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mikebse2a3

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Posts posted by mikebse2a3

  1. 5 hours ago, jwc said:

    This product I've used in more than one system and I own 2 of them.  I feel it doesn't degrade the sound.  Makes those vintage amps dead quiet when hooked to a pro active XO.  

     

    JW may not approve...but it helps me.  The bottom MC250 is all RCA from the Mac preamp to the Heresys.  The top one I have the Jenson to use that with dbx and MC250 amp for the Klipsch horns.  Quiet as a mouse.

     

    Screenshot_20240424_195007_Chrome.jpg


    I agree with JC and highly recommend the Jensen ISO-MAX units and use them in my systems.  
     

    FYI …. Jensen recommends the use of their PI (Input Transformer designs) whenever you have the option over their PO (Output Transformer designs). The Pl-2XX with input type transforms will give better performance than the PO-2XX unless you absolutely need to run an output transformer type.

     

    Some info for anyone interested…

     

    IMG_6087.thumb.jpeg.301ab2bfb62dda06b38414d6523a78a8.jpeg

     

    IMG_6085.thumb.jpeg.7062b4e43b7f5e0db0d68b545c2c3313.jpeg

     

    IMG_6086.thumb.jpeg.40ab9b4e86b3ee1d3322cca3ce3a44ea.jpeg

     

    • Like 1
  2. 22 hours ago, kippy said:

    Additionally, would I still need my sub? When I heard the Jubilee speakers they sounded like they could go down to the lower frequences much better than my old Klipschorns. I enjoy movies and dance music so wondering if I really need the sub.

     

    Based on my experiences with the Heritage Jubilee and the quality and extension of it’s bass reproduction I would start with no additional subs and if for some reason I felt the need for another sub due to room acoustics/setup limitations then I would personally only consider the appropriate sized (due to be introduced in the near(?) future) horn loaded Heritage Subs to maintain the quality of the system with the Heritage Jubilee.

    • Like 2
  3. 11 hours ago, kippy said:

     

    I am treating it as a dedicated listening room, but my partner, well, she might have other ideas :)

     

    I will take some pics of the space and post. It's carpeted, 8 ft ceilings, not a lot of glass to reflect the sound off of. Planning to put the speakers on either side of a french door facing the ocean. Distance between the speakers (and listener) will be about 12' or 13' feet, def not going into the corners as the space is quite large.

     

    Sounds like a really nice space kippy with the potential for an amazing listening experience.

     

    The soundstage/imaging can be amazing with the Heritage Jubilee when installed into a good acoustical space and is a highly valued aspect of sound reproduction speaking for myself.

     

    I’m curious what loudspeakers have you been using and is your current system in the same space where the Heritage Jubilee will be installed? 

    • Like 1
  4. 19 minutes ago, kippy said:

    Thanks kindly for the response and suggestion to read the post, diving into that now. My room is about 35 x 45, a fairly large space.

     

    I’m curious… is this a multiple purpose space or dedicated listening room where you will have more freedom to integrate the loudspeakers and use acoustical treatments as needed…?

     

    Would love to see any pictures you care to share of the listening room.

     

    miketn🙂

  5. @kippy congratulations on your purchase of the Heritage Jubilee which are amazing…!!!

     

    Your MC252 will most likely be a very good match and well worth giving them a chance before trying anything different.

     

    Getting the loudspeaker/room integration optimized is where the magic happens… 🙂👍

     

     

    miketn

    • Like 2
    • Thanks 1
  6. 3 hours ago, JohnA said:

    I know what happens when inductors are paralleled, but why would you ever do that? 

     

    3 hours ago, JohnA said:

    This is asked in the realm of relatively low power electronic circuits in radio transmitters/receivers, like 20 to 1000 watts.  But it could apply to crossovers. 

     

    I suspect it might be the best way to obtain desired Q values at the frequencies of interest in a particular circuit as it relates to compromises in building real world inductors.

  7. 3 hours ago, babadono said:

    I added some HEIL AMTs to my 2 way UG Jubes. Only using right now at 5kHz and above. Definitely adds some air. Even with the 402s already having TADs

     

    Interesting…. But I would suggest the Heil AMTs be vertically aligned and as close to the K402 as possible to minimize image smearing assuming you want the best imaging possible with this configuration.

