Documenting: My SDA-1c upgrades from start to finish

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  • msg
    msg Posts: 10,650
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    Jstas wrote: »
    Air compressors will spray moisture and lubricating oil. Not recommended for electronics. At least not without a de-ionizing dryer installed in-line. ESD standards dictate those for a minimum. You'll also need a grounded air line as compressed air can build up a static charge. There's a reason that you don't see electronics repair techs using air compressors.
    John, always a wealth of information, but on this I must respectfully disagree, citing personal experience over years of the practice - I've used plain old air compressors for years to air dust all kinds of computing and electonics gear. None of it suffered damage, and all continued to serve long after manufacturer "end of life".

    Maybe it's the type of compressor. I think I read once that pump vs. piston compressors, and that on or the other may inject oil into the air path. I've definitely read about this in cases of botched vehicle paint work.

    I have seen moisture, as well, after extended use, typically, which was when I began using inline driers for these cleanup jobs.
    I disabled signatures.
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  • Jstas
    Jstas Posts: 15,018
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    Honestly, it's easily preventable.

    If the dust got distributed through the house via the duct systems, some plastic cling wrap and magnetic vent covers would have worked wonders.

    They are essentially just sheets of magnetic paper that you would use to print stuff on to make, like, fridge magnets or a magnetic sign for a car/truck.

    They are all over Amazon.

    https://a.co/d/3Aryi3M

    I've used them with great success when I had the floors sanded. I covered the vents in the kitchen and bathroom with cling wrap and then used the magnetic covers to hold the cling wrap in place. Clean up was a breeze and no dust on anything in the other rooms that weren't being sanded.

    However, if you have dust all over your house via the ductwork then, it'd be prudent before you start trying to clean everything else to have a ductwork cleaning company clean your ductwork. Especially if there is mold in the particulates that have settled everywhere.
    Expert Moron Extraordinaire

    You're just jealous 'cause the voices don't talk to you!
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  • VR3
    VR3 Posts: 29,742
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    Contractors bid to work in a designated area. In an occupied home you have a responsibility to keep as much dust and debris out of the non work area. This is standard practice. To argue otherwise is bizarre.
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Gardenstater
    Gardenstater Posts: 4,932
    edited January 2025
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    And they don't know that concrete dust travels when operating saws and jackhammers and grinding walls? They can't help a homeowner out by informing them that there could be a problem and a solution needs to be arrived at?

    Concrete dust doesn't travel as much as drywall mud sanding dust but I shudder to think what would happen if drywallers didn't drape off the work room. I know from personal experience that the stuff goes everywhere being lightweight flour like dust.

    Seems to me that the boss is not claiming that his rookie? employee didn't make a mistake.
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
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  • plastic_avatar
    plastic_avatar Posts: 747
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    "From your original post, I thought maybe the contractors had barrier up, and then it failed at some point while they were working."

    The quickest explanation is:

    The area was *supposed* to be sealed off and the air diverted outside. It looked like it was going to happen. They botched it, didn't finish sealing off a few places, and diverted air into the wrong area. The boss should've overseen that part. I caught it too late once I got back in.

    In addition to making sure everything is done right from now on, I want to be sure I can come up with a good cleaning plan that a) I can do for the items I don't want them to touch and b) is reasonable for them to do to get the rest cleaned.

    Yadda, yadda, yadda.

    After the fact, I sealed off vents upstairs where ductwork might pick up dust from further work and put electrostatic filters in the vents I left open.

    And yes, my 'playing' albums and Luxman PD-272 and basic workhorse Ariston Q Deck are in that room =[

    And this, and that, and the other things.

    The audio equipment I had slated for giveaway to needy stereophiles was exposed (EQs, turntables, receivers). I'm going to tell recipients that part of their learning journey is cleaning the stuff I give them [laughs].

    Luckily, the expensive albums I've got slated for sale to help make it through searching for a new job this year are in the least dusty area of the 1st floor. If I had those in the other room, I'd have to choose violence.
    The Thrifty Setups in Mah House Big thrifty stereo in the basement w/ my custom SDA-1C (built with help from kind forum members) * Beautiful 1966 MCM GE console upgraded w/ Bluetooth, Dual turntable, and Paradigm speakers in family room * Swanky 1980 Realistic system and great TEAC eq with dancing colored lights in the living room * custom 5B on a system for my Dad * Ye Olde college stereo in the garage
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  • joebass3
    joebass3 Posts: 311
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    I have a room full of vintage stereo equipment and most of the units had about 50 years worth of crud inside when I purchased them. My approach to cleaning was to use a good quality paint brush in one hand to loosen the dust/dirt, while at the same time holding a shop vac with the other hand "very close" to the area. Make sure to install a good quality bag in the vac, rated for drywall dust. I'd rather extract the dust with a vac than potentially blowing it deeper in the unit with compressed air. I will admit that I have on occasion used the compressed air cans (along with the shop vac) to gently blow out areas that I couldn't get to with the paint brush.
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  • F1nut
    F1nut Posts: 52,407
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    Amateurs...the dishwasher is best.
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  • joebass3
    joebass3 Posts: 311
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    Another option...

