Adding protection to mini monitors for sub use?

[nelsondog]

I built a pair of mini monitors for a friend and now he wants to incorporate a subwoofer into the system. How do I cut the low frequency to the monitors to about 80 Hz?
Thanks for looking!

[Kal Rubinson]

nelsondog wrote:

I built a pair of mini monitors for a friend and now he wants to incorporate a subwoofer into the system. How do I cut the low frequency to the monitors to about 80 Hz?
Thanks for looking!

Depends on the sub and the other equipment. Basically:
1. You can get a sub with speaker level crossover.
2. You can get a sub with line level crossover.
3. You can buy a crossover, line or speaker level, to add.
4. You can put a capacitor in the line before the amp or speaker cable.
More info needed.

Kal

[nelsondog]

I'm using this amp: http://www.apexjr.com/MnKAmp.htm
And and old Sony stereo integrated amp with out pre-outs

[Mike P.]

The left and right speaker outputs from the Sony connect to the L+R speaker inputs on the sub amp, the L+R speaker outputs on the sub amp connect to the mini monitors. Set the Low Pass on the sub amp to 80 hz.

[nelsondog]

Simple as that?

[Mike P.]

Yes. Let us know how it turns out.

[nelsondog]

Thank you very much!
Brian

[Kal Rubinson]

Mike P. wrote:

Yes. Let us know how it turns out.

Nope. No where do I see anything about a HP filter for the pass through. Is there something in the specs I missed?

Kal

[nelsondog]

Keep me posted, for sure!

[Mike P.]

Kal Rubinson wrote:

Nope. No where do I see anything about a HP filter for the pass through. Is there something in the specs I missed?

Kal

It's either adjustable from the law pass on the sub or built in and fixed at 80 hz like most other plate amps that have speaker level inputs. Either way the lows go to the sub and 80 hz and above go to the monitors.