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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > What are the best 4" Component speakers?



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      05-08-2013, 09:16 AM   #45
rightaway
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So if I upgrade my amp to a PDX5 with my stock hifi radio, will it sound better or is there a chance it could sound worse with out a processor. I have a Alpine H701 processor but its a pain to hook up without cutting into the harness and running all new wires
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      05-08-2013, 10:18 AM   #46
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You mean if you upgrade the amp without upgrading the speakers? And run the underseats in mono? Not worth it. Run them in stereo and upgrade your front 6. Want to sell your 701?
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      05-08-2013, 06:48 PM   #47
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Quote:
Originally Posted by rightaway View Post
So if I upgrade my amp to a PDX5 with my stock hifi radio, will it sound better or is there a chance it could sound worse with out a processor. I have a Alpine H701 processor but its a pain to hook up without cutting into the harness and running all new wires
That processor accepts balanced inputs. It wouldn't be hard to install both the processor and amp using Technics harness.

I don't see how adding a processor and more power could possibly make it sound worse. I highly doubt you'd notice a difference having the underseats in mono, but if you are concerned about that you could always get a 6 channel amp instead.

You do have to be careful with your gains though, and as VP said you'd get much better results with better speakers.
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      05-08-2013, 11:43 PM   #48
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I ran the Jl xd/600/6 on the stocks for a few days.

I ran the Jl xd/600/6 on the stocks for a few days.
And it does clean up the mid range and allow you turn the system
up a little without as much harshness and there is actual bass, although a bit
muddy .
But good aftermarket speakers add another whole level of depth and definition
and presence.
Also with the Technic Harness or some form of it you should be
able to get the amp and processor in without cutting any wires.

Technic has done some systems with just and amp upgrade
and left it at that.

I don't see how you are going to be able to use the processor without an alpine head unit though.

Last edited by ctuna; 05-09-2013 at 05:38 AM.
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      05-09-2013, 12:43 AM   #49
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I ran the Jl xd/600/6 on the stocks for a few days.
And it does clean up the mid range and allow you turn the system
up a little without as much harshness and there is actual bass, although a bit
muddy .
But good aftermarket speakers add another whole level depth and definition
and presence.
Also with the Technic Harness or some form of it you should be
able to get the amp and processor in without cutting any wires.

Technic has done some systems with just and amp upgrade
and left it at that.

I don't see how you are going to be able to use the processor without an alpine head unit though.
That processor accepts balanced inputs and he has hifi. The RCA cables from technics harness just need to be plugged in to the processor. The amp connects to the processor via RCA's and the amp is connected to the speakers using the remaining wires in technics harness. Simple.

You do need the RUX-C701 controller though if you aren't using an Alpine head unit.
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      05-09-2013, 07:03 PM   #50
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I pm technics on this forum a few days ago but never heard back. I do have the rux c701 controller
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      05-12-2013, 03:13 AM   #51
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I went with Cdt Audio CL 42 $140 shipped and I really like them.

Last edited by tmac01; 06-09-2013 at 01:20 PM.
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      05-12-2013, 01:24 PM   #52
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I went with Cdt Audio CL 41 $140 shipped and I really like them.
where did you buy them from? how was the install? did they bolt right in?
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      05-13-2013, 10:36 AM   #53
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I went with Cdt Audio CL 41 $140 shipped and I really like them.

Yeah I got these too and am very happy with them. You got an excellent price. I paid 199 for them.

They fit the e90 with out a problem, have a nice silk tweeter and according the specs can go down to 100hz,although I have mine set to 150. Once I tuned them with true rta and matched the levels to the Jehnerts underseats. They sound fantastic.

On a different note, I was contemplating starting a thread for truerta (or any other rta program) curves. But I'm not sure if many people use rta to tune on here.
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      05-13-2013, 12:28 PM   #54
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On a different note, I was contemplating starting a thread for truerta (or any other rta program) curves. But I'm not sure if many people use rta to tune on here.
I only use it as a starting point and then adjust by ear. Primarily, I just use it to see if there are any large peaks or dips in the response and adjust those out. After that, it's all minor adjustments by ear.
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      05-13-2013, 12:53 PM   #55
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I only use it as a starting point and then adjust by ear. Primarily, I just use it to see if there are any large peaks or dips in the response and adjust those out. After that, it's all minor adjustments by ear.
Yeah same here. I used o-scope to get the clipping point of the HU, then check for clipping out of the processor. I don't use it for amp gains though, I do that by ear with tones (10db overlap).

Then use the rta to set the crossover point for the doors and, like you said, take care of any dips or peaks.

It works for me.

I was just curious to see curves from other BMW folk, to see if the problem areas are the same.
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      06-05-2013, 08:12 PM   #56
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Yeah Dannyboy the seller on EBay was asking $199 then in a week went up to $229 I offered $140 through Best Offer and got them and they fit perfect and sound great !!!!!
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      06-05-2013, 08:24 PM   #57
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Yeah Dannyboy the seller on EBay was asking $199 then in a week went up to $229 I offered $140 through Best Offer and got them and they fit perfect and sound great !!!!!
Do you have the ebay link?
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      06-06-2013, 12:32 AM   #58
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Do you have the ebay link?
I bought them from a company on EBay called Techronics but they no longer sell them on EBay only on their website. I offered $140 and they accepted I just looked up the Paypal invoice to be sure. You might try calling them they have an 800 number. Hope this helps.
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