AliExpress / eBay JL Hood 1969 Class A Amp

Discussion in 'Power Amps' started by purr1n, Apr 25, 2017.

  1. Philipp F.

    Philipp F. Rando

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    Hey guys,

    I'm somewhat inexperienced and planing to upgrade my desk audio setup (DAC, headphone amp and stereo amp). I will be going with Schiit Modi 3, Magni 3, SYS (switching between Modi 3 and Phono) and a stereo amplifier for some small desk speakers that I will also look into DIYing. I was looking for a low cost amp that will fit in nicely with the Schiit stack, it doesn't have to be very powerful as I mainly use it for studying and casual music enjoyment. I stumbled across this amp and I think it might fit the bill, I wanted something simple, chunky and analog.

    Now, I've found 2 different variants on Aliexpress and Taobao that seem to have different PCB's and cases:

    The usual one with logo on the case and rectifier at the back (ignore the 2018 1969 version).

    And an "upgraded version" without a logo, slightly different case and rectifiers at the front.

    What do you think? Should I get one, if yes what do you think about the two variants?

    Also, will it be fine if I hook it up to the rear preamp output of the Magni 3?

    PS: Google site translation and image translation gets some useful information out of the Chinese texts.
     
  2. ergopower

    ergopower Acquaintance

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    It seems extraordinary you would pass up the one with 'true-class gallbladder sound quality'

    Just so this reply isn't entirely noise - Sys is passive, so needs line level input. Phono output is normally much lower and needs a phono pre-amp to boost signal to line level, or do you have one of those turntables with built-in phono pre-amp (Audio Technica, for example)
     
  3. purr1n

    purr1n Finding his inner redneck

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    Could still use Sys, but feed from Mani phonostage (or any other) for TT.
     
  4. Philipp F.

    Philipp F. Rando

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    Sorry, should have clarified that phono goes to my Azur 640P preamp and the output of that goes into the SYS.

    "true-class gallbladder sound quality"?

    EDIT: Oh haha, I just noticed the translation. Imagine that as a quote in a hifi magazine advert...
     
    Last edited: Oct 10, 2018
  5. Decomo

    Decomo Almost "Made"

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    Here is my humble opinion. I had both units and I could not tell much difference between the two in terms of sound quality. However, improved version (as they claimed) generate much less heat when I touch the chassis compare with original. I opened the top plate and touched the black cylinder cover that protects torroidal transformer and it is very hot. Somehow it manages heat more efficiently.

    In terms of power, I drove my mini floorstander (90db sensitivity) with it and listen in near field (3 foot distance) and I could listen loud at 11 o'clock volume knob. I do not think that I can crank the volume more than 1 o'clock position and it becomes way too loud and do not recommend because it starts sounding grainy after that.

    Hope it helps.
     
    Philipp F. likes this.
  6. Philipp F.

    Philipp F. Rando

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    Thank you very much! This is exactly the information I am looking for. Is there anything else that might help me to decide? components, enclosure, etc.? I think I prefer the new one without the logo, but on the photos the finish of the original looks better, the top cover of the new one looks kinda weird.
     
  7. spwath

    spwath Pubeless Playboy

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    Pretty sure the enclosure is exactly the same between the two, I think its just the photos that are different.
     

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