Amp warmth?
Ultimate HDF Member
Joined: Mar 2015
Posts: 6,446
Likes: 873
From: TEXAS
Originally Posted by travelingypsye
I have come to the conclusion that these amps (bt4250, focal sport) are over powering the speakers causing a ton of distortion on the low end and very piercing highs on the top. These amp have a ton of power and we are throwing it at speakers 2x the power they were intended and built for. The highs can be reduced by backing off the gain but the distortion on the low end can only be stopped by increasing the hp filter. When you do that, there is only the highs and no chance of any lows do to the over power. Hence I am now running the tm400x4ad and no filters in place instead of the focal I had. I now can have all the low end any 6.5 can give. The miiles 6x9 also rock the back end. Yea I loose some db's in the volume but gladly give that up for a fuller, not so damn crisp tinny sound. As I have said, not all watts are created equal and I can still hear it at 70. Some food for thought.
Just sayin!!!
T
Stellar HDF Member
Joined: Dec 2017
Posts: 3,367
Likes: 689
From: indiana
I totally agree with that. If you go all pro setup with speaks that are designed for power then you are already subjected to more crisp sounds. For the average joe who comes here looking to just upgrade his scooter tunes with coax or components, these power making monsters produce very crisp sounds that is a drastic change from the stock hd systems. Some ppl like it but most just want the ability to hear their tunes at speed because they cant with the stock hd setups. Finding that perfect combo is getting harder to do because of all the options out there. Hell, at one time mtx 5.25 with a Jensen amp was the best you could get. J&m complete systems were highly rated also at one time. Those days are so gone as sled audio is finally gathering attention from audio manufacturers and that damn unicorn is now having offspring.......
Road Captain
Joined: Oct 2011
Posts: 738
Likes: 29
From: Smithfield, VA
I think sled audio is one of those cases where having beaming form your sort might not be a bad idea. Our speakers are mostly pointed right at us and the more direct the sound waves are the better we will hear them at speed. However, what that does to the warmth of the sound has to also be taken into account.
Grand HDF Member
Joined: Sep 2017
Posts: 3,661
Likes: 896
From: Southern Virginia
This is an interesting thread that I think a lot of us newcomers could learn from.
Gypsye, do you know if the Rockford tm400x4ad is kind to FM reception on the pre-Rushmore head units?
Some day in the future I am thinking of adding 6x9s of some kind in the lids with a dedicated amp and maybe adding a smaller two channel amp to get the pod speakers off of the PN4.1000d in the fairing (they are in parallel on its rear channel with the lower speakers). That way I would have more options as far as amps for the front four speakers that may be better sounding and possibly kinder to FM reception.
I'm just tinkering with ideas at the moment so threads like this are helpful.
Gypsye, do you know if the Rockford tm400x4ad is kind to FM reception on the pre-Rushmore head units?
Some day in the future I am thinking of adding 6x9s of some kind in the lids with a dedicated amp and maybe adding a smaller two channel amp to get the pod speakers off of the PN4.1000d in the fairing (they are in parallel on its rear channel with the lower speakers). That way I would have more options as far as amps for the front four speakers that may be better sounding and possibly kinder to FM reception.
I'm just tinkering with ideas at the moment so threads like this are helpful.
Road Captain
Joined: Mar 2014
Posts: 668
Likes: 34
From: Florida
I think sled audio is one of those cases where having beaming form your sort might not be a bad idea. Our speakers are mostly pointed right at us and the more direct the sound waves are the better we will hear them at speed. However, what that does to the warmth of the sound has to also be taken into account.
Outstanding HDF Member
Joined: Jan 2014
Posts: 2,482
Likes: 239
From: Minnesota
I have come to the conclusion that these amps (bt4250, focal sport) are over powering the speakers causing a ton of distortion on the low end and very piercing highs on the top. These amp have a ton of power and we are throwing it at speakers 2x the power they were intended and built for. The highs can be reduced by backing off the gain but the distortion on the low end can only be stopped by increasing the hp filter. When you do that, there is only the highs and no chance of any lows do to the over power. Hence I am now running the tm400x4ad and no filters in place instead of the focal I had. I now can have all the low end any 6.5 can give. The miiles 6x9 also rock the back end. Yea I loose some db's in the volume but gladly give that up for a fuller, not so damn crisp tinny sound. As I have said, not all watts are created equal and I can still hear it at 70. Some food for thought.
Road Captain
Joined: Oct 2011
Posts: 738
Likes: 29
From: Smithfield, VA
Exactly which would probably degrade the sound quality. So I guess a more "directional, focus designed" speaker at the right volume and frequencies would be the ticket Maybe that's why I can hear the tweeters on my TS-6900 Pros at speed. They are basically pointed right at my ears LOL
Stellar HDF Member
Joined: Dec 2017
Posts: 3,367
Likes: 689
From: indiana
This is an interesting thread that I think a lot of us newcomers could learn from.
Gypsye, do you know if the Rockford tm400x4ad is kind to FM reception on the pre-Rushmore head units?
Some day in the future I am thinking of adding 6x9s of some kind in the lids with a dedicated amp and maybe adding a smaller two channel amp to get the pod speakers off of the PN4.1000d in the fairing (they are in parallel on its rear channel with the lower speakers). That way I would have more options as far as amps for the front four speakers that may be better sounding and possibly kinder to FM reception.
I'm just tinkering with ideas at the moment so threads like this are helpful.
Gypsye, do you know if the Rockford tm400x4ad is kind to FM reception on the pre-Rushmore head units?
Some day in the future I am thinking of adding 6x9s of some kind in the lids with a dedicated amp and maybe adding a smaller two channel amp to get the pod speakers off of the PN4.1000d in the fairing (they are in parallel on its rear channel with the lower speakers). That way I would have more options as far as amps for the front four speakers that may be better sounding and possibly kinder to FM reception.
I'm just tinkering with ideas at the moment so threads like this are helpful.
Stellar HDF Member
Joined: Dec 2017
Posts: 3,367
Likes: 689
From: indiana
I believe it takes more power (voltage) to create lows than highs. I have noticed when my battery starts dropping when tinkering in the garage my lows will start to distort. Bring the voltage up and the lows get crisp again. Maybe distorted lows on these higher powered amps is a sign of poorly managed power or lack of power internally on these.
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
One of the hardest things to achieve is good sound at high volume from a speaker that's 2ft in front of your face. Ever notice how much better your setup sounds when your 20ft behind it? There will always be a chase for that mythical creature that creates that perfect sound...up close.