Audio Systems Find answers to all of your stereo, speaker and other audio technology questions here.
Sponsored by:
Sponsored by:

Sound Digital Amps

Thread Tools
 
Search this Thread
 
Old Feb 4, 2020 | 05:46 PM
  #1  
maxburner's Avatar
maxburner
Thread Starter
|
Advanced
Joined: Mar 2012
Posts: 64
Likes: 1
From: Kentucky
Default Sound Digital Amps

Two questions for the group...
  1. Will the SD800.4 (4ohm) bridged handle a set of VO6x9's (4ohm) and a set of PRV NEO 6.5 (4ohm) hook up in parallel? I realize once parralled it brings each set to 2ohm but will the amp support 2ohm and be stable? Right now both sets are hooked up direct 1/2/3/4
  2. I have an SD400.4 (4ohm) that's running 4 horns (ST25/B3) hooked direct 1/2/3/4. I want to add lowers to my bike but ive run out of space under the hood. Can I ditch the B3's, bridge channels 3/4 and run a set of Hertz MPX 165.3 in the lowers which are being added. I could also put the NEO's in the lowers and run 165 in fairing? Which is better?
I also have a DSR-1 installed... Really want lowers! More, more, more, lol

Thanks gang!
 
Reply
Old Feb 4, 2020 | 05:48 PM
  #2  
InthewindMN's Avatar
InthewindMN
Outstanding HDF Member
Joined: Jan 2014
Posts: 2,482
Likes: 239
From: Minnesota
Default

You can’t run a 4ohm amp bridged with a 2ohm load. You would have to get the 2ohm amp for that, or get 8ohm speakers.
 
Reply
Old Feb 4, 2020 | 06:09 PM
  #3  
Tailwind's Avatar
Tailwind
Ultimate HDF Member
Joined: Mar 2015
Posts: 6,446
Likes: 873
From: TEXAS
Default

What sled do u have? I'm certain u will be able to get the correct amp under the hood. That 800.4 @4 just isn't gonna cut it w ur 4 ohm speakers.

T
 
Reply
Old Feb 4, 2020 | 07:13 PM
  #4  
maxburner's Avatar
maxburner
Thread Starter
|
Advanced
Joined: Mar 2012
Posts: 64
Likes: 1
From: Kentucky
Default

Originally Posted by Tailwind
What sled do u have? I'm certain u will be able to get the correct amp under the hood. That 800.4 @4 just isn't gonna cut it w ur 4 ohm speakers.

T
Tail is a 2011 street glide and m

an it’s packed! Lol
 
Reply
Old Feb 4, 2020 | 08:20 PM
  #5  
Adenton528's Avatar
Adenton528
Road Captain
10 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Feb 2016
Posts: 721
Likes: 204
From: Jerseyville, IL
Default

Originally Posted by maxburner
Two questions for the group...
  1. Will the SD800.4 (4ohm) bridged handle a set of VO6x9's (4ohm) and a set of PRV NEO 6.5 (4ohm) hook up in parallel? I realize once parralled it brings each set to 2ohm but will the amp support 2ohm and be stable? Right now both sets are hooked up direct 1/2/3/4
  2. I have an SD400.4 (4ohm) that's running 4 horns (ST25/B3) hooked direct 1/2/3/4. I want to add lowers to my bike but ive run out of space under the hood. Can I ditch the B3's, bridge channels 3/4 and run a set of Hertz MPX 165.3 in the lowers which are being added. I could also put the NEO's in the lowers and run 165 in fairing? Which is better?
I also have a DSR-1 installed... Really want lowers! More, more, more, lol

Thanks gang!
1. No. You'd need the 2 ohm 800.4
2. No. The 3/4 bridge is not stable to 2 ohm. I believe the hertz are 4 ohm. You could however find an 8 ohm coax such as the mmats. That would allow you to get rid of the B3's and run the ST25 on 1 and 2 in stereo and parallel bridge the mmats on 3/4 which would be about 200 watts to the pair or 100 watts each which will suffice.

If you're happy with the VO's and PRV, just switch the 800.4 out.
 
Reply
Old Feb 5, 2020 | 08:25 AM
  #6  
cshocker's Avatar
cshocker
Stellar HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2016
Posts: 2,216
Likes: 672
From: Andover, MN
Default

Nice work packing all that in there. I ran a 2ohm SD 800.4 to push same set of PRV's and set of JL 8.8's (all bridged and parallel). Amp did very well at pushing all of it (200w/speaker)
 
Reply
Old Feb 5, 2020 | 11:27 AM
  #7  
maxburner's Avatar
maxburner
Thread Starter
|
Advanced
Joined: Mar 2012
Posts: 64
Likes: 1
From: Kentucky
Default

Originally Posted by cshocker
Nice work packing all that in there. I ran a 2ohm SD 800.4 to push same set of PRV's and set of JL 8.8's (all bridged and parallel). Amp did very well at pushing all of it (200w/speaker)
I’m swapping over to 800 2ohm, it will provide greater flexibility across the board. I Also like the idea Mmats 8ohm bridged, paralleled on the Sd400. Anyone run this combo?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bzmannn
Audio Systems
4
Oct 15, 2018 07:33 AM
cfave
Audio Systems
5
Apr 11, 2018 12:21 PM
cash64
Audio Systems
14
Sep 23, 2016 03:28 PM
billablehours
Audio Systems
20
Jul 27, 2016 03:25 PM
BlackPearl#1
Audio Systems
5
May 27, 2015 07:44 AM




All times are GMT -5. The time now is 01:31 AM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE