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Imperial Russian Stout Build Thread

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  • fastbike1
    replied
    Re: Imperial Russian Stout Build Thread

    At current prices, using all film caps, figure $300 for XO, $320 for drivers. For the 120uf, I used 2x 47uf + 1x 27 uf. You could save significant money by using a single electrolytic. You'll have to decide if differences are audible. I already had all of the caps in my inventory so went film all the way. (47uf poly Daytons are ~$12 each and you need 4).

    Originally posted by brianbunge View Post
    I probably missed this since I'm up at an ungodly hour, but what did these cost to build? I'm itching for something new and these are exactly the size I'm looking for, plus I always love silver aluminum drivers! . Also, is the frequency response pretty flat? I love mids with some "presence" to them!

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  • brianbunge
    replied
    Re: Imperial Russian Stout Build Thread

    I probably missed this since I'm up at an ungodly hour, but what did these cost to build? I'm itching for something new and these are exactly the size I'm looking for, plus I always love silver aluminum drivers! . Also, is the frequency response pretty flat? I love mids with some "presence" to them!

    Leave a comment:


  • Brewski
    replied
    Re: Imperial Russian Stout Build Thread

    The design looks really cool once you're closer to building them I'll sim the drivers in the new locations to see if any crossover tweak would be needed.

    Take it easy
    Jay

    Leave a comment:


  • MarkL
    replied
    Re: Imperial Russian Stout Build Thread

    Here's my vision for my pair. Still thinking of a carbon fiber wrap for the baffle, but not sure how I will finish the cabinet, or what to do for feet.

    Hoping to get the cabinet made by CNC ... Tulsa has a "fab lab" near downtown with CNC machines available to the public. $60 for 4 hours, which should be enough to get a pair cut.

    Click image for larger version

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  • fastbike1
    replied
    Re: Imperial Russian Stout Build Thread

    That would make a striking build. Seems to me it would allow, at a minimum, a black painted cab, a veneered cab w/ Ebony stain, or maybe even a black laminate on the cab. One could even go all faux CF, but that might be too much.

    Getting carried away, the silver, CF, and some gray might look good. At least it did on my last Ducati.


    Originally posted by MarkL View Post

    I'm picturing a faux carbon fiber baffle, which ought to go well with those aluminum cones...

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  • Brewski
    replied
    Re: Imperial Russian Stout Build Thread

    I'd have to model it but since the tweeter and mid would be shifting where they are on the baffle by 8" down my guess is there would be some small crossover changes needed for the mid high pass and the tweeter. I'd intentionally avoided having the tweeter being equidistant on three measurements to the sides and the top of the baffle in the model for dispersion purposes but I'd need to model what would happen when it was shifted down.

    Take it easy
    Jay

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  • MarkL
    replied
    Re: Imperial Russian Stout Build Thread

    I have a pair of these in my long-term (next year) vision. However, I'd like to build them as a WTMW arrangement rather than the TMWW. Would that arrangement necessitate any xover changes, do ya think? I'd probably also front port.

    I'm picturing a faux carbon fiber baffle, which ought to go well with those aluminum cones...

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  • fastbike1
    replied
    Re: Imperial Russian Stout Build Thread

    Agree on the front port. I put it on the back for primarily cosmetic reasons. There was some really nice grain that I didn't want to interrupt with a large port.

    I would offer a caveat if you don't build to the same spec, i.e. 4" port. Modeled velocity w/ that port and tuning was 12 m/s. A 3" port at the same tuning is over 25 m/s. That might get you into chuffing territory because you can (and probably will) be pushing these speakers.
    I make my ports so it didn't really matter to me if I used 4" or 3" since the 4" fit w/o needing a bend.

    Steve: if yo go ahead and build these, I'll be happy to answer questions.

    Larry

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  • Brewski
    replied
    Re: Imperial Russian Stout Build Thread

    You'd be fine with them front ported below the woofers it's how the Ruinations are ported. Best of luck with the build.

