Six NEW features to LOVE on the Fosi Audio BT20A Pro!

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  • Опубліковано 20 січ 2025

КОМЕНТАРІ • 117

  • @ForeverAnalog
    @ForeverAnalog  Рік тому +4

    If you are interested in buying the new BT20A Pro, be sure to check the description above for a 20% code (non-affiliate), good until April 30th!

  • @avpro51
    @avpro51 Рік тому +6

    I got one of these for my son and have it playing via BT through some tiny mini monitors and a powered sub built from Parts Express components. I cannot believe how good it sounds in his attic office space. Truly remarkable. For the money, it blows many Hi Fi setups away. I may give him my Wiim Mini, but as good as it is already, it is gilding the lily.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Yeah I’m about to send this one with my sons to their college apartment lol. Thanks for watching!

  • @MrBenherrmann
    @MrBenherrmann Рік тому +8

    There are two Op-Amp chip styles - the often less expensive varieties (IC's) can be had for as little as $2.99 USD each. However, the other category of chips are known as being discrete versions. The discrete models are usually larger (by an order of 1.5 to 3x the size of the smaller IC versions).
    I now own 9 different class D models, 4 of which allow one the ability to change out the Op-Amps. Although these amps were relatively inexpensive, I still went ahead and obtained the more expensive discrete versions - in this case, I found the Sparks Labs SS3602 (dual channel op amps - that's important) to be the best. For example, using the Aiyima A300 as an example - I had to put in 5 Op-Amps in that one (yes, the Sparkos Labs ones), and it turned the sound signature of that amp into one that would make you think it cost $1000 or more In addition, this Op-Amp change out made the A300 sound more like a class AB amp. Same with the Aiyima A07 (which takes 2 Op-Amps). I put 2 Sparkos Labs discrete versions in there (again - these are dual channel chips - not 1 channel), and the resulting sound change (for the better) was significant - more open, warmer, more dynamic.
    So yes, I've been Op-Amp rolling now for a few years and I've long since discovered that you get what you pay for, and the discrete versions - whether from Burson or Sparkos Labs (there are other minor companies that make them also) - can make a world of difference.
    Here's a quick great video from Sparkos Labs on changing Op-Amps, along with the difference between IC and discrete versions. It's a bit quirky and comedic in spots, but the guy is actually an electronic genius. Everybody should see this:
    ua-cam.com/video/cdYFH9ms9EE/v-deo.html
    The Sparkos Labs website is located here:
    sparkoslabs.com/

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +2

      This is excellent information, thank you! I haven't had time to figure out where to start on op amps lol. Thanks again!

    • @fritzkabeano1969
      @fritzkabeano1969 Рік тому

      Good info-Thanks

  • @frankenstudio22
    @frankenstudio22 Рік тому +4

    @ForeverAnalog - FIrst off, thank you for the videos!
    Honest/Unbiased comment here: In preparation to upgrade my new BT20A Pro, I removed the Sparkos SS3602 Chips from my Aiyima A07 (that I rolled 3 months ago) I am waiting for my BT20A Pro to arrive, In the meantime I put the original 5532 chips back in the Aiyima A07.
    Conclusion: Wow! the Sparkos SS3602 Chips sound significantly better. I heard the difference when I first swapped it out 3 months ago. But swapping the 5532 back into the Aiyima was a huge let down. Now I am probably going to purchase another set of SS3602 chips. I can't go back. LOL!

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +1

      Very interesting. Thank you for sharing!

    • @qddk9545
      @qddk9545 Рік тому +1

      You confuse people - they are 5532, and they a the worst crap.

  • @MattCoykendall1
    @MattCoykendall1 Рік тому +4

    Hey, thanks for the video, discrete op amp upgrades are an interesting one, I have yet to experiment with it. I would say the only thing really holding me back is that a chip like the SS3602 from Sparko's carries a price tag that is nearly the same as the entire amp. I would be interested if there were some noteable budget friendly suggestions that are priced more in line with the product they are going into, just to experiment with.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Yeah I’m curious how many folks do actually swap them out!

