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Thread: What SET amplifiers have Realistic Midrange Magic AND have the Great BASS? Rock your Horns!

  1. #41
    [Industry Expert] ddk's Avatar
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    Quote Originally Posted by microstrip View Post
    Do you think these Wavac He833 v1.3 amplifiers have Realistic Midrange Magic AND the Great BASS? They are currently being sold in the german eBay - fortunately far enough from me, otherwise I could feel tempted!
    I had them on Kharma Exquisites a few years ago, midrange is very good if not pushed, bass isn't anything to get excited about. They're nonlinear when pushed beyond the first 10 watts with audible distortion as you push them harder.

    david
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  2. #42
    For me the solution was, SET amp for 150hz and upwards and solid state for below that. I use a custom made dual output passive preamp to match the gains. Outputs of the passive are also matched to amps 10k ohm and 100k ohm. I love the sound I am getting. It can play +-3db from 18hz to 20khz. I like a curve of +3db from the bass to -3db in the treble, like a slowly falling response from bass to treble. It sounds more natural and engaging than a completely flat response. I fill the 18hz to 36hz, the sub octave with a full scale tapped horn. 36hz to 150hz with dual TAD 1601b br boxes and the rest front loaded horns.
    The set amps are LM 503pa mono blocks with WE replica tubes all around. I have tried a few other amps and some people preffer them over LM but I do not know if those people have heard these monoblocks. I actually tried more expensive products and decided upon these for their sound.

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    Last edited by kodomo; 08-12-2017 at 02:06 AM.

  3. #43
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    Which other SET amps did you try, kodomo?
    Audition recordings: Zero Distortion Link; Reference Components: Zero Distortion Link; Own: Lampi GG One-day-to-get: Apogee Scintilla, or a horn (with Tenor 75 OTL ), Preamp to be fit in to suit the gain and drive the power amp. Analog: TBD

  4. #44
    Quote Originally Posted by bonzo75 View Post
    Which other SET amps did you try, kodomo?
    Do not get me wrong, what I am saying is not these amps are better. They are better sounding with my specific system. Now the other set amps I have heard;

    LM 219ia in power amp mode, supposedly should sound the same having the same topology. It doesnt, maybe it is the tube rectification or better components of 503pa

    Mastersound compact 845, this one sounds veiled and can not cope with more complex classical music. Euphonic in a way I dont like, sounds tubey in an oldschool way.

    Wavac 805 monoblocks - This one I tried to love more than I should but let me try to explain what odd thing stopped me from getting these. There was an unnatural dynamic swing. I hope I am explaining what I heard clearly. It sounds dynamic and nice, but somewhat unnatural. Unnaturalness was not timbral, but dynamic, like extra accentuation.

    I have also tried push pull but they just sounded overly muscular and unnatural after hearing the sets.

    edit: I use we replica 845, 300b, 310a from Psvane on Line Magnetics. I tried the rest with whatever stock tubes they came with.
    Last edited by kodomo; 08-12-2017 at 06:30 AM. Reason: additional information

  5. #45
    I must say the LM range look rather interesting. Probably the most kg per $ in the amplifier world!
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  6. #46
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    Quote Originally Posted by kodomo View Post
    Do not get me wrong, what I am saying is not these amps are better. They are better sounding with my specific system. Now the other set amps I have heard;

    LM 219ia in power amp mode, supposedly should sound the same having the same topology. It doesnt, maybe it is the tube rectification or better components of 503pa

    Mastersound compact 845, this one sounds veiled and can not cope with more complex classical music. Euphonic in a way I dont like, sounds tubey in an oldschool way.

    Wavac 805 monoblocks - This one I tried to love more than I should but let me try to explain what odd thing stopped me from getting these. There was an unnatural dynamic swing. I hope I am explaining what I heard clearly. It sounds dynamic and nice, but somewhat unnatural. Unnaturalness was not timbral, but dynamic, like extra accentuation.

    I have also tried push pull but they just sounded overly muscular and unnatural after hearing the sets.

    edit: I use we replica 845, 300b, 310a from Psvane on Line Magnetics. I tried the rest with whatever stock tubes they came with.
    Thanks, Kronzilla does complex classical well, and I like various EL34 amps too.
    Audition recordings: Zero Distortion Link; Reference Components: Zero Distortion Link; Own: Lampi GG One-day-to-get: Apogee Scintilla, or a horn (with Tenor 75 OTL ), Preamp to be fit in to suit the gain and drive the power amp. Analog: TBD

  7. #47
    Thank you all for some interesting suggestions in this thread. Is anyone able to comment on the Nagra 300i/p or VPA in this context?

  8. #48
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    Quote Originally Posted by bonzo75 View Post
    Thanks, Kronzilla does complex classical well, and I like various EL34 amps too.
    I would add Ayon, NAT and Aries Cerat to the list of SETs that do complex classical well. Probably the upper AN UK models do as well but the lower models not so well. The JJ322 also does it well with a sympathetic speaker (at least 93-94db and easy load).

    One of the best SET experiences I have had was with the WAVAC HE805. I am not sure about "accentuating" dynamics because, IMO, nearly all electronics blunt the true dynamic envelope compared to what I hear when I am upclose live (like the microphone in most recordings ;-) ). I guess it could be accentuated but, given the lack of realism in dynamics for most gear, I think a bit of accentuation in this regard would not be a bad thing unless it was somehow erratic or only in some frequency bands.

  9. #49
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    Quote Originally Posted by Gemini View Post
    Thank you all for some interesting suggestions in this thread. Is anyone able to comment on the Nagra 300i/p or VPA in this context?
    I was not impressed with the 300 i/p. It was lean and bright in the system I head it in (dealer's demo). Speakers were Marten something or other (can't remember now...it was forgettable sound). VPA I have heard work really well with the Verity Parsifal but it is not a SET. Still, interesting monos.

  10. #50
    Quote Originally Posted by morricab View Post
    One of the best SET experiences I have had was with the WAVAC HE805. I am not sure about "accentuating" dynamics because, IMO, nearly all electronics blunt the true dynamic envelope compared to what I hear when I am upclose live (like the microphone in most recordings ;-) ). I guess it could be accentuated but, given the lack of realism in dynamics for most gear, I think a bit of accentuation in this regard would not be a bad thing unless it was somehow erratic or only in some frequency bands.
    Yes, the nature of recording and playback dynamic range is well below our hearing. As someone who had a studio too I know it. I also thing the micro and macro dynamics are one of the key things for transfer of emotion. That is why I have built my system 109db efficient!

    The accents I have tried to tell about was unnatural and out of place, making the sounds become overly bodied and loose the refinement with the power that came along with it. Like hearing the instruments with the air around them, then forte parts loosing the air, sounding strong but suddenly like a less seasoned player pushing and loosing the refinement. It maybe more accentuation in lower mids opposed to the rest of the band. Oh how I hate trying to explain these things Anyway, this can be equipment mismatch as well. Wavac is a serious company with incredible amps!

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