Another amp + cabs hookup question

[CoryB]

I have a 300-watt amp head (Warwick Gnome iPro Japanese model) that is currently feeding a Markbass 410 cab (800 watt). Sitting around doing nothing at the moment is a PJB CAB-27 (200 watt) which has a pair of 7” drivers plus a 3” tweeter.

If I wanted to use both cabs, would it be reasonable? Both cabs a 8-ohm with in/out speakOn connectors. The head is 1/4” plug only but I already have a conversion cable currently in use to the 410. What happens if I daisychain the two cabs together? If it’s okay, in which order should they be hooked up?

Physically I think it would be safe since 150 watts would go to each cab. Or would they? I remember a post by agedhorse explaining what happens in a similar situation, but I can’t find it right now.

Alternately, I also have a Subway D-350 with dual speakOn connectors that feeds a GK CX210. Would that be a better fit?

Thanks.

 

[Wasnex]

What happens if I daisychain the two cabs together? If it’s okay, in which order should they be hooked up?

If both cabs are the same impedance, they share power pretty much equally. As long as the connections are parallel, the order of the daisy chain does not matter.

 

[gtirard]

If both cabs are the same impedance, they share power pretty much equally. As long as the connections are parallel, the order of the daisy chain does not matter.

Came to say the same.
I doubt the second cab adds much to the sound, because I suppose the 2x7" has a much lower sensitivity than the 4x10", so it will produce less sound.
But there's no risk trying.

 

[agedhorse]

Should work ok, but may not sound any better or louder.

 

[ardgedee]

If the PJB cab has a tweeter and the MarkBass cab doesn't, you might get more audible high frequencies but I suspect that's about it.

 

[Bassic_desires]

@agedhorse and @Wasnex Is there a need to mention that both cabs need to be in phase?

 

[Wasnex]

@agedhorse and @Wasnex Is there a need to mention that both cabs need to be in phase?

It does not hurt to check, but AFAIK modern cabs are set so + produces outward cone motion.

 

[agedhorse]

@agedhorse and @Wasnex Is there a need to mention that both cabs need to be in phase?

That’s presumed, but always good to verify. If combined, the two cabinets produce less low end, there’s a phase issue somewhere.

 

[rickdog]

I can see a possible advantage to that combination: the 4x10 fills the room, but blows the sound past your knees (if you're built like me, you don't have ears there ), and the 2x7 elevated to ear level, or on the floor at your feet aimed up so you can hear yourself clearly.

 

[agedhorse]

I can see a possible advantage to that combination: the 4x10 fills the room, but blows the sound past your knees (if you're built like me, you don't have ears there ), and the 2x7 elevated to ear level, or on the floor at your feet aimed up so you can hear yourself clearly.

There’s always the option of raising the cabinet, or tilting it back a little. Both are proven solutions.