MaxBeast4Z Posted February 21, 2019 Report Share Posted February 21, 2019 I got a pair of ''JBL P1220D D2'' two of them. It's hard to find proper information about the subwoofers. I need to know what type of amp I really need to get the full power out of the subwoofers I'm looking for power. I'm still pretty new to this so I'm not an expert Link to comment Share on other sites More sharing options...
Joshdashef Posted February 21, 2019 Report Share Posted February 21, 2019 Unfortunately you limited your power options by using dual 2 ohm subwoofers. You can only wire this pair into a final ohm load of either 2 or 8 since I’m guessing your electrical won’t handle a 0.5 ohm load, also that low can cause your amp to be damaged. ———————————— Here is a tool for seeing how to wire a subwoofer to a nominal ohm load (before the subs begin to move) aka what your amp sees https://rockfordfosgate.com/support/wiring-wizard/ wiring diagrams for two dual 2 ohm subwoofers —————————— Those subs are rated at 400 watts rms and 1600 watts max. The important number is rms. With two you want to find an amp that will power each sub at atleast 3/4 power imo but preferably you over power the subs since the impedance rise will lower the output of the amp anyways to its rated 4 ohm usually. Therefore you need atleast (400 + 400) * .75= 600 and at most (400 + 400)*1.25= 1000 —————————— brand wise there are tons to name off that are good quality imo. DC, JL, Rockford Fosgate, sundown, crescendo, etc. here is one that’s a decent price for 800 watts rms at 2 ohms and is stable at 1 ohms if you ever switch subs Rockford Fosgate Prime 1,200-Watt Class-D 1-Channel Amplifier https://www.amazon.com/dp/B004T0YAMG/ref=cm_sw_r_cp_api_i_XnHBCb02XFDFA sorry kinda long but hope this helps explain some things SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
MaxBeast4Z Posted February 24, 2019 Author Report Share Posted February 24, 2019 On 2/20/2019 at 10:00 PM, Joshdashef said: Unfortunately you limited your power options by using dual 2 ohm subwoofers. You can only wire this pair into a final ohm load of either 2 or 8 since I’m guessing your electrical won’t handle a 0.5 ohm load, also that low can cause your amp to be damaged. ———————————— Here is a tool for seeing how to wire a subwoofer to a nominal ohm load (before the subs begin to move) aka what your amp sees https://rockfordfosgate.com/support/wiring-wizard/ wiring diagrams for two dual 2 ohm subwoofers —————————— Those subs are rated at 400 watts rms and 1600 watts max. The important number is rms. With two you want to find an amp that will power each sub at atleast 3/4 power imo but preferably you over power the subs since the impedance rise will lower the output of the amp anyways to its rated 4 ohm usually. Therefore you need atleast (400 + 400) * .75= 600 and at most (400 + 400)*1.25= 1000 —————————— brand wise there are tons to name off that are good quality imo. DC, JL, Rockford Fosgate, sundown, crescendo, etc. here is one that’s a decent price for 800 watts rms at 2 ohms and is stable at 1 ohms if you ever switch subs Rockford Fosgate Prime 1,200-Watt Class-D 1-Channel Amplifier https://www.amazon.com/dp/B004T0YAMG/ref=cm_sw_r_cp_api_i_XnHBCb02XFDFA sorry kinda long but hope this helps explain some things Is the Pioneer GM-D8601 I have this amplifier is this a good one or I should get another one? The Pioneer amp is a Class D 1600 watt single Channel would it be better then the Rockford Fosgate. https://www.amazon.com/Pioneer-GM-D8601-Class-Amplifier-Remote/dp/B00CFX58YI https://www.pioneerelectronics.com/PUSA/Car/Amplifiers/GM+Digital+Series/GM-D8601 Link to comment Share on other sites More sharing options...
Joshdashef Posted February 24, 2019 Report Share Posted February 24, 2019 The Rockford amp I linked will give you 800 watts rms at 2 ohms while the pioneer you link only does 500 at 2 ohms. Since you can’t run at 1 ohm then you should get the most power you can at 2 ohms. SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
Dragonsyph Posted February 24, 2019 Report Share Posted February 24, 2019 One of those amps with the regulated power that does same watts at 1 or 2 ohm like the bcp rockfords might be a good choice but there are costly ♦ Sundown NSV4 18" + Sundown SALT-4 Baby ♦ MechMan Elite 370a + XS3100 - XP3000 ♦ SHCA 1/0 OFC(blue) + SMD Fuse Holders(blue) ♦ Pioneer AVH-2440NEX + SHCA Pro RCA Link to comment Share on other sites More sharing options...
Raf415 Posted February 24, 2019 Report Share Posted February 24, 2019 I have a Lexus es300h 2015 with the non Mark Levinson factory audio. It's sounds OK... But I need more base. Is there anyway to upgrade the stock 8inch woofer In the rear deck? This hybrid has half a trunk... So I'm trying to save space with the stock location. Any suggestions or thoughts on this are welcome. I understand that the stock system is powered by factory amps hidden in the car somewhere. I know I will have to grab a full range speaker signal to feed a new amp for a more powerful sub.... Any info or advice on this? Thanks Link to comment Share on other sites More sharing options...
MaxBeast4Z Posted February 26, 2019 Author Report Share Posted February 26, 2019 On 2/24/2019 at 11:47 AM, Raf415 said: I have a Lexus es300h 2015 with the non Mark Levinson factory audio. It's sounds OK... But I need more base. Is there anyway to upgrade the stock 8inch woofer In the rear deck? This hybrid has half a trunk... So I'm trying to save space with the stock location. Any suggestions or thoughts on this are welcome. I understand that the stock system is powered by factory amps hidden in the car somewhere. I know I will have to grab a full range speaker signal to feed a new amp for a more powerful sub.... Any info or advice on this? Thanks You have to make your own posts replying to this one won't really get you anything in terms of response was not enough people looking at it. Link to comment Share on other sites More sharing options...
Joshdashef Posted March 1, 2019 Report Share Posted March 1, 2019 On 2/24/2019 at 11:47 AM, Raf415 said: I have a Lexus es300h 2015 with the non Mark Levinson factory audio. It's sounds OK... But I need more base. Is there anyway to upgrade the stock 8inch woofer In the rear deck? This hybrid has half a trunk... So I'm trying to save space with the stock location. Any suggestions or thoughts on this are welcome. I understand that the stock system is powered by factory amps hidden in the car somewhere. I know I will have to grab a full range speaker signal to feed a new amp for a more powerful sub.... Any info or advice on this? Thanks Read deck subs suck no way to get good bass. Get a all in one subwoofer setup if you want simple. Rockford has some and they are nice SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.