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Post by widespreadpanic on Aug 23, 2019 17:36:11 GMT -5
They are the Airmotiv 6s powered monitors. 2 amps @100 watts each..
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Post by SteveH on Aug 23, 2019 18:19:15 GMT -5
Oblivion is an excellent movie for testing your entire setup, between all the sound effects in the movie and the soundtrack music done by M83, I could watch that film over and over and over just for the sound alone haha, the scene where Tom and Olga are in his flying machine and are getting chased by the three flying drones is insane when cranked up, or even the scene when he rappels down into the library and the drone comes in and blasts everyone to dust haha. Watched this last night. Great movie to watch to exercise your audio set up. Thank you for the recommendation!
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Post by 405x5 on Aug 24, 2019 9:06:34 GMT -5
Oblivion is an excellent movie for testing your entire setup, between all the sound effects in the movie and the soundtrack music done by M83, I could watch that film over and over and over just for the sound alone haha, the scene where Tom and Olga are in his flying machine and are getting chased by the three flying drones is insane when cranked up, or even the scene when he rappels down into the library and the drone comes in and blasts everyone to dust haha. Watched this last night. Great movie to watch to exercise your audio set up. Thank you for the recommendation! I wish all Blu-ray Discs were set up like this one. No need for bookmarks... It just picks up with “resume” even if you remove it from the machine. Sometimes, I’m amazed how unintuitive, some of the setup menus are to this day on discs. Bill
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Post by widespreadpanic on Aug 24, 2019 9:41:28 GMT -5
Yes Sir. Thank you kindly. I have a 18’ square room. At the 12 o’clock position is a fireplace. On either side of it is a window 6’ tall. At the 3 o’clock position is an open threshold. At the 7:30 position there is a door that I can close. I have several different size rugs to cover the parkay flooring. Shoot us some pics. Aren’t you using the stealth for your speakers? This is the room I will be setting the HT in. The first picture is of the front left and I went clockwise from there.
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Post by pop on Aug 24, 2019 12:04:22 GMT -5
Obviously try left and right corners for the subs first.
Sub crawl does work really well and looks like you have multiple options for placement.
Here’s a basic easy way to set both subs.
Start with one plugged in and play a solid line low frequency. Turn off the speakers. Adjust the phase on first sub to read highest DB output from your listening position. Then turn on the second sub (both subs on now) and adjust the phase on the second sub to read highest DB output summed between the two subs.
I find on PSA amps the sweet spot for gain is smack dab in the middle maybe one click up. Then adjust DB inside your processor. Too much gain on the subs will make them too sensitive and pick up frequencies your speakers should solely produce.
Again this is a very basic way to dial in both subs. But it’s a great starting point and you can tweak from there.
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Post by widespreadpanic on Aug 27, 2019 17:20:36 GMT -5
I got notification today that my subwoofers are on the way! My interconnects arrived today.
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Post by pop on Aug 28, 2019 14:08:22 GMT -5
Put the back brace on
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Post by donh50 on Aug 28, 2019 14:17:45 GMT -5
This is one of the classic papers on placing multiple subwoofers: www.harman.com/sites/default/files/multsubs_0.pdfMaggies were one reason I built my own sub ca. 1979 when few were available and I was a cheap (broke) college student. Since then the only time my main system has been subless was when it was in storage. I'll never convince the "music only no sub" crowd how much it adds, but my experience and measurements demonstrated the need 40 years ago and has been proven again numerous times since. Even with big full-range speakers such as I have now a set of subs makes the net sound much better. IME/IMO - Don
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Post by donh50 on Aug 28, 2019 21:12:39 GMT -5
Recently this came up (again, for the umpteenth time) on another forum. I cross-posted my reasons for using subs from there below. HTH - Don I use subs, and have for decades, for all the usual reasons: - Very (perhaps extremely) few "large" speakers actually play well below 40 Hz let alone 20 Hz. They distort heavily when presented with large bass signals (which most are -- see Fletcher-Munson) and driving them down low robs headroom for higher frequencies and causes distortion well above the fundamental signal frequency (harmonic and nasty intermodulation). Subs typically enable the mains to operate with much lower distortion.
- Very rare is the room setup such that the best place for stereo imaging and soundfield is the best place for the subs (or deep bass drivers) to counter room modes and such. Having independent subs provides placement options to smooth the in-room response. It is almost impossible to counter a null without subs (typically must move the MLP or change the room's dimensions though there are purpose-built panels that can also work). This is one of the things that led me to subs despite having quite capable mains.
- Powered subs offload the main amplifiers of the need to provide deep bass energy, providing more headroom and cleaner sound from the amplifiers.
- Music (let alone action movies) often contains deep bass content even if it is not real obvious. Kick drums, tympani, organ, sure, but also piano hammer strikes, plucked strings, beat patterns from instruments playing together, etc. May not really notice when they are there but usually obvious when they are taken away. Having subs fill in the bottom octave or three can make a difference.
- Purpose-built subs can provide high output cleanly at relatively low cost. The amplifiers and drivers need only cover a fairly limited frequency range so have fewer constraints upon them than woofers in a full-range system.
