Oris 150 Driver Parameters (BD-Design)

by Rudy81 @, Dallas, TX, Thursday, September 26, 2019, 05:01 (195 days ago)

Bert,
Been looking at various full range drivers for my Oris 150 horns and I was wondering what you recommend as the optimal T/S parameters for a driver in your horns? I can't seem to find any data on the subject.

Rudy

Oris 150 Driver Parameters

by Bert @, Thursday, September 26, 2019, 11:46 (195 days ago) @ Rudy81

Hey Rudy,

Been looking at various full range drivers for my Oris 150 horns and I was wondering what you recommend as the optimal T/S parameters for a driver in your horns?

Optimal? Qts around 0.3 for normal use which will be the most dynamic and most clean/controlled plus probably better extention into the high frequencies.

Q's higher will start to give a boost in the lower midrange which can be cured within the passive srossover extending the lower frequencies range as a bonus.

Qts' above 0.5 - 0,6 is not advised, these are more suitable for normal use without a horn.

All depends also a bit on how you use the rear chamber which can be left completely open or closed.

Just look for the best driver to your taste and budget and you can make them "fit" into the Oris 150's.

Bert

--
BD-Design - Only the Best!

Oris 150 Driver Parameters

by Rudy81 @, Dallas, TX, Thursday, September 26, 2019, 15:17 (194 days ago) @ Bert

Thank you sir. I just needed some guidance on what to look for when shopping for new drivers. I recognize that some drivers are better suited to one type of horn vs. another. Not a ton of information on drivers suited to front loaded horns.

Oris 150 Driver Parameters

by Rudy81 @, Dallas, TX, Tuesday, October 01, 2019, 02:25 (190 days ago) @ Bert

Bert,
Any guess on how the Mark Audio Alpair 12P would sound in an Oris 150? Plan would be to cross above 300hz. T/S parameters seems intriguing with this driver, although it is not a true 8 inch driver.

Qts: 0.285
Qes: 0.333
Qms: 1.981
BL: 7.54
Fo: 42.1
Sd: 147.41

The Alpair seems to get very good reviews compared to other low priced drivers.

Oris 150 Driver Parameters

by Bert @, Tuesday, October 01, 2019, 07:42 (190 days ago) @ Rudy81

Hi Rudy,

I do not feel confident that this driver will be the best match for the Oris 150.

If you're on a budget then better go for Fostex FE206En or the Tang Band 1772.

Cheers,

Bert

--
BD-Design - Only the Best!

Oris 150 Driver Parameters

by Rudy81 @, Dallas, TX, Wednesday, October 02, 2019, 02:21 (189 days ago) @ Bert

Thank you for the help Bert. I ordered the Fostex Fe206en today. Very inexpensive speaker and worth a try. I note that it's T/S parameters are the closest to the AER and Lowther than almost any other speaker I can find. I have been using the TB1808 for years and know they are not ideal for the Oris and have been looking for something just a bit more transparent. May eventually go to the TB1772, but for now the Fostex will be nice to play with.

Oris 150 Driver Parameters

by Gasper @, Sunday, September 29, 2019, 22:26 (191 days ago) @ Rudy81

Lowther DX3 is good, better is DX4...

Best results I get with only soft cower at the back, no wood plate...

G.

Oris 150 Driver Parameters

by Don Reid, Rural Northwest Georgia, USA, Monday, October 07, 2019, 19:07 (183 days ago) @ Gasper

I have tried ported solid back plate, wool back cover and open backs on my Oris 150s. I much prefer the open backs. The dipolar sound it adds improves the image depth.

Oris 150 Driver Parameters

by Gasper @, Tuesday, October 08, 2019, 22:07 (182 days ago) @ Don Reid

Can't try any more...Orphean rules:clapping:

Do you think that yours tubaHT can play up to 250Hz? I know you are use them up to 160Hz and you timedelay Orises...

Regards, Gasper

Oris 150 Driver Parameters

by Wilson1, USA, Wednesday, October 09, 2019, 02:19 (182 days ago) @ Gasper

Agreed... The Oris-150 is fantastic but the Orphean is out of this world! The dynamics and speed are incredible.

Oris 150 Driver Parameters

by Don Reid, Rural Northwest Georgia, USA, Wednesday, October 09, 2019, 18:38 (181 days ago) @ Gasper

Hi Gaspar,
I am currently crossing the HT Tuba over to the Oris 150s at 200 Hz using a DEQX HDP3 DSP with roll off slopes of 100dB/octave. If I were using more conventional crossovers with roll off slopes of 24dB/octave or so I am not sure I would use the HT Tubas up to 200 Hz, much less 250 Hz.

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