    Take it easy
    Jay

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  • actaman
    replied
    Re: Imperial Russian Stout Build Thread

    Beautiful work! I'm looking forward to attempting a pair of these. Question: how would moving the port to the front affect the sound?

    Thanks,

    -Steve A.

    Leave a comment:


  • Brewski
    replied
    Re: Imperial Russian Stout Build Thread

    Originally posted by fastbike1 View Post
    That depends . . . . . . . :D

    I have parts for the ZX Spectrums and Swope CC. The previous nefarious plan was ZX Spectrum mains, Swope CC, Swope TM.

    The goodness of the Imperials (long time since I've had 3 ways) have cast that plan in doubt.

    Have been rethinking: Levitations for surrounds, Levitation w/ the CC tweak for center. -OR- Sending Jay more beer money and asking how he might tweak the Imperials if it was a sealed configuration similar to the Swope CC.
    What to do, what to do?

    Don't expect to act on any of this near term. Happy enough as is and have 2 pairs of 2 different subs I'd like to build, plus parts for at least 8 more speaker designs. :o
    I think levs and lev center would be an option, Roman R-Carpentar's FW146 bookshelves would also be a good option for surrounds. Here's a link to what I opted to go with along with woofer options (DC160 or FW168) for the center. The biggest drawback to to the 835004 is the bottom end since they don't have as much bass as the other options.

    Take it easy
    Jay

    http://techtalk.parts-express.com/sh...d.php?t=225796

    Leave a comment:


  • fastbike1
    replied
    Re: Imperial Russian Stout Build Thread

    That depends . . . . . . . :D

    I have parts for the ZX Spectrums and Swope CC. The previous nefarious plan was ZX Spectrum mains, Swope CC, Swope TM.

    The goodness of the Imperials (long time since I've had 3 ways) have cast that plan in doubt.

    Have been rethinking: Levitations for surrounds, Levitation w/ the CC tweak for center. -OR- Sending Jay more beer money and asking how he might tweak the Imperials if it was a sealed configuration similar to the Swope CC.
    What to do, what to do?

    Don't expect to act on any of this near term. Happy enough as is and have 2 pairs of 2 different subs I'd like to build, plus parts for at least 8 more speaker designs. :o




    Originally posted by MarkL View Post
    What's your plan for the center?

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  • MarkL
    replied
    Re: Imperial Russian Stout Build Thread

    Originally posted by fastbike1 View Post
    My nefarious plan of course includes new subs, center, etc for my media room (aka the Fortress of Solitude).
    What's your plan for the center?

    Leave a comment:


  • scottq
    replied
    Re: Imperial Russian Stout Build Thread

    Thanks for the feedback - I know it wasn't exactly on the original topic...

    Leave a comment:


  • fastbike1
    replied
    Re: Imperial Russian Stout Build Thread

    Haven't compared it to any of the older (or newer) Parasounds. My impression is that the 5250 is more robust. Certainly is by the specs and the tests that I've read have said the specs are accurate/conservative.
    Bought it in 07 because I was tired of asking myself if I should upgrade my amp. I don't ask that question anymore. Have no intention of changing. I believe the specs. It will do more than your circuit. 45 amps reserve/chanel 5 channels driven. It never gets hot and I don't think I've ever come close to really pushing it. I have listened to avg 90dB levels for a (short) while on symphonic stuff and get nothing but effortless music.

    It's paired w/ a New Classic 7100 which I'm also happy with, but have been thinking of replacing w/ a Halo P7. Could get a bit better bass management I think.


    Originally posted by scottq View Post
    Any thoughts on the 5250? Have you compared it to other Parasounds? Just curious how the "new classic" stuff is compared to the old HCA series. 5250 would really help fill my theater needs - have an HCA-855 that can't really keep up with the dual 1500A's bridged on the mains...
    Last edited by fastbike1; 08-07-2012, 10:33 AM. Reason: fat fingers

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