Help needed in HP & LP settings

[Harveynorman]

Sub LP @ 50hz

Front Comp HP @ 50hz

Rear Comp HP @ 63hz

 

Sub LP @ 80hz

Front Comp HP @ 50hz

Rear Comp HP @ 63hz

 

Which will be a better setting? Passive setup, 10" Sub in sealed enclosure, 2 way comp tweeter on dash mid driver at door. Amp Full range with only HU to HP and LP. Front comp speaker 33hz - 22khz

and rear comp 63hz - 20khz

 

Any1 can help?

[User12343]

for sure paper specs won't be able to tell u which is the best option. must sit in and listen and decide.

[Sarong1]

Have you tried both? Which one sound more natural?

[Harveynorman]

Seems like the front switch to full range sounds the natural with the sub. But I'm jus curious whether how acurate r these specs stated on our equipment.

 

Will switching to full range spoil the front comp in the long run? Lets say if the spec is 22khz - 33hz. Will the 20hz>33hz spoil comp running on passive crossovers?

[Harveynorman]

All this happened when I finish upgrading my Front comp and amp. Trying very hard to tune back to my previous peference.

 

Really love the sub pumping those bass notes when i LP it @ 80hz but then the vocals get muffled in this process. LP @ 50hz the bass sounds hollow especially the resonaince is gone. Currently on twin 10" in sealed enclosures.

[Sarong1]

You can restrict the signal that are going into your front component thru your HU or amplifier crossover. Remember, you can only choose to tweak either one, on the HU's crossover or, on your amplifier's crossover. A good handshake on the HP of your front component and the LP of your sub is critical in getting a soothing lower midbass and sub response.

[Harveynorman]

Yes sifu, understood. gd handshake of the hp of the front comp and lp of the sub 4 better mid bass and sub.

[Sarong1]

If you choose to use the crossover on the HU, which is only logical to do so, you have to set your amplifier crossover to FLAT. Try not to use any of those added features like bass boast on the anplifiers, if need to, use your HU to control all.

 

p.s. I am not Sifu lah, I am also learning.

[Harveynorman]

Yes i always make it a point to switch off those bass boast to get the best audio reproduction. I'm jus curious is it always neccessary to use HP for our front components when it comes to car audio? (lets say running in Passive) I jus find that there r some details being left out when u start to filter those freq. R there setups tat has full range on front comps?

[Sarong1]

Theorectically, you can play full range on your front components. Full range being what your HU is capable of delivering to you, typically from 20Hz to 20KHz. But be caution...

 

If you are without a subwoofer, you will have to set your HP for your front component to what you speakers can handle or risk damaging it. (you can get this info from your speakers' spec). Unless your midbass can handle freq below 50Hz well, I suggest you apply HP on your front component while letting the subwoofer play its part. Once you don't set HP, you will realise that your midbass is playing freq it was not made to produce, you will hear monotonous lower midbass range coming out from your midbass...and soon...your midbass will be gone...

[Harveynorman]

While the prob is the paper spec of the speaker stated 33hz - 22khz which is very unbelievable. tat y veri tempted to play Full range on them.

[Sarong1]

You have to understand what freq the size of a 6.5" midbass can produce, i.e. the wavelength vis the size of the driver's diaphragm. No doubt there are some midbass drivers that has good low department, but the 33Hz you have on that driver could probably be the freq in which it rolls off. Check the spec for the table which shows the responses of the driver at the lower end and also check the Fs (Resonance Freq) of the midbass. Of course, I would like the midbass to go as low as possible, but there will bound to be sacrifice. Which is why subwoofer has to come in to complement the ranges from maybe 63Hz down to what freq the sub can handle.

Edited July 9, 2007 by Sarong1