    https://youtu.be/LBysew5VYyw?feature=shared
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  • skipshot12
    skipshot12 Posts: 2,155
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    Nope
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  • Striker2237
    Striker2237 Posts: 128
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    That sucks, I'm doing a bathroom at my house and since it's so cold I'm cutting the marble in the garage. It's driving me insane since the dust is settling on all the cars and I can't wash them even with heated water in -6

    I can't imagine that happening indoors.....
    2 channel: MXN10, Anthem MRX740, Anthem MCA5, SDA1c recap/RDO, JL Fathom F112V2, Tributaries series 8A, Tara labs RSC

    Theater: Above plus Paradigm reference studio 100, Polk FX300i

    Projects: SRS1.2TL, SRS 2, M5Jr+

    Party/1st floor: iPad, Marantz SR5005, Paradigm reference S100v2, monster bulk cable

    B&O H9 Gen3
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  • plastic_avatar
    plastic_avatar Posts: 747
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    @Striker2237 [nods sadly]

    AUGH. That's rough. Rock dust ain't no joke on car paint (says I, after a lot of experience with gravel...).

    I'm conjuring an action plan for the different groups of 'things' in the room that need cleaned (based on the suggestions here and from other friends). It may involve a fair amount of 'burning it to the ground', but I think I can salvage the most expensive things.
    The Thrifty Setups in Mah House Big thrifty stereo in the basement w/ my custom SDA-1C (built with help from kind forum members) * Beautiful 1966 MCM GE console upgraded w/ Bluetooth, Dual turntable, and Paradigm speakers in family room * Swanky 1980 Realistic system and great TEAC eq with dancing colored lights in the living room * custom 5B on a system for my Dad * Ye Olde college stereo in the garage
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  • skipshot12
    skipshot12 Posts: 2,155
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    That’s good to hear.
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  • Striker2237
    Striker2237 Posts: 128
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    plastic_avatar wrote: »
    @Striker2237 [nods sadly]

    AUGH. That's rough. Rock dust ain't no joke on car paint (says I, after a lot of experience with gravel...).

    I'm conjuring an action plan for the different groups of 'things' in the room that need cleaned (based on the suggestions here and from other friends). It may involve a fair amount of 'burning it to the ground', but I think I can salvage the most expensive things.

    I can't imagine dealing with it inside, my indoors cars are all ceramic coated/paint corrected so it will just wash off.

    In your case the printers alone are a nightmare.....let us know how the process goes. I was really enjoying your thread since I'm beginning my mod journey on my 1Cs
    2 channel: MXN10, Anthem MRX740, Anthem MCA5, SDA1c recap/RDO, JL Fathom F112V2, Tributaries series 8A, Tara labs RSC

    Theater: Above plus Paradigm reference studio 100, Polk FX300i

    Projects: SRS1.2TL, SRS 2, M5Jr+

    Party/1st floor: iPad, Marantz SR5005, Paradigm reference S100v2, monster bulk cable

    B&O H9 Gen3
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  • BlueBirdMusic
    BlueBirdMusic Posts: 3,131
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    Jstas wrote: »
    Air compressors will spray moisture and lubricating oil. Not recommended for electronics. At least not without a de-ionizing dryer installed in-line. ESD standards dictate those for a minimum. You'll also need a grounded air line as compressed air can build up a static charge. There's a reason that you don't see electronics repair techs using air compressors.

    Those reasons are why "canned air" exists. It's dry, static free and non-conductive, made specifically for electronics.

    https://www.officesupply.com/technology/computer-accessories/cleaning-maintenance/air-dusters/cleaning-duster/p788559.html?ref=pla&scid=scbplp788559&sc_intid=788559&msclkid=c3ab209179a1166b7280471ebb74f062

    Using a leaf blower is a sure fire way to damage something. Unless you have a significant way to create enough displacement, kicking up a cloud of dust just to evacuate it with a simple air transfer is harder than you think and there will still be particles that are light enough to get kicked up by the massive amount of air a leaf blower will displace quickly but too heavy to remain suspended in air long enough for an evacuation system or air scrubber to be able to extract. In other words, it won't work.

