The short Q? - I want to add a mid “M” to an existing MT speaker and still run it on AVR power, both mids are 8ohm BUT…. Re is 5.17ohms. Is there a way I can use these and also have a weird ohm rating?
I assume I cannot parallel the mids (too low) so if I series them will this work?
I plan on building a passive XO network (with help) and running them off my AVR for LCR.
The drivers in question are the
I assume I cannot parallel the mids (too low) so if I series them will this work?
I plan on building a passive XO network (with help) and running them off my AVR for LCR.
The drivers in question are the
Eminence Deltalite II 2512
In this case I am only using these drivers, if it doesn’t work then it doesn’t work, I’ll move on. Please set me right, can this be done?
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Re is the VC's DC resistance, so a nominally 8 ohm driver as listed, ergo parallel two = ~4 ohm, series = ~16 ohm.
Which AVR are you using and can it take 4 ohm speakers? Many AVRs have caveats, either minimum 6 ohms and cannot supply the current required at volume even if only one of the pair is 4 ohm when the rest of the multi-channel is 8 ohm.
Oh really?! Interesting! Just checked my SR7010 and while it only lists ratings for 6, 8 ohms, lists the output connectors as 4 - 16 ohms, so try it and see if it shuts down under 'X' load?
2 woofers always fun if your looking for more bass/sensitivity.
center to center for 12" would put crossover at lower frequency.
I would just go for MMT
Without to much explanation you'll see in sim
not much benefit to MTM.
But extra woofer always fun
Be tall and sit well closer to ear level keeping
high frequency towards the top . Great tower /floor stander
center to center for 12" would put crossover at lower frequency.
I would just go for MMT
Without to much explanation you'll see in sim
not much benefit to MTM.
But extra woofer always fun
Be tall and sit well closer to ear level keeping
high frequency towards the top . Great tower /floor stander
So you want to add another 12" driver as an MTM. What tweeter are you using.....
And what do you think you're going to gain?
And what do you think you're going to gain?
Not sure…..one Deltalite 12 given it’s power handling can chase a dozen people out of an average size room so I guess bigger is better?
It’s a celestion 1” CD on a 15” seos waveguide.
A larger soundstage and nothing else. Not looking for more spl or anything else. All three are going behind my screen. You see, I’ve had these in a three way with an 18” xo at 350hz and loved them but I don’t want to use up amp space anymore.
But my avr won’t take a 4ohm load so this experiment is dead before it begins, thank you.
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Unless my math is wrong.... peak SPL is a function of swept volume and limited by excursion at lower frequencies or heat dissipation capability of the voice coil at higher frequencies.
As such - doubling up any driver - doubles swept volume = a 6dB peak SPL increase
Here's the peak for a single (blue) and 2 (red) drivers into 4pi space (no enclosure loading / rolloff factored here):
The drivers become excursion limited at peak power below 123Hz and thermally limited above for max SPL
I am assuming the stated sensitivity is at 2.83v drive level (i.e. 1 watt for an 8 ohm nominal driver)
As such - doubling up any driver - doubles swept volume = a 6dB peak SPL increase
Here's the peak for a single (blue) and 2 (red) drivers into 4pi space (no enclosure loading / rolloff factored here):
The drivers become excursion limited at peak power below 123Hz and thermally limited above for max SPL
I am assuming the stated sensitivity is at 2.83v drive level (i.e. 1 watt for an 8 ohm nominal driver)