The Official Procella Audio Speakers Owners thread - Page 21 - AVS Forum | Home Theater Discussions And Reviews
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post #601 of 642 Old 01-14-2020, 07:23 PM
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Quote:
Originally Posted by ElJefe22 View Post
For a room size 22'9"x15'9"x9', what setup would be best for a 9.4.6 configuration. Just needing suggestions for bed and atmos channels
Your room is 22'9"x15'9"x9', or 6.9 x 4.8 x 2.75m, nice size room!

BEST (Hollywood studio quality, THX PM3 level) would be:
LCR: 3 x P815
Surrounds: 6 x P8 or P8iW
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P8 or P8iW

VERY VERY GOOD:
LCR: 3 x P815
Surrounds: 6 x P6 or P6V
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P6 or P5 or P5iW

VERY GOOD:
LCR: 3 x P610
Surrounds: 6 x P6 or P6V
Subs: 1 x P15FP, 3 x P15A
Ceiling: 6 x P5 or P5iW

Does that answer your question?
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post #602 of 642 Old 01-15-2020, 11:55 AM
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Originally Posted by Gerben Van Duyl View Post
Your room is 22'9"x15'9"x9', or 6.9 x 4.8 x 2.75m, nice size room!

BEST (Hollywood studio quality, THX PM3 level) would be:
LCR: 3 x P815
Surrounds: 6 x P8 or P8iW
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P8 or P8iW

VERY VERY GOOD:
LCR: 3 x P815
Surrounds: 6 x P6 or P6V
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P6 or P5 or P5iW

VERY GOOD:
LCR: 3 x P610
Surrounds: 6 x P6 or P6V
Subs: 1 x P15FP, 3 x P15A
Ceiling: 6 x P5 or P5iW

Does that answer your question?

Thank you so much Gerben!
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post #603 of 642 Old 01-20-2020, 12:40 PM
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Originally Posted by mmiles View Post
Procella - I have listened to them at several trade shows and walk away impressed but I think they can be shrill on the high end. Now room treatments (don't forget this aspect), calibration and eq tweaks can help. Again this is just me probably.
I'm very sensitive to this as well and haven't found the same with any of the Procella systems I've experienced, including two of the best residential setups.

Peter Jackson had an unlimited budget and no brand loyalty....but sound quality had to be paramount. He chose the P815s (because of the size of HIS room vs. standard P8s) for this reason. Heck of an endorsement.

There's also a reason why CEDIA chose a full Procella system for their no-hold-barred reference theater system at CEDIA HQ. Again, P815s for LCR, P6 sides and P8iw for Atmos. Also P18s for the subs.

I also agree with @nonstopdoc1 that the size of your room is much more befitting a Procella, JBL, Triad on the upper range to fill the room at reference but without distortion. Simple physics automatically pushes you in this direction, not to mention having a speaker with a waveguide to get the higher frequencies over the longer seating distances found in a larger home theater vs. ribbons, domes, etc.
Where can I find more information on the Peter Jackson home cinema with Procella Speakers? Any white paper or article about it?
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post #604 of 642 Old 01-20-2020, 01:01 PM
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Originally Posted by Peter M View Post
From my build thread -









Cheers,
What size is your room? Do you have a seat riser?
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post #605 of 642 Old 01-20-2020, 01:04 PM
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Quote:
Originally Posted by Lpcorleone View Post
Where can I find more information on the Peter Jackson home cinema with Procella Speakers? Any white paper or article about it?


https://vimeopro.com/imaginethisuk/l...screening-room

https://thecediadesigner.org/blog/po...edia-designer/


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post #606 of 642 Old 01-20-2020, 01:28 PM
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Can the p8's be stand mounted?

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post #607 of 642 Old 01-20-2020, 10:22 PM
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Originally Posted by Lpcorleone View Post
What size is your room? Do you have a seat riser?
The acoustic shell is 9.6m x 6.4m x 3.6m. The finished room is 7.5m x 6.2m x 3.3m.

There is a 300mm riser for the back row.