    • @frankenstudio22
      @frankenstudio22 Рік тому

      I wish there was a cheaper alternative as well. But, I did the upgrade to the Aiyima A07 and the audio improvement is undeniable.

    • @kenlyon8285
      @kenlyon8285 Рік тому

      Try the OPA2134PA for approx
      $15/pr.

    • @qddk9545
      @qddk9545 Рік тому

      @Douglas Blake RC4558 are nothing close to HiFi, old crap.

  • @kennethoransky4881
    @kennethoransky4881 Рік тому +3

    The opa2134 is a good example. It's used in some Akitika preamps.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Thank you! Did you build the Akitika yourself? I would love to build one!

  • @Zebrajellyfishphoto
    @Zebrajellyfishphoto 18 днів тому

    Wonderful video! Please help me understand something. I have owned a simple Sony receiver a dozen years. All I do is stream music from my phone via a Bluetooth receiver into the receiver. Can I get rid of my large Sony receiver and replace it with this Fosi Audio BT30D and do the same thing? I have 3 speakers, which includes a powered sub. I take the speaker leads currently to my sub and then to the 2 additional Left/Right speakers. Thank you!

    • @ForeverAnalog
      @ForeverAnalog  18 днів тому +1

      I think that will work. I don’t think I’ve reviewed the BT30D so I can’t say for sure

    • @Zebrajellyfishphoto
      @Zebrajellyfishphoto 17 днів тому

      @ForeverAnalog Thanks!

  • @hindesite
    @hindesite Рік тому +1

    I have both and the Pro runs quite warm (35C) when idle, anyone else see this (48v PSU)?

  • @briannelson4122
    @briannelson4122 Рік тому

    Thanks for the review! I'll be checking back to look at to look at the comments about swapping out the chips too.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Thanks! I just haven’t had time to dig into op amp swapping so hoping others will help us all out!

  • @991carreras3
    @991carreras3 Рік тому +1

    The wiim mini & pro has a feature that can control the volume of any amp that has no remote. Just turn off Fixed volume output in Audio settings. It's worth buying just for that feature and the EQ.

  • @johnnyelizondo3117
    @johnnyelizondo3117 Рік тому +1

    Apart from the possibility of changing the opamp, why would one get this one over the Bt30d Pro which has much more features and costs about the same? It's also TPA3255.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +1

      Fair question - I haven't heard the BT30D Pro so I can't speak to any direct comparisons - these little amps keep getting announced left and right and I do wonder if at some point if there will be market saturation issues.

  • @kenlyon8285
    @kenlyon8285 Рік тому +1

    With the Aiyima A07 , my preference was with the OPA 2134PA as the best low cost option and the Sparkos 3602 in a premium discreet unit. I have the BT20A Pro on order and will be trying them in that application once I have a good handle on it's stock presentation.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +2

      Awesome. Would love to know how they sound!

  • @oahupc4688
    @oahupc4688 Рік тому

    I bought the bt20a pro because it was not expensive and i was curious. I don't need it at all since i love my smsl da-9 amazing clean amps (i have 3 of them). I hooked up the bt20 pro and thought i would listen for an hour and then put it away BUT.... i listened to it for 5 days because it was not fatiguing at all and I wanted to listen to it for a month. I had to force myself to hook up the da-9 back because they sound great too and look MUCH better on my desk. Summery, bt20 pro sounds great and it's very relaxing to listen to and very easy to enjoy. Use the bass and treble knobs they make the amp come to life. Get the minidsp 2x4hd or even better get the minidsp flex to get any amp sounding 10x better. Also the schiit Lokius will make your speakers sound much better with any amp.

  • @higobatman
    @higobatman Рік тому

    Qual a diferença no som entre o BT20A Pro e o Cambridge AXA25?
    What is the difference in sound between the BT20A Pro and the Cambridge AXA25?

  • @StromBugSlayer
    @StromBugSlayer 9 місяців тому

    A remote would be nice. A balance knob and AptX would also be really useful.

