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kehern15

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About kehern15

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  • Birthday 02/10/1991

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  1. kehern15

    You can now salvage un-salvageable OLA's

    Very interesting, and well done. Undoubtedly many people will find this useful for broken Advents. Out of curiosity, what causes the 1-2K dip in the OLA's frequency response?
  2. kehern15

    Advent BSC switch?

    Alright guys, I figured out how to mount everything and soldered it up! Attached are pictures, I'm not the best at soldering, having only built the crossovers for my overnight sensations before. Everything seems to work fine, as far as I can tell. I briefly tested it (it is midnight here, so I couldn't give it a proper listen, my impressions will follow in a few days) I am a bit confused as to when the circuit is engaged, and when it's off. I believe that I understand it, but I would just like some help clarifying. When the toggle is in a direction, the opposite circuit is engaged, correct? Meaning, and I built this exactly as the image Pete posted, when the toggle is pointed towards the input direction, the BSC circuit is on? The highs should be subdued when the circuit is on, if I have understood Pete's description of the BSC (it actually reduces the highs/mids, to allow the bass to be more present) I have attached a crude drawing, hopefully my question makes sense. Also attached is the spec sheet for this switch. So everyone, how did I do? I will also post in the Audiokarma forum, if everything checks out! MS-100737-199823.pdf
  3. kehern15

    Advent BSC switch?

    Alright guys, everything arrived today! I have two very amateur questions though, regarding how to mount/assemble the phono jacks and the switch. The phono jacks some with two plastic sheaths, a solder tab, and two nuts. The switch with two nuts, one washer with a small tab on it, and another washer with "teeth". So how do I mount these to the plastic project box? As in, what's the order of all the parts? (nut, washer, box, washer, nut? etc) Attached are pictures, if that helps.
  4. kehern15

    Advent BSC switch?

    Pete, I messed with the jumpers a bit tonight, and honestly couldn't hear much, if any difference. I listened to pieces with high violin parts (Kishi Bashi and Paganini's Caprices). Those pieces have the highest, and possibly most piercing treble in my music library, and they sounded similar to me (I removed a jumper from one channel only, and listening, then switched the channels, listened, etc) I looked into the frequency range of most natural instruments, it seems like very few go past 10-11k, so I wonder how much the high frequency boost "practically" effects sound, especially in the types of music I listen to. When I build my BSC, I will be including the HF boost, because I can always help tame it with the switch on the Advents. In terms of comparing the Advents to the OS's, I will be doing that after I build my own BSC with a 4dB boost, as it's time consuming and tedious to switch out the BSC right now, and because I still feel that a 6dB boost has too much bass. I'll update once I build the BSC.
  5. kehern15

    Advent BSC switch?

    Ah I was just matching the switch types, will this one work? http://www.mouser.com/ProductDetail/Mountain-Switch/108-1MD1T1B1M1QE-EVX/?qs=sGAEpiMZZMvudeGI7i40XBPcICwamDQ%252bOiJTqCzAFNM%3d
  6. kehern15

    Advent BSC switch?

    Will this switch work as well? It seems to have the same specs, also has some hardware as a bushing, making it look cleaner when mounted imo. http://www.mouser.com/ProductDetail/NKK-Switches/M2022S2A1W01-RO/?qs=sGAEpiMZZMvudeGI7i40XOzZDxmIb%2fGZmOK19QoSx90%3d
  7. kehern15

    Advent BSC switch?

    I'll use the updated switch Pete, thanks.
  8. kehern15

    Advent BSC switch?

    I mainly wanted gold plating for corrosion resistance, not fr any magical audio effect. I was going to pick up some simple ring terminals, but I also stumbled across this, do you think it would work/fit the advents? Couldn't find the equivalent ring size. http://www.amazon.com/Ariic-Adapter-Marantz-Mcintosh-Amplifier/dp/B00CRSQZF2/ref=sr_1_1?ie=UTF8&qid=1427141622&sr=8-1&keywords=banana+fork My preamp is a USB powered DAC, the Behringer UCA202. I am unsure if it can drive low impedance loads, for what it's worth, the only specs I could find on it's RCA outputs are: 400 ohms, and 2dBV max. No, I wasn't going to do anything extreme like replace the advents binding posts. Was just seeing if there was an easy way to terminate the speaker wire for attachment, I'm probably going to use a ring terminal, or those banana plug adapters I linked to in this post.
  9. kehern15

    Advent BSC switch?