I've recently uploaded all my photos to a series of posts at the end of my build thread after Photobucket finally got around to killing my account.

Cheers,
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post #608 of 642 Old 01-21-2020, 12:19 AM
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Can the p8's be stand mounted?
Yes, of course they can be stand mounted. Can in contact with us via email, send us your drawings or sketches so we can advise you on best options for placement. [email protected]
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post #609 of 642 Old 01-28-2020, 02:05 PM
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Quote:
Originally Posted by Gerben Van Duyl View Post
Quote:
Originally Posted by ElJefe22 View Post
For a room size 22'9"x15'9"x9', what setup would be best for a 9.4.6 configuration. Just needing suggestions for bed and atmos channels
Your room is 22'9"x15'9"x9', or 6.9 x 4.8 x 2.75m, nice size room!

BEST (Hollywood studio quality, THX PM3 level) would be:
LCR: 3 x P815
Surrounds: 6 x P8 or P8iW
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P8 or P8iW

VERY VERY GOOD:
LCR: 3 x P815
Surrounds: 6 x P6 or P6V
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P6 or P5 or P5iW

VERY GOOD:
LCR: 3 x P610
Surrounds: 6 x P6 or P6V
Subs: 1 x P15FP, 3 x P15A
Ceiling: 6 x P5 or P5iW

Does that answer your question?
Hi Gerben. My room dimensions are similar, for budget reasons I am thinking of using p8 for lcr but not the p815. Maybe if I use different amps other than procella for the front speakers I could manage and buy the p815. I will be using ATI AT54xnc and AT52xnc on the system. What other amp beside procella can you recommend for the p815 ? I know that they need to have dsp.

Thanks
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post #610 of 642 Old 01-28-2020, 02:23 PM
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Originally Posted by farsider3000 View Post
Quote:
Originally Posted by avtrinity View Post
Hi,

I have a 5.1 system and I am planning to buy amplifier for the 5 ch (3 x P6; 2 x P5).

I have 2 options. And I want to know the pros and cons. Grateful if procella lover can shed me the light! Millions Thanks!

Option A
oem procella amp DA05 or DA06 from Labgruppen for 5 ch

Option B
ATI AT4000 amplifier for 5 ch

FYI. the .5 is a P15FP with DA06
I have the ATI nCore series D class amps (an 8 channel and a 6 channel) and they are dead silent in quite movie moments or when there is no signal sent to the amp. So that will be a major factor when comparing these two amps. ATI signal to noise ratio is 120+ (can't remember exact number) and they completely blew away the crown amps and red dragon D class amps I tried as the other D class amps were too noisy. I assume the Procella amps are D class as well.
Hey Farsider3000 can you share more about your home cinema (dimensions, list of equipment, etc) ? Thank you!
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post #611 of 642 Old 01-28-2020, 02:58 PM
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Quote:
Originally Posted by Lpcorleone View Post
Hi Gerben. My room dimensions are similar, for budget reasons I am thinking of using p8 for lcr but not the p815. Maybe if I use different amps other than procella for the front speakers I could manage and buy the p815. I will be using ATI AT54xnc and AT52xnc on the system. What other amp beside procella can you recommend for the p815 ? I know that they need to have dsp.

Thanks
Hi Corleone, first of all, the P8 by itself is a great choice and you can always upgrade to P815 just by adding the bass units later, just leave space and include wiring for them as you built your front wall.

Yes the ATI amps are very good, get the most powerful ones, with the highest current output. You can never have too much amp output. DSP can be external to the amp, either in the AV processor or in a Mini DSP or such, we can send you the EQ curves for programming those.

Go P815, they are fantastic! Precision, clarity, power, low distortion, they have it all!
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post #612 of 642 Old 01-28-2020, 07:54 PM
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Originally Posted by Lpcorleone View Post
Hey Farsider3000 can you share more about your home cinema (dimensions, list of equipment, etc) ? Thank you!


Room is 14ft wide x 9.5 ft tall x 23.5 ft deep. I use a Marantz AV8805 processor and Xilica DSP (for my four JTR subs). LCR amp is Parasound Halo A31 and surround amps are ATI nCore. Procella P8 LCR and P5 surrounds, rear ( P5iw ) and ceiling (6 P5iw).

