1. Time for some upgrades in server hardware and software to enhance security and take AK to the next level. Please contribute what you can to sales@audiokarma.org at PayPal.com - Thanks from the AK Team
    Dismiss Notice

Chorus II's - Thank you and Amp direction

Discussion in 'The Klipsch Korner' started by motopatina, Nov 19, 2018.

  1. motopatina

    motopatina AK Subscriber Subscriber

    Messages:
    20
    Location:
    Los Angeles
    First off, a sincere thanks to all of you. I've been reading the forum and have learned a lot (I hope). Over the weekend I picked up a pair of Chorus II's. They're in need of much love, especially in the cosmetic department. Priced fairly, original and I think they sound great! I'm excited to work on these with the tips and improvements discussed here (special shout-out to Moray James!). It should be a fun project. My budget system includes a low-power Musical Paradise MP-301k Tube Amp with Tung Sol EL-34's running through a Peachtree Audio Dac-iTx (macbook to stream Spotify). I enjoy this combo (from the 2 days I've spent with it), but recognize the speakers might benefit from more power. I have a chance to sell the MP-301k and get a Peachtree Audio 220se for a very decent price. Seems like a worthy upgrade, gaining a preamp and more power, just losing the tube amplification.. Appreciate the guidance and happy to have this forum. Thanks everybody.
     

     

    Please register to disable this ad.

  2. moray james

    moray james Super Member

    Messages:
    3,091
    Location:
    Calgary on the Bow
    if you want to run small tube amps then a Cornwall or a CW ll is what you want and not a Chorus. You could probably sell or trade your Chorus ll woofers and build up a CW cabinet and use the Chorus mid and tweeter in that as a combo , that would be nice and it would be easy to run on small amps with the bonus of the better horn at the mid.
     
  3. motopatina

    motopatina AK Subscriber Subscriber

    Messages:
    20
    Location:
    Los Angeles
    Thanks Moray! I appreciate your response. I’m not married to the idea of small tube amps - but I like the option of making some improved CW’s. Perhaps I’ll try a high power amp with the Chorus first and see if I like the results.
     
  4. Jirachi

    Jirachi Member

    Messages:
    99
    Why?
     
    chip18sw likes this.
  5. moray james

    moray james Super Member

    Messages:
    3,091
    Location:
    Calgary on the Bow
    Chorus is a smaller cabinet volume and the K48 15 inch woofer it uses is a pro woofer. The Chorus combination has the same low end response as a CW or CW ll but it is less efficient and requires more power than a CW, but it can take way more power than the K33 in a CW does and it can play much louder than a k33. The K33 in the larger CW cabinet is a more efficient system and so you can use much smaller amps with it.
     
    Last edited: Nov 20, 2018
  6. fredgarvin

    fredgarvin AK Subscriber Subscriber

    Messages:
    1,151
    Going to the chip amp will improve the bass response somewhat but you might miss the what the tubes do with the horns. My Quartets are 97db and sound great with the Musical Paradise. When I hook them to my 200 watt Coda amp the bass is better, but the dimensional tube sound wins out for me. You might try the Tung Sol 7581a, you'll get better bass and top end than with the EL84.
     
    silversport likes this.

     

    Please register to disable this ad.

  7. MATT0404

    MATT0404 AK Subscriber Subscriber

    Messages:
    610
    Location:
    NW PA
    My Chorus II's sound great on everything I've powered them with. Stand outs would be:
    • Scott 222 - Lively and dynamic, good bass with NOS Mullard el84's, excellent imaging and separation, smooth midrange and top end but bordering on bright
    • Scott LK-72 - Lacking slightly in dynamics compared to the 222, great bass with Realistic Lifetime 7591's, same excellent imaging and separation, smoother midrange and top end
    • Audire Otez - Lively and dynamic, great bass that is well controlled and more impactful, unreal soundstage width, depth and separation (seriously, it's that good), bright, sometimes shrill midrange and top end
    At my normal listening levels, and to my ears, tubes match perfectly with the Chorus II's. I prefer the warm, smooth midrange and top end and don't mind a little bass bloat as a trade off. Horns (think trumpets, not Klipsch) are nearly unlistenable with SS amps to me. Besides, I need my big power amps elsewhere. :D
     
  8. AlTinkster92

    AlTinkster92 AK Subscriber Subscriber

    Messages:
    3,290
    Location:
    NC
    I run a set of Chorus II's with a little Maggie 8601 4.5 watts total, sounds just fine IMO......
     
    ziftron3 and charne@sprin like this.
  9. motopatina

    motopatina AK Subscriber Subscriber

    Messages:
    20
    Location:
    Los Angeles
    Thank you - I will investigate!!
     
