Seaton Sound, Inc.

04/09/2026

This popped up on my personal fb memories from 16 years ago now!😯 Funny how these were considered huge at that time (2010) while the hard core home theater nuts now consider this normal. Now that we have production cabinets getting built and finished in house, it might be time to revisit some of these more over the top packages as we clear out the last of the backlog in the next few weeks.
Of course with 16 years experience since then I have some ideas on making such monsters fit in useful places in room and not having to hire movers to get them there. 🤔

Our Terraform XL

10/19/2025

Another great looking project wrapped by Blair High Performance Solutions including a pair of our shallow 21" subwoofer modules.

08/30/2025

Cool project coming together by Michael Franks Design Co. & The Screening Room AV. 6 of our DS21-LP subwoofers are going in that we pictured a few weeks back when they shipped out.

07/28/2025

Some serious subwoofer power headed to 3 of TSR's projects w/ Zachary Faley. Check out the 9.5" deep DS115 prototypes, a set of 4 DS-112 modules & of course a pile 'o 21s 😎🔈

05/04/2025

May the 4th be with you.

04/25/2025

Yesterday we shipped an interesting subwoofer system that will use 10 of our DS18-12 shallow subwoofer modules to take advantage of Trinnov waveforming in a large room. The designer is using 5 amplifier channels in stacked pairs at the front and rear walls. The amplifier shown is about 1/2 the cost of our 4000W amplifiers allowing the channels needed within the system budget. I am hopeful we'll see some info on the final result in the coming months.

04/10/2025

With some SubMersive models and Catalyst speakers going on 19 years old now, service or upgrades are something many will consider. After many years of use, the foam gasket which seals the amp to the box, it can require a lot of persuasion before the amp releases from the box. Sometimes you can just use the blue PowerCon as a handle (unplugged from wall), but some need some added help. Below is a video showing how to use a 30mm long, M6 machine screw (6mm diameter) to quickly break the amp free from the box. We include this screw with upgrade or service packing. Most hardware stores will have the same or similar M6 screws. If too short, it won't fully break free or make it hard to pull the rest of the gasket free. After the intro you can see how it's done at about 1:20 into the video.

Anyone looking to upgrade their SubMersive can find the upgrade here on our website, and we will soon be adding some upgrade options for our Catalyst 12C & 8C owners on the website as well. E-mail us if you need an upgrade not yet on the website.
https://seatonsound.net/product/submersive-hp-f2-ht-amplifier-upgrade/

Many have one of our original style amplifiers with the 2 XLR connectors and volume control with vertically ribbed heatsinks as used in the SubMersive HP & F...

03/21/2025

Join Scott Newby & I tonight, live on YouTube. You can watch the live chat any time after as well. I'll even be talking and maybe doing a little show & tell about some new products in the works.

See you there!

Very Excited to go Live With Mark Seaton Not Only Talking Everything BASS related but more importantly celebrating the 20 year anniversary of Seaton Sound! C...

12/26/2024

If you didn't yet get the gift you really wanted through the holidays, take a look at a new, natural walnut finish we are now offering. These SubMersive F2 subwoofers are some of the first samples we ran of this finish, where the miter folding really shows off the striking grain patterns and will be available on most of our products.

To *finish* out the year and justify sampling some other products in walnut, I'm offering the 3 pictured F2's at a significant discount. A walnut SubMersive F2+ will be $3695, and $2395 for the F2-slave.

Keep watching for pictures of some new products and offerings coming soon. Email us at [email protected] if you are interested in the sale priced units.
Spec and details on the SubMersive F2+/F2-slave can be found here:
https://seatonsound.net/product/submersivef2/

11/21/2024

New Catalyst 12C passive crossover design available soon along with new amplification options.

We've been quiet here lately, but we have more than a few interesting things getting finalized and under development. I have long had requests for a passive crossover for the Catalyst 12C speaker. We first sorted out a passive mid-tweeter crossover for the 8" coaxial to allow more internal and external rack mounted amplification options. This affords us lower idle noise floor, easier wiring to rack mounted amplifiers, and even the ability to use multi-channel active crossover functions in advanced processors like Trinnov and Storm.

With the new passive network delivering a response easily within 1.5dB of the active crossover I circled back for a fresh look at a 3-way network. With lots of testing, modeling, simulation, more testing, and of course listening, the design is done. What's left is to layout and place the 30+ crossover components on the custom circuit board which will drop in for the original amplifier hole.

Maintaining the original 50Hz low end extension we are seeing a conservative 95dB @ 1m output from a 2.8V input. The passive speaker is a 4 Ohm load in the bass, but the speaker won't flinch with 1000W @ 4 Ohm, and even double that could be used with a >60Hz high pass in place as most use them. Mind you even 250W@8Ohm/500W@4 Ohm gives you headroom of almost 119dB@1m. While I am still waiting on some final part costs, the passive crossover conversion sell for less than $1000 which is a good deal less than a new 3 channel amplifier with DSP. Please e-mail us at [email protected] if you are interested in more information.

03/14/2024

It' was a little wild to realize yesterday marked 19 years of operation for Seaton Sound. Below are just a few memorable moments for the company and our customers over the years. I am grateful to the many customers who have enabled us to keep creating interesting new designs and pursuing a passion for all these years.

Over the past 6 months we have started pushing through some fun new designs (see photos at the end), with more in the works for the months to come. This year I will be more active here, on the facebook group Home Theater Setup & Calibration, and on our YouTube channel. Lots of fun to come as we head toward 20 years. 🍻

12/01/2023

We have a few SubMersive HPs and an F2 in black oak headed out today, but the pre-owned pair is still available. We had a moment to take some pics of these SubMersives and the flat black F2s, both of which are now on the product pages. The pictured SubMersive HP has the faintest of scuffs on the upp right corner of the back where the amp is. I wasn't able to capture it well on the camera to give you an idea of how subtle it is. The 2nd unit is indistinguishable from new.

$400 off each SubMersive HP and $500 savings on the flat black F2s. 🍻
https://seatonsound.net/product/pre-owned-submersive-hp-or-hp-slave-subwoofer/