Love my Procella speakers and I would use ATI for LCR if I was to do it again. The ATI nCore are plenty powerful, very low noise floor and a bit more revealing than the Parasound.

My room is purpose built (double wall construction with double 5/8” Sheetrock on each side with green glue) and baffle wall designed by Nyal Mellor.


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7.4.6 system: Processors:Marantz 8805 || Xilica XP4080 Amps: Parasound A31 and ATI AT528NC & AT526NC n-core ||Speakers: Procella P8 LCR, Procella P5/P5 in-wall
Subs: JTR Captivator subs: One S2, Two RS2, One S1
Screen: 2.40:1 Seymour XD Acoustically Transparent, 128" diagonal / 118" wide || Projector: JVC X570/RS420
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post #613 of 642 Old 02-03-2020, 09:07 AM
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My equipment is listed in my signature, including amps used with only P8 LCRs. If you look in my build thread, also in my signature, I went through a fairly extensive evaluation of different brands and types of amps, including price comparison per watt, etc.

Here is a link to my build thread for one of the conversations about which amps go best with Procella:

https://www.avsforum.com/forum/86-ul...l#post43242514

The conversation on which amps to buy goes on for about 10 pages, through about page 28 of my build thread. I did a cost analysis on ATI, Crown and many others. I spent a lot of time on choosing which amps to go with and am happy with my decision. In the end there are lots of great amps, but there are also other mitigating factors that may steer you more toward one than the other.

Click the attachment on this post as well...

https://www.avsforum.com/forum/86-ul...l#post43721738

Hope this helps you.

Evolution of My Theater Build

Speakers: Procella P8 (LCR), P6V (2 Front Side), P5 (2 Rear Side, 2 Rear, 4 Ceiling). Subs: Deep Sea Sound Custom 18" Mariana (4). Amps: Crown DCi 8|300 (2), SpeakerPower SP2-12000-HT. Processors: Yamaha CX-A5100, Xilica XP-8080 (2). Video: JVC RS400, 2.37 Seymour AV 120" Enlightor 4K Screen, Kaleidescape Strato, Philips BDP7501. Control: iRule.

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post #614 of 642 Old 02-26-2020, 01:52 AM
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Question Tweeter on top. Why?

According to Procella's System Design White Paper & Installation Handbook, speakers should always be mounted with the tweeter above the woofer, including the P5 and P5v when in vertical position. Why is that? How would it negatively impact the sound if I put the P5's upside down? For example, if I have the speakers vertically mounted against the side walls and close to the ceiling, putting the woofer on top could actually improve the sound by getting more boundary gain on the lower frequencies, and at the same time reduce some destructive SBIR.

A good idea and understanding lies at the base of every successful project.

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post #615 of 642 Old 02-26-2020, 07:20 AM
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Originally Posted by maikeldepotter View Post
According to Procella's System Design White Paper & Installation Handbook, speakers should always be mounted with the tweeter above the woofer, including the P5 and P5v when in vertical position. Why is that? How would it negatively impact the sound if I put the P5's upside down? For example, if I have the speakers vertically mounted against the side walls and close to the ceiling, putting the woofer on top could actually improve the sound by getting more boundary gain on the lower frequencies, and at the same time reduce some destructive SBIR.
Hi Maikel, as with all two-way speakers (except coaxials) there is a tilt in the vertical dispersion around the crossover frequency. With the P5 the response has a dip between 5-10 deg above the horizontal axis between 2~4kHz. So as long as you take this dispersion dip into consideration you should be OK.
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post #616 of 642 Old 02-26-2020, 07:27 AM
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Originally Posted by Gerben Van Duyl View Post
Hi Maikel, as with all two-way speakers (except coaxials) there is a tilt in the vertical dispersion around the crossover frequency. With the P5 the response has a dip between 5-10 deg below the horizontal axis between 2~4kHz. So as long as you take this dispersion dip into consideration you should be OK.
Great info! Thanks Gerben.

