Four 8ohm Speakers, One 4 ohm Output

[stewblack]

Hi, as the title suggests I have four speakers, each one rated 8 ohm, and wish to wire them in such a way that they will be safe to use with an amp which has but one output. 

The amp is rated at 4 ohm minimum. Here's my question. Is this diagram correct?

 

[Killed_by_Death]

 

That's a good diagram, because if any one driver fails, it will still continue to function.

However, it's 8 Ohms total:

8+8 in parallel = 4 (the pairs on left & right)

4+4 in series = 8 (left through to right is in series)

It's still safe for your amp, BUT you'll get roughly half the Power

 

 

[Killed_by_Death]

 

There are potentially 3 ways to wire it that come up with even numbers:

all series = 32 Ohms (each Ohms value summed)

all parallel = 2 Ohms (the value of each driver divided by two, twice)

series-parallel = same value as a single driver

 

[stewblack]

17 minutes ago, Killed_by_Death said:

series-parallel = same value as a single driver

This is the one I'm using. 

[MoonBassAlpha]

The upside is your amp should run cooler into an 8 ohm load.

As long as it is loud enough,  you're all good! 

[stewblack]

10 hours ago, MoonBassAlpha said:

long as it is loud enough,  you're all good! 

It's dandy! Thank you.