HSD Sound Systems · Subwoofer

HSD Warhammer

Name: HSD Sound Systems Warhammer
Brand: HSD Sound Systems
SKU: 2x18FLH36
Price: 7100.00 USD
Availability: InStock

Model 2x18FLH36

Dual-18 FLH sub built for sustained 140 dB+ output.

The Warhammer is a dual 18" front-loaded horn subwoofer designed to deliver extreme SPL and versatility across multiple genres. A ported rear chamber enhances driver cooling, allowing higher power handling and sustained performance at output levels exceeding 140 dB. It excels in both sub-bass and mid-bass roles, making it one of the most versatile boxes in the HSD lineup. Hand-built by Hennessey Sound Design in Massachusetts, and backed by a 5-year limited warranty.

$7,100 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 Warhammer subwoofer by Hennessey Sound Design

Amplification

Passive cabinet, amplification required

The Warhammer presents 8 ohms nominal (4-ohm driver load) and handles 3,200 W continuous. Plan one high-power KD Series channel per cabinet, we will spec the exact model against your box count.

1 amp channelper cabinet, 8Ω nominal

Drivers

2×18″FLH, ported rear chamber

Output

140 dB+sustained SPL capability

Response

36Hzto 150 Hz (-3 dB); 30 Hz at -10 dB

Power

3,200Wcontinuous (6,400 W program)

Full specifications

HSD Warhammer (2x18FLH36) specs

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

Frequency Response	36 Hz - 150 Hz (-3 dB); 30 Hz - 250 Hz (-10 dB)
Sensitivity	109 dB (1W/1m)
Drivers	2 x 18" (front-loaded horn, ported rear chamber)
Power Handling	3,200 W continuous (6,400 W program)
Impedance	8 ohms nominal (4-ohm driver load)
Dimensions	24" W x 48" H x 48" D
Weight	295 lbs
Connectors	2 x NL4

HSD Warhammer 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 Warhammer

Common pre-purchase questions on the HSD Warhammer.

How loud is the Warhammer, really?

HSD designed it for sustained output beyond 140 dB. The key word is sustained: a ported rear chamber pulls heat off the dual 18s, so the cabinet holds its rated 3,200 W continuous through long sets instead of compressing as voice coils heat up.

Is the Warhammer a subwoofer or a mid-bass cabinet?

Both, and that is its trick. With -3 dB points at 36 and 150 Hz (reaching 250 Hz at -10 dB), it plays deep enough for sub duty and high enough for mid-bass duty. Fleets that own Warhammers can deploy them as the sub layer one weekend and as the punch layer over Sherman or BattleAxe bases the next.

What amplifier drives the Warhammer?

It handles 3,200 W continuous at 8 ohms nominal, the most power-hungry single box in the HSD range. Plan one channel of the HSD KD Series platform per cabinet (the 4-20KD delivers 5,000 W per channel into 4 ohms), and let us spec the exact model and channel loading against your cabinet count and headroom target.

What tops go over a Warhammer wall?

The Haymaker is the natural partner, a tri-amped 3-way with the throw to keep up with 140 dB of low end. For maximum scale, add Hammer mid-bass between them; for compact high-output rigs, the Uppercut rides on a pair of Warhammers.

System design