So if I understand correctly, that’s 5-10 degrees ABOVE the acoustical center with the speaker in vertical position and the tweeter on top.

Edit: Ok, I see you corrected that one from BELOW into ABOVE

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post #617 of 642 Old 02-28-2020, 02:27 AM
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Question Is targeting cabinet vibrations worthwhile?

Hi @Gerben Van Duyl , here's another one:

Even well-braced and internally dampened speakers will exhibit some cabinet vibrations, that can produce additional output, and consequently affect the way the speaker sound. Maybe not such an issue for a speaker weighing over 100 kg, but the smaller speakers like the P5's will probably be more prone to this phenomenon. In the old days, with less developed drivers, this was not necessarily considered a bad thing by some audiophiles as it could camouflage driver deficiencies (like harmonic distortions), and depending on the resonance frequencies even add some "nice warmth" to the sound. Nowadays, having high quality drivers like in the Procella's, cabinet resonance is probably something you want to prevent as much as possible.

Chapter 6 of Procella's Handbook recommends baffle wall installation behind a AT screen, as it improves the sound by eliminating:
1) frequency response dips caused by reflections off the back and side walls (RED.: The harmful SBIR effects);
2) sound reflected back through the screen and from the back wall behind the screen (RED.: By sound absorption by the baffle wall itself); and
3) diffraction from speaker cabinet edges (RED: By being flushed into the baffle wall).

The benefit that seems to be missing here, is the elimination of the aforementioned additional (unwanted) output caused by cabinet resonances.

My question is if targeting the reduction/ elimination of the effects of P5 cabinet resonances when you are NOT using a baffle wall, could be worthwhile. For example, you could place the speaker inside small box made of / and or lined inside with acoustical (vibration and/or sound absorbing) material, and mount that as a whole on the wall and ceiling (close enough to still benefit from boundary gain).

What do you think?

PS To be clear, I am not looking for possible ways to reduce or change the vibrations of the cabinet itself, and thereby changing the acoustic design of the speaker (e.g. by ridged clamping or putting heavy weight directly onto the cabinet). What I want is to reduce or eliminate the effect of the sound emanating from the cabinet in cases where the speakers are NOT part of a baffle wall.

A good idea and understanding lies at the base of every successful project.

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post #618 of 642 Old 02-29-2020, 10:09 AM
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Guys, I’m about to join the group with either the P28’s or P8’s for LCR. My question is screen. My thoughts are Stewart 130 G4 Microperf, SI pure white 1.3 AT or a Seymour screen. Anyone have any issues with these? My viewing distance will be 12’.

Thank you

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The Official Procella Audio Speakers Owners thread

Quote:
Originally Posted by Applemike68 View Post
Guys, I’m about to join the group with either the P28’s or P8’s for LCR. My question is screen. My thoughts are Stewart 130 G4 Microperf, SI pure white 1.3 AT or a Seymour screen. Anyone have any issues with these? My viewing distance will be 12’.



Thank you


Welcome to the Procella group. I love my all Procella theater (all Procella except for my JTR subs).

The P28 is ultra overkill if you are sitting 12 ft from the screen. The only advantage to the P28 is higher SPL and you definitely don’t need more SPL at that distance. My back row is about 17.5ft from my baffle wall and the P8 will blow your ears out if you want them to. My room was designed by acoustic engineer Nyal Mellor and I asked about the P28 and he confirmed with calculations that there is no value unless the room is a lot bigger with MLP further away.




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7.4.6 system: Processors:Marantz 8805 || Xilica XP4080 Amps: Parasound A31 and ATI AT528NC & AT526NC n-core ||Speakers: Procella P8 LCR, Procella P5/P5 in-wall
Subs: JTR Captivator subs: One S2, Two RS2, One S1
Screen: 2.40:1 Seymour XD Acoustically Transparent, 128" diagonal / 118" wide || Projector: JVC X570/RS420
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post #620 of 642 Old 02-29-2020, 11:42 AM
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Quote:
Originally Posted by Applemike68 View Post
Guys, I’m about to join the group with either the P28’s or P8’s for LCR. My question is screen. My thoughts are Stewart 130 G4 Microperf, SI pure white 1.3 AT or a Seymour screen. Anyone have any issues with these? My viewing distance will be 12’.