    Your best bet is to invest in an ESD Anti-Static Vacuum Cleaner meant for cleaning electronics.

    https://www.northerntool.com/products/metrovac-datavac-esd-safe-anti-static-pro-series-vacuum-blower-120-volts-4-5-amps-70-cfm-model-117-117513-mdv-1esd-104687?srsltid=AfmBOoo6APxF1ZYPPgsSTiZXg3DMWhhidZtz30If8b7EwF_iZU1vW7byjG8&gQT=1

    This is your best bet because not only will it prevent the vacuum itself from frying sensitive electronics with the static fields it generates but masonry dust can and will build up a static charge in the vacuum line and an ESD vacuum will have a grounded lead to dissipate that charge through the grounding system instead of your sensitive electronics. The vacuum will remove all of the dust without introducing static electricity or moisture.

    If you're doing all these "mods" to electronics, you should have one of those anyway.


    Always something new to learn!! I did not know that type of vacuum cleaner existed. The price is reasonable. Thanks!


    Lots of good stuff going on this thread with the hotdogs, concrete dust, etc.

    "Sometimes you have to look to the past to understand where you are going in the future"
    Harry / Marietta GA
    m9iutt1ly1yd.png
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  • plastic_avatar
    plastic_avatar Posts: 747
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    It's summertime, and time for hotdogs.

    I figured, at the very least, I'd log in, say hi, and prep for some post-July-4th cookout meals:

    4fasvjhlxj8c.png

    (I take exception with the WV dog being called a Carolina dog, but the chart seems otherwise almost comprehensive... missing a few from our discussions.)

    In other news, the 1C are humming along nicely (with and without the LF12-modded low-end reinforcement).

    I tried a really nice ChiFi amp that is a big improvement in clarity and speed over the stock GFA-555ii. I look forward to refurbishing the Adcom to see how they compare once the parts are kind of equalized.

    ij58riiytqx9.png
    The Thrifty Setups in Mah House Big thrifty stereo in the basement w/ my custom SDA-1C (built with help from kind forum members) * Beautiful 1966 MCM GE console upgraded w/ Bluetooth, Dual turntable, and Paradigm speakers in family room * Swanky 1980 Realistic system and great TEAC eq with dancing colored lights in the living room * custom 5B on a system for my Dad * Ye Olde college stereo in the garage
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  • bcwsrt
    bcwsrt Posts: 2,685
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    Uh … skip the dogs when in the Czech Republic. Traditional Czech cuisine is much better than their interpretation of a hot dog.

    Brian

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  • skipshot12
    skipshot12 Posts: 2,155
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    That dog top left looks like Sabrett’s.

    I’d start from the that New York dog then work my way through the list.

    Having dogs tonight but I’m having to do them inside.
    For some reason my grill took a Hud.
    Gas blockage somewhere, nothing gets to the burner it just pressurizes the line.
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  • skipshot12
    skipshot12 Posts: 2,155
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    What is the amp, some specs please.

    Reminds me of a Gamut in a way.
    What’s the guts look like?
    How’s lower freq’s?
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  • plastic_avatar
    plastic_avatar Posts: 747
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    108P NHB-108 Pro (clone) https://a.aliexpress.com/_mOfbhtz

    I got it for less than $500 (before shipping) in April. The price rose because of reasons...

    I chose it over this

    D5PRO and D5PRO BC 1:1 Copy NHB-108 https://a.aliexpress.com/_mKxiGRH

    because the ASY had a dual mono setup and balanced inputs + RCA.

    However, my ASY is a first gen with a pair teeny caps reversed on the boards. I took a partial refund to have it fixed, rather than send it back (tariffs suck).

    But, the D5Pro is all the rage amongst the ChiFi crowd. Cost/performance ratio is crazy.

    Sunshine Audio is one of the places recommended by guys who run a ChiFi group. They sell that D5Pro version.

    I'm astounded at the sound I squeeze out of my speakers with the new amp. So repairing it is acceptable with the compensation.

    New ones don't have the issue.

    I haven't heard any complaints on the D5Pro.

    If I had the funds, I'd buy D5Pros for 6 of us to try... I trust the opinions of the guys who have them that much. C'mon Lottery!
    The Thrifty Setups in Mah House Big thrifty stereo in the basement w/ my custom SDA-1C (built with help from kind forum members) * Beautiful 1966 MCM GE console upgraded w/ Bluetooth, Dual turntable, and Paradigm speakers in family room * Swanky 1980 Realistic system and great TEAC eq with dancing colored lights in the living room * custom 5B on a system for my Dad * Ye Olde college stereo in the garage
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  • skipshot12
    skipshot12 Posts: 2,155
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    At that price they'd be worth a try.
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