2012 Ultra Classic pre amp EQ add?
Thread Starter
|
Novice
Joined: Mar 2015
Posts: 17
Likes: 0
From: Luxemburg, WI
2012 Ultra Classic pre amp EQ add?
A buddy of mine installed a pair of Metra TCLOC2 line level convertors to his stock HK. From there he added a Cerwin Vega B54 amp and two pair of Infiniti Kappa 62.11 6.5" speakers. Sounds is clean and loud, but the midrange level is a bit higher than he'd like. Would like to add an EQ but see a problem.
Problem is most pre-amp EQ's I've seen have only one RCA input active at a time (the other being aux or cd). Since each line level convertor leads to two female RCA outputs, this means there are four RCA cables to input to an EQ (or amp for that matter).
Can you combine these two separate RCA's to a single RCA, then feed that RCA to a pre-amp EQ (or amp for that matter)? Combining those line level converted RCA cables to one RCA will surely eliminate any front/rear fader options (which is still ok). Pre-amp EQ's have both front/rear outputs so hooking up left/right channels of the CV B54 amp wouldn't be an issue.
I know enough to be dangerous, so input from the audiophiles would be appreciated. I told him to replace the head unit, but for now he simply wants to adjust the midrange, which is the reason for this question.
Looking forward to your input!!
Problem is most pre-amp EQ's I've seen have only one RCA input active at a time (the other being aux or cd). Since each line level convertor leads to two female RCA outputs, this means there are four RCA cables to input to an EQ (or amp for that matter).
Can you combine these two separate RCA's to a single RCA, then feed that RCA to a pre-amp EQ (or amp for that matter)? Combining those line level converted RCA cables to one RCA will surely eliminate any front/rear fader options (which is still ok). Pre-amp EQ's have both front/rear outputs so hooking up left/right channels of the CV B54 amp wouldn't be an issue.
I know enough to be dangerous, so input from the audiophiles would be appreciated. I told him to replace the head unit, but for now he simply wants to adjust the midrange, which is the reason for this question.
Looking forward to your input!!
Ultimate HDF Member
Joined: Oct 2012
Posts: 6,621
Likes: 412
From: Indianapolis IN.
A buddy of mine installed a pair of Metra TCLOC2 line level convertors to his stock HK. From there he added a Cerwin Vega B54 amp and two pair of Infiniti Kappa 62.11 6.5" speakers. Sounds is clean and loud, but the midrange level is a bit higher than he'd like. Would like to add an EQ but see a problem.
Problem is most pre-amp EQ's I've seen have only one RCA input active at a time (the other being aux or cd). Since each line level convertor leads to two female RCA outputs, this means there are four RCA cables to input to an EQ (or amp for that matter).
Can you combine these two separate RCA's to a single RCA, then feed that RCA to a pre-amp EQ (or amp for that matter)? Combining those line level converted RCA cables to one RCA will surely eliminate any front/rear fader options (which is still ok). Pre-amp EQ's have both front/rear outputs so hooking up left/right channels of the CV B54 amp wouldn't be an issue.
I know enough to be dangerous, so input from the audiophiles would be appreciated. I told him to replace the head unit, but for now he simply wants to adjust the midrange, which is the reason for this question.
Looking forward to your input!!
Problem is most pre-amp EQ's I've seen have only one RCA input active at a time (the other being aux or cd). Since each line level convertor leads to two female RCA outputs, this means there are four RCA cables to input to an EQ (or amp for that matter).
Can you combine these two separate RCA's to a single RCA, then feed that RCA to a pre-amp EQ (or amp for that matter)? Combining those line level converted RCA cables to one RCA will surely eliminate any front/rear fader options (which is still ok). Pre-amp EQ's have both front/rear outputs so hooking up left/right channels of the CV B54 amp wouldn't be an issue.
I know enough to be dangerous, so input from the audiophiles would be appreciated. I told him to replace the head unit, but for now he simply wants to adjust the midrange, which is the reason for this question.
Looking forward to your input!!
Hopefully he follows your advice and goes aftermarket.
Grand HDF Member
Joined: Sep 2017
Posts: 3,846
Likes: 998
From: Southern Virginia
I told him to replace the head unit, but for now he simply wants to adjust the midrange, which is the reason for this question.
