q (Qts)0.23Compliance Equivalent Volume (Vas)9.5ft³Mechanical Compliance of Suspension (Cms)0.0692mm/NBL Product (BL)40.8T·mDiaphragm Mass Inc. Airload (Mms)407gMaximum Linear Excursion (Xmax)15mmSurface Area of Cone (Sd)1680cm²Materials of ConstructionCone MaterialTreated PaperSurround MaterialClothVoice Coil Wire MaterialCCAVoice Coil FormerFiberglassBasket / Frame MaterialCast AluminumMagnet MaterialNeodymiumMounting InformationOverall Outside Diameter21.54\"Baffle Cutout Diameter20.0\"Depth10.04\"# Mounting Holes8Parts Express Staff Recommended Enclosure VolumeVented Volume6.5ft³Vented F332HzManuals & Resources: B&C Speakers 21DS115 SpecificationsB&C Speakers 21DS115 Technical DrawingB&C Speakers Manufacturer Warranty 14769797 848864050614 45.2400lbs 0.00 0.00 0.00

B&C Speakers

899.77 2025-08-07 Only 2 left In Stock B&C 21DS115 21" Professional Neodymium Subwoofer

B&C 21DS115 21" Professional Neodymium Subwoofer 8 Ohm

Brand B&C Speakers

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UPC: 848864050614

SKU: PEX-294-6032-P

Price:

$899.77Free shipping on orders over $129 on select PEX- items. Details

Size:

4 OHM
8 Ohm

Quantity:

Only 2 left In Stock

4 OHM	- + Out of stock$899.77
8 OHM	- + Stock: 2 $899.77

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Pricing Note

Free Shipping Promotion: Buy more items from the same series, product code beginning with PEX-, and you can get free shipping for an order of over $129.00 consisting of only PEX- series products.

Product Description

Manufacturer Part Number: 21DS115

B&C designed the 21DS115 21" high output subwoofer to produce more output and lower distortion than any other comparably priced driver. With high excursion, incredible efficiency, and excellent power handling, this driver has true earth shaking output capability.

Key Features:

99 dB efficiency to ensure high output even with modest amplification
Double silicone spider keeps excursion linear even beyond rated Xmax
Neodymium magnet allows a very high motor strength without excess weight
4.5" four layer CCA voice coil allows high power handling and Bl
Aluminum shorting ring help control the voice coil for lower distortion

Overview:
B&C 21DS115 21" Professional Neodymium Subwoofer 8 Ohm

B&C's 21DS115 21" subwoofer is the next evolution in high output subwoofer design. Using a new, longer, four layer aluminum voice coil to produce more energy in the gap, higher sensitivity, lower distortion, and better overall performance. The 21DS115 features a 36 mm long, 4.5" diameter (116mm) copper clad aluminum wire voice coil. With a 1,700watt AES power rating, 99 dB sensitivity, and over 15 mm of linear excursion, this high energy subwoofer is a significant step forward from similar models in the B&C range, even approaching the performance of their 6" voice coil alternatives.

Specification:

Product Details

Brand

B&C Speakers

Model

21DS115

Part Number

294-6030

UPC

848864050614

Unit of Measure

Each

Weight

37.4

Product Specifications

Nominal Diameter

21"

Bolt Circle Diameter

20.7

Power Handling (RMS)

1700 Watts

Power Handling (MAX)

3400 Watts

Impedance

8Ω

Frequency Response

30 to 1,000Hz

Sensitivity

99dB 2.83V/1m

Voice Coil Diameter

4.5"

Thiele-Small Parameters

Resonant Frequency (Fs)

30Hz

DC Resistance (Re)

5.1Ω

Voice Coil Inductance (Le)

4.6mH

Mechanical Q (Qms)

Electromagnetic Q (Qes)

0.24

Total Q (Qts)

0.23

Compliance Equivalent Volume (Vas)

9.5ft³

Mechanical Compliance of Suspension (Cms)

0.0692mm/N

BL Product (BL)

40.8T·m

Diaphragm Mass Inc. Airload (Mms)

407g

Maximum Linear Excursion (Xmax)

15mm

Surface Area of Cone (Sd)

1680cm²

Materials of Construction

Cone Material

Treated Paper

Surround Material

Cloth

Voice Coil Wire Material

CCA

Voice Coil Former

Fiberglass

Basket / Frame Material

Cast Aluminum

Magnet Material

Neodymium

Mounting Information

Overall Outside Diameter

21.54"

Baffle Cutout Diameter

20.0"

Depth

10.04"

# Mounting Holes

Parts Express Staff Recommended Enclosure Volume

Vented Volume

6.5ft³

Vented F3

32Hz

Manuals & Resources:

Attention CA Residents: Prop 65 Warning

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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