HSD Sound Systems · Subwoofer

HSD Tomahawk

Name: HSD Sound Systems Tomahawk
Brand: HSD Sound Systems
SKU: 21FLH28
Price: 6100.00 USD
Availability: InStock

Model 21FLH28

100 pounds lighter than the BattleAxe, built for the road.

The Tomahawk offers a highly sensitive, truck-pack-friendly alternative for touring professionals who demand efficiency without sacrificing performance. Weighing 100 pounds less than the BattleAxe, its compact dimensions and exceptional 107 dB sensitivity make it the ideal 21" FLH for mobile setups and large-scale touring. Hand-built by Hennessey Sound Design in Massachusetts, and backed by a 5-year limited warranty.

$6,100 retail

Built to order. Quote includes freight, system design, and current lead time.

Request Quote Call 210.489.0492

Most quotes sent same business day. Real people, no scripts.

HSD Sound Systems Tomahawk subwoofer by Hennessey Sound Design

Amplification

Passive cabinet, amplification required

The Tomahawk presents 4 ohms nominal and handles 2,300 W continuous. One Tomahawk per 2,500 W channel of a KP Series 4-10KP / KD Series 4-10KD, four subs per amp.

1 amp channelper cabinet, 4Ω nominal

Driver

1×21″front-loaded horn

Response

29Hzto 150 Hz (-3 dB); 26 Hz at -10 dB

Weight

250 lbs100 lbs lighter than BattleAxe

Sensitivity

107 dB1W/1m

Full specifications

HSD Tomahawk (21FLH28) specs

Factory specifications from Hennessey Sound Design. Download the cut sheet for drawings and driver details.

Frequency Response	29 Hz - 150 Hz (-3 dB); 26 Hz - 250 Hz (-10 dB)
Sensitivity	107 dB (1W/1m)
Drivers	1 x 21" (front-loaded horn)
Power Handling	2,300 W continuous (4,600 W program)
Impedance	4 ohms nominal
Dimensions	23.75" W x 53.5" H x 48" D
Weight	250 lbs
Connectors	2 x NL4

HSD Tomahawk cut sheet (PDF)

Why buy from Fullblast

An HSD system is a build, not a box. We manage the whole thing.

Authorized HSD dealer

Fullblast Sound is one of only three authorized HSD Sound Systems dealers in the United States. Factory pricing, factory support, and a direct line to the Massachusetts shop on every order.

Real dealer support

We spec the system against your room and application, handle freight and logistics, and stay on call after delivery. Talk to us before you order and we will get the design right the first time.

Nationwide freight

Every HSD cabinet ships crated freight from the factory. We quote and coordinate delivery to your dock or venue anywhere in the country as part of the system price.

Financing available

Spread an HSD system across payments instead of a single check. See financing options or ask for terms with your quote.

Get a real quote

Send a system spec, not a price shopping number

Tell us the room, the audience size, and what you run today. We come back with the right HSD build, amplification, freight, and current factory lead time. One short form.

Request Quote Or call 210.489.0492

Same business day response.

Buyer research

Questions buyers ask about the Tomahawk

Common pre-purchase questions on the HSD Tomahawk.

What did HSD trade to cut 100 lbs from the BattleAxe?

Remarkably little. The Tomahawk keeps the 21″ FLH formula, 107 dB sensitivity, and extension to 29 Hz (-3 dB) / 26 Hz (-10 dB), in a 23.75″-wide, 250 lb cabinet. Continuous handling is 2,300 W versus the BattleAxe's 2,500 W, and the -10 dB point gives up a few Hz. For touring fleets, the weight savings pay for themselves every load-in.

What amplifier drives the Tomahawk?

2,300 W continuous (4,600 W program) at 4 ohms nominal. One Tomahawk per channel of the HSD KP Series 4-10KP or KD Series 4-10KD (2,500 W per channel into 4 ohms) is a clean one-to-one match, four Tomahawks per 2U amp, with HSD FIR presets and limiting per channel.

What tops pair with the Tomahawk?

The Haymaker is the classic partner: tri-amped 3-way over a pair of Tomahawks per side is the archetypal HSD touring rig. The Uppercut suits smaller footprints, and Hammer mid-bass slots in when the show scales.

Is the Tomahawk festival-capable or just a mobile box?

It is a real 21″ front-loaded horn, the same species as the BattleAxe, in trail gear. Clusters of Tomahawks build genuine festival low end; the difference shows up in the truck and on the ramp, not on the dance floor.

System design