New Line Magnetic 508ia Integrated Amp

Discussion in 'Audio Hardware' started by GoldprintAudio, May 20, 2016.

  1. freesole

    freesole Forum Resident

    Location:
    Seattle, WA
    Luc, I agree, the 300B in my experience was the tube where I noticed the least difference. Being objective about it, I would say that the differences that I heard with the EML 300B XLS in place were subtle and marginal at best in the 805ia configuration. The EML 300B XLS is a great tube by all accounts so I don't doubt that it would make a world of a difference in another amp but in the 805ia, the 300B's are not as influential.
     
    taokf likes this.
  2. thomaskong

    thomaskong Forum Resident

    Location:
    Washington State
    My experience is 805 is 3 times more important than 300B in LM508.

    You do not need to put expensive 300B here.

    I would rather recommend you to try Acme 805.
     
    taokf likes this.
  3. dianos

    dianos Forum Resident

    Location:
    Scandinavia
    Whats the approx lifetime of the different tubes in the LM 508?
     
  4. Strat-Mangler

    Strat-Mangler Forum Resident

    Location:
    Toronto
    The amp doesn't matter. Each tube model differs. Some 6SN7s can last 10 000 hours. Some 300Bs like the EML 300B-XLS can last over 30 000 hours.
     
  5. taokf

    taokf Active Member

    Location:
    Serris
    Thank you all for your response.

    For the 300B is actually what I understood.

    My 300B work well but there is a defect, in places, the plate is no longer black, we see the silver color spots.

    I think take psvane 300B hifi series
    For $ 130.

    Acme 805 interests me, but it's really too expensive for me.
    I was also told that the cossor was just another version of "remixed" and sold more expensive.

    For the 805 power tubes I found the psvane was $ 90 but I still think a little more for shuguang 805 AT or psvane 805A-T (with larger lenses) for about $ 190.
    I have the impression that they are the same tubes ..... Do you have an opinion on these tubes?

    I am also interested in information on the performance of the blue fuse of synergistic research.
    Is it easy to change it?

    Thank you
    Luc
     
  6. dianos

    dianos Forum Resident

    Location:
    Scandinavia
    What about the mute function. Will it save tube life like a standby switch or still running full power muted?
     
  7. dianos

    dianos Forum Resident

    Location:
    Scandinavia
    Meet The Bastard. My new hot friend.

     
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  8. Strat-Mangler

    Strat-Mangler Forum Resident

    Location:
    Toronto
    Mute only disables the audio output. It doesn't stop the tubes from burning. There's no Standby switch or anything similar on this amp.

    What I found particular is how LM states you should wait 1/2h before turning it back on.
     
  9. taokf

    taokf Active Member

    Location:
    Serris
    Hi everybody,

    I finally ordered 1 pair of 300B psvane hifi series and 1 pair of 805A-T shuguang .... Got with bargain a .. $ 288 shipping included! Excellent price!

    I am waiting for the reception within 5/7 days to judge.

    For those who have changed the fuse .... What exactly is changing?
     
  10. dianos

    dianos Forum Resident

    Location:
    Scandinavia
    Where did you place the order?
     
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  11. taokf

    taokf Active Member

    Location:
    Serris
    Dianos, I placed the order with JOE chen liang, the contact of psvaneaudio.com website.

    it also provides the psvane 805A-T T-Collection (which is not on the site) at an excellent price.

    I do not go through the site but directly by mail:
    infopsvaneaudio@gmail.com

    Thank you to tell him that you come from me (luc.c, from France) he knows me now.

    Maybe you want to wait for the reception of my hits, I'll tell you if everything is OK.

    See you soon
    Luc
     
  12. freesole

    freesole Forum Resident

    Location:
    Seattle, WA
    Replaced the stock fuse with the synergistic research Blue fuse today. Have it playing right now in the background so no critical listening yet but looking forward to sitting down on the couch tonight and tuning out to some good music and whiskey.
     
    taokf likes this.
  13. taokf

    taokf Active Member

    Location:
    Serris
    Very interested in the results with the fuse because it is expensive
    But certainly a beautiful evening in perspective
     
  14. adamaley

    adamaley Forum Resident

    Interested in your impressions regarding the fuse.
     
    freesole likes this.
  15. freesole

    freesole Forum Resident

    Location:
    Seattle, WA
    I'll write up something tonight. The fuses are directional apparently but would I hear a major difference if they were installed the wrong way? It sounded great last night but I'll swap it around today to see if the other direction is better (ie. more detailed as per the instruction manual)
     
    adamaley likes this.
  16. freesole

    freesole Forum Resident

    Location:
    Seattle, WA
    So, I will try my best to describe what I am hearing but I will admit that it is a bit tough because I swapped my PS Audio Directstream Junior DAC/Streamer with a brand new Lumin T2 (with less than 40 hours) about a day or so before I got the SR Blue fuse. With the T2 still breaking in, I wouldn't doubt that the sound is changing a bit over the initial first few days.
    • There is more precision and focus - This is especially evident with songs like Duende. There is a slight improvement there.
    • Dynamics - Going to use the Duende song as a reference here again. The sound of the drums come out of no where and is right in your face. Maybe it's the lowered noise floor and therefore "blacker background" but there is an improved sense of dynamics and snap here.
    Again, it's hard to say if this improvement is caused by the fuse or the Lumin that is still in the process of breaking in but I think there is an improvement here since I put the fuse in. Is it a big difference? Too hard for me to say with the other changes that I have made.
     
    Last edited: Feb 13, 2019 at 12:33 AM
    adamaley likes this.

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