    Thanks! I'll give it a double check and order everything. Yeah I just figured I might as well order a few more things as I was already paying for shipping, was just making sure that I wasn't missing anything in their massive inventory of everything. I'll probably order from Monoprice soon. I remember you having some advents for a bit, did you ever use some sort of non bare wire termination? Not sure what to use as banana plugs don't fit on advents, and most angled spade adapters are $30+ (1/3 the price of the speakers!) Thanks Pete. Ah excuse me, I quickly glanced at that. +/-2.5 is more accurate, and I see where you got +/-1.5, though from what I understand about the BSC, making mine with 4dB will make the 2-4kHz dip less dramatic? (ie less of a dB dip). Just trying to better understand how the BSC works/effects the speakers. I saw the little snippet of info on the back of the BSC box, I didn't hear much of a difference. Admittedly, I didn't play with it for more than a minute or two, and probably not with music with many high notes, I'll give it a more thorough listen soon. I found it hard to compare the OS and the Advents, after I had both working. The Advents just give off such a wider soundstage (the OS's do have a very surprisingly large soundstage themselves, they just aren't advents), and the advents have much more depth/weight in the deeper notes, so it nearly always sounds better to me. That being said, I do get surprised at how deep the OS's can get, from such small drivers/enclosures. Those are the things that immediately notice, A/Bing back and forth I usually prefer the advents, but I have not taken much time comparing the balances of the two, was too busy enjoying the advents to compare! For what it's worth, I choose the advents 90% of the time, only really using the OS's later at night, as to not have deep bass notes disturbing my neighbor.
  10. kehern15

    Advent BSC switch?

    Alright I created my shopping cart, should be the same as the one JKent so kindly provided, with the values adjusted for 4dB. Could someone quickly double check to make sure I made no silly mistakes? Thanks again. Slightly related, I was going to buy some banana plugs and some sort of terminal to use on the advents (ring, spade, etc) Does Mouser have any nice gold plated ones? I tried searching a few times, but couldn't find much. I was hoping to get speaker "quality" components (just meaning that they are heavier duty, gold plated, and attach via screw, not needing solder or crimping). Not sure if I just missed them or they don't have any.
  11. kehern15

    Advent BSC switch?

    Ah yes I thought I saw it somewhere! Just wasn't sure as I have read a lot of frequency graphs recently learning about speakers and headphones. If I'm reading that correctly, it's +/-5dB from 20hz to ~13khz? Pretty great for a 40+ year old speaker! I see, thanks for the advice. I think that I'd probably prefer it in the Normal position myself, I am fairly young (24) and have pretty good hearing (up to 18khz), those advent tweeters can be harsh. Hm, in your little background story about creating the BSC and not being able to distinguish them from your reference speakers, did you not find yourself listening to the advents more? Just personally curious. I probably won't be building the speaker-amp line BSC soon, but it would be very helpful for me (and others) for general reference (in the future I'll probably make one). I'll be ordering the parts from Mouser soon, to build my own. Will make a quick post here and have you/whomever check my cart to ensure I am buying the correct parts before I order them. Thanks again for creating this and all your help Pete, I am sure that many of us a very grateful!
  12. kehern15

    Advent BSC switch?

    I apologize for the late reply, I have been busy with work. Yes I received the BSC and have been listening to it the past few days, it is excellent! I'm not too good at describing sound, but I will try. Overall I found the speakers to become much more balanced with the BSC. The highs are more audible and clearer, but not ear piercing as they could have been before. For me that has been the best improvement. The bottom end seems to have gotten louder and a bit looser, but that is probably because 6dB is a bit much for me, my speakers are only 8 in from the wall, so I am getting a lot of room boundary enhancement. The mids seem more seemless now, before I could sometimes tell when a song was around the crossover point of the two drivers, but with the BSC it is more natural and effortless. I'm probably going to build the 4dB version then, seems appropriate given the speakers current placement. Has anyone measured the frequency response with the BSC and compared it to stock speakers? Would just be curious. One question Pete, where do you recommend the HF switch to be when using the BSC? I had it to extended, but normally I have it to Normal or Decreased.
  13. kehern15

    Advent BSC switch?

    Awesome, thanks. I'll post my thoughts in this thread after I give it a listen. I'm quite curious if I am going to like it, as I've grown very accustomed to the Advents stock sound. But more midrange and less tweeter harshness does seem good!
  14. kehern15

    Advent BSC switch?

    Thanks Pete, PM has been sent. Yeah, I'm having a lot of difficulty getting over the bass of those Advents. It is just very balanced, clean, and incredibly deep. It has become my new reference point, even in comparison for headphones. Hard to not love it! Thanks, I'll probably get everything off Mouser once I have tried the BSC and settled on the dB level of compensation I would like. Was just using Radioshack as I was a bit overwhelmed with the selection at Mouser, not knowing much about electronics made it a bit much. But JKent helped, thanks! I'll be sure to look at those JKent, thanks again!
  15. kehern15

    Advent BSC switch?

    A speaker level would be easier for me, yes. $50 is a bit steep for me right now (college student), but I would be curious to see the schematic, and in a few weeks when I've saved up enough, I will probably build it. Most likely after I try making the BSC, probably with the switch, as I'm using my Advents 90% of the time, and the OS's later at night as to not disturb the neighbors with the large bass presence of the Advents. Ah funny story...I liked the OS's because I very embarrassingly had my Advents wired out of phase. After wiring them correctly and listening for a few weeks, I've grown to prefer the Advents quite a lot. So I don't mind investing in them. I would like to try the loaner if possible. Shoot me a PM when you get it back, I can also better realize what dB of compensation I want. P.S. For the BSC, which version would be appropriate for me, the 2.2K or 4.7K version? My DAC output impedance is 400 Ohms, and I could not find the input impudence of my amp. The sensitivity of the input is 1.5 Vrms if that helps at all.
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