  10. motopatina

    motopatina AK Subscriber Subscriber

    Messages:
    20
    Location:
    Los Angeles
    Thank you! I noticed another recent thread for tubes with Klipsch and the Scott and Fisher amps seemed to be very well liked!
     
  11. motopatina

    motopatina AK Subscriber Subscriber

    Messages:
    20
    Location:
    Los Angeles
    Thanks again for your reply. Do you have the original diaphragms for the tweets and mods in your Chorus II’s?
     

     

    Please register to disable this ad.

  12. MATT0404

    MATT0404 AK Subscriber Subscriber

    Messages:
    610
    Location:
    NW PA
    No problem! I'm using the Crites Ti tweeter diaphragms and I've recapped the xo's with Sonicaps.
     
  13. motopatina

    motopatina AK Subscriber Subscriber

    Messages:
    20
    Location:
    Los Angeles
    Got it! Thanks! I will get the Ti tweets for sure. Will figure out if I should recap or go full bore with a Crites crossover. I’ll keep you posted!
     
  14. MATT0404

    MATT0404 AK Subscriber Subscriber

    Messages:
    610
    Location:
    NW PA
    Best of luck! The Ti diaphragms make a noticeable difference.
     
  15. tomlinmgt

    tomlinmgt Addicted Member

    Messages:
    9,963
    Location:
    Arlington, TX
    Crites modified Chorus II’s here with the impressive little Nuprime IDA-8.

    I’ve been DEEP down the hifi rabbit hole and once had a dedicated listening room where attaining optimum acoustics was a fundamental priority over all else. Once I felt I had achieved that (through the proper implementation of a variety of acoustic treatment devices and many, many room measurements to get a favorable room decay and nicely balanced spectral curve) I went straight for the bucket list vintage and new-vintage “big dogs” as I was a junkie for life like dynamics, scale and spooky realistic resolution/dimensionality. I tried a lot of impressive combinations over the course of my journey, focusing primarily on large speakers (Infinity QLS-1, JBL L250, Altec 19, Magnepan MG-IIIa, Acoustat Spectra 22 as well as some DIY open baffle designs, all supported with a distributed bass rig w/ room correction filtering to overcome any compromises in LF reproduction suffered as a result of a speaker placement that achieved optimum sound stage resolution...always seemed to be a give and take with those two things), big SS amps (Aragon, Krell, Threshold, Soundcraftsmen, Hafler, Emotiva), SET and high powered tube amps, pure class A SS amps, tube, hybrid and SS preamps, and dozens of different DAC’s that offered the best bang for the buck in the $1-2K range. With all this at my immediate disposal to mix and match, I managed to assemble several jaw dropping systems that left audiophiles and non-audiophiles astonished. It was a hell of a ride that lasted about four years, but I decided I wanted to go back to playing music with a gigging band (I’m a drummer) and forfeited my dedicated listening room over to that pursuit.

    However, I didn’t want to totally forfeit my hifi, so I set out to assemble the simplest and most capable rig I could (using the systems I had assembled in the dedicated listening space as my yardstick), within a reasonable budget and that fit within the speaker placement constraints dictated by my living room (large and with a favorable acoustic profile) where this rig would be assembled.

    I didn’t want a stack of separates, so I looked to the latest and greatest amp/preamp/DAC units that had hit the hifi scene (this was a few years ago) with a focus on a unit that had a great preamp section and main outputs so I could have a few subwoofers and also try a host of separate amps (just to have a little fun now and then) and settled on the IDA-8.

