Bass Pig's Lair Gets a Projection System

basspig

basspig

Full Audioholic
Since there seems not to be a forum for personal introductions, I'll make this thread do double-duty here. I am Mark Weiss, but most people in the audiophile world know me as Bass Pig, as I am 'curator' of the Bass Pig's Lair (oh, really, yes indeed...).

I've been building speakers longer than most of the US population has been alive. It's what I do for fun and my pursuit of perfection in sound.

When I settled in my present home in 1966, I was a fairly ordinary fellow.. but something happened which drew me into the search for great bass over the next eight years. By the mid-1970s, I was a changed man, suddenly less obsessed with radio, Tesla coils and using my body to light fluorescent tubes, and slowly becoming obsessed with bass. Several events, actually, lead me on that wild journey... one was a trip to Radio City Music hall, where I heard an honest-to-goodness Wurlitzer organ. Another was a wealthy audiophile friend, who showed me a JBL Paragon and some Cerwin-Vega speakers. Other events were trips to audio showrooms.

But I was a very sick man.. I wanted more, more, more than what they could give me. So by the mid70s, I started to study acoustics, principals of transducers, and found that audio behaves pretty much like RF--just the wavelengths are much longer. But nearly all of the standard rules apply--standing waves, peaks, nulls when two or more sources converge, etc. So I got busy in earnest, on my quest to build speakers. I'd built a few in the 1960s, but got serious a few years later, on the quest for that almighty bass.

I went through my horn-loaded phase, building a variety of horn-loaded LF systems. Eventually after another decade and ten new tried, tested and sold off designs/systems, I ended up with the present system. All through the 80s, 90s and halfway into the first decade of the 20th century, I was audio-only, for practical purposes, although in 1987, I made a small gesture to video and got me two Newvicon tube cameras and a NEC 19" CRT monitor. Until 2001, that would suffice. Then I got bit by the DV revolution and bought me a string of DV cameras, eventually ending up with a Sony TRV900 and two VX2000s for the next five years. The 19" monitor got replaced with a 32" TV..

2007 came and HDV was coming of age, and I bought me a Sony HVR-V1U. I was running a pretty much full-time business as a videographer by this time. Now it was time to go HDTV, so I bought a Vizio 47" LCD. It looked good--great compared to my SD TV and it was here until this past month.. that's when something happened that bit me with the projector bug.

Three weeks ago, I helped a friend calibrate his new projector. I'd last seen one in Best Buy, a Sony shooting an 80" Stuart screen and it was washed-out looking and unimpressive except for size. It was too dim. I dismissed it mentally and moved on looking at bigger, better LCDs. But I had a problem: I could not fit a larger TV between the speakers. I knew I wanted projection technology to vastly improve so I could go that route.

Back to my friend's projector... he'd gotten a sweet deal on a Mitsu HC6500 and had gotten a DaLite 16:9 110" screen. His problem was that he'd spent hours tweaking it but the blacks were only greys and colors were washed out. I spent about fifteen minutes with his setup and studied the menus, looking for the adjustments I needed to make and within that time, had achieved deep, dark blacks and punchy, saturated colors. He was ecstatic, and I was, to quote Johnny Cash in "A Boy Named Sue," "comin' away with a different point of view," on projector technology, that is.

So I researched projectors. The one weakness that bothered me with the Mitsu on my reference Blu-ray demo reel that I carried with me, was the audience in the darkened concert hall in my concert video was almost crushed to black and the projector was noted for having difficulty with shadow detail in night scenes in most of the reviews I found on it. So I went looking to find something even better. For a while, I was hitting the $20K mark just to make a modest improvement, but then I ran across a review on an InFocus IN82 and there were screen shots of a dark night scene with a train in a forest. I could clearly see the rich detail in the shadows and the reviews were encouraging. Only thing was it cost a lot more than the Mitsu.

Next day, I looked on eBay, and lo and behold, there was an IN82 with 76 hours on it There was only one bid, so I watched it, contacted the seller, found we had a philosophy in common and stayed on top of the auction. And then I sniped it at the end with two seconds to go--for $1425.

To make a long story short, that project just blew me away--just aiming it at a piece of sheet I'd bought for a temporary screen.

I stared on construction of a false wall in front of my 22' wide wall of speakers, a wall which would support a screen frame. But what was I going to use for an AT screen? I read, studied and researched, but the very expensive brands were given poor marks by audiophiles due to comb filtering and loss of treble detail. All these screens were perf screens with evenly spaced holes, just like the one in my local cineplex. Being an audio purist, I did not want that. So I studied more. Then I found two companies selling nearly identical materials and claiming true audio transparency, so I contacted the first, got no reply, so was lead to the second and got a sample. Read many happy reviews and invested $350 and bought a precut sheet of it.

