# Een eigen voeding + versterker bouwen voor de "oude" 12" subwoofer

**URL:** <https://forum.revspace.nl/t/een-eigen-voeding-versterker-bouwen-voor-de-oude-12-subwoofer/1029>\
**Category:** Projecten\
**Created:** [August 18, 2026, 10:43am UTC](https://forum.revspace.nl/t/een-eigen-voeding-versterker-bouwen-voor-de-oude-12-subwoofer/1029 "2026-08-18T10:43:03Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![deacon](https://forum.revspace.nl/user_avatar/forum.revspace.nl/deacon/32/585_2.png) [@deacon](https://forum.revspace.nl/u/deacon)\
**Post date:** [August 18, 2026, 10:43am UTC](https://forum.revspace.nl/t/een-eigen-voeding-versterker-bouwen-voor-de-oude-12-subwoofer/1029/1 "2026-08-18T10:43:04Z")

</div>

## **Inleiding:**

Ik heb dus nog een oude 12" boxed 500w subwoofer van Monitor Audio liggen ([Monitor Audio Silver RSW12 subwoofer - iEar’](https://iear.nl/product/monitor-audio-silver-rsw12/?srsltid=AfmBOopWfer5i4OTjGO2_9adE5V1WGWYeNIWYnF7f_IT4DnQjsmQuDX9)) waarvan de versterker kapot is.  
Het idee is nu om hem in de auto te leggen en er goedkoop een auto (12V) versterker voor te bouwen… maar wel een enorm krachtige 💪 .

## **Plan:**

Gare tekening;

 ![tekening](https://forum.revspace.nl/uploads/default/original/2X/4/413b780571782317cc3c565bdc53828442cab2cb.jpeg)

tekening update

 ![teking update](https://forum.revspace.nl/uploads/default/original/2X/9/9a3669f7d119002195329064a5017acf78445ca9.jpeg)

**1 strip**  
de sub box van versterker

**2 seal**  
de sub box en leid kabel naar buiten

**3 HP-8 boost converter 12V (~100A) → +80V GND -80V**  
[12V Schakelende Voeding 1200W High Power DC-DC Automotive Eindversterker Inverter Boost Power Board - AliExpress 44](https://nl.aliexpress.com/item/1005008728520166.html?gatewayAdapt=glo2nld)

 ![WhatsApp Image 2026-08-18 at 11.57.26](https://forum.revspace.nl/uploads/default/original/2X/4/450e08b91ff00545bc1c30e46a27c67ab9602b90.jpeg)  
ali-powerr!

**4 Condensator bank (2x +80V 10mF + 2x-80V 10mF) + soft start circuit**

+1uF film camps parallel over de condensatoren om de hoge schakelfrequentie van de boost converter op te vangen  
+2x drain weerstanden 4.7kΩ 5w parralel om te ontladen bij uitschakelen

[https://www.conrad.com/en/p/weltron-410438-high-power-resistor-4-7-k-axial-lead-5-w-10-1-pc-s-410438.html](https://www.conrad.com/en/p/weltron-410438-high-power-resistor-4-7-k-axial-lead-5-w-10-1-pc-s-410438.html)

+2x weerstanden 15Ω 50w in serie voor soft start

[Arcol HS50 15R J Vermogensweerstand 15 Ω 50 W 1 stuk(s) kopen ? Conrad Electronic](https://www.conrad.nl/nl/p/arcol-hs50-15r-j-vermogensweerstand-15-50-w-1-stuk-s-3014070.html?qwer=CjwKCAjwhZDUBhBGEiwAbi5bjjKTxAqRgF0BJ6K2tRY-dw82usiCz6udxsnwsle3GtY_rPiDbz6a_hoC3DQQAvD_BwE&utm_source=google&utm_medium=cpc&utm_campaign=NL+-+PMAX+-+Nonbrand+-+Zero+traffic&utm_id=21568931958&gad_source=1&gad_campaignid=21575548064&gclid=CjwKCAjwhZDUBhBGEiwAbi5bjjKTxAqRgF0BJ6K2tRY-dw82usiCz6udxsnwsle3GtY_rPiDbz6a_hoC3DQQAvD_BwE)