I do prefer main speakers with fairly deep bass and always have. Crossovers are not brick walls so a fair amount of energy still comes from the mains an octave below the crossover frequency. Higher-order crossovers allow you to reduce the overlap, but I still like having the capability. I have never really understood the idea of running "passive" bi-amping as implemented by an AVR (sending full-range signals to multiple channels and letting the speaker's crossovers separate frequency bands -- wastes amplifier headroom and seems to me of little benefit). Nor do I agree with the "plus" setting putting subs and mains in parallel; again, my idea has always been to isolate the two for the reasons above. My first sub was a DIY design using an Infinity IRS woofer with my own control box to provide the crossover and a servo circuit using the second voice coil of the woofer. I had a Hafler DH-220 around so also incorporated a circuit to bridge it for use as a subwoofer amp. It worked well and the -3 dB point was ~16 Hz. I now run four small (F12) Rythmik subs using a similar (but updated) servo design with my Revel Salon2's and am happy with the result. FWIWFM/IME/IMO/my 0.000001 cent (microcent) - Don
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Post by widespreadpanic on Aug 29, 2019 17:01:38 GMT -5
These were at the front door when I got home.
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Post by widespreadpanic on Aug 29, 2019 17:49:23 GMT -5
Insert picture here
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Post by widespreadpanic on Aug 29, 2019 19:23:55 GMT -5
These are gargantuan. Power Sound Audio Model v1510df
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,227
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Post by novisnick on Aug 29, 2019 19:45:37 GMT -5
These are gargantuan. Power Sound Audio Model v1510df I’m sure you’ll enjoy them! Love the sound of my PSA subs.
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Post by pedrocols on Aug 30, 2019 9:35:07 GMT -5
Nice!
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Post by pop on Aug 30, 2019 13:50:56 GMT -5
C’mon with it already. Hook them up
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Post by widespreadpanic on Aug 30, 2019 16:51:15 GMT -5
C’mon with it already. Hook them up Yeah id like to but I’m returning one due to damage during shipment. Big gouge in box and front of sub has been pierced and the shell or skin of the sub is torn. They were very prompt in responding, Power Sound Audio. I sent pictures of the damage. Also, there was nobody here to sign for the $1950 shipment but the fedex guy left them in the carport anyway. Luckily I have surveillance of the drop off with no signature in case fedex has issues. The fedex tracking site stated it was signed “CPOCH” I have no idea what those letters stand for. I guess I could put the one sub in my listening position to find the best two positions it sounds best and when I get the 2nd sub back I can just set them there?
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,227
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Post by novisnick on Aug 30, 2019 16:55:30 GMT -5
C’mon with it already. Hook them up Yeah id like to but I’m returning one due to damage during shipment. Big gouge in box and front of sub has been pierced and the shell or skin of the sub is torn. They were very prompt in responding, Power Sound Audio. I sent pictures of the damage. Also, there was nobody here to sign for the $1950 shipment but the fedex guy left them in the carport anyway. Luckily I have surveillance of the drop off with no signature in case fedex has issues. The fedex tracking site stated it was signed “CPOCH” I have no idea what those letters stand for. I guess I could put the one sub in my listening position to find the best two positions it sounds best and when I get the 2nd sub back I can just set them there? View AttachmentView AttachmentView Attachment
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Post by davidl81 on Aug 30, 2019 17:42:03 GMT -5
C’mon with it already. Hook them up Yeah id like to but I’m returning one due to damage during shipment. Big gouge in box and front of sub has been pierced and the shell or skin of the sub is torn. They were very prompt in responding, Power Sound Audio. I sent pictures of the damage. Also, there was nobody here to sign for the $1950 shipment but the fedex guy left them in the carport anyway. Luckily I have surveillance of the drop off with no signature in case fedex has issues. The fedex tracking site stated it was signed “CPOCH” I have no idea what those letters stand for. I guess I could put the one sub in my listening position to find the best two positions it sounds best and when I get the 2nd sub back I can just set them there? View AttachmentView AttachmentView AttachmentIt’s a shame that you can’t just get a decent discount on that second sub (assuming there is no internal damage) and just call it good. It looks like you could pretty easily touch up that (what looks to be) small amount of damage. The good thing on those PSA subs is that with the rough texture, a repair would be hard to notice.
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Post by widespreadpanic on Aug 30, 2019 17:51:05 GMT -5
Yeah that piece stays sticking out. It will not lay smooth. It is also in the front of the speaker. If it were in the back I would probably let it be. However I can be particular about things and this is new. I like the pride and admiration from others when I tell them how old something I have is and it looks new. I take care of my stuff and always have.
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Post by 405x5 on Aug 30, 2019 17:57:26 GMT -5
Yeah that piece stays sticking out. It will not lay smooth. It is also in the front of the speaker. If it were in the back I would probably let it be. However I can be particular about things and this is new. I like the pride and admiration from others when I tell them how old something I have is and it looks new. I take care of my stuff and always have. So sorry for your trouble. When my XMC1 was delivered, the UPS guy had the box precariously perched sideways up on his shoulder. Watching him waltz up the driveway I felt certain a second XMC1 would be needed. Luck was with me that day. Bill
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