We installed that screen on Friday night. Suddenly, the InFocus projector became a brilliant, creamy-smooth picture-maker. The linen sheet texture was visible across the room, but the weave on the new screen disappears from view beyond 5' and I was thrilled with the way it looks AND sounds. I listened to my reference recordings and, unlike the linen sheet, the treble was not audibly attenuated. So the 'guts' of my theater conversion are up and running.

Next comes the finishing touches--the Royalty 3 velvet curtains that my wife and inlaws are sewing for me, and the center channel speaker that I am constructing this weekend.

Serendipity was written all over this theater build. A JBL 2403 tweeter, to match the other pair in my mains, appeared on eBay for the first time under $1100. I made what seemed a ridiculous offer, but the seller accepted it. I found the tweeter needed refurbishing, and I did that work myself and now it's good as new. The last time I saw a 2403 on eBay was a year ago, and a pair of them for $1100. I needed just one. And here it was! Just one. So my center channel is coming along great. All I have to do is run the wiring and move a spare Hafler 500, bridged mono, to the amp rack and plug it into my DCX2496 Loudspeaker Manager/crossover.

Lots of little odds & ends to finish, but already we are watching movies on it and it's an awesome experience. I am noticing details that went unnoticed on my small 47" TV. The 30-bit projector also solved my banding problem and the exaggeration of noise in images by providing more levels of contrast.

I built a 154" screen in a 2.35:1 aspect. I ended up removing a loli column to make possible the projection, after doing exhaustive structure analysis of my self-design, self-built home. That column was another factor that kept me away from projection for many years, too.

The real, driving force for building the projection system was to see the footage I shoot with my CineAlta HD video cameras. Seeing it on the 154" screen gave me a new-found respect for the capabilities of the tools I use for my business.

I had a friend over this evening and he's starting up a stock footage business. He's been trying to convince me to put lots of my video library up for clip sales. So I fired up my demo reel that I'd authored on Blu-ray disc. There are several categories on there.. military air show, a vintage WWII aircraft association display, an equestrian show, various scenic clips, a laser light show that I'd created and recorded in HD, a classical concert I'd shot for a violinist/pianist from China, a Memorial Day parade with amazing audio with my Rode NT4 stereo X-Y mic on the CineAlta camera, and a southern rock concert I'd recorded for a band at a theater. We watched a variety of these segments and it was as if the screen were a big hole in the wall, bringing in a view of outdoor reality. There was no veil of 'celluloid', no grain, no fuzziness to the edges--it was like having 20/20 vision and looking directly into a 3D world.

What I'd hoped for was to at least equal my LCD for quality, only much bigger. What I got was a huge upgrade in quality, shadow detail, and brightness. Everyone says that the IN82 is bright, but to see it in person is quite the convincer.

So after 25 years in the present space, the Bass Pig's Lair gets a screen and picture worthy of the sound.
 
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mike c

mike c

Audioholic Warlord
welcome to audioholics! you need 5 posts to post pics ... go ahead and post some, i'll clean it up afterwards :)
 
croseiv

croseiv

Audioholic Samurai
Man, with your handle being basspig, I bet you have some nice subs...
 
F

FNG212

Audioholic
post! post! post!

As an aspiring bass head, I look forward to your contributions on this forum. Get that post count up and show off your gear!
 
basspig

basspig

Full Audioholic
Welcome to the forum!


...or really like fish. :)
Ah, the vagaries of printed English! Indeed, it's the audio kind, rather than the swimming kind (although I do enjoy a good baked salmon with garlic).

The origin of that handle has a small story.. actually it goes back about four decades in its origin in a shorter version, "bass" because that's what my friends used to call me because of my speaking voice.

Fast foward to 1989, when I'm involved in an anime club (discovered anime after I retired in 1985, watching daytime television) and meet a HAM radio guy who happens to be fascinated with Japanese anime, through another local HAM. We meet at my 'studio' in Dec '89, he sees and hears the sound system and immediately labels me a "Bass Pig". The monicker stuck, as disgusting and rude as it is, and so here I am with this stigmatic handle. Back in my citizen's band days, I was just 'Connecticut Yankee', nothing odd. Now I'm some porcine critter because I lust for high vibratory amplitudes. Go figure!
 
basspig

basspig

Full Audioholic
Man, with your handle being basspig, I bet you have some nice subs...
So people tell me! I have a few videos on YouTube, not my idea, but this HAM buddy of mine suggested I post my sound physics demonstrations there. It's really 'raised' a lot of controversy, so I made another video with a wide angle to show there were no tricks like hidden leaf blowers and such. I just want to enjoy pipe organ music in an all-consuming manner, but sometimes unexpected side effects happen.. :)
 
basspig

basspig

Full Audioholic
post! post! post!