  • @jimbo4203
    @jimbo4203 Рік тому

    I've been really happy with the sound of the fosi bt 20 AS , I hooked it to my Sonys and Polk's and it was excellent on both

  • @Greywolf74
    @Greywolf74 Рік тому

    So does a pre-out mean that you can control the volume of a powered subwoofer using the amps volume knob or is it the same thing as a line level out?

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      You can use sub, yes!

    • @williamhale2321
      @williamhale2321 Рік тому

      I'd like to know the answer to that as well. I think the pre-out will control the sub volume but don't know for sure.

  • @tenida_chatterjee
    @tenida_chatterjee 6 місяців тому

    Hi , what about over heating problem .. please reply

  • @abdallaabdalla6824
    @abdallaabdalla6824 Рік тому

    Hi, can I connect with mixer or equalizer this small amplifier?

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +1

      You could connect a DJ mixer to the one RCA input, yes, but I'm not sure how to connect an EQ given there is only one input on the amp.

    • @abdallaabdalla6824
      @abdallaabdalla6824 Рік тому

      @@ForeverAnalog ok thanks I know the process is like power amplifier, thank you

  • @quickflik3980
    @quickflik3980 Рік тому

    Im trying to pick between the ayima a07 pro/max and the bt20a non pro and pro idk what to pick because the non pro bta20 a is om sale for €75 and the pro is €115 in my country and the ao7 max is €123 and the a07 pro is €128 im running a couple B&W 686 8ohm speakers
    Pls someone give me some advice 😅

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Do you need Bluetooth?

    • @quickflik3980
      @quickflik3980 Рік тому

      @@ForeverAnalog not a must but its a nice extra

    • @quickflik3980
      @quickflik3980 Рік тому

      ⁠@@ForeverAnalog i would just like to controll the bass and treble on the amp itself im not that smart with eq software and al that other stuff (but i already own a bt20a non pro for my Q acoustic 3030i and its preforming amazing for the last 2years)
      There is also a Marantz M-CR611 for €200 near me if that would be a solid options but it is a 4ohm vcr/amp
      And the fosi V3 is €95

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      @@quickflik3980 I think BT20 A pro will work fine

    • @quickflik3980
      @quickflik3980 Рік тому

      @@ForeverAnalog but thats like almost €50 more expensive than the non pro is that realy worth it?

  • @ianpearson8976
    @ianpearson8976 Рік тому

    i have the original bt20a running through the p20 with tubes.I like the sound.I did experiment with an aiyima a07 but didnt really see much improvement.i recently picked up some mission 761 and i use spotify or tidal through pc.

  • @Dankzzz
    @Dankzzz Рік тому

    No Excuses and the EP Jar of flies is one of my favourites.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      I think it was some of their best work as a group!

  • @marcusraschke2165
    @marcusraschke2165 Місяць тому

    I like your videos and watch every test. But I need some inspirations. My old amp the Harman Kardon 6550 is gone and I need a new amp. My budget is 200,- and I use cd, phono on my broadband spreakers. V3 ? ZA3? BT20a ? MC101? Pre amp?

    • @ForeverAnalog
      @ForeverAnalog  Місяць тому

      Does your turntable have a built in phono preamp? If not, it's tough using these class D amps that do not have a phono input and still be within a $200 budget.

    • @marcusraschke2165
      @marcusraschke2165 Місяць тому

      @@ForeverAnalog no, it's an old Dual 704. I need a Phono Pre Amp. And my budget goes to 300,- Or is a small the better one ?

  • @TalkTimeVault
    @TalkTimeVault Рік тому

    I ordered one too. If you could help me out what bookshelf speaker would go with it. Regarding Ohm and watts thanks.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +1

      What's your speaker budget? Honestly, these amps can drive almost anything on the market so it's really more about the speaker qualities themselves. I only own Emotiva and Klipsch bookshelf speakers so can only really speak to those.

    • @TalkTimeVault
      @TalkTimeVault Рік тому

      ​@@ForeverAnalog thank you for your reply. It would be under £200. I thought of wharfedale diamond 9.1. By the way thanks for sharing the discount coupon.

