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Thread: Bgw amp plus eq for free!

  1. #226
    Senior Member RMC's Avatar
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    MY LAUGH OF THE DAY

    Sometimes marketing shows great imagination and a few exaggerations... Came across a Cerwin-Vega Web page ad from one of their dealers for a speaker part of their XLS series, model 215. Retailer wrote 24 hz bass which raised a red flag with me for the type of box shown, so went to see CV's speaker web page.

    That changed the 24hz bass story but the laugh remained: "Simply the biggest, baddest tower on the market... delivers earth-shaking bass down to 36 hz With guaranteed "eviction notice." LOL, not good for sales, never seen that one before, makes me wonder how many tenants, or even husbands for that matter, got evicted from home or found their suitcase on the sidewalk next to the XLS 215? Would the latter be part of the divorce settlement?

    Looking at the LF response data at the bottom of the page tells F3 38 hz and F10 36 hz!, pretty short of sismic bass, imagine at what level response would be for 24 hz. LF response that drops like a rock, like 7 db drop for two little hertz here, is often a sign of a bass bump right before the very steep drop. Smells like the "amplitude trick" once again.

    So, one probably won't get thrown out for earthquake bandwidth bass here, might be more for bumpy bass. On the interesting side I note the Waveguides for both the 6.5" cone mid and the dome tweeter which follows the market waveguide trend.

    Richard

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  2. #227
    Senior Member SEAWOLF97's Avatar
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    Quote Originally Posted by RMC View Post
    .. Came across a Cerwin-Vega Web page ad from one of their dealers for a speaker part of their XLS series
    Have never met anyone with a good impression of CV ... they may be same guys who like BOZE
    STRANGE ....is the new NORMAL

  3. #228
    Senior Member grumpy's Avatar
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    They had their day... that was quite awhile ago though.

  4. #229
    Senior Member RMC's Avatar
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    Hi Sea,

    I tend to agree with Grumpy and would add the following.

    There's followers, fans and forums on the Net for about every major speaker brand. So i assume there are folks out there who like Vega. I'm not a fan of them but i do recognize that in the old days both Vega and Bose had a few interesting items.

    My first ever crossover, 1980, was a CV which i still have in a box, its what i would call a "semi-active/passive" device, or a student's budget (which i was at the time) dividing network. CV made these 1980-1985. It is "active" in view of its location in the signal path, before amplification, but passive with regards to its fixed frequency. On pic note i removed the housing rivets to look inside, still nice, 12db/oct. CV had a few models available at the time with different fixed frequency and RCA or 1/4". I biamped the 2205H cabs with smaller satellite speakers, still do but with fully active crossovers now (i.e. no more student budget, lol).

    Decades back Vega Pro made its reputation and money with folded horn bass cabs such as the L48 something, B36A, etc. used in discos and in some "earthquake" setups. They added mid horns, tweeters, xo, amps, etc. They still make some folded horns, though model numbers have changed over time (see attach).

    JBL sure attracted more folks and market share with its large number of components available in the DIY speaker era, but that has changed too... Vega and Bose Pro didn't have many speaker components like Altec and JBL did, mostly finished products. However i remember CV's large double spider Stroker woofer (also in the attachment). Regards,

    EDIT: Tried to upload CV Pro brochure but its too large for LHF...

    Richard
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  5. #230
    Senior Member RMC's Avatar
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    Recently added some 12 gauge speaker cables, "lamp cord" type construction, though nicer one. Clear jacket makes these blend much better in my "decor" plus look more like home speaker cable to me than large AC type extention cords used in sound reinforcement.

    I generally agree with Philip Giggings' article on noise in Audio and the twisted wire pair, however each person has to assess his own situation and potential noise risk. In my case no transmitters or particular EMI sources near by, think noise potential for me is probably more on the equipment hookup side than on speaker cable side.

    Twisted 12 AWG wires lead to a relatively large round cable jacket, often black color, which basically appears like touring stage cables (white ones with MONOPRICE printed on jacket every foot or meter isn't sexier either), to me both would look somewhat gross in a home setup. Even more so when having a number of amps/speakers in a room then it would make those cables quite visible and seem like a performing stage...

    Richard

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  6. #231
    Senior Member RMC's Avatar
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    Been considering, along with another member, a "group purchase" of some Community driver, in as much as it may please both. Doing some research about that i came across a Community Manual today with some interesting info, more specifically another perspective on speaker wires, and twisted pair or not...

