Search found 369 matches

by ACUA
Mon Feb 02, 2026 7:49 pm
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: MCM 55-2421 8” driver VS everything
Replies: 101
Views: 14637

Re: MCM 55-2421 8” driver VS everything

I had to carefully smash/fold the bubble surround of these drivers to squeeze them through the cover window but they fit with no modification and lucky me they fit snuggly, literally touching each other but the original screw holes lined up. Initial test suggests that the MCM 8”s seem to have a smoo...
by ACUA
Mon Feb 02, 2026 4:58 pm
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: MCM 55-2421 8” driver VS everything
Replies: 101
Views: 14637

Re: MCM 55-2421 8” driver VS everything

I picked up a set of very beefy 8” drivers that I am going to test out in this enclosure. They already do not fit through the side cover holes. The am going to have to trim some of the side cover plating to get these guys to fit!
by ACUA
Mon Feb 02, 2026 10:49 am
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: MCM 55-2421 8” driver VS everything
Replies: 101
Views: 14637

Re: MCM 55-2421 8” driver VS everything

I have tried many things in my Ram pickup truck in order to achieve good bass response. I have manipulated prefabricated enclosures with different driver configurations and I have achieved some good results. I took one enclosure that was supposed to be about 0.9 ft.³ internal volume per side that wa...
by ACUA
Mon Feb 02, 2026 10:09 am
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: MCM 55-2421 8” driver VS everything
Replies: 101
Views: 14637

Re: MCM 55-2421 8” driver VS everything

I finally hatched one of the MCM 55-2421 8” drivers yesterday. I was able to replicate the event and took a voltage reading and set to peak hold the meter climbed to 22.66vac. Looking at the coil it was thermally within the limits, but mechanically it Marty McFly style yeeted the coil out of the hol...
by ACUA
Thu Jan 15, 2026 7:10 pm
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: MCM 55-2421 8” driver VS everything
Replies: 101
Views: 14637

Re: MCM 55-2421 8” driver VS everything

You wanna see silly…. Look up the Sun Down Audio z8: https://sundownaudio.com/products/z-series-z8-4000w-subwoofer-z-8 https://youtube.com/shorts/FwkcB1JbwA4?si=daAlhXLGeV-B5sef https://youtube.com/shorts/zobmONvfEg8?si=75Xjn6K8I5k1IHAd Now that thing is silly! As for things that are considered a “n...
by ACUA
Thu Jan 15, 2026 2:01 pm
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: MCM 55-2421 8” driver VS everything
Replies: 101
Views: 14637

Re: MCM 55-2421 8” driver VS everything

This might be an annoying question. :hyper: I really wanna ask though. With regard to my tuba 45 18.5” wide dual MCM55-2421 8” loaded horn, I would like to consider upgrading the drivers for the most ridiculous option on the market. I realize the relationship between wide and narrow cabinets for a g...
by ACUA
Thu Jun 12, 2025 7:27 am
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: MCM 55-2421 8” driver VS everything
Replies: 101
Views: 14637

Re: MCM 55-2421 8” driver VS everything

I have not been on here in a while :noob:, but I have been using my Tuba 45 sub horn in my truck almost daily 8). I found that this 18.5" wide horn fits nicely in the back seat of my 06 dodge with the rear seat folded up. There is about 62-65ish inches between the doors for about 20 inches betw...
by ACUA
Fri Jan 26, 2024 10:16 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Building my home theater rig, Tlah, Table Tuba
Replies: 74
Views: 67415

Re: Building my home theater rig, Tlah, Table Tuba

https://www.amazon.com/dp/B07KKQ573F/r ... dg_tit_rfb

The “renewed” model is still available for $220!
That may be a good one!
by ACUA
Fri Jan 26, 2024 1:26 am
Forum: Home Theatre/Stereo/Auto Sound
Topic: Building my home theater rig, Tlah, Table Tuba
Replies: 74
Views: 67415

Re: Building my home theater rig, Tlah, Table Tuba

I am slowly going to undergo building myself a new home theater system and wanted to post up here for support and feedback. There is a seemingly fitting driver on Partsexpress.com right now as a buyout that I may procure for this effort. https://www.parts-express.com/CWE-125B20U-Speaker-299-4346?qua...
by ACUA
Fri Jan 26, 2024 1:09 am
Forum: Home Theatre/Stereo/Auto Sound
Topic: Building my home theater rig, Tlah, Table Tuba
Replies: 74
Views: 67415

Re: Building my home theater rig, Tlah, Table Tuba

Update on this after some quality time listening and tweaking. For the first little while I had been pulling sound form the tv through a 3.5mm jack out the back feeding into my old audio receiver. I was not impressed initially with how it all sounded. I picked up a fiber optic audio cable and ran th...
by ACUA
Mon Jun 19, 2023 1:41 pm
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: Driver Vd vs sensitivity - technical questions
Replies: 18
Views: 6653

Re: Driver Vd vs sensitivity - technical questions

I have to skim read a book like that because of the math content. I have read many books like that. I do get lost often because to truly understand you must be able to follow the math as well. I cannot keep up with the math. Like I said, there is enough verbal explanation and content that the book i...
by ACUA
Mon Jun 19, 2023 12:51 pm
Forum: Everything Else
Topic: Personal electronic music history
Replies: 20
Views: 7003

Re: Personal electronic music history

I like certain Electric Dance Music for the crisp, tightness of it. When sound is played in an environment and captured with a mic, then converted into an electrical or digital signal then manipulated about, then collected in some solid-state format and then converted back into an electrical or digi...
by ACUA
Wed Jun 14, 2023 2:29 pm
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: Driver Vd vs sensitivity - technical questions
Replies: 18
Views: 6653

Re: Driver Vd vs sensitivity - technical questions

It was fun to read that literature and observe the lack of T/S content. It was easier for me to read because I did not get tangled up in acronyms. I want a physical copy of that book that I can be proud of. That is definitely one of the better acoustical engineering works I have read. Not that I hav...
by ACUA
Wed Jun 14, 2023 10:26 am
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: Driver Vd vs sensitivity - technical questions
Replies: 18
Views: 6653

Re: Driver Vd vs sensitivity - technical questions

Bill mentioned this book a while back. I suspect the answers we're seeking are contained within, but I haven't had the level of inspiration required to dive into it. ACUA, your thirst for knowledge seems high at the moment, maybe you can pull some morsels of insight from it? The entire book as a PD...
by ACUA
Fri Jun 09, 2023 9:13 am
Forum: Tuba and Titan Pro-Sound Subwoofers
Topic: Driver Vd vs sensitivity - technical questions
Replies: 18
Views: 6653

Re: Driver Vd vs sensitivity - technical questions

Seth, as far as my thought experiment is going I am happy to focus on a single frequency or hyper narrow band width definitely centered in the lowest useable range say between 15-30hz. I maintain a few car audio enthusiast friends and the majority of content is about making the biggest waves we can ...