[Review] Wilson Audio System 8 with Krell CAST Review

Discussion in 'Hi-Fi and General Audio' started by amir, Jan 20, 2008.

  1. amir

    amir

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    Wilson Audio System 8 with Krell CAST Review

    This is my Review about sound of wilson with krell
    Before Reading this review i should to say i like sound of krell and wilson. i like their sound signature and if your taste differ with me i don't recommend you to read my review.
    Demo Started at 11:10 am in Mr.Rahmani Showroom and Finished at 8 pm. Nine hour Continous Listening Session helped me to write about sound of system. I was familiar with sound of Wilson loudspeakers and Krell amplifiers like Sophia, System 7, MAXX, FPB 750MCX , …
    I know good review need long listening sessions and ideal condition but I spend all of my experience to write carefully about what I heard. I think system was installed over it’s 80% real performance and if acoustic was not ideal but there was no critical problem for listening.
    Widths of room was more than 6m and distance between speakers was near 2.5m. Listener ear distance to each speaker was 3m and speakers were 1m far from back wall. Length of room was 5m.
    Wilson System 8 needed larger and better acoustic space to expand it’s soundstage and fill the room with breathing strings. Wilson gives you an integrated sound in near field and there is no need to place 3way speakers over 3m from your ear for accessing integrated sound. It’s near you and friend of your ears.
    We know sound has elements that audiophiles and reviewers speak about them like Transparency, Immediately, Coherence, Texture and … Reviewers user these terms to describe sound of system and each term refer to one element of sound. I think when I listen to music through an audio system, I forget the system and have one special sense during listening that it’s result of system ability to satisfy my hearing sense. System ability in joining listener to music and satisfying him means system musicality. I want to speak about this unique sense at first then describe elements of sound. Some reviewers write more about elements and less about this sense but I think this sense is so important in long listening session and I listen to music for enjoying not analyzing the sound. If all elements of sound be in high level of fidelity but the sound dose not satisfy me I prefer less fidelity with more musicality. Satisfying this unique sense is result of compatibility of sound with our hearing sense. System designer knowledge and experience about human hearing is most important factor in designing components for reaching maximum musicality. Our ear is more sensitive to some parameters like midrange texture and less sensitive to some like frequency extension. This sensitivity vary with type of music but this variation scale is not very large and our hearing has a taste that tell us about it’s priority of sound parameters.
    When system played over 8 hours I had no sense of fatigue and I listened disc after disc with greet sense of relaxation. Ultra natural fluency of sound gave me sense of “freedom”. It’s not easy but I try tell you about this sense with words. I listened to “Tourghe” in “night, Silence, desert”(Shajarian music album) and music lift me to an special space that I forget life. Sense of deliverance, exhilaration was result of joining me to beauty of music. I never forget moments I spend with Wilson though it was short. Freedom is word I select to tell you system left me alone with music and music showed me all of it’s beauty and charm. Wilson never destroyed or modified music delicateness in relation of me and music.
    Now I try to write about sound by short expressions to give you an overall view. Upstream was neutral and pure with ultra natural fluency. Liquidity with Great sense of ease and power was evident in upstream sound and Wilson rendered this sound with greet sense of analogy, openness and silky smooth texture.
    One of parameters that was different in this system was sound fluency, I sensed no stress and no force in sound and it was very quiet and safe to my ears. Sound helped me to imagine fluency of stream in my mind. I wanted to analyse and review the sound but system lifted me to hearing music. Passion of music was high and I listened to many records. Listening to “Rain of Love” (Naser Chashm Azar) , the sound in Track 5 (Passion of Love) was a new experience to me because Wilson rendered this track with passion. Midrange texture was good and ability of system in micro scale helped listener to enjoy more in listening sessions. System rendered music with soul , delicateness and naturalness. Wilson was a winner in capturing music magic and krell supported it with it’s neutrality and natural fluency. Do I need more? NO.
