DIY Active Home Theater Subwoofer - GRS 12SW-4 and Bash 300S Plate Amplifier

86768 views

1539

A custom made PVC pipe ported subwoofer enclosure to house a GRS 12SW-4 12 inch 4 Ohm poly cone subwoofer and to be powered by a Bash 300S 300w RMS digital subwoofer plate amplifier. Previous plate amplifier, O Audio, who manufactures the similar amplifier and also sold them on Parts Express as well. So don't be confused about Bash and O Audio subwoofer plate amplifiers.

A customer sent me the two main components. Tested the plate amplifier and seems only to output about 210w RMS, expecting to have a 300w RMS as it was advertised. But not bad. Since the GRS replacement subwoofer is only rated to accept about a 150w RMS musical power. Also extracted the T/S parameters of the GRS 12SW-4 12" subwoofer. Data is now archived and let me know if you need them.

And as usual if you need the enclosure dimension, just click this link - https://www.tinkercad.com/things/afPRlwCNZGJ You need to create an account and login to TinkerCad before you can copy, edit and see the dimensions of the 3D schematic.

I flush mounted the subwoofer and installed rubber footing at the bottom of the box. Plate amplifier also seats on a routed MDF flush mount at the back as well for a cleaner and more professional look and feel.

If you are fond watching previous videos about me using T-nuts and machine head bolts, this time I used drywall screws to attach the woofer and Allen head wood screws on the plate amplifier. That is because my time is so limited as well as the customer's budget.

I used a roundover router bit to give the box edges a smooth finish. And pre-painted the enclosure a generous amount of lacquer sanding sealer to seal the MDF pores in order for a very smooth paint job later.

Wanting to achieve a piano-smooth wet sanded finish so I tried to bring the box to a nearby automotive body and paint shop to do the task. I don't know what you think how the project turn out so please let me know what you think by commenting down in the comment section.

Also, please consider subscribing to my channel if you want to see and hear the bass test video next week. I'll be testing the active subwoofer with bass-heavy movie trailers and music. So see you all in the next video!

248 comments

(Louvine Apigo) galing ganda ng gawa

(Mr.ZegaL_09) do you want to give me for my most beautiful memories from your YouTube i am from Indonesia and i really like your content I hope you want 😀🙏 please

(Norman Uittenbogaart) What was the total cost? And when do you use stuffing in a box?

(Vincent Gibson) Awesome build. Proper!

(Tyelle mcknight) Hi what is the name of the software

(Civeneg Arevir) I love to watch those cute charcoal doggies.

(Zooey Asuncion) Anggaling nang gawa boss saan ka po sa pinas balak ko gumawa ng subwoofer na 100watts lang po

(Денис Денискин) Приятно смотреть на работу профи! Всё делается с расчётами и по канонам жанра! Слава богу, нет аудиофильских соплей и нытья про серебро в проводах 🤟👍

(Civeneg Arevir) Nalingaw ko SA mga doggie cute KAAYO from CDO.

(Tina sharma) Superb 👌 sir

(AJITH MANDA) Superb work

(Juan M Ramírez R) Magnífico trabajo mi querido amigo, como siempre nos deleita con una obra de arte.....También me he alegrado mucho de poder ver a sus hermosas mascotas y su familia....Gracias de corazón por su gran labor divulgativa y sus estupendas aportaciones a la comunidad y al canal.....Un gran abrazo fraternal y muchas bendiciones desde Las Islas Canarias (España)............................................

(SoundTech Lights n Sounds) Ano sir yung pintura bago mo siya pinamasilyahan?

(Daniel Cortez) CM boss, you mentioned Parts Express. They ship to our lovely RP? For example, loudspeakers, amps, your little measuring box (model# ?). Thx. 🙏🏾

(Edu edu) Como sempre mandando super bem, parabéns pelo otimo projeto. As always doing very well, congratulations on the great project. :)

(E L) Idol magkano aabutin kung magpagawa sau ng ganyang subwoofer?

(By Pass) Só faltou ligar pra nois ouvir !! A parte mais importante deixou passar

(Ramsey Edward) For Pioneer For GM-A3702 amplifier can I use one channel for Lpf for subwoofer and the other channel for Hpf or full range for the rest of system drivers?

(Francistor DIY) Quality talaga sir mga gawa mo. yung 10'' dual ported na ginawa ko na design mo ganda parin, daming nagagandahan sa bass ang linis ng buga kahit direct source lang 😃

(ALEkS ON) well done sir, pwede mkipag sabayan sa branded

(Omkar Ahir) Which sounds better for home the JBL powered subwoofer that you made or this subwoofer?

(Joe Cue) paint has too much orange peel . Wet sand at 800 grit before final coat and clear coat

(P-Bass) it seems to be it is tuned pretty low (big box + long port)...I have a 6.5 inch tuned to 22 Hz (videos on my channel)

(Neverseenbefore) Sir please tell me how much rms is PA 80d amplifier? 😭😭

(Jettrude Sean Soriano) Ganda talaga mga gawa mo bro

(Lokesh Mounish) Good job

(melveen pascubillo) PA set up rako puhon sa mirage nko Ike

(poor rider) Parinig naman po ng tunog nyan sir salamat ✌️😊

(Will Stefan) Nice dogs!!👍

(Ashish Kumar) Sir can you share me the box size of 10 inch dual magnet suboofer 300 watt rms aeroport enclosure

(MR.ELTURO) THE BEST ka talaga IDOL Gumawa Sobrang linis🤗🤗

(Ruel Gidayawan) As always, a very nice build.