I CAN tell you that the signal is clean. I can run my volume up as high as I want to without noticeable distortion. I can also add a lot of bass and treble with the controls to "lessen" the midrange so to speak.
If he went that route it would also allow him to ditch the line output converters which I would imagine could be shaping the signal somewhat.
Maybe someone else can testify as to difference in SQ between the speaker level and line level outputs on the HK head units.
6th Gear
Joined: Jan 2019
Posts: 14
Likes: 1
From: South Carolina
A buddy of mine installed a pair of Metra TCLOC2 line level convertors to his stock HK. From there he added a Cerwin Vega B54 amp and two pair of Infiniti Kappa 62.11 6.5" speakers. Sounds is clean and loud, but the midrange level is a bit higher than he'd like. Would like to add an EQ but see a problem.
Problem is most pre-amp EQ's I've seen have only one RCA input active at a time (the other being aux or cd). Since each line level convertor leads to two female RCA outputs, this means there are four RCA cables to input to an EQ (or amp for that matter).
Can you combine these two separate RCA's to a single RCA, then feed that RCA to a pre-amp EQ (or amp for that matter)? Combining those line level converted RCA cables to one RCA will surely eliminate any front/rear fader options (which is still ok). Pre-amp EQ's have both front/rear outputs so hooking up left/right channels of the CV B54 amp wouldn't be an issue.
I know enough to be dangerous, so input from the audiophiles would be appreciated. I told him to replace the head unit, but for now he simply wants to adjust the midrange, which is the reason for this question.
Looking forward to your input!!
Problem is most pre-amp EQ's I've seen have only one RCA input active at a time (the other being aux or cd). Since each line level convertor leads to two female RCA outputs, this means there are four RCA cables to input to an EQ (or amp for that matter).
Can you combine these two separate RCA's to a single RCA, then feed that RCA to a pre-amp EQ (or amp for that matter)? Combining those line level converted RCA cables to one RCA will surely eliminate any front/rear fader options (which is still ok). Pre-amp EQ's have both front/rear outputs so hooking up left/right channels of the CV B54 amp wouldn't be an issue.
I know enough to be dangerous, so input from the audiophiles would be appreciated. I told him to replace the head unit, but for now he simply wants to adjust the midrange, which is the reason for this question.
Looking forward to your input!!
Grand HDF Member
Joined: May 2014
Posts: 3,843
Likes: 1,174
From: florida
best bet is to change the dead unit to an aftermarket one with the desired features, or to use a dsp. speaker wire(high level) input into the dsp, then rca to power amp, then amp to speakers. If you want to try to experiment with lesser cost eq units, there are sveral that 4 channel input. One loc set up for front channel and one for rear, fade control will be retained.
m
m
Grand HDF Member
Joined: Sep 2017
Posts: 3,846
Likes: 998
From: Southern Virginia
could you tell me the process of hooking up a line converter to my 2012 Harley Davidson Ultra Classic to my stock head unit
In order to hook up the line output converters you will need to get access to the speaker wires for the front and rear speaker wires and connect them to it. The front should be easy to get to but the rears may require either cutting into the harness or running speaker wires back from the rear speakers. It was this very scenario that convinced me to go ahead and send my HK head unit to Iron Cross Audio and have them install preamp outputs on it. I have never regretted that decision. It allows me to plug directly into any amp or DSP I want to. The only downside I noticed was a pop when I turned the head unit on and also when I turned it off. This was caused by a DC pulse being sent through the RCA outputs of the head unit. I got a pair of cheap PAC SNI-1 ground loop isolators and put on each set of preamp outputs and it cleaned it right up.
I guess the advice I would offer is if you want to keep the stock Harley functions such as the CB, intercom, weather band and AVC then work with your stock head unit. Many of us have gotten the preamp outputs installed by Iron Cross with good results.
If you don't really care about the HD features you would probably be better off getting a good aftermarket head unit. That way you get modern conveniences like Bluetooth and the ability to play MP3s from USB thumb drives. I have heard that the Sony MEX-M71BT
is a good budget unit for these older bikes. I think it has enough EQ controls to where you may not feel the need for a DSP from what I have heard.
Thread
Thread Starter
Forum
Replies
Last Post
