A woofer question - Beyma 15G300

[Black Stuart]

Hi all,
These are s/hand and according to the vendor they are 110dB @ 8 Ohms. I forgot to ask what they go down to and did'nt notice last night that the auction ended at 12 last night. No one made an offer and the start price was only E45.

Now I was looking to buy 4 Ohm woofers to go with the 4 Ohms Heils, but if the quoted SPL is correct it is way above the Heils 96.5dB. As I don't want to lose any of the Heils sensitivity I need amps with o/put txs of 4 Ohms. As I also intend to use active x/overs - the question is, do I just need to use a series resistor to bring the woofer down to match the Heils.

Perhaps this is one for Petercom.

I am in touch with the vendor, so I can still buy if they are suitable for my project.

Black Stuart

Stewart, Attenuator here http://www.mhsoft.nl/spk_calc.asp
Will.

[Black Stuart]

Will that is brilliant,
the deal is still on but the vendor in Pais Vasco is really ****ed off with E-bay/PayPal.

I questioned whether the SPL was correct and I was right to do so - it's 101dB and that's fine (I think) as the woofers are 8 Ohm and the Heils 4 Ohms.

Now here's an interesting option to bi-amp, of course with an active x/over, using an 8 Ohm amp for the woofer and a 4 Ohm amp for the mid/high Heils. Would I still need to attenuate the woofer?

Black Stuart

I can't answer that but, I would go for something like the Behrringer s/p active crossover and go from there, http://cgi.ebay.co.uk/BEHRINGER-CROS...QQcmdZViewItem
Will.

Ho, euro sale http://cgi.ebay.co.uk/Behringer-SUPE...QQcmdZViewItem

[Black Stuart]

Will,
it looks very tempting, presumably it's a stand alone unit ie plug and play?
I shall have to check further - many thanks for the links.

Black Stuart