(Brokey Hub) hellow friend.... It's nice 👍💪

(Fernando Magnaye) Good day sir...can you send me the description of your subwoofer amplfier board...

(Francis Jhan) Wow ganda nman boss saan ka bumibili ng Amplifier Board?

(Nơi Thư Giãn) What is each stage of creating that speaker box?

(sibusiso jele) Thanks for the video. Is there a difference between a home theater sub and the car subwoofer?

(Bhushan Tech) Please show testing

(Jofre Rojo) Nice one sir!

(PRADIP KUMAR KAR) We expect a little sound demo at last sir.

(PRADIP KUMAR KAR) Pro

(Uncle Blue) I think audio companies should send their engineers to you for some training why lie😅😅.i love the perfection you bring out to every single project you undertake...from the specs, till the end product is just satisfying to watch😍.

(Max Blade) Sound test please 🙋‍♂️

(Cortes Sarge) wow.nindota ana sir oi.if dool.pata diri sa cebu nindota kaha sa akong box subwoofer kay mag pahimo jud ko nimo hehe tnx for sharing with us

(Mostafa Ali) Link to purchase the products used in the video

(JUAN JOSE AVILA BARDALES) te quedó bien bacan .

(shaa) Please

(Ramsey Edward) What kind of driver are you using and what brand and RMS?

(James Torres) thank you for sharing sir. time to change the enclosure of my box

(sainath Dumbre) Bhai iska sound test video banao

(JIZZ MONSTER) Nice How did you make the flares?

(Dharun Yogesh stalin) Subwoofer demo video bro. Uploaded

(Sahal Rasheed) this amp i need . where getting

(weed bass head) Try to paint the orenge port black so when somebody desides to have a peek in the port it would be black like the front port

(Vishal Deshmukh) again its class thing i saw on YouTube and again from charcoal monkey hahahahah love from india

(Varaniya Ketan) Sir uska bord kahase kharide ham kuch karva do

(#sushil pal) Ek hamare liye bhejo bana ke havy bass sound system 🙏🙏🙏

(Tebogo Thale) Already liking this one👌🏿

(Lights On Studio) How to buy

(Marcos Soto) What program do you use to design the boxes or to figure out dimensions?

(RC STUDIO) Quality talaga, parang factory made like clipch and other US made sub box.

(Ramsey Edward) Is it better to have a home theater subwoofer in a box for a hard bass or in a tube for a long deep bass?

(Ramsey Edward) Can JBl stage 1210 be used for home theater system or does it sound bad in this case? Which car subwoofer is the best for home theater?

(Nandakumaaran S) Brother Just small request to you, To make video about 31HZ frequency tuned subwoofer box for Sony Xplod subwoofer speaker

(MP KA06 Qatar) Master of all DIY work in Philippines 💯💯💯💯👌👌👌👌 Hai from Qatar

(Nandakumaaran S) Hi brother, Good presentation and nice work... 💚

(John Flores) Gusto ko magpagawa😍

(Александр Николаевич) Просто Идеально!

(Fred O-v) I want your fabrications in my room

(Kib Cebreros) Magkano kapag buo na idol?

(Noobs Games) which is the paint

(DivyeshKumar Panchal) test waiting

(Laurenz Speaker GM) Wow that's a huge subwoofer, I can't wait to hear the sound!

(Way Ronk) So nice and so awesome..please for giveaway.

(74 Midwestbass) Nice

(twchie) what's the painting procedure??

(twchie) fan from india your dog is so cute

(DMAhmed HunterAli) How you can make subwoofer box Very clean

(Ozan ARDIC) Hey bro please help me? Can you give me 2xw312d4 spl box ?

(Fahim Khan) still a bad finish, i was hoping for crystal clear piano black finish, the finishing is wavy

(Jorge Laran Lipata) Watta awesome project Lods😍

(Kushal Singh) Your work is so professional keep it up cheers from 🇮🇳😘

(Alpha Omega) Pretty girl she make me think of an apple :D Oh and perfect work as always!

(E Dud) Nice👍the paint job looks great😎

(Randy Locus) A work of art indeed. Sa Raon po kayo namimili ng parts like the amplifier and speaker? If yes alin po na store?

(Paulo Fialho) Admiro muito o seu trabalho, tens habilidades e faz um excelente trabalho. Parabéns!

(Jessie Butcon) Sinawa kaau boss oi nindot pa jod pagkahimo👍

(BLACK FLEA) Great job👍

(ѕяєєנιтн ഇടവട്ടത്ത്) Why are u late??

(❤️STATUS LOVERS ❤️) Price

(Peter Orion) Ang ganda talaga ng mga gawa mo boss. Ang sarap talaga pag skilled ka... ang hirap ng walang talent.

(CONCRETE GAMING) I want to buy this how much money can I take

(Sangam Graphics & Photo Studio) Wow 👌 nice.

(Mahesh Dhodi) Nice sir

(Matthew T) amazing Work😍

(Myralyn Pangan) Nice build sir

(Narasimha audios) Super Sir 👌👌👌

(scott swinden) 😍😍😍😍😍😍😍

(Manyu Vihan) “Again Great Video” 👍🏻 Bro