+1x NE555 timer relais  
[aliexpress.com/p/tesla-landing/index.html?scenario=c\_ppc\_item\_bridge&productId=1005008622643548&\_immersiveMode=true&withMainCard=true&src=google-language&aff\_platform=true&isdl=y&src=google&albch=shopping&acnt=272-267-0231&isdl=y&slnk=&plac=&mtctp=&albbt=Google\_7\_shopping&aff\_platform=google&aff\_short\_key=UneMJZVf&gclsrc=aw.ds&albagn=888888&ds\_e\_adid=&ds\_e\_matchtype=&ds\_e\_device=c&ds\_e\_network=x&ds\_e\_product\_group\_id=&ds\_e\_product\_id=en1005008622643548&ds\_e\_product\_merchant\_id=765095345&ds\_e\_product\_country=ZZ&ds\_e\_product\_language=en&ds\_e\_product\_channel=online&ds\_e\_product\_store\_id=&ds\_url\_v=2&albcp=23068184797&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad\_source=1&gad\_campaignid=23058135279&gclid=CjwKCAjw4dDTBhAqEiwAkHYmSq6vq2vr53BTWUazcKx2kHinCbThwizTuA-x8T6k-XO78B0W4rvb5hoChAwQAvD\_BwE](https://www.aliexpress.com/p/tesla-landing/index.html?scenario=c_ppc_item_bridge&productId=1005008622643548&_immersiveMode=true&withMainCard=true&src=google-language&aff_platform=true&isdl=y&src=google&albch=shopping&acnt=272-267-0231&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&albagn=888888&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=en1005008622643548&ds_e_product_merchant_id=765095345&ds_e_product_country=ZZ&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=23068184797&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gad_campaignid=23058135279&gclid=CjwKCAjw4dDTBhAqEiwAkHYmSq6vq2vr53BTWUazcKx2kHinCbThwizTuA-x8T6k-XO78B0W4rvb5hoChAwQAvD_BwE)

+2x relais, (2x Finder met 6 contacten, 3in serie per lijn), om soft start weerstanden te bypassen na start tijd, aangestuurd door ne555 timer relais NO, 3sec delay ON  
[Finder 55 schakelrelais DC 3 wiss.cont. - 55.33.9.024.0010 kopen? - Elektrobode.nl](https://www.elektrobode.nl/products/finder-hulprelais-24vdc-3xwissel-55-33-9-024-0010?channable=071624696400323032353630323008&gad_source=1&gad_campaignid=23269097038&gclid=CjwKCAjwhZDUBhBGEiwAbi5bjsZcyC0OH3hwMk3XOrMcLvUdmkOz_-j-OPC7FfPWaNDrqYTlFp3VJBoCKqYQAvD_BwE)

[Finder 94.P3 Relaissocket Geschikt voor serie: Finder serie 55, Finder serie 86, Finder serie 094 Finder 55.32, Finder 5 kopen ? Conrad Electronic](https://www.conrad.nl/nl/p/finder-94-p3-relaissocket-geschikt-voor-serie-finder-serie-55-finder-serie-86-finder-serie-094-finder-55-32-finder-5-1419654.html?qwer=CjwKCAjwy5rUBhB5EiwAIoAtCrTW0Yr1qkcd8WZsnSEDjjzLlUxvGQzG2MXVMgZf0T0MGnaoYbTYVBoC9OIQAvD_BwE&utm_source=google&utm_medium=cpc&utm_campaign=NL+-+PMAX+-+Brand&utm_id=21568931997&gad_source=1&gad_campaignid=21579213583&gclid=CjwKCAjwy5rUBhB5EiwAIoAtCrTW0Yr1qkcd8WZsnSEDjjzLlUxvGQzG2MXVMgZf0T0MGnaoYbTYVBoC9OIQAvD_BwE)

 ![image](https://forum.revspace.nl/uploads/default/original/2X/e/ed690a51a3858ec79bfa923552819da72c767acd.png)

**5 IRS2092S versterker +80V GND -80V → SUB 12" 4ohm 500wRMS**

[aliexpress.com/p/tesla-landing/index.html?scenario=c\_ppc\_item\_bridge&productId=1005006252662088&\_immersiveMode=true&withMainCard=true&src=google-language&aff\_platform=true&isdl=y&\_randl\_currency=EUR&\_randl\_shipto=NL&src=google&albch=shopping&acnt=272-267-0231&isdl=y&slnk=&plac=&mtctp=&albbt=Google\_7\_shopping&aff\_platform=google&aff\_short\_key=UneMJZVf&gclsrc=aw.ds&&albagn=888888&&ds\_e\_adid=&ds\_e\_matchtype=&ds\_e\_device=c&ds\_e\_network=x&ds\_e\_product\_group\_id=&ds\_e\_product\_id=en1005006252662088&ds\_e\_product\_merchant\_id=107905444&ds\_e\_product\_country=ZZ&ds\_e\_product\_language=en&ds\_e\_product\_channel=online&ds\_e\_product\_store\_id=&ds\_url\_v=2&albcp=23068184797&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad\_source=1&gad\_campaignid=23058135279&gclid=CjwKCAjwhZDUBhBGEiwAbi5bjhf12k0dC\_XyWS8ELkFSVbAFFBvS2gT5Xz2Va5UEhLb-EWPqZd4MfRoCOsIQAvD\_BwE](https://www.aliexpress.com/p/tesla-landing/index.html?scenario=c_ppc_item_bridge&productId=1005006252662088&_immersiveMode=true&withMainCard=true&src=google-language&aff_platform=true&isdl=y&src=google&albch=shopping&acnt=272-267-0231&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&albagn=888888&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=en1005006252662088&ds_e_product_merchant_id=107905444&ds_e_product_country=ZZ&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=23068184797&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gad_campaignid=23058135279&gclid=CjwKCAjwhZDUBhBGEiwAbi5bjhf12k0dC_XyWS8ELkFSVbAFFBvS2gT5Xz2Va5UEhLb-EWPqZd4MfRoCOsIQAvD_BwE)