    You may want to know more detail about sound of Krell/Wilson and I recommend you to listen to Wilson before reading my review. I believe reviews are poor in describing our sense about sound though many of us enjoy reading reviews.
    Digital Source was Krell EVO-505 and I it had not digital signature of most CD players and was more close to analog. Evo 505 rendered both low and high quality records very smooth and easy on my ear. Sound was open, extended and sweet with no sense of forwardness or compress. Timbre of strings never changed in higher frequency and there was no sense of dryness or hardness in skin of sound at higher frequency. Sound was more on analog side and had scale in mid/high frequency as like as low frequency with sense of air around strings. Like all good digital players EVO 505 had enough detail and resolution in both CD and SACD mode but these details were not in face of listener. There was no sense of force and stress in sound of krell EVO 505, it was liquid, natural and lifelike with no drawing listener attention to him. Good AC power is so important for digital playback and Shunyata helped EVO 505 to be more kind and friendly in rendering music. I think in high resolution playback AC Power is a critical element and it has so effect on texture and smoothness of sound. Long listening sessions shows importance of good AC Power for audio systems. Good AC power help digital to be more close to analog in rendering music.
    Krell upstream was not on warm side and it was very neutral and revealing but it don’t mean krell have hardness in micro or remove soul of music, no it was neutral and natural in both micro and macro but
    more on macro in comparison with other solidstate designs. Krell never shifted elegance texture of midrange to thickness though it had not richness and euphony of single ended tubes. It was more on truth rather than beauty. Krell was not mechanical in micro and macro dynamics. It was neutral with greet sense of timing, control and low frequency power. Krell CAST System had no electronic character and rendered music with ultra sense of ease and natural fluency. CAST helped the sound to be more free from system . Transparency, Palpability and immediately were acceptable but for reaching maximum potential of system we needed shorter and better cabling. I think one of most important factor in listening enjoyment is sense of music closeness to us that we describe it with Palpability and immediately. Tubes have simple and shorter signal path that help them to render music with better sense of Palpability and immediately but high power solidstates with more amplification stage and more complex circuit need more attention in system matching in this area. I think short cables help better sense of Palpability and immediately in powerful solidstate designs. when one designer try to give better sound in macro we should be careful in setup and matching it for getting best micro. I like sense of reality in sound and I never liked exaggeration in euphony and warmness. I like solidity, bone and dynamic in macro scale with natural and delicate texture in micro with sense of vibrancy and reality. Poor solidstate designs destroy micro for macro but good solidstate designs in matched setups protect music in low level information and harmonic richness with full control on macro. I like krell but we should be careful in matching it with other components for balancing sound parameters. Bad records never sounded fatigue and forward and just had not soul and elegance of good records. Good records rendered delicate with lifelike vibrancy. If you need more bloom and warmness you can setup krell with a warmer preamplifier like VTL but I prefer krell in CAST mode with entire krell upstream because the CAST system have superb neutrality, awesome timing, dead silent background, ultra sense of dynamic and control with just very little in reduction of Palpability and immediately in sound. I like CAST more in rendering complex music in loud, Very stable with great sense of ease with no loss of openness, timing and control. Cables restricted ability of system in some area like transparency, air and depth of soundstage. I think CAST Interconnects should be less than 2m and speaker cables in this setup should be less that 1.5m.