Thank you
Sonically no. (I have the Stewart And P8’s.) I sit 10-11 feet with a bright projector, (I believe I was originally around 30 ft/L +). I can occasionally see perf/sheen if I’m looking for it on bright objects. By no means distracting but if I had to do it over again I’d do the first row at 12-13 feet.

Regards, John
Video: Digital Projection 330 HighLite HC, Stewart 1.3 2.35 159 in, Radiance Pro, Anamorphic Lens
Audio: Trinnov Altitude16, QSC iCore250, QSC DCA 1622 Amps
Speakers: Procella P8's, P6V's, P18, Triad Silvers Atmos 11.3.4
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post #621 of 642 Old 02-29-2020, 11:49 AM
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Quote:
Originally Posted by Applemike68 View Post
Guys, I’m about to join the group with either the P28’s or P8’s for LCR. My question is screen. My thoughts are Stewart 130 G4 Microperf, SI pure white 1.3 AT or a Seymour screen. Anyone have any issues with these? My viewing distance will be 12’.



Thank you


I currently have the P28s for LCR and use the Stewart 130 microperf- although both will be changed with my theater remodel. Both are great. Picture on Stewart is excellent and P28s are fantastic for movies- in my 24x18 room, seem limitless on power and great dispersion.




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post #622 of 642 Old 03-03-2020, 06:33 AM
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Quote:
Originally Posted by maikeldepotter View Post
Hi @Gerben Van Duyl , here's another one:

Even well-braced and internally dampened speakers will exhibit some cabinet vibrations, that can produce additional output, and consequently affect the way the speaker sound. Maybe not such an issue for a speaker weighing over 100 kg, but the smaller speakers like the P5's will probably be more prone to this phenomenon. In the old days, with less developed drivers, this was not necessarily considered a bad thing by some audiophiles as it could camouflage driver deficiencies (like harmonic distortions), and depending on the resonance frequencies even add some "nice warmth" to the sound. Nowadays, having high quality drivers like in the Procella's, cabinet resonance is probably something you want to prevent as much as possible.

Chapter 6 of Procella's Handbook recommends baffle wall installation behind a AT screen, as it improves the sound by eliminating:
1) frequency response dips caused by reflections off the back and side walls (RED.: The harmful SBIR effects);
2) sound reflected back through the screen and from the back wall behind the screen (RED.: By sound absorption by the baffle wall itself); and
3) diffraction from speaker cabinet edges (RED: By being flushed into the baffle wall).

The benefit that seems to be missing here, is the elimination of the aforementioned additional (unwanted) output caused by cabinet resonances.

My question is if targeting the reduction/ elimination of the effects of P5 cabinet resonances when you are NOT using a baffle wall, could be worthwhile. For example, you could place the speaker inside small box made of / and or lined inside with acoustical (vibration and/or sound absorbing) material, and mount that as a whole on the wall and ceiling (close enough to still benefit from boundary gain).

What do you think?

PS To be clear, I am not looking for possible ways to reduce or change the vibrations of the cabinet itself, and thereby changing the acoustic design of the speaker (e.g. by ridged clamping or putting heavy weight directly onto the cabinet). What I want is to reduce or eliminate the effect of the sound emanating from the cabinet in cases where the speakers are NOT part of a baffle wall.
Hi Maikel,

"My question is if targeting the reduction/ elimination of the effects of P5 cabinet resonances when you are NOT using a baffle wall, could be worthwhile." No.

Our cabinets are designed not to have any vibrations or resonances, with internal bracing and 100% damping. We QA test every single loudspeaker with an automated measurement system to ensure sonic quality. I listen to P5 in my office, P6V in my living room and P8 in my private cinema almost every day. I don't think that trying to fix something that is not there is worth your time or effort, in fact you may create new problems.
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post #623 of 642 Old 03-03-2020, 09:00 PM
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What would the difference be in a room with dimensions like 20 x 15 x 9 between P6s, P8s and P815s as LCRs from a practical or cost/benefit standpoint? Would P815s be night and day different to P6s? Dont need ear bleeding sound and its not a huge room. I think in a huge room it matters a lot more.

