Simplexx 10 as a studio monitor?

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la80vette
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Simplexx 10 as a studio monitor?

#1 Post by la80vette » Thu Jan 03, 2019 11:34 am

I'm considering this build as a nearfield or midfield studio monitor.
It reminds me of the Tannoy HPD or newer Eaton series. I like the coaxial.
Is there way to bring down the bump in the 3k to 5k region?

Stephen
2 SLA PRO (built by Leland)
2 T39 24" 3012LF (built by Leland)
2 Jack 10's (built by Leland)
4 Wedgehorn 8's (built by Leland)
1 XF210 w/Legend 1028 (built by Leland)

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Bill Fitzmaurice
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Re: Simplexx 10 as a studio monitor?

#2 Post by Bill Fitzmaurice » Thu Jan 03, 2019 12:18 pm

Yes, it's called 'EQ'.

la80vette
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Re: Simplexx 10 as a studio monitor?

#3 Post by la80vette » Thu Jan 03, 2019 12:37 pm

Thank you Bill.
Happy New Year!!
2 SLA PRO (built by Leland)
2 T39 24" 3012LF (built by Leland)
2 Jack 10's (built by Leland)
4 Wedgehorn 8's (built by Leland)
1 XF210 w/Legend 1028 (built by Leland)

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Bill Fitzmaurice
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Re: Simplexx 10 as a studio monitor?

#4 Post by Bill Fitzmaurice » Thu Jan 03, 2019 1:05 pm

The Beta 10 CX is used a lot in studio monitors and HT speakers. Where I'd go different than the stock S10 is with the HF driver. The ASD 1001 is fine for pro-sound, which doesn't do much above 10kHz, and the emphasis of the ASD in the 3-5kHz region is good for intelligibility in PA use, but that's not required for studio or home use. For a monitor I'd go with something that goes to at least 15kHz, like a Selenium D220Ti. It also runs flatter than the ASD1001.

la80vette
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Re: Simplexx 10 as a studio monitor?

#5 Post by la80vette » Thu Jan 03, 2019 2:16 pm

Would that driver screw into the 10cx the same and would the cover need any modifications?
2 SLA PRO (built by Leland)
2 T39 24" 3012LF (built by Leland)
2 Jack 10's (built by Leland)
4 Wedgehorn 8's (built by Leland)
1 XF210 w/Legend 1028 (built by Leland)

la80vette
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Location: Houma, Louisiana
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Re: Simplexx 10 as a studio monitor?

#6 Post by la80vette » Thu Jan 03, 2019 2:17 pm

Crossover.
2 SLA PRO (built by Leland)
2 T39 24" 3012LF (built by Leland)
2 Jack 10's (built by Leland)
4 Wedgehorn 8's (built by Leland)
1 XF210 w/Legend 1028 (built by Leland)

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Bill Fitzmaurice
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Re: Simplexx 10 as a studio monitor?

#7 Post by Bill Fitzmaurice » Thu Jan 03, 2019 2:34 pm

It's a standard 1 3/8" thread, and the same crossover is fine.

tvent
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Re: Simplexx 10 as a studio monitor?

#8 Post by tvent » Wed Jan 09, 2019 9:15 am

I'd be very interested to hear about how this turns out.
I've been wanting some mid-sized coaxial monitors for my studio for a while. I always wanted some of those older Urei's with that Blue high frequency horn sticking out from the woofer... Should have bought some back when studios were throwing them out.

This may be a stretch, but are there any options for the high-frequency driver that aren't made of titanium or other metals?
I've noticed over the years that during long-term listening sessions in a studio environment that the titanium and aluminum tweeters fatigue my ears much quicker than softer/silk options... (even with the very expensive boutique studio monitors such as Genelec.)

Are there other BFM designs that would be well suited for mid-sized studio monitoring? I have the traditional nearfield 6.5" & 8" 2-way arena pretty well covered with NS-10's and some older Paradigms, but am certainly curious about what works well from Bill - especially for a mid-field.
Last edited by tvent on Wed Jan 09, 2019 10:32 am, edited 1 time in total.
Built:
4 x WH10 melded
4 x WH8 melded
2 x Jack15 melded
2 x Simplex 12 w/BGH-25 for Bass
1 x Simplex Tiltback (powered PPA800DSP) for Keys
2 x SLA Pro
Bought:
6 x T39 20" 3012LF loaded

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Bill Fitzmaurice
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Re: Simplexx 10 as a studio monitor?

