Oris 150 with tapped bass horns (Oris Horns)

by Boyan @, Thursday, June 22, 2017, 13:55 (33 days ago)

Hi all,

I am thinking about pairing Oris 150 with 15 inch tapped bass horns. I am looking at Martinssons THAM15, here are the hornresp simulation :
[image]
[image]
What do you think, would it be a good match? I could make an Oris simulation, but I do not know the dimenssions.
Of course first I have to obtain the Orises :)

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Oris 150 with tapped bass horns (edited)

by Bert @, Thursday, June 22, 2017, 15:20 (33 days ago) @ Boyan

Hi all,

I am thinking about pairing Oris 150 with 15 inch tapped bass horns. I am looking at Martinssons THAM15, here are the hornresp simulation :

What do you think, would it be a good match?

All high sensitivity bass horns will be a good match as long as they are not too much adding non existing noise their own to the mix...

Problem with this bass system is the huge dip after 150Hz making all above that frequency useless which should be corrected. The dip can't be corrected digitally but perhaps acoustically by adding a resonator within tuned to that frequency?

As subwoofer (up to 150Hz) it looks like a killer but it does not go high enough correctly to be a perfect mate for the Oris 150 unless you EQ that one too down to 150Hz.

But on the other hand, most listening rooms show the same and then it might not be obvious in the end?

Never heard or tested the system myself though, just thinking out loud with the information I have.

Edit: I have found several other frequency plots showing the dip higher in frequency which would make it an almost perfect match but then make sure that all after the dip is digitally removed/corrected. The rear chamber of the horn needs to be tuned (electronically or acoustically) to the used driver to show the same (mirrored) frequency response.

Bert

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BD-Design - Only the Best!

Oris 150 with tapped bass horns (edited)

by Boyan @, Friday, June 23, 2017, 08:46 (33 days ago) @ Bert

Thank you Bert,

I also noticed this dip and try to simulate with different driver, this is what I got:
[image]
[image]
This time I run it in half space for the results to be more realistic.
Will the Oris work down to 150hz? I could make a passive crossover at 150hz.

Oris 150 with tapped bass horns (edited)

by Gasper @, Friday, June 23, 2017, 10:15 (33 days ago) @ Boyan

Hi Boyan,

This is response of Oris150/DX4 with protective high pass filter measured at my place:
[image]

I have heard tapped horn(s) with 18's but the same problem as you mentioned: hard to get proper response above 100-120 Hz.

You can buy my REF2010/B&C combo:cool:

Regards,
Gasper

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Oris 150 with tapped bass horns (edited)

by Bert @, Friday, June 23, 2017, 17:51 (32 days ago) @ Boyan

The dip is the same regardless the used driver. It is a cancelation of the front and rear waves...

Enclose the driver at the rear side and the dip is gone...

Bert

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BD-Design - Only the Best!

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