As an aspiring bass head, I look forward to your contributions on this forum. Get that post count up and show off your gear!
This thread is somewhat of an online diary of my construction project. Soon I'll hit 5 posts!

Costco was having a special on "True Ottoman Chairs" this weekend (not a regular stock item), so Mary Ann and I just returned from there with two black chairs that look identical to theater seating we see on home theater forums. They're approved by the orthopedic / chiropractic association and they are very comfortable and have good posture. They also sit low to the floor so my big ugly head won't get into the projector beam when I'm seated.
We got the last two. Another couple bought two, just seconds before we got there. It was their second trip, as they said they are very pleased with the first set.

We also stopped at Jo-Ann Fabrics and I bought 6 yards of polyester black jet-set. This will serve as a base behind the curtains and the remaining 2 yards will be the cover of acoustic panels that will mount on the ceiling in front of the screen area. They serve a dual purpose (actually triple purpose, as they add a nice decor touch to the room) of absorbing early reflections off the ceiling and as a light absorber to improve contrast during bright scenes by covering the white ceiling in the immediate viscinity of the screen top area. Bright scenes light up the room like the overhead lighting is on, so it's imperative that nearby white surfaces be covered in black! On the floor, I have about 120 sq ft of dark burgundy carpet left over from the livingroom W-W carpet that I can unroll in front of the screen. It will soften the acoustic reflections on the floor and darken the floor in the immediate area of the screen. This is turning out really nice. I think I may go to $2500 on my budget, now with adding theater seating ($169 each at Costco) and a few tens of dollars for fabric to make my acoustic panels.

I have the room pretty flat from 43Hz to 110Hz, +/- 2dB @ 9' from the array of speakers, just have some notches at 38Hz and 220Hz to solve.
 
croseiv

croseiv

Audioholic Samurai
So people tell me! I have a few videos on YouTube, not my idea, but this HAM buddy of mine suggested I post my sound physics demonstrations there. It's really 'raised' a lot of controversy, so I made another video with a wide angle to show there were no tricks like hidden leaf blowers and such. I just want to enjoy pipe organ music in an all-consuming manner, but sometimes unexpected side effects happen.. :)
You know I thought I recognized the handle there. Yep your subs are very impressive. It's a pleasure to communicate with you.:cool: Those vids are quite impressive.
 
sawzalot

sawzalot

Audioholic Samurai
I am starting to feel like a Striped Bass looking at a 14 " eel just waiting to bite, now that you baited me how about a link to the goods lets see your set-up, Thanks :)
 
croseiv

croseiv

Audioholic Samurai
I am starting to feel like a Striped Bass looking at a 14 " eel just waiting to bite, now that you baited me how about a link to the goods lets see your set-up, Thanks :)
Just go to YouTube and look up "basspig".
 
Alex2507

Alex2507

Audioholic Slumlord
Wow. I had a little trouble with the first post on account of my ADD kicking in but I took a look at the YouTube stuff and realized that I have the same ADC SS-525X toy but that's where the similarity in our gear ends too. :rolleyes:

Welcome aboard and turn that down. :)

 
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basspig

basspig

Full Audioholic
I am starting to feel like a Striped Bass looking at a 14 " eel just waiting to bite, now that you baited me how about a link to the goods lets see your set-up, Thanks :)
How about an electric eel? :) (My daughter is very much into electric eels after I showed her that they can produce 500 watts of electric power and can light a Christmas tree via induction pickup though water.)
 
basspig

basspig

Full Audioholic
Construction Status: 8/2/2009

Slow weekend overall with family activities... have been waiting for glue to dry on baffles in center channel speaker cabinet.
Started construction of a a dual-purpose acoustic absorber. Built one this evening, using 3 layers of 5/8" rigid fiberglass 2x4' tiles, side by side, with each layer rotated 90º and glued to the one below it, surrounded by a 1x2 wooden frame, with black polyester Jet Set stretched over it and stapled to the back of the frame. I need to buy eye hooks to screw into the frame on Monday, and hang it. Need to buy more material too and more glue.
These absorbers will be hung just above the screen to absorb both light and sound. I think it's also going to add a touch of 'high tech' studio appearance, which will be a good show for my clients (it's always nicer to have an aesthetically "means business" screening room that looks like it was designed for serious sound, than a plain undecorated space, as I've had for half a century. This will go a long way to helping things on all fronts.
 
basspig

basspig

Full Audioholic
Photos, at last!

