Question About Ohms? please help

[mayeloski24]

So sometime soon when my church gets bigger, i might get a Hartke LH500, and it runs at @8=350 and @4=500 ( its full power) and i was thinking getting a Carvin BR410-4 cabinet , and it say on the website 4 ohms 800w, but the thing is the hartke LH500 has two 8 ohms out puts on the back, how will i be able to run the head @4 ohms, I'm still new with amps and ohms, i only own a Hartke 100w combo amp which is pretty simple to use. so yeah can someone tell me if this set up would work?

 

[joebar]

if the cab is rated at 4 ohms, then that means you will be running the amp at maximum safe wattage output.
you wouldn't be able to run two 4 ohm cabs with this head.

 

[bongomania]

Huh--I didn't believe him, but he's right--two outputs each labeled 8 ohms.

However in the manual they are labeled 4 ohms! Invalid Link Removed

You can connect any 4, 8, or 16 ohm load to those jacks--but you cannot connect TWO 4 ohm loads. Two 8 ohm ones are fine.

 

[mayeloski24]

ok so everything should be fine , but the thing is that the hartke lh500 head has two 8 ohms out puts, will i have to use a banana speaker cable? (i think is the cable that would work)

 

[nashvillebill]

No, the two jacks on the amp are evidently wired in parallel, allowing someone to plug two 8 ohm cabs in (one in each jack). Or one 4 ohm cab, just using one jack.

 

[mayeloski24]

No, the two jacks on the amp are evidently wired in parallel, allowing someone to plug two 8 ohm cabs in (one in each jack). Or one 4 ohm cab, just using one jack.

so i would only use one jack on the carvin cabinet?

 

[brenner182]

so i would only use one jack on the carvin cabinet?

Yes

 

[B-string]

Yes. One 4 ohm speaker cab ONLY to either jack. The "minimum load" is 4 ohms which is two 8 ohm cabs (equals 4 ohms) or only one 4 ohm cab.

 

[David Jayne]

Hartke just marks the outputs that way to remind you that if you connect two cabs they must both be 8 Ohms each, minimum. It's really just one, mono amp output split into two 'outlets.'

 

[basscooker]

^this.

 

[walterw]

i hate when amps are labeled like this, it's damn confusing (boogie does it too). it should be the two jacks with one label over or between them saying "4Ω minimum total".

 

[basscooker]

Or when there's an external cab connector on a combo amp and no indication what the minimum is.