2426J from 1.8k to 8k load problem?

[Ken Pachkowsky]

Hi all, need some assistance re load versus impedance versus frequency.

I want to use one of my monarchy amps to drive a pair of 16ohm JBL 2426J's.

The Monarchy is Class A and 45 watts a channel at 8ohm's. With a 16ohm load my amp would produce about 22 watts a channel.

For you guru types. Is this ok to use at moderate levels or am I going to overdrive the output circuits on the amp?

It would appear the 2426J loads at around 11-12 ohms at this frequency range.
Thanks a bunch.

Ken

[Baron030]

Hi Ken

Running a relatively light load of 11-12 ohms is not going to have any detrimental effects on that amp. And you should expect the 2426J to be pulling about 30 to 35 watts a channel. But, if you are still concerned, you could add a 24 ohm resistor across the 2426J voice coil and that would lower the impedance to 8 ohms. I might add that a 24 ohm resistor is going to add some damping to the driver. Which could actually improve the sound of the 2426J, I happen to use a 20 ohm damping resistor on my 2446h drivers and it does make a difference.

Baron030

[Uncle Paul]

The 2426H/J is 110 dB SPL @ 1 Watt @ 1 meter.

At 22 Watts, you have more than 12 dB over that, remembering that you lose 3dB every time you double the distance from 1 meter. Also remembering that you want some headroom to prevent clipping.

It depends on how big the room is and what you are trying to accomplish.

[Ken Pachkowsky]

I can see this should not be an issue.

Thanks guys

[Robh3606]

Hello Ken

Are you using an active crossover?? You can have over 10db of padding in a passive network for a compression driver. That can tip the balance.

Rob

[Ken Pachkowsky]

Hello Ken

Are you using an active crossover?? You can have over 10db of padding in a passive network for a compression driver. That can tip the balance.

Rob

Rob

Nice to see you...

I am using a Deqx