Best Of
Re: Post a picture.....any picture...part deux...
That’s Owsley Stanley’s Wall Of Sound, correct?
motorhead43026
3 ·
Re: Reel-to-Reel tape decks - only meant for headphones?
I've learned different decks set to slightly different reel table heights will wind tape closer to one side of reel or the other so sometimes the rub is inevitable. Ever run into a used prerecorded tape that was rewound upside down? I loaded a local purchase used tape once not paying attention (shiny side up) and thought something went wrong with the deck...lol
Since time constants are different for NAB 3.75ips you'll have to implement a separate switchable EQ for it, right? I've seen some tapeheads call 3.75 a compromise speed while others will fine tune record and playback EQ to make it sound as good as possible. You just have to watch record levels as 3.75 saturates easily. I've experimented with changing record EQ film caps in Teac A series decks. The older tape EQ results in a 2-3dB bump at 7-10kHz using modern tape, like LPR35. High marks to you going even further.
In my research reading older NAB/IEC EQ threads I recall the Tandberg TD20A had a special SE EQ setting. It was a proprietary Tandberg only EQ curve that lowered the noise floor ~ 10dB using standard tape. Like with dolby and dbx, you have to play it back using that SE setting. I know your playback is outside the box now, but I found it interesting Tandberg did that.
Since time constants are different for NAB 3.75ips you'll have to implement a separate switchable EQ for it, right? I've seen some tapeheads call 3.75 a compromise speed while others will fine tune record and playback EQ to make it sound as good as possible. You just have to watch record levels as 3.75 saturates easily. I've experimented with changing record EQ film caps in Teac A series decks. The older tape EQ results in a 2-3dB bump at 7-10kHz using modern tape, like LPR35. High marks to you going even further.
In my research reading older NAB/IEC EQ threads I recall the Tandberg TD20A had a special SE EQ setting. It was a proprietary Tandberg only EQ curve that lowered the noise floor ~ 10dB using standard tape. Like with dolby and dbx, you have to play it back using that SE setting. I know your playback is outside the box now, but I found it interesting Tandberg did that.
SCompRacer
1 ·
Re: Reel-to-Reel tape decks - only meant for headphones?
The Tandberg TD20A for all of its quirkiness is very pleasantly quiet, I sit about 3' from the transport and any extraneous noise can be a distraction. Since I play a lot of vintage prerecorded tapes they can sometimes rub against the reel flanges, but usually that goes away after a few minutes. There's no worry about sticky shed with prerecorded tapes so far. I recently bought a NOS Sony take up reel. In my semi-humble opinion they made the best take up reels, both 7" and 10.5".
Combined with the Hagerman Piccolo and the Marantz 7 clone it sounds pretty amazing. I recently played a Ray Charles live concert tape on the ABC label and it was audio bliss. Worth all of the hours spent measuring the frequency response and trying different loading combinations. Now if I can get 3.75 its tapes to sound the same way? Next challenge.
Combined with the Hagerman Piccolo and the Marantz 7 clone it sounds pretty amazing. I recently played a Ray Charles live concert tape on the ABC label and it was audio bliss. Worth all of the hours spent measuring the frequency response and trying different loading combinations. Now if I can get 3.75 its tapes to sound the same way? Next challenge.
SeleniumFalcon
1 ·
Re: Reel-to-Reel tape decks - only meant for headphones?
The only tape noise problems I have (that I notice) are the über-annoying sound of tape scraping a warped plastic reel once each revolution. 
mhardy6647
3 ·
Re: Monitor 4 upgrades
Needs just a little more light sanding and the clear coat to finish the 1st pair.
I think it would be cool to see what these sounds like if I swap out the MW6500 for the MW6502. Cool thing is I got 2 pair and could actually compare them to one another. Ordering some crossover parts as well.
DeRod
1 ·
Re: Monitor 7s recap
Wow. Quite the apple of discord I've rolled onto the table. Maybe I'll focus on refurbing the cabinets and stands, first! 
PeteyWheaty
1 ·
Re: Monitor 7s recap
Fair enough, my point was Polk didn't sign-off on alot of mods. They did sign-off on the plastic SL-2000's. Worst tweeter ever IMO.
xschop
1 ·
Re: Monitor 7s recap
PeteyWheaty wrote: »Before I pull the trigger, have I gotten it right?
Hell no, you don't want those and forget about the TL mod BS or advice from the speculators.
LMAO, WMG was a plethora of info on modding these vintage Polks.
From experience, the only great sounding 7C's with RD-0194's had billet plates installed. Full-modded 7C's with 198's are the best of vintage Polk monitors.
xschop
1 ·
Re: Diagnosing & Fixing Shifted Polk MW Drivers
This is a great thread. I had a seized driver in one of my 1987 5jrs, took it apart, cleaned it up, was getting ready for gluing and... the magnet slammed itself into the backing breaking the magnet in two! Sad. Anyway, I went through my other polks - 1988 RTA 8s and the other 5JR and epoxied the magnets with thickened west system. Found a fleabay driver, fingers crossed.
omfgppc
3 ·
Re: Post a picture.....any picture...part deux...
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$6500 obo (I have more than this invested FBM)
A lot of work has already been done to get this rusty old truck on the road. 5.3 ls engine from running suburban (mileage unknown)Including disc brake drop spindles in the front, new floor pans, rocker panels, door bottoms, fenders, windshield, engine, trans, and more. I’d love to finish it, but can’t seem to find the time or money. Needs brake lines plumbed, shifter, battery, wiring, gauges, seats and probably other stuff. Includes brand new glass for the whole vehicle and ecm that was flashed by lt1swap(dot)com
_______________ Real Life Definition of Frustration _________________
BlueBirdMusic
2 ·