Five at a time, in order that they were uploaded:

The Seymour AV Products DIY AT screen, mounted to frame and in place,
The frame being stapled, shown on floor with plastic laid out and light blocker tacked in place,
My ingenious projector mount, using universal drawer sliders as tracks and a plywood mounting sled,
The JBL E120 and 2403 drivers that will be used for the center channel speaker,
The InFocus IN82 projector I got, open box with 82 hours' use on eBay.
 

Attachments

basspig

basspig

Full Audioholic
More Photos..

Royalty 3 velvet for drapes, ready to sew,
The tracks where the projector sled attached to carrying beam,
A wide shot, taken from 2/3 toward back of room, showing more of studio,
My wife and her father, sewing the curtains from the purchased velvet.

This project has been a terrific catalyst for bringing me and my inlaws closer together. Now they're participating in the construction and they come down here every night to watch movies.

Looks like it will soon be time to revive the Japanese animation club screening events!
 

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basspig

basspig

Full Audioholic
Home-made bass traps: Three layers of Armstrong fiberglass tiles, surrounded by 1x2 wooden frame with black jet set cloth stretch over and stapled from the back. Frames are 50" square.
 

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basspig

basspig

Full Audioholic
Built the crossover network for the tweeter of the center channel today. Looks like I'm out of quota so I can only upload the top side. Bottom is identical but for one more resistor:



HDMI cables came today. Installed above grid ceiling and moved BD players to rack. Reconfigured 2nd DCX2496 for left-surround/center/right surround and adjusted dynamic EQs to make the rear speakers sound fuller. With bass traps on ceiling, audio is the best ever! I'm hearing stuff that I never noticed before in music I'm very familiar with. All those little side harmonies and minor instruments in the mix...

No more upload space for photos, so I'll delete some later to make room for finishing work photos.

Spent a lot of time pulling cables and configuring active crossover for the rear surrounds and center channel. Have one more special cable to make for the center channel amp to bridge mono.

The theater is functional for the most part, just need to finish aesthetic parts.
 
basspig

basspig

Full Audioholic
Ah, the odor of paint and turpentine fills the air.. center channel cabinet is painted! Crossover network is ready to install, just have to put in fiberglass insulation Thursday, load the crossover, wire the drivers, bolt in drivers, and connector panel and testing begins! Also built the left 'wing' of the screen wall today.

Picked up the last chair at Costco Wednesday.. got $40 off the demo, which was all that they had left. No more on order. So I have three chairs now. One in the 'sweet spot' of the Sonic Hologram and boy is it ever sweet! I put on an old Burt Bacharach album, "Hit Maker!" and the track "Don't Go Breaking My Heart" and it sounded so sweet, despite its age. 'Can't wait to crank this baby up to insane levels this week!


Left to do:

Make bridging cable to go from center output of DCX2496 to fourth Hafler amp.
Prep and run speaker cable from center speaker to center channel amp.
Build right side wing wall.
Insulate center speaker cabinet, install drivers, wire and test.
Install center speaker behind screen.
Finish sewing curtains and mount track rods.
Mount curtains.
Put down dark colored carpet in front of screen wall.


There is no more effective way to prove the efficacy of room acoustic treatments than to actually install them and do before and after sweeps and music listening tests.
Since installing the light/sound traps on the ceiling, the Carver Sonic Hologram image has become more clearly-defined. Instruments now exist in their own discreet spaces, no longer blurred together.
The bass is no longer muddy, but clearly-defined. What a difference!

My Blu-ray player is installed in the rack now, as I ran the 20' HDMI cable in the ceiling last night. Rewired the audio to get it all happening from the rack.
The DVI cable I had bought for the editing workstation to feed the projector doesn't fit the connector. Apparently the IN82 has a M1-DA DVI cable, which has ten groups of 3 pins and is wider than a garden-variety DVI cable, so I've found and ordered the correct cable. Those Monoprice cables are massive and heavy-duty.

Massive picture and astonishing sound quality!
Watched my Blu-ray disc that I recorded and mastered of Anita Chen playing in concert with the GBSO. Having sat in that hall during rehearsal, I can recall the actual experience and with full surround, the experience is sonically identical to the experience I had in the 4th row the night before I recorded her performance. She performs on Violin and on Piano in this concert and both sound so articulate and natural. The surround is just perfect--it's not obvious, but the hall acoustics are 'just there' and without it you notice something missing. Just dying to see how the center speaker enhances the experience this weekend!
 

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