Proficient LSB3 39.8" Protege 3-Channel Passive Soundbar

Proficient Audio

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Product Overview

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Brand New PROFICIENT LSB3 39.8" Protege 3-Channel Passive Soundbar with Six 3" Graphite Woofers and Three 1" Silk-Dome Tweeters - Part # LSB3

Use this three-channel passive soundbar with any A/V receiver to build a compact yet powerful home theater system. Features six 3" graphite woofers, three 1" silk dome tweeters and 60 watt (per channel) power handling. The LSB3 has a matte black finish and removable black grille with neo-magnets. Includes a Proficient-designed horizontally adjustable wall-mounting bracket.

Give the Proficient Protege Cabinet Loudspeakers a long listen. We think they might just change your attitude about how things should sound. They’re built not just to be heard, but to be listened to and loved. Just what you would expect from Proficient.

Main Features

  • Six 3" Graphite Woofers
  • Three 1" Silk Dome Tweeters
  • Power Handling: 60 Watts (per channel)
  • Frequency Response: 140Hz – 20kHz
  • Impedance: 6Ω
  • Sensitivity: 88dB 2.83V/1m
  • Cabinet Design: Rounded Corner MDF Cabinets
  • Dimensions (H x W x D): 5-3/16" x 39-13/16" x 2-3/4"
  • 3-Channels


Brand Name Proficient Audio
Manufacturer Proficient Audio Systems
Manufacturer Part Number LSB3
Product Model LSB3
Product Name
LSB3 3-Channel Passive Soundbar
Product Series LS
Product Type Speaker
Impedance 6 Ohm
Impedance (Ohm) 6
Maximum Frequency Response (Hz) 20000
Minimum Frequency Response (Hz) 80
Sensitivity 88 dB
Sensitivity (dB) 88
Tweeter Driver Material Silk Dome
Tweeter Driver Size 1"
Tweeter Driver Size (mm) 25.4
Woofer Driver Material Graphite
Woofer Driver Size 3"
Woofer Driver Size (mm) 76.2
Maximum Frequency Response 20 kHz
Minimum Frequency Response 80 Hz
RMS Output Power 60 W
RMS Output Power (W) 60
Speaker Configuration 3.0
Depth 2.75"
Depth (mm) 69.85
Form Factor Cabinet Mount, Freestanding, In-ceiling, In-wall
Height 5.2"
Height (mm) 131.762
Width 39.8"
Width (mm) 1011.238
Woofer Diameter 3"
Woofer Diameter (mm) 76.2
Country of Origin China
PS: If you need more than the available quantity of the listed item, please inquire with the Seller for additional units availability.
IMPORTANTFor warranty related claims and support (if applicable), customer/buyer to contact manufacturer/Factory Customer Support / Warranty department directly. Please DO NOT contact the Seller. Seller is not responsible for any warranty related claims support or otherwise.
Seller Sale Terms & Conditions:
Returns and Refunds
  • Unless otherwise specified, seller will accept returns within 30 days of the date of receiving item(s).
  • Merchandise must be in original factory condition, and must include all original packaging materials, warranty cards, manuals and accessories. 
  • All damaged, missing, or mistakenly shipped products must be informed to the seller within 48 hours of package delivery.
  • Please contact seller for specific details and instructions BEFORE initiating ANY return of your purchase(s).
  • Obtain RMA# from seller BEFORE making any returns.
Out of Policy Returns 
  • Authorized out of policy returns may be subject to a fee of 15% of return value, or $25, whichever is greater.
  • Unauthorized out of policy returns will be shipped back to the customer collect and result in a $50 charge. Should this shipment be refused by the customer, shipper will accept the product, however no credit shall be issued. 
Any unauthorized returns will not necessarily be re-stocked and/or refunded.
Cancel Orders 
You may request an order be cancelled provided the order has not already been processed and shipped. Please contact seller with your Order ID or customer number to request a change to your order. 
Damaged Shipments 
In cases of external (visible) carton damage, customers should refuse the damaged carton(s) and clearly note the refusal on the carrier delivery receipt. Notify seller within 48 hours of the refusal. Claims for external (visible carton damage) may not be honored when not refused by the customer/end-user at time of receipt. All claims for concealed product damage or shortage must be reported to the seller within 48 hours of receipt. Claims made after 48 hours from receipt date (sell date) may NOT  be honored. Customer should make the product and packaging available for carrier inspection if requested. 
Refused Delivery 
A $50 charge per refused shipment will be charged unless the refusal is based on a shipper error or damaged shipment or per seller sale terms and conditions. 
  • Shipping Details 
    This Seller offers FREE domestic Standard Ground shipping anywhere within mainland USA only. INTERNATIONAL Shipping is offered via eBay Global Shipping program.
    Seller does not ship to P.O. Box, Military, APO, or RR addresses.
    Normal order processing time is up to 2 business days (subject to stock on hand).
    NO order processing or deliveries on weekends or holidays.
    Your shipping information must match your credit card billing information. Seller may cancel any order that does not comply with this notice.
    Orders are shipped by UPS/FedEx Standard Ground Shipping unless buyer wishes to opt for Express Delivery. Shipping costs may vary in such cases. Please contact seller before placing your order and seller will get back to you. Seller reserves the right to use any standard shipping service(s) other than the shipping services mentioned above.
    Transit time may take between 2-7 business days depending on location and depending on the shipping method selected. You will be provided with a tracking number once your order has been shipped.
    Shipment is processed and made only after full payment is successfully received subject to availability of stock.
    Seller is not responsible for any shipping delays that is out of our control nor can give any delivery guarantee such as specified time or date. All shipping dates are estimated from information provided by the carrier and internal processing time.
    Order(s) are processed and shipped within 1-2 business days (pre-ship processing time). If there is a significant delay in shipping your order we will contact you.
    Seller reserves the right to cancel any order due to stock unavailability or information errors including pricing discrepancies. If you require assistance or have any questions, please contact seller.   
For any clarifications, questions or for more info, please contact the Seller. Seller will respond within same business day (as quick as possible).
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