Subwoofer Aktiv/Passiv Copie conept 1

Technical Specifications

• Frequency Response: 28Hz to 200Hz.

• Versatility: Designed for both active (with integrated amp) and passive configurations.

Engineering & Print Details

To withstand the high internal pressure of low-frequency audio, the enclosure is engineered for maximum air-tightness and structural stiffness:

• Material: Rapid PLA.

• Nozzle: 0.8mm (for superior layer bonding and speed).

• Wall Thickness: 4 solid perimeters, resulting in a 3.2mm airtight shell.

• Infill: 30% Gyroid to minimize cabinet resonance.

Structural Hardware

• Standoffs/Legs: The enclosure is elevated from the base by four 10mm diameter aluminum rods (100mm length).

Parts List: 

Speaker: 

https://de.aliexpress.com/item/1005001989115984.html?spm=a2g0o.order_list.order_list_main.316.1f9218027meoXp&gatewayAdapt=glo2de

Passive Radiator:

https://de.aliexpress.com/item/1005009011070536.html?spm=a2g0o.order_list.order_list_main.311.1f9218027meoXp&gatewayAdapt=glo2deu

Speaker Terminal: 

https://de.aliexpress.com/item/1005010153686669.html?spm=a2g0o.order_list.order_list_main.17.4e801802IPwizM&gatewayAdapt=glo2deu

Aluminum rod (3x 10mm x 100mm

Parts List: Amp (optional)

24V LED (you choose the color):

https://de.aliexpress.com/item/1005009023296115.html?spm=a2g0o.order_list.order_list_main.281.1f9218027meoXp&gatewayAdapt=glo2deu

RCA female jack (2 Holes):

https://de.aliexpress.com/item/1005009889075738.html?spm=a2g0o.order_list.order_list_main.291.1f9218027meoXp&gatewayAdapt=glo2deu

TPA3116 Subwoofer Amp:

https://de.aliexpress.com/item/1005006852777798.html?spm=a2g0o.detail.pcDetailBottomMoreOtherSeller.1.2d4bg7nHg7nHMo&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40050.354490.0&scm_id=1007.40050.354490.0&scm-url=1007.40050.354490.0&pvid=580f701c-c0da-4fd0-bb88-a73133b46c8b&_t=gps-id%3ApcDetailBottomMoreOtherSeller%2Cscm-url%3A1007.40050.354490.0%2Cpvid%3A580f701c-c0da-4fd0-bb88-a73133b46c8b%2Ctpp_buckets%3A668%232846%238113%231998&pdp_ext_f=%7B%22order%22%3A%22208%22%2C%22eval%22%3A%221%22%2C%22sceneId%22%3A%2230050%22%2C%22fromPage%22%3A%22recommend%22%7D&pdp_npi=6%40dis%21EUR%218.69%218.69%21%21%2110.00%2110.00%21%40211b61a417763975900474620edcfb%2112000038519126339%21rec%21DE%212053527650%21X%211%210%21n_tag%3A-29919%3Bd%3A38138065%3Bm03_new_user%3A-29895&utparam-url=scene%3ApcDetailBottomMoreOtherSeller%7Cquery_from%3A%7Cx_object_id%3A1005006852777798%7C_p_origin_prod%3A

DC Power Jack( 5.5X2.1mm DC099)

https://de.aliexpress.com/item/1005001816665743.html?spm=a2g0o.order_list.order_list_main.68.4e801802IPwizM&gatewayAdapt=glo2deu

DC-to-DC Filter 4A 25V (Recommended!!!!!)

https://de.aliexpress.com/item/1005009056432208.html?spm=a2g0o.productlist.main.7.39aaQSG2QSG2Ty&algo_pvid=bcc624a7-394f-421b-8c00-a09c4d3554ff&algo_exp_id=bcc624a7-394f-421b-8c00-a09c4d3554ff-6&pdp_ext_f=%7B%22order%22%3A%222%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21EUR%215.19%212.49%21%21%2140.55%2119.46%21%40211b653717731798311013348e4ab2%2112000047744077747%21sea%21DE%212053527650%21X%211%210%21n_tag%3A-29919%3Bd%3A38138065%3Bm03_new_user%3A-29895&curPageLogUid=SaAmJrbOp8bp&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005009056432208%7C_p_origin_prod%3A

Powerswitch  (MTS-102): 

https://de.aliexpress.com/item/1005007086052272.html?spm=a2g0o.order_list.order_list_main.326.1f9218027meoXp&gatewayAdapt=glo2deu

Instructions are self-explanatory

The amplifier was mounted to the rear using superglue, and rubber feet were added to prevent the subwoofer from moving on the floor. It is crucial that the enclosure remains airtight to ensure proper acoustics and the correct operation of the passive radiators.

A 24V 5A power supply is recommended for better sound quality and lower noise floor

Status: Done

Contact: For questions or support, please contact me at: [email protected]

Stay tuned for more speaker projects and other electrical DIY stuff!