 ![irs1](https://forum.revspace.nl/uploads/default/original/2X/c/c96479e5e223e4194282e0fe68154cbdfc5275b9.jpeg)  
2xIRFP4227

 ![teh lot](https://forum.revspace.nl/uploads/default/original/2X/3/30d66bc6077fc9e7d78f240e3e29528d2b31d977.jpeg)

ps, de low pass filter is out of scope, deze gaat niet gebruikt worden (gebruik de autoradio filter)

**6 testing**

koelcapaciteit, (vermogen van de voeding en versterker wordt grotendeels door koeling bepaald)  
Versterker gain setting (fixed op 40x input voltage), moet mogelijk voorversterkt worden

**7 assembly**

Installatie in veilige box met adequate koeling

## **Progress:**

**1 Strip**

Heb de versterker uit de box gesloopt en de box goed gesealed.

 ![1](https://forum.revspace.nl/uploads/default/original/2X/8/84847daf11bd1f183c073350c3afb73f62b29181.jpeg)  
zn oude ingewanden

 ![bloody](https://forum.revspace.nl/uploads/default/original/2X/f/f26e71f1b2f9f138174a18250e427a3d3f1424af.jpeg)

**2 Seal**

 ![1c](https://forum.revspace.nl/uploads/default/original/2X/c/c309de107c47b80391d1586e036f5ab564d17a34.jpeg)  
sealing in progress

**3 HP-8**  
binnen

 ![2](https://forum.revspace.nl/uploads/default/original/2X/2/23bcdb6d1f5dd8ae49d998fe98823c7300de09c8.jpeg)  
HP-8 boost converter

 ![hp8-2](https://forum.revspace.nl/uploads/default/original/2X/7/78d33b520d99717a6bcce5f6a4e01fc5113d51de.jpeg)

 ![hp8-3](https://forum.revspace.nl/uploads/default/original/2X/0/0855e6b06869ddbe091384b5be11c0c3f9cf1a19.jpeg)

**4 Consensator bank**

- Weerstanden, relais, film caps, to order

 ![2b](https://forum.revspace.nl/uploads/default/original/2X/f/f4b7f7a2f35285b48101c6b626592682afb18142.jpeg)  
to be modded

**5 IRS 2092S**  
binnen ✅

**6 Testing**

Low power testing max 8A = 100w

Setup

 ![testing-1](https://forum.revspace.nl/uploads/default/original/2X/9/9789c30a41acc4ef2812389dbe2be785b3f6e1e6.jpeg)

 ![4a](https://forum.revspace.nl/uploads/default/original/2X/b/ba963188256aa01e3c6551895ee9bb276d1937f9.jpeg)  
4A @ 80Hz

 ![8A](https://forum.revspace.nl/uploads/default/original/2X/f/f8a5721c441dd6d689dc5df6b16f3101ce4e593a.jpeg)  
8A @ 20-30Hz

Max Temps

HP-8

 ![testing-4](https://forum.revspace.nl/uploads/default/original/2X/8/8ba30c2911daae465d3e68dbc763015b53937d7a.jpeg)

IRS2092

 ![testing-2](https://forum.revspace.nl/uploads/default/original/2X/a/a955df050587848c577a30a7dbbe9aa876be0e12.jpeg)

 ![testing-3](https://forum.revspace.nl/uploads/default/original/2X/2/24bbd46599ab1745f0811dabba5b570451bc4c78.jpeg)

voorlopige conclusie →  
Controller chip IRS2092S krijgt een heatsink  
Drain weerstanden van HP-8 krijgen een heatsink

Waarschijnlijk  
IRS2092S, grote heatsink + fan op huidige heatsink  
HP-8, Fan op mosfet heatsink

---

<div class="post-metadata">

**Author:** ![deacon](https://forum.revspace.nl/user_avatar/forum.revspace.nl/deacon/32/585_2.png) [@deacon](https://forum.revspace.nl/u/deacon)\
**Post date:** [September 4, 2026, 9:42pm UTC](https://forum.revspace.nl/t/een-eigen-voeding-versterker-bouwen-voor-de-oude-12-subwoofer/1029/2 "2026-09-04T21:42:07Z")

</div>

![IMG_5825](https://forum.revspace.nl/uploads/default/original/2X/8/87a9cdc4f9b8cf1c6cd486f1dbf3ad189acac56f.jpeg)