Similar question would be using P8s vs P6s as surrounds or heights.

I dont mind spending the cash if its going to be *much* better.

Thanks.
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post #624 of 642 Old 03-03-2020, 11:39 PM
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Quote:
Originally Posted by Srubin View Post
What would the difference be in a room with dimensions like 20 x 15 x 9 between P6s, P8s and P815s as LCRs from a practical or cost/benefit standpoint? Would P815s be night and day different to P6s? Dont need ear bleeding sound and its not a huge room. I think in a huge room it matters a lot more.

Similar question would be using P8s vs P6s as surrounds or heights.

I dont mind spending the cash if its going to be *much* better.

Thanks.
Don't forget that between the P8s and P815s there are the P28s and P610s. P815s would be overkill in a room your size.

Cheers,
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post #625 of 642 Old 03-04-2020, 06:28 AM
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I was kind of going off what Gerben said for a room with similar dimensions. All systems suggested P815 or P610s as LCR and Im wondering if the gains are worth a much different price point? My understanding of the 610 and 815 is they play louder than their non subwoofer counterparts with less distortion. Also the P8 vs P28 is also just playing louder which I dont think I need.

Quote:
Originally Posted by Gerben Van Duyl View Post
Your room is 22'9"x15'9"x9', or 6.9 x 4.8 x 2.75m, nice size room!

BEST (Hollywood studio quality, THX PM3 level) would be:
LCR: 3 x P815
Surrounds: 6 x P8 or P8iW
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P8 or P8iW

VERY VERY GOOD:
LCR: 3 x P815
Surrounds: 6 x P6 or P6V
Subs: 1 x P18, 3 x P15A
Ceiling: 6 x P6 or P5 or P5iW

VERY GOOD:
LCR: 3 x P610
Surrounds: 6 x P6 or P6V
Subs: 1 x P15FP, 3 x P15A
Ceiling: 6 x P5 or P5iW

Does that answer your question?

Last edited by Srubin; 03-04-2020 at 06:37 AM.
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post #626 of 642 Old 03-04-2020, 06:50 AM
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The Official Procella Audio Speakers Owners thread

Quote:
Originally Posted by Srubin View Post
I was kind of going off what Gerben said for a room with similar dimensions. All systems suggested P815 or P610s as LCR and Im wondering if the gains are worth a much different price point? My understanding of the 610 and 815 is they play louder than their non subwoofer counterparts with less distortion. Also the P8 vs P28 is also just playing louder which I dont think I need.


I have P8s for LCR which are incredible but I think the P610 with the ability to play down to 60Hz would be nice. P815 are not overkill if you want to set your LCR as full range. The more capable your speakers the lower overall distortion of your system. I have four sealed JTR 18” subs (7 total 18” woofers) and some would say it’s overkill until they watch a movie and hear incredible low distortion extremely powerful bass that can handle any soundtrack with zero signs of distress.

Having said that, P8 LCR plus enough subwoofers can easily be a reference quality system in your room.

My room is 23.5 long by 14’ wide by 9.5’ tall and my P8 LCR plus ten P5/P5iw have never let me down and sound incredible.


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7.4.6 system: Processors:Marantz 8805 || Xilica XP4080 Amps: Parasound A31 and ATI AT528NC & AT526NC n-core ||Speakers: Procella P8 LCR, Procella P5/P5 in-wall
Subs: JTR Captivator subs: One S2, Two RS2, One S1
Screen: 2.40:1 Seymour XD Acoustically Transparent, 128" diagonal / 118" wide || Projector: JVC X570/RS420

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post #627 of 642 Old 03-04-2020, 10:16 AM
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Quote:
Originally Posted by Srubin View Post
What would the difference be in a room with dimensions like 20 x 15 x 9 between P6s, P8s and P815s as LCRs from a practical or cost/benefit standpoint? Would P815s be night and day different to P6s? Dont need ear bleeding sound and its not a huge room. I think in a huge room it matters a lot more.

