HSD Sound Systems · Mid-Bass

HSD Hammer

Name: HSD Sound Systems Hammer
Brand: HSD Sound Systems
SKU: 218MBH60
Price: 5600.00 USD
Availability: InStock

Model 218MBH60

Dual-18 front-loaded horn for devastating mid-bass impact.

The Hammer is a high-output front-loaded horn built for exceptional mid-bass performance. Using a slightly altered version of the Haymaker's horn path, it accommodates dual 18" drivers for increased impact and efficiency at 108 dB sensitivity. It pairs seamlessly with the Haymaker and HSD's subwoofer range to build a powerful, full-spectrum system. Hand-built by Hennessey Sound Design in Massachusetts, and backed by a 5-year limited warranty.

$5,600 retail

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

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

HSD Sound Systems Hammer mid-bass by Hennessey Sound Design

Amplification

Passive cabinet, amplification required

The Hammer presents 8 ohms nominal (4-ohm driver load) and handles 2,400 W continuous. One channel per box on the KP Series or KD Series platform; a 4-20KD channel (5,000 W into 4 ohms) runs two Hammers in parallel.

1 amp channelper cabinet, 8Ω nominal

Drivers

2×18″front-loaded horn

Sensitivity

108 dB1W/1m

Passband

60–250Hz(-3 dB); 50–300 Hz at -10 dB

Weight

195 lbs48″ W × 24″ H × 32″ D

Full specifications

HSD Hammer (218MBH60) specs

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

Frequency Response	60 Hz - 250 Hz (-3 dB); 50 Hz - 300 Hz (-10 dB)
Sensitivity	108 dB (1W/1m)
Drivers	2 x 18" (front-loaded horn)
Power Handling	2,400 W continuous (4,800 W program)
Impedance	8 ohms nominal (4-ohm driver load)
Dimensions	48" W x 24" H x 32" D
Weight	195 lbs
Connectors	2 x NL4

HSD Hammer 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 Hammer

Common pre-purchase questions on the HSD Hammer.

What does a dedicated mid-bass horn actually do for a system?

It takes the 60–250 Hz band, kick drum, bass guitar, the punch of dance music, off your subs and tops and gives it its own horn with 108 dB sensitivity. The subs stop straining to reach up, the tops stop straining to reach down, and the system gains the physical impact that front-loaded horn rigs are known for.

Why does the Hammer pair so well with the Haymaker?

The Hammer's horn is a slightly altered version of the Haymaker's own horn path, scaled to load dual 18″ drivers. The two cabinets share a family voicing through the crossover region, so a Haymaker-over-Hammer stack transitions seamlessly.

What amplifier drives the Hammer?

It handles 2,400 W continuous (4,800 W program) at 8 ohms nominal. One channel per cabinet on the HSD KP Series/KD Series platform is the straightforward setup; on the KD Series 4-20KD (5,000 W into 4 ohms per channel) you can parallel two Hammers per channel and run eight boxes from one 2U amp.

Hammer, V-Horn, or Cannon, which mid-bass box?

The Hammer is the output king: dual 18s, 2,400 W, 108 dB, for large stacks. The V-Horn packs a single 15″ into a 24 × 24 × 36″ box for mobile rigs where space and manpower are limited. The Cannon is a straight 18″ bandpass horn designed specifically to ride on top of big FLH sub stacks. Tell us the rest of the rig and we will spec the right one.

System design