Help | Crossover Design

[Amateur_Audiophile]

Hello -

i started a journey of making 2.2 system to play with my DENON amplifier and CD player. i bought following speakers
Peerless - 5.25" Kevlar Cone Woofer - M13KH
Peerless - 26mm Silk Dome Tweeter - TL26SG
I was having Bolton make subwoofer to be used in subwoofers.

i bought audio grade caps from parts-express and bought insulated copper wire (18 AWG) to make inductors.
I tried various crossovers but I am not happy with the results i got.

anyone in Gurgaon who can help me to configure some good crossovers or i should go for active crossovers?

Thanks in advance.
Manoj

 

[ukjeyaraj]

If you post the cross-over design, may be some of our experts will try and help you in tweaking the cross-over design.

BTW how did u design the cross-over? It will be more helpful if you share the box design too. Also spell out what do you find lacking in the current config

 

[dr_Sunil_Das]

Hello -

i started a journey of making 2.2 system to play with my DENON amplifier and CD player. i bought following speakers
Peerless - 5.25" Kevlar Cone Woofer - M13KH
Peerless - 26mm Silk Dome Tweeter - TL26SG
I was having Bolton make subwoofer to be used in subwoofers.

i bought audio grade caps from parts-express and bought insulated copper wire (18 AWG) to make inductors.
I tried various crossovers but I am not happy with the results i got.

anyone in Gurgaon who can help me to configure some good crossovers or i should go for active crossovers?

Thanks in advance.
Manoj

Go in for active crossover. You can do endless tweaking with it till you reach Audio Nirvana. Also if you can opt for Bi-amp, the system will be hard to beat with even 2X systems from various brands.


Dr. Sunil

 

[kanwar]

Go for actives, you will love it


What type of box design you are going for?

 

[aniruddha82]

Hello DIYers,
I need help in determining crossover frequency for Peerless M13KH. Can anyone who have tried this driver share their experiences?
I plan to use active crossover, with highpass at 72Hz and Lowpass at 3410Hz.
I am not sure if practically it is fine to cross it at 3410Hz, FR graph shows flat response till 5kHz.
http://theaudiocrafts.com/image/data/m13kh-g.jpg

Thanks,
Aniruddha

 

[aniruddha82]

I have heard/read lot of good reviews about M13KH.
I bought a pair of same for bookshelf and just tried it without any crossover in a sealed box of 12litre. It sounds pathetic, even worse than local speakers.
Is it normal? Can I expect good sound out of it after I put a active crossover ?
I am confused, please help

 

[hifiramr]

I think you need to check mini dsp design check below link

Stereo 2 Way Xover

for more details check below this is what you need from my observation

http://www.tnt-audio.com/sorgenti/minidsp_e.html

 

[saheb11123]

If you want to go active then you will need to make a pair of 2 way active crossovers.
and You will need 4 amplifiers.

 

[aniruddha82]

Thanks for the reply hifiamr and saheb.
I will try minidsp and will update.

Have anyone tried M13KH with crossover at 3-4khz?

 

[NakTech]

Hi,
3KHz to 3.5KHz Should be ok with these speakers. But the sensitivity of the LF is about 89dB and the HF is about 94. So there has to be a minimum of 5 dB attenuation in the crossover for the HF. Actual requirement has to be determined by experimenting. Else the result would be very weak bass and harsh HF. The cabinet has to be well designed for the LF driver as well for good results...

 

[sunilj]

Besides the MiniDSP, have you sorted the box design ?

 

[sudhirbhosale]

I used same tweeter but other mid-woofer from peerless. I tried two crossover 2600Hz - bright/sharp. Then 3900Hz - Got Thicker sound but good bass. Now going to try 3300Hz (dont get capacitor of 8 mf hence would do with combination of 6.8+1).

I used simple 1 capacitor and 1 inductor as I like simplicity . Please make sure that you use good quality speaker cable. Else your judgement may go wrong as bad cable would suppress some frequencies and you blame crossover.
Same thing happened to me

 

[saikatbiswas82]

Just curious... How can we justify a $105 minidsp putting against a INR 1600 driver? :sad:

 

[saheb11123]

I back saikat. There are loe pass n high pass diy design

 

[keith_correa]

Just curious... How can we justify a $105 minidsp putting against a INR 1600 driver? :sad:

So what cost is "justifiable" for INR1600? INR160? INR16? INR1.6?

 

[keith_correa]

If you want to go active then you will need to make a pair of 2 way active crossovers.
and You will need 4 amplifiers.

4 monoblocks or 4 stereo amps?

 

[saikatbiswas82]

So what cost is "justifiable" for INR1600? INR160? INR16? INR1.6?

There is no such tangible figure for the word "justifiable" here.

Likewise we don't have the answer for the question either - "How many roads must a man walk down before you call him a man?"

 

[keith_correa]

Likewise we don't have the answer for the question either - "How many roads must a man walk down before you call him a man?"

Ask Mr. Zimmerman. He knows. :indifferent14:

 

[aniruddha82]

I tried cheaper option and used this foo_dsp_xover

I tried one channel with various crossover frequencies at 24db/oct, starting from 1200 to 2200.
Speakers were Peerless M13KH aand TL25SN powered by Dayton APA150 Stereo Amplifier, Right channel for woofer and Left for tweeter.

Tweeter becomes harsh at lower crossover frequency and Woofer becomes harsh(cone breakup) at higher crossover frequencies. I am not satisfied with any crossover frequency between 1200 to 2200. Looks like making a 3 way is the only way forward.
However I am impressed with the bass considering this is only 5.25 inch woofer.
Please suggest a good midrange for this. I am thinking for DM50AN (750hz-3500Hz) and will use SR10DT tweeter instead of TL25SN. Any other options?

Thanks,
Anirudha

 

[aniruddha82]

I tried cheaper option and used this foo_dsp_xover

I tried one channel with various crossover frequencies at 24db/oct, starting from 1200 to 2200.
Speakers were Peerless M13KH aand TL25SN powered by Dayton APA150 Stereo Amplifier, Right channel for woofer and Left for tweeter.

Tweeter becomes harsh at lower crossover frequency and Woofer becomes harsh(cone breakup) at higher crossover frequencies. I am not satisfied with any crossover frequency between 1200 to 2200. Looks like making a 3 way is the only way forward.
However I am impressed with the bass considering this is only 5.25 inch woofer.
Please suggest a good midrange for this. I am thinking for DM50AN (750hz-3500Hz) and will use SR10DT tweeter instead of TL25SN. Any other options?

Thanks,
Anirudha

Ignore my previous post, I left it playing for 4-5 hours yesterday. Today they are sounding awesome, may be it needed proper burn in. I am happy with the sound at 1550Hz crossover frequency.