GZ 6.5 coaxial
Banned
Joined: Feb 2021
Posts: 641
Likes: 110
From: Ohio
I have a set of these coaxial w sd 800x4 amp as well. I plan on bridging the amp as well as numerous have stated to run them this way.
I'm curious as to what/where you have your low pass high pass and gain at at. I was told to play around w it but the sweet spot for factory gt (2017) hu w this setup is high pass around 80hrtz and gain at around 9/10 clock.
Fromy readings keeping the gain low will keep the amp from being able to use the full 400 watts
I'm curious as to what/where you have your low pass high pass and gain at at. I was told to play around w it but the sweet spot for factory gt (2017) hu w this setup is high pass around 80hrtz and gain at around 9/10 clock.
Fromy readings keeping the gain low will keep the amp from being able to use the full 400 watts
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Originally Posted by Thatdude596
I have a set of these coaxial w sd 800x4 amp as well. I plan on bridging the amp as well as numerous have stated to run them this way.
I'm curious as to what/where you have your low pass high pass and gain at at. I was told to play around w it but the sweet spot for factory gt (2017) hu w this setup is high pass around 80hrtz and gain at around 9/10 clock.
Fromy readings keeping the gain low will keep the amp from being able to use the full 400 watts
I'm curious as to what/where you have your low pass high pass and gain at at. I was told to play around w it but the sweet spot for factory gt (2017) hu w this setup is high pass around 80hrtz and gain at around 9/10 clock.
Fromy readings keeping the gain low will keep the amp from being able to use the full 400 watts
Banned
Joined: Feb 2021
Posts: 641
Likes: 110
From: Ohio
From my calculations I need to set the gain to match 56.56 volts when hooking up my leads to amps output while playing test cd at 1000hrtz.
Still reading up on this
a
Last edited by Thatdude596; Feb 4, 2021 at 09:35 PM.
Road Warrior
Joined: Jul 2015
Posts: 1,440
Likes: 185
From: Fond du Lac WI
No not running a dsp for two speakers. I plan on using the voltmeter method to match the input/output. I'm just looking for suggestions before I start to tune the amp. Hasnt even been powered up yet
From my calculations I need to set the gain to match 56.56 volts when hooking up my leads to amps output while playing test cd at 1000hrtz.
Still reading up on this
a
From my calculations I need to set the gain to match 56.56 volts when hooking up my leads to amps output while playing test cd at 1000hrtz.
Still reading up on this
a
Banned
Joined: Feb 2021
Posts: 641
Likes: 110
From: Ohio
800 watts amp power 4 ohms is 56.56
will look again online
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
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From: High Point, NC.
Without a dsp, for those speakers 250 watts is plenty of power.
Stellar HDF Member
Joined: Dec 2017
Posts: 3,371
Likes: 689
From: indiana
That is correct and your target volts is 31.6 each speaker.
Banned
Joined: Feb 2021
Posts: 641
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From: Ohio
Yes I was wrong. I needed to take the bridged rms x the 4 ohm speaker. Rms bridged is 400watts x 4 ohms is 1600 and sq root of 1600 is 40.
I know Carlos from nvs garage bagger 77 customs lay n low jefe and others all said dont nees dsp. All also said to run the amp bridged and to set amp where I stated and it would be damn close. Nvs pushed a legit 400 all day long not a hiccup. Thanks for the comments
I know Carlos from nvs garage bagger 77 customs lay n low jefe and others all said dont nees dsp. All also said to run the amp bridged and to set amp where I stated and it would be damn close. Nvs pushed a legit 400 all day long not a hiccup. Thanks for the comments
Last edited by Thatdude596; Feb 5, 2021 at 05:04 AM.
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Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Originally Posted by Thatdude596
Yes I was wrong. I needed to take the bridged rms x the 4 ohm speaker. Rms bridged is 400watts x 4 ohms is 1600 and sq root of 1600 is 40.
I know Carlos from nvs garage bagger 77 customs lay n low jefe and others all said dont nees dsp. All also said to run the amp bridged and to set amp where I stated and it would be damn close. Nvs pushed a legit 400 all day long not a hiccup. Thanks for the comments
I know Carlos from nvs garage bagger 77 customs lay n low jefe and others all said dont nees dsp. All also said to run the amp bridged and to set amp where I stated and it would be damn close. Nvs pushed a legit 400 all day long not a hiccup. Thanks for the comments
Road Warrior
Joined: Sep 2017
Posts: 1,401
Likes: 123
From: Sussex, WI
Brother you can take their comments and run with them if you choose but I'm here to tell you, if you run 400 watts to those speakers, without a DSP you will blow them to hell quick fast and in a hurry!!!! Without a DSP in the mix I would push no more than 250 watts per speaker. This is coming from someone that's not selling you jackshit. Carlos knows his **** but he's gonna get a lot of folks in deep water that think they can emulate what he does in his videos. You cannot run that much power to them without a DSP. Period.