    One of my favorite combinations I cooked up in the dedicated space came from Altec 19’s with either a Pass F5 clone (pure class A) or Tube Audio Design TAD-60 with KT-88’s switched to ultra linear or EL34’s switched to single ended (class A), an Accurus RL11 SS pre that had been extensively modified and a Schiit Gungnir DAC being fed by a Windows laptop that had been tweaked for hifi Tidal streaming. I felt the instant and effortless dynamics and clarity offered by horns and the scale and weight offered by a large woofer is what I wanted in the living room since I’d also be sending all audio from the TV through the audio rig for movies and tons of live musical performances via YouTube and other streamed video content. The Altec 19’s were simply too big for the area where the speakers had to go, and I would be limited to placing the speakers no more than a foot from the front wall. Klipsch was the obvious solution, but Cornwall and Khorn would be to big so I considered the bigger KLF models, the bigger Epic models, Forte II, Chorus II and Cornscala. A mint pair of Chorus II’s were the first on that list to become available so I pulled the trigger. Initial listening supported my doubts that they’d be a capable and convincing substitute for Altec 19’s in stock trim, so I immediately swapped out the HF diaphragms and crossover network for units from Crites. I then added a few 12” subs (with digital room correction filtering) into the mix and got exactly what I set out to achieve. One my audiophile friends (who owns only modern, big money hifi...Spendor, REL, Naim, etc) spent a Sunday afternoon listening to the rig and said it reminded him of the Altec 19 based rig in every way (for which he had very high praise). Now, I was using the Pass F5 clone for amplification for most of that session, but did switch back to the IDA-8’a on board chip amp so he could hear the difference and he noted a slight degradation of sound stage resolution/dimensionality and a top end that got a touch shrill at times...but was quick to add that the on board amp was well beyond adequate for casual listening and I agreed completely.

    I've also tried a pair of Golden Tube Audio 300B SET monoblocks and found that to be a particularly "lush" listen. Very smooth, very easy...and got loud enough to drown out conversation and still maintain total clarity. Can't say what it did to LF because I kept the subs on. Additionally, I once tried the TAD-60 with KT-88's and that was very, very nice as well. I'll be revisiting that amp in that rig in the not too distant future.

    I think the Chorus II’s are very impressive speakers and can offer exceptional levels of performance when tweaked a little and matched with suitable upstream electronics. And with these items addressed appropriately, find them perfectly capable of playing in the same league as speakers that get much more attention and praise.

    Oh, and as always, a good room helps considerably in this regard.

    -Michael

    Here are some pics of the dedicated listening space for reference...


    39894522-F1C6-4E32-99CA-8CDAEA12AD09.jpeg .. 1505DF46-B2CE-4AEA-8045-99A44024E112.jpeg D4EA53E0-A8E9-493E-8465-1EDA082C8A2A.jpeg FE3A0AE3-A493-47B4-8730-A803BCC79B93.jpeg
     
    Last edited: Nov 23, 2018
  16. Verde

    Verde AK Subscriber Subscriber

    Messages:
    18
    tomlinmgt, You really did dig a deep rabbit hole!
    Did you ever try the big epic's?
     

     

    Please register to disable this ad.

  17. thevinoman

    thevinoman Nothin' but the Blues... Subscriber

    Messages:
    418
    Location:
    NW Indiana
    That tubes pair perfectly with all Klipsch is, in my opinion, not especially true, particularly with Chorus II. I have owned two pair of Chorus II, and in my experience they performed much better with solid state amps and at higher volumes. I really don't think they begin to shine until they are pushed with higher power and at higher volume.
     
    moray james likes this.
  18. motopatina

    motopatina AK Subscriber Subscriber

    Messages:
    20
    Location:
    Los Angeles
    Thank you. That seems to be the census! I was lucky enough to acquire a Carver PM-600. I will update once I get a chance to put it in play.
     
  19. absolve2525

    absolve2525 Super Member

    Messages:
    2,104
    I think that will be a great match! Looking forward to an update.
     
  20. tomlinmgt

    tomlinmgt Addicted Member

    Messages:
    9,963
    Location:
    Arlington, TX
    Nope...never even got the opportunity to hear a pair.
     

Share This Page