    In my view the important aspect here lies in the explanations given by Community. These may comfort some in their cable choice (e.g. Seawolf in Fave cable for JBL thread; myself in post # 230 here), or irritate others.

    Note also the suggestion of using 14/4 AWG "quad wiring" with the two pairs in parallel at each end leading to an effectively 3 gauge larger speaker cable, as previously mentioned here re Eargle's note in post # 80.

    Richard

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  7. #232
    Senior Member SEAWOLF97's Avatar
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    RMC , you are my main source for info on Canadian audio gear (tho Lee & Earl are great too)

    I have a nice little Creek 30wpc amp on my headboard to run the Senn 6xx's . Decided to add speakers to it for when they are preferred.

    Started with some Minimus 7's .. nice H & M, but little B. Tried some flat Yammy's , but same problem. Then some larger no-names with a 6.5 woof ... better.
    Then I remembered some old faves that I hadn't seen in a while .... started digging yesterday and found them ... LOGIK's. made in Canada.

    Hooked them up and very pleased with their sound..balanced, smooth and do have bass. Tried to find some info on these ... all that is available is that they were from same company as ENERGY's & MIRAGE's ... good heritage.

    They are NOT high end, but I really like them (more than my 18ti's)

    Shot some pics ... d/l them today and said "oh crap, 1 foam is now rotted" .. took a look and it's just a glue reflection. (I refoamed them abt 20 years ago)

    Sooo, do you know anything about the LOGIK line/series ????
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    STRANGE ....is the new NORMAL

  8. #233
    Senior Member RMC's Avatar
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    Hi Wolf,

    Long time no Sea. I can't recall ever seeing this Logik brand speakers. I did a quick search and attached here are the only things worth mentioning that i found, source being at the top of each page.

    Seemingly from Energy & Mirage heritage is not a bad thing hi-fi sound wise, as they made/still make quite listenable speakers, always subject to what one is looking for and budget (i.e. not in the same market as JBL Pro). Not surprised that you enjoy them, its fun to listen to other things than monsters sometimes.

    If they are house brand as some mention in the pics, getting more info might be difficult, even more so if they don't exist anymore. Plus i doubt Energy/Mirage would provide additional info. I think the data sheet is what you have shown printed on the back of the box and that's it. Not bad numbers though.

    RE do have Bass. The sensitivity number shown at 86 db does in my view confirm that. In such small boxes the only way to get bass is to sacrifice some efficiency for a little more LF bandwidth. Nothing wrong with this in view of the application. More so when JBL mentioned 85 db was a comfortable listening level (even saw from JBL further back in time 70-80 db was comfy). Welcome to the world of small boxes, i've enjoyed my small Mission and Polk Audio for decades... Regards,

    Richard

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  9. #234
    Senior Member SEAWOLF97's Avatar
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    Quote Originally Posted by RMC View Post
    Hi Wolf,

    RE do have Bass. The sensitivity number shown at 86 db does in my view confirm that. In such small boxes the only way to get bass is to sacrifice some efficiency for a little more LF bandwidth. Nothing wrong with this in view of the application. More so when JBL mentioned 85 db was a comfortable listening level (even saw from JBL further back in time 70-80 db was comfy). Welcome to the world of small boxes, i've enjoyed my small Mission and Polk Audio for decades... Regards,

    Richard
    these Logik's seem to be 1980's vintage ... Have read that both RMS ratings and sensitivity measurements have changed since then.

    I've had a couple pairs of Mission , they sounded good .. but the cabs always seemed to be falling apart. ?? Also Polks, but have always sold those on. Ideally , I really enjoy the British 8 inch, 2 ways. My JBL 18Ti's were underwhelming, despite having the stellar 044Ti and good heritage.

    A couple posts back, you were talking speaker wire. In abt 1970 I purchased a good mid-fi (mostly Pioneer) system from the japan PX, but when released on the civilized world, I didn't have 2 nickels to rub together. I found some telephone wire . You know , that pinkish jacketed 4 wire , solid core stuff. It's pretty fine gauge (20-22ga ?)

    I'd twist 2 pairs together and used it for 1 side of my stereo pair and then on the other... was surprised as to how good that solution sounded.
    STRANGE ....is the new NORMAL

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