     

    miketn 🙂

  8. 16 hours ago, ThomBoh said:

    I have tried three different Decware tube amplifiers (two different SE84UFO25s, and the new SEWE300B) and have found that with all three of them, when paired with my La Scala AL5s, there is a loud 60 or 120 Hz (maybe both) hum. This hum is independent of gain/volume setting on the amplifiers, always the same volume. I measure this baseline hum at 59 dB in my listening chair using a handheld decibel meter (C weighted).

     

    Reading through this thread it sure seems apparent to me that it is the Decware amplifiers are the source of your Hum Issue.

     

    The question then becomes why are you experiencing it at such a high SPL level at the listening chair.

     

    This makes me ask how you experience the Hum when you walk around in the room.? Do you hear it as significantly louder and quieter as you move around and also as you measure it with your SPL Meter?

     

    I could see in an unfortunate situation where a possibility that room modes at 60Hz/120Hz could be coupling very efficiently with the loudspeaker and listening positions that would exasperate the inherent by design hum of these amplifiers.

     

    An unfortunate combination of room dimensions could lead to Room Modes that could easily add +12db to the Hum Level at some areas of the room.

     

    Just a thought anyway and I hope you find a solution to this problem… 🙂

     

    miketn

     

     

    • Like 1
  9. 12 hours ago, garyc_06820 said:

    Since I am actually building walls, I am just looking for the actual dimension that gets me the best extension that the klipschorn is capable of.

     

    Well the DPH paper say’s Neglible Improvement past 4ft so whatever gives you peace of mind 🙂

     

     

     

    IMG_5898.thumb.jpeg.8ad303f3164b5f290abe091130787a10.jpeg

    • Haha 1
  10. 20 minutes ago, shawnwes said:

    I actually am heading out to the post office this morning to pick up a copy of The VTL Book Vol 1 that I found on Ebay. I believe that's where those pictures are from.

     

    I hope it does…. I have the “The Vacuum Tube Logic Book - Second Edition” and none of the resistors or capacitor values are on the schematic and it also appears to have a mistake (ie: connection line is missing from 2.7k resistor to DIP Switch Resistors) as seen in the schematic drawing above where the DIP Switch resistors are not shown as being in parallel when in the “ON Position” with the 2.7k resistor shown in the above schematic. 

     

    Yes you should be able to determine the values with a meter.

  11. 3 hours ago, shawnwes said:

    No response from Bea & Luke at VTL regarding  purchasing a copy of the manual. It's mostly for the MC dipswitch values I'd like it but I can probably figure them out by reading the resistor values and assume they would be wired in parallel so whichever ones are turned on would sum.

     

    @shawnwes  You can find more pictures here if you haven’t seen these before that might help you.

     

    https://www.stereonet.com/forums/topic/248051-withdrawn-or-relisted-fs-vtl-the-ultimate-preamplifier/

     

     

    Here are a few pictures of a VTL Ultimate Pre-Amplifier and the schematics I was able to see before I was locked out and requested to join the group.

     

    IMG_5896.thumb.jpeg.d1de7009eebe3d49f9bb1cf6042ca8b1.jpeg

     

    IMG_5895.thumb.jpeg.b57abaa7426fba4d7533d7c8ff8db6a9.jpeg

     

    IMG_5894.thumb.jpeg.5d2fbd77917e236c2feea628c3d5c806.jpeg

     

    IMG_5893.thumb.jpeg.7cd23e0c78b0025729f3c0d49c71d259.jpeg

     

     

     

     

    This one was on another topic post on the same website.

     

    IMG_5897.thumb.jpeg.08b62a9e4ab19d8650c5cd702569b262.jpeg

  12. I’m thinking this was posted in the past here but I thought this nice Interactive Frequency Chart may be a helpful tool for those trying to evaluate their systems performance by being helpful in narrowing down what areas they feel could need improvement.

     

    This link will take you to the actual “Interactive Frequency Chart” 

    https://alexiy.nl/eq_chart/

     

     

    Example: This picture below shows the Instrument Data for MALE VOCAL

     

    IMG_5883.thumb.jpeg.b4db9337b0c80420715cfd676fd16724.jpeg

     

     

    miketn🙂

     

     

    • Like 1
  13. 6 hours ago, babadono said:

    Mike did you see in the Guits and more thread you can bid on some of Mark's guitars too:)

     

    I can play a CD but not so much a guitar 😁

    • Haha 1
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