Protium

If you're having to do that I reckon there could be something wrong with the head. I have no volume trouble at all with my 300W ABM even through a single 15".

[quote name='Moo' post='314045' date='Oct 24 2008, 06:11 PM']Sorry to be patronising. I was trying to add to the explanation for the benefit of the original poster. If Both cabs are 4ohms they both recive the same power. With a 300w amp and 2 4ohm cabs, a 1x15 will get 150w, and a 4x10 will get 150w. This means that the 15" driver gets 150w and each of the 4 10" inch drivers gets 37.5w because they are series / parralel wired in pairs to make 8 ohms for the cab. Any road up. I have the results of my shed measuring this afternoon: I turned up the head to the point where the clip light was just comming on and then measured the voltage with 2x 8ohm cabs conected in parallel. 1000Hz Sine = 29.4v into 4ohm cabs = 7.35A and 216 Watts 100Hz sine = 29.4v into 4ohm cabs = 7.35A and 216 Watts 50Hz sine = 28.4v into 4ohm cabs = 7.1A and 201 Watts Pink Noise = 17.8v into 4ohm cabs = 4.45A and 79 Watts So when the clip light comes on this head is delivering 216 watts. It has a 33% safetey margin built in. To be fair to Warwick, most the problem I have hearing myself are probably caused by my cabs, which do not have much prescence or high end. Time to try out some new cabs. Moo.[/quote] Don't think of it as 2 cabinets - If the cabs are wired together to the same output they become a single circuit. [attachment=15151:circuit.JPG] In your example (assuming 300W input and all 8ohm speakers), each 10" speaker would get 50W and the 15" 100W In other words the 4x10" receives 200W, the 1x15" receives 100W, a ratio of 66:33 not 50:50

Handbags!

[quote name='Moo' post='313494' date='Oct 24 2008, 04:05 AM']The output voltage of the amp stays the same, but the current, and sound level increase with a lower impedance load. Also more drivers means higher efficiency due to larger surface area of tranducers to move the air. Two parallel wired (Normal Wiring) cabs of equal impedance and sensitivity will be twice the power output and twice as loud from the same amp.[/quote] I know... I was saying that the output power isn't necessarily split 50:50 between two cabs - you have to treat the whole setup as one circuit and that (depending on wiring) the power will be split between each speaker not split between each cab.

[quote name='ste_m3' post='313206' date='Oct 23 2008, 06:52 PM']Are you sure about that? how would the amp "know" to send certain power etc? Im not being a cock, Just broadening knowladge! [/quote] You have to consider the entire setup as one circuit not as two separate cabs. Depending on the wiring (series/parallel) either the voltage or current will be split between speakers, but the power level remains the same.

[quote name='Musky' post='313429' date='Oct 23 2008, 11:17 PM']I think you've got the answer John. I've seen this view before for PA amps, and some advocate it for bass amps as well. I seem to remember that driving an amp into clipping can damage the speakers.[/quote] Pushing the speakers past their Xlim will damage them. Clipping from an amp won't.

[quote name='dannybuoy' post='313157' date='Oct 23 2008, 05:55 PM']I really hope they get this right and produce a cheap alternative to the LMII![/quote] I'd laugh so much if they laid waste to the MarkBass given that everyone here is saying they'll blow up depsite the fact they've never seen one nevermind played through one

David Sims - The Jesus Lizard Trevor Dunn - Fantomas/Mr. Bungle John Tumor - Amen/Snot

[quote name='ste_m3' post='312029' date='Oct 22 2008, 01:20 PM']By science, Getting another 2x10 is the thing to do (please Alex or Bill correct me if i get this bit wrong!) -Stacking them end on end will bring the speakers much closer to ear level, Increasing percieved volume, as well as the dispersion around the stage being much more even. And on a second note, If you bought a 410 or 115, Each individual speaker would be working under a different stress, for example (again, correct me if i get this wrong!) 300watts into two cabs, one 410 and one 210, They both recieve 150 watts of power, each cone in the 410 recieves 37.5 watts, where as each cone in the 210 will recieve 75 watts. Basically you wont get the most out of the 410 before you blow the speakers in the 210. Especially as your only using 300 watts. Hope that made sense![/quote] The power gets split between the 6 speakers not the 2 cabs. And getting more 10's is correct - 15's are rubbish

"We're sorry, but tune_o_matic has declined your Best Offer for US $1.00"

There are hundreds of mods you can do to change it to how you like it, download the tone stack calculator for a start. You can mod the capacitor values to have the tone section virtually flat, or with extreme scooped mids (the original is a slight mid scoop centred around 1kHz). True bypass does what it says on the tin, when the pedal is off it is off - the signal is routed only through the footswitch. Without true bypass you can get some bleeding of the signal which will affect tone slightly, I wouldn't worry about it unless you're running a chain of about 60 pedals Comparing tone section (centered) of USA and Russian: USA: -5dB@ around 850Hz Sovtek: -7dB@ around 1kHz Might explain why people prefer the more scooped sound of the Russian further into the mids for bass.

[quote name='SJA' post='310273' date='Oct 20 2008, 10:48 AM']spooky how the P at the front is levitating.[/quote] Obviously you didnt pay for that option from warmoth

[quote name='BassManKev' post='309915' date='Oct 19 2008, 05:02 PM']well another comment, a japanese boss oc-2, the one with octaver wrote on it, just sold for £38.... less than a odb-3 and 2 ls-2's that have gone last 24 hours w t f[/quote] Yeah I bid on that but was out when it finished

Basschat USA roadtrip? Buy in bulk Seriously though, I dont like the look of the SD card stuck out like that right by the stomp switches...

Relying on the woody mids to be able to cut through in a genre full of loud arsehole guitarists? Pedulla>Warwick in metal

Hehe we once had a 7 piece drum kit, 410 cab, bass head, 2 basses, a keyboard, me and the drummer in a Fiesta. It was wrong.

[quote name='bobbass4k' post='309842' date='Oct 19 2008, 02:26 PM']Looks to me a Catalinbread Serrano Picoso, a very highly rated boost pedal[/quote] Cheers boss.

I use the back seats. The 410 takes up the boot

PA speakers should be fine with everything. What about a notice telling them not to do it

[quote name='Muse_Cubed' post='308994' date='Oct 17 2008, 11:40 PM'] Done. Now that I've finished making it, who wants to buy it off me? [/quote] What is the small white box with the green knob (top right)?

[quote]Welcome to another of my auctions for a good friend of mine, this is actually written in his words as i know nothing about musical instruments or amplifiers.[/quote] A quick look on his UG profile suggests otherwise.

[quote name='steve-norris' post='308905' date='Oct 17 2008, 08:38 PM']To avoid all that tedious soldering malarkey get the proper shielding foil, it has conductive adhesive so you just stick one piece on top of the other. It really annoys me that some decent basses come without proper shielding, it can't really cost that much can it?[/quote] Exactly, you spend £xxx on a bass and they can't even put £1 of copper foil in it...

You can do yeah coz they're in parallel, or see what sockets are on the cabs.

The EVO II has one jack and one speakon out

Anyone fancy making a 4 string, 18 pickup monster?