#9 Post by Bill Fitzmaurice » Wed Jan 09, 2019 9:43 am

The material the diaphragm is made of has no bearing on the sound, it's how it's made that counts. Soft domes don't work well in horns due to the high throat pressure. What's fatiguing is high level distortion. Since horns have much lower distortion than direct radiators they're inherently less fatiguing.

tvent
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Location: Helena, AR

Re: Simplexx 10 as a studio monitor?

#10 Post by tvent » Wed Jan 09, 2019 10:32 am

Makes sense Bill. Thanks.
I may build up a set of these (I might lean toward the 12" since I've already had great success with the other 12" Simplexx offerings for Key and Bass rigs) once my other projects have been knocked out.

OP, please let us know how it works out if you decide to move forward with it.
Curious - what amp will you drive it with (assuming the amp is in the same room)?
Built:
4 x WH10 melded
4 x WH8 melded
2 x Jack15 melded
2 x Simplex 12 w/BGH-25 for Bass
1 x Simplex Tiltback (powered PPA800DSP) for Keys
2 x SLA Pro
Bought:
6 x T39 20" 3012LF loaded

la80vette
Posts: 103
Joined: Tue Aug 31, 2010 12:51 pm
Location: Houma, Louisiana
Contact:

Re: Simplexx 10 as a studio monitor?

#11 Post by la80vette » Fri Jan 11, 2019 3:06 pm

tvent,
I'm going to try and start the build next week. This will be my first attempt. Leland Crooks has done all of my speakers.
I'll certainly post updates and a review.
I was hoping to get a used Bryston amp, maybe a B3 or B4. It's not pressing right now and I have power amps that i can run with.

Stephen
2 SLA PRO (built by Leland)
2 T39 24" 3012LF (built by Leland)
2 Jack 10's (built by Leland)
4 Wedgehorn 8's (built by Leland)
1 XF210 w/Legend 1028 (built by Leland)

tvent
Posts: 71
Joined: Sun Sep 26, 2010 4:29 pm
Location: Helena, AR

Re: Simplexx 10 as a studio monitor?

#12 Post by tvent » Fri Jan 11, 2019 9:35 pm

Thanks for the update Stephen. I'm looking forward to see how things progress.

Leland is a great builder. He built a pair of my T39s directly and I think I also bought a pair 2nd hand that he may have built. Class act.
You'll do fine building your own. As is always said here: Take your time/don't rush and read the plans thoroughly.
I really like the Simplexx line for the purposes I've built them for so far.

Are you going sealed or ported for the monitors?

Bryston? Good choice. I always convince myself they are out of my budget, but I may bite that bullet some day.

I was looking at building a pair of these DIY Class A amps for my NS10's:
https://diyaudiostore.com/products/amp- ... 2933085218
I might be money ahead to pony up for a 2nd hand Bryston though, now that you mention it.
Built:
4 x WH10 melded
4 x WH8 melded
2 x Jack15 melded
2 x Simplex 12 w/BGH-25 for Bass
1 x Simplex Tiltback (powered PPA800DSP) for Keys
2 x SLA Pro
Bought:
6 x T39 20" 3012LF loaded

la80vette
Posts: 103
Joined: Tue Aug 31, 2010 12:51 pm
Location: Houma, Louisiana
Contact:

Re: Simplexx 10 as a studio monitor?

#13 Post by la80vette » Sat Jan 12, 2019 10:50 am

I won’t be doing any modifications other than the Hf driver. If the cabinet comes out square and clean, I may attempt to veneer it.
2 SLA PRO (built by Leland)
2 T39 24" 3012LF (built by Leland)
2 Jack 10's (built by Leland)
4 Wedgehorn 8's (built by Leland)
1 XF210 w/Legend 1028 (built by Leland)

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