Alto SXA18P 18" Vented Line Array Subwoofer

Alto SXA18P 18" Vented Line Array Subwoofer

Alto SXA18P 18" Vented Line Array Subwoofer

No Longer Available

Enter to win a $1000 B&H Gift Card!

Share a favorite product for chances to win one of four $1000 B&H Gift Cards! 1 new winner announced every Monday starting Nov 13th!
Limit 1 entry per day; Come back every day to increase your chance of winning!

Be sure to mention #BHWishList when you share!

Share on Twitter

First winner announced on Nov 13th

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B & H $1,000.00 Giveaway (the "Giveaway" or "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about November 6, 2017 until on or about December 4, 2017 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share any product found on the B&H website on Facebook or Twitter via the dedicated links therein ( and mention #BHWishList; or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment) (optional) to: B&H $1,000.00 Giveaway, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total four (4) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $1,000.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize at the email address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the email account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An email account holder shall mean the natural person assigned to such email account by the internet access or online service provider or other organization responsible for assigning email addresses for the domain associated with such email account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $1,000.00 Giveaway Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $1,000.00 Giveaway, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

Let us know how to reach you if you win!

Privacy 100% guaranteed; email address for contact purposes only


Already have a B&H account? Just log in tomorrow to enter again!

  • 1Description

The Alto SXA18P 18" Vented Line Array Subwoofer is engineered to deliver an array of configuration options, allowing you to incorporate it with up to four SXA28p loudspeakers as needed for any short or medium throw environment. The subwoofer is built to endure stress, while maintaining a sound that is loud, clean and uncolored. It features a heavy-duty steel grill, and is covered in a ruggedized black textured finish that is scratch and dent resistant. Recessed handles makes the subwoofer easy and safe to move from rehearsal space to stage and back again, while heavy-duty rubber feet ensure that it stays put no matter how much volume you pump through it. Its full-length metal grille protects the drivers and the horns from falling mic stands or other pitfalls of repeated stage use.

With the ability to handle 750W (continuous), 1500W (program) or 3000W (peak), the subwoofer is suitable for obtaining clean, deep frequencies. The subwoofer is capable of delivering 125 dB Peak SPL, producing incredible sonic clarity. 

The subwoofer has a rugged cabinet made of 18mm calibrated plywood that is ready for the constant stress that touring systems endure. It also features an attractive black finish and perforated metal grill. Suggested configurations include 2 SXA18P subwoofers usable from 37Hz to 180Hz, plus 4 SXA28P speakers usable from 77Hz to 18kHz, and 1 STAGEDRIVE+ Digital Processor that includes factory presets and user memory for custom presets.

It is a versatile subwoofer that can be used for live sound systems, touring rigs, arenas and stadiums, as well as houses of worship. 

3000W peak power rating
18" vented subwoofer
Optimized for short or medium-throw
Suitable for indoor or outdoor installation
Configurable in a stereo system, mono center, or delay tower
Compact design, suitable for fixed installation or renting
Frequency Range Operating: (-10 dB): 37 to 200 Hz
Frequency Response (-3 dB): 43 to 200 Hz
SPL @ 1 m
Nominal: 122dB SPL Continuous (Direct Mode)
Maximum: 125 dB Peak (Direct Mode), 122 dB SPL Continuous (Direct Mode)
Power Rating Direct Mode: (AES Standard), 3000 W peak / 1500 W program / 750 W continuous
Transducer Low: 18" Subwoofer, 4" voice coil high-power ferrite magnet, weather resistant cone
Mode Crossover: Passive / Direct with external selector
Sensitivity System: (1 W @ 1 m): 97 dB SPL (passive configuration)
Nominal Impedance 8 Ω
Mounting Single 36 mm pole socket, 4 integrated points for line array suspension, 2 handles, optional casters (sold separately)
Enclosure 18 mm birch plywood, black finish, perforated metal grille, silver finish
Input Connectors 2 x Speakon NL-4 type
Dimensions (W x L x H) 24.4 x 24.4 x 27.5" (62.0 x 62.0 x 69.8 cm)
Weight 114.2 lb (51.8 kg)
Be the first to review this item