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dalzeah
Just wondering if I'm doing this right...... Does it matter which way round you connect your Subs and Tops? At the moment I go from the left and right channel of my amp into each of my 15'' Subs and then run up to my top speakers. Does it make any difference if I go to the tops first and then run down to the subs?

Cheers

Mik
Welsh Audio Man 21
QUOTE(dalzeah @ Aug 26 2009, 01:07 PM)

Just wondering if I'm doing this right...... Does it matter which way round you connect your Subs and Tops? At the moment I go from the left and right channel of my amp into each of my 15'' Subs and then run up to my top speakers. Does it make any difference if I go to the tops first and then run down to the subs?

Cheers

Mik


It depends what speakers/ subs you have. I would recommend running as you are though, especially if the subs have passive crossovers fitted!
spinner
QUOTE(dalzeah @ Aug 26 2009, 01:07 PM)

Does it make any difference if I go to the tops first and then run down to the subs?

Cheers

Mik



Assuming your tops are full range cabinets then yes.

If your subs have passive crossovers fitted they will reproduce bass only and send the mid/top signals to your mid/top speakers.

If you do it the other way round your top cabs will get a full range signal. Your subs will still reproduce only the bass frequencies.
superstardeejay
QUOTE
If your subs have passive crossovers fitted they will reproduce bass only and send the mid/top signals to your mid/top speakers.


Not necessarily! Almost all subwoofers have passive crossovers, most are low-pass and will simply output a full range signal to the tops via the loop-through socket.

Only bass bins with 2-way crossovers in will 'split' the signal. Some will need special leads (eg Peavey Hisys system with 4-pole Neutrik) and some have dedicated mid-high outs and these will be marked.

I agree, tell us everything about your speakers before asking for advice and then we can give specific information. Dont be vague!





spinner
QUOTE(superstardeejay @ Aug 26 2009, 10:33 PM)



Only bass bins with 2-way crossovers in will 'split' the signal. Some will need special leads (eg Peavey Hisys system with 4-pole Neutrik) and some have dedicated mid-high outs and these will be marked.




Quite right and that's what I was thinking of (once had a couple of pairs of Hisys bins).
Bouncy Dancefloor
lets not forget the ohmage issues here too, if the subs and tops are 4 ohms, if you go into tops first youll drop down to 2 ohms which can be very bad for your amplifier!! Whereas the Sub Crossover will allow you to stay at 4ohms

In reality we shouldnt speculate any further until the OP has posted the exact make and model of his speakers
dalzeah
Sorry, I am being a bit vague. My subs are Class D 15''. 350w RMS 8 ohms.

My tops are Yamaha S1151V 250w - Cant seem to find any RMS info.

These are being driven by a C MARK MR2650 1200w power amp.

Thanks for the help so far - much appreciated.

Welsh Audio Man 21
The Yamaha S115V's are usually 8 ohm.

The yamahas only have parallelled inputs, so again, I would continue to run via the Bins first. The Bins have a crossover frequency of about 250hz (i think)
dalzeah
QUOTE(welshyDJ18 @ Aug 27 2009, 12:40 PM)

The Yamaha S115V's are usually 8 ohm.

The yamahas only have parallelled inputs, so again, I would continue to run via the Bins first. The Bins have a crossover frequency of about 250hz (i think)



Got a few tech details now - The Yamahas are 8 ohm and seem to have parallel sockets and a crossover frecuency of 1.7kh ( it says on the spec) and yes, Welshy the crossover frecuency on the class d bins is 250mz. The boys in my band will take great interest in this thread when I show them, as we are never sure which way to go!
D.X
QUOTE(dalzeah @ Aug 27 2009, 01:14 PM)

The boys in my band will take great interest in this thread when I show them, as we are never sure which way to go!


Just friendly advice. Next time you buy some equipment, sort all this out before you hand over the cash. If those speakers had of been 4ohm the amp would've seen a 2ohm load and unless it's stable at that ohmage you could've been looking at a blown amp or worse.

Welsh Audio Man 21
QUOTE(D.X @ Aug 27 2009, 01:45 PM)

ohmage


Is that the technical terminology?! 071.gif

Impedance my good friend... Impedance! smile.gif
D.X
QUOTE(welshyDJ18 @ Aug 27 2009, 01:58 PM)

Is that the technical terminology?! 071.gif

Impedance my good friend... Impedance! smile.gif



Ohmage
Welsh Audio Man 21
QUOTE(D.X @ Aug 27 2009, 10:39 PM)


I stand corrected. There be 2 official words then!
D.X
To be honest, Impedance is the better term to use. It's definitely the more often used term.
Welsh Audio Man 21
QUOTE(D.X @ Aug 28 2009, 02:48 PM)

To be honest, Impedance is the better term to use. It's definitely the more often used term.


I had not heard of Ohmage until now!
dalzeah
Thanks for the replys - I'll carry on as I am then. Subs first. Seems to work fine anyway!


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