Similar question would be using P8s vs P6s as surrounds or heights.

I dont mind spending the cash if its going to be *much* better.

Thanks.
Hi Srubin,

You room measures 20 x 15 x 9 or 6m x 4.6m x 2.7m. Reading your post and replies, I would recommend the following system for you, based on audio quality, not on 'more SPL', with the key comment you make being "Don't need ear bleeding sound"

VERY GOOD:
LCR: 3 x P610
Surrounds: 6 x P6 or P6V, or P5/P5V/P5iW
Main Subs: 1 x V18, P18, or P15FP (how much bass do you want?)
Balancing subs: 3 x P15A
Ceiling: 6 x P5 or P5iW

Also Very Good, Just Not Full Range:
LCR: 3 x P8
Surrounds: 6 x P6 or P6V, or P5/P5V/P5iW
Main Subs: 1 x V18, P18, or P15FP
Balancing subs: 3 x P15A
Ceiling: 6 x P5 or P5iW

FYI, the P8 and the P610 have the same SPL, as do the P28 and the P815 have the same SPL, just that the P8 and the P28 are not full range. So for your room the P8 and the P610 are the choices for LCR, as you are not looking for over-the-top SPL. I can't give you a final recommendation, as I love the P8 (8" driver for mid bass, fantastic!) and I love the P610 (full-range and so natural and balanced), so it would be like choosing a favourite between my children. From an engineering point of view I should recommend the P610 (full-range is always better), and from a sales point of view I should recommend the P610 as it is a bit more expensive, but the P8 is just lovely as well... ugh, choices!

As I am typing away: Yes they all sound the same, as we design our loudspeakers according to our Identical Voices(TM) principle, which means that the P6 and the P8 (and all other models) sound the same at the same SPL and the same distance. The P8 can produce THX reference level at 4m, the P610 can produce THX reference level at 4m but full range. You will be sitting at approx 4m so you will experience THX reference level if you turn it up. The back row may not experience full THX, but very close to it.
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post #628 of 642 Old 03-04-2020, 05:01 PM
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Quote:
Originally Posted by Srubin View Post
I was kind of going off what Gerben said for a room with similar dimensions. All systems suggested P815 or P610s as LCR and Im wondering if the gains are worth a much different price point? My understanding of the 610 and 815 is they play louder than their non subwoofer counterparts with less distortion. Also the P8 vs P28 is also just playing louder which I dont think I need.

Remember that the P610 is more complex than the P8 as, I believe, it requires a separate amp for the 10” bass module that will have to be integrated with the P6 speaker.... and when Gerben is stating full range vs not full range he is referring only to the LCR. If you add proper subwoofers the P8 system will definitely be full range.

Both P8 and P610 will sound incredible mounted in a baffle wall (as they are designed for this) and in a room with proper dimensions and acoustic treatments.

If you will not mount in a baffle wall I would recommend the P610.


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7.4.6 system: Processors:Marantz 8805 || Xilica XP4080 Amps: Parasound A31 and ATI AT528NC & AT526NC n-core ||Speakers: Procella P8 LCR, Procella P5/P5 in-wall
Subs: JTR Captivator subs: One S2, Two RS2, One S1
Screen: 2.40:1 Seymour XD Acoustically Transparent, 128" diagonal / 118" wide || Projector: JVC X570/RS420
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post #629 of 642 Old 03-04-2020, 11:08 PM
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I think the other consideration is what exactly is meant by "room size".

If you plan on having a baffle wall then the room size is obviously reduced.

My acoustic shell is 30' long but I lose 3' at the front for the baffle wall and 3' at the rear for the equipment room, so a final room size of 24'.

Cheers,
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post #630 of 642 Old 03-05-2020, 03:50 AM
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Regarding distortion, is that not typically a function of SPL? So in a room where a P610 is "enough" to achieve reference level, wouldn't a P815 do that with less distortion?

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