    Sound of Wilson Audio Watt/Puppy System 8 :
    Analog, Textured, kind and honest with large scale soundstage.
    Wilson had big and free floaty soundstage and this large space sound creation make music more listenable. More sense of live music is the result of Wilson large soundstaging. Wilson filled room with lifelike presence of strings and projected strings in very wide sweet spot in room. Sense of breathing of strings in room was very delightful. Each string had his place in soundstage with no sense of coming from two loudspeakers. Wilson Speed, punch, macro dynamic and sharpness in macro scale with sensual and emotional Sound in micro scale helped me to listen to wide range of music. Persian classic music and rock music both rendered lifelike and listenable. Wilson never lost excitement of rock music with softening or reducing punch and dynamic of strings. Dynamic and energetic strings rendered live and energetic and sensual vocal rendered emotional and sweet. Some loudspeakers have more dynamic in macro but less musicality in micro and some have less dynamic in macro but more musicality in micro, I think Wilson system 8 balanced this parameter to my taste and rendered music very good at both micro and macro scale. I think the truth in krell CAST matched with beauty in Wilson. In my idea matching is the most important factor in Hi-Fi. There was no sense of exaggeration in sound of Wilson in
    every respect and Wilson was quite suitable in long listening sessions. Wilson system 8 is a 3way dynamic driver design but It’s hard for professional listener to guess Wilson crossover frequency because the sound of each driver is fully compatible and coherent with sound of other drivers and there is no sense of discontinuous in sound of Wilson at crossover frequency regions. I like continuous ambience field of single driver loudspeakers and this parameter is so important in designing 3way dynamic drivers. Wilson was the most coherent loudspeaker I have ever heard in 3way dynamic driver designs. Three parameters are important in coherency of sound in 3way dynamic drivers design, first is the evenness of soundstage shape and dimension in drivers, second is evenness of tonality and timbre of strings in drivers and third is smoothness of sound in transition from crossover frequency region. Listener should not sense sound come from 3 different source and soundstage should be coherent and pinpoint. Wilson is as coherent as my ear expect from a loudspeaker. Coherency plus large sweet spot have a key role in enjoying music in room. Go near then go far or move in right or left, you still hear same strings with no change in place or tonality and this is result of large sweet spot that let you enjoy more. Wilson have good ability in disappearing and let music come to your room without sense of projecting from two loudspeakers. Solidity, purity and openness of Wilson system 8 tweeter sound was very evident and strings at high frequency even at loud rendered very easy , stable in soundstage and natural. Separation of strings in complex music was as good as my ear expected from a 3way loudspeaker and sense of breathing each string in it’s location was so enjoyable to me. Sound was analog, natural and textured with no thing that force listener to turn down the volume or left the ribbon chair. Passion of music was on high and sense of freedom was the ultimate result of listening to music with Wilson krell CAST. Music was deeply connected to me and I had no sense of fatigue after 8 hours. I think Mr. Dave Wilson design approach is based more on listening experience and less on electronics measurements (more subjective) and if no thing is ideal we can be in a good location from ideal. Balancing sound parameters to our hearing sensitivities is the art of a loudspeaker designer. Wilson is not perfect as no component is perfect but in my taste Wilson system 8 is the most musical 3way dynamic driver loudspeaker I have ever heard. Hifi parameters were as good as my ears expected and musical parameters like midrange texture were near ideal and overall sense of hearing music with Wilson system 8/ krell CAST fully satisfied me. Wilson in comparison with my loudspeaker (Dynaudio) in midrange reminded me The van den hul “The Third” speaker cable (Full Carbon) in comparison with other speaker cables. I listen more to vocals like shajarian albums and Wilson ability in rendering midrange texture of vocal strings was high. Wilson soundstage was a little rounded and bigger than others like dynaudio and in bass area it’s less extended, fast and transparent than it’s bigger brother Wilson MAXX. Wilson have zero box effect and it’s soundstage is so stable with great silence. Wilson dynamic range was good and background materials never blured by foreground material in low level volumes. Sound in low level volumes had dynamic and vibrancy with so little sense of decreasing in harmonic richness. At high level volumes Wilson managed dynamic strings very good and listenable with no sense of stress. I think crossover circuit was superior because in high level sound I detect no decrease in sense of sound solidity. About restriction of this system I should say system could have alittle more Palpability and immediately with greater sense of presence and bass extension but Wilson system 8 is not a cost no object product. I have one recommendation to Mr. Dave Wilson and it’s giving external crossover option for their loudspeakers. I think Using crossover in low energy domain (Analog crossover between pre and power or Digital crossover on DSP) and using monoblocks with short speaker cable will increase sense of Palpability and immediately in sound.
    In the final i enjoyed music but i believe this sound can be improved more in micro scale (Transparency, Presence and immediately).
    (About Krell i highly recommend to listenning it in CAST mode in all Krell systems with very short (1m) good speaker cable)
     
    Last edited by a moderator: Jan 25, 2008
    amir, Jan 20, 2008
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  2. amir

    rollo

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    Nice read thanks for taking the time.


    rollo
     
    rollo, Jan 23, 2008
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