  • @MetalMaineiac
    @MetalMaineiac Рік тому

    Just bought mine from the treadmill at the gym.
    Great review.
    Arriving tomorrow.
    Can't wait.
    Thoughts on adding the aiyima t2
    tube pre amp???

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +1

      I haven’t personally heard the t2 but I’m sure it would pair well. Thanks for watching!

  • @robertendsley8312
    @robertendsley8312 Рік тому

    How would you compare this vs the Aiyima A08 Pro?

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      The A08 Pro's auto defeating to Bluetooth feature annoys me so much that I haven't gotten it out of the box once after my review, lol. I know that sounds petty, but it drives me nuts!

    • @robertendsley8312
      @robertendsley8312 Рік тому

      I didn’t even plug the antenna nor ever hooked up the Bluetooth. Using solely to listen to vinyl thus not having that irritating problem.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Excellent idea!!!!!

  • @MarloMitchell
    @MarloMitchell Рік тому

    Can the Bluetooth be turned off?

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      There is not an on/off switch, but you can just not connect it to a device and it should default to RCA.

    • @MarloMitchell
      @MarloMitchell Рік тому

      @@ForeverAnalog What if someone random is within rage, can they be prevented from connecting to it?

    • @hagbard72
      @hagbard72 Рік тому

      Cheapaudioguy says yes, you have to press the on button for a while.

    • @MarloMitchell
      @MarloMitchell Рік тому

      @@hagbard72 he says it will disconnect any connected devices but didn't say it would turn the Bluetooth off.

    • @kenlyon8285
      @kenlyon8285 Рік тому

      I might be mistaken but as I understand it, the volume knob, if pressed & held for 5 seconds will turn off Bluetooth

  • @nishantranabliss
    @nishantranabliss Рік тому

    Thanks for the wonderful video. The pre out in it, is it variable can be controlled through volume control of the amplifier ?

  • @sdqsdq6274
    @sdqsdq6274 Рік тому

    apple is using sbc codec for bt , plus stream music is compressed , i used android phone to bt , i think bt20a doesnt have aptx bt ,not sure about the pro model , i play flac file plus a music app called poweramp , btw AIC is mine jam , but mad season river of deceit on mine playlist , i can hear clarity on it

    • @luism8612
      @luism8612 Рік тому

      Not true apple uses aac codec rich sound good on iOS

  • @Trevscuriosites
    @Trevscuriosites Рік тому

    I am using android phone and flac files with Monitor Audio speakers with BT20A sounds really good so if the pro has better specs it must be great but I am not upgrading for now happy with my setup

  • @scottbennett3119
    @scottbennett3119 Рік тому

    Hello, I have enjoyed your channel for years. Does your 20a pro have a little slack in the volume control when turning it back and forth? Thank you.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      I haven't used mine in a few months (due to reviewing a lot of products this year) but I never noticed any lack in the volume control when it was in operation. Thank you for the kind words!

  • @richh650
    @richh650 Рік тому +2

    One revision to your video. One MUST buy a 48-Volt Power Supply with greater amperage output in order to get the 300WPC it advertises. That wattage output rating is not obtainable with the 32-volt power supply that comes with it.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Yes excellent point thank you!

    • @kenlyon8285
      @kenlyon8285 Рік тому

      With the supplied SMPS the real world output is approx 45-50 w / ch @ 8ohms & 90-95 w /ch @4ohms

    • @jimfarrell4635
      @jimfarrell4635 Рік тому +2

      @Ken Lyon Absolutely. You won't get the claimed 300 watts with the 48 watt power supply either, but maybe 100 into 8 ohms and 150 into 4, which is still fantastic for such a tiny amp. Reckon it will run pretty hot, though.

  • @qddk9545
    @qddk9545 Рік тому

    I can follow you, I am very fond of some Breezer T-amps I have bought that sounds fantastic for the price ... but an ´Analog Forever´ T-shirt 🙂🙂
    Do yourself a favor at put 2 LM4562 op-amps in the amp, and you will love it to pieces. Of course Sparkos 3602 are better, but they cost the same as
    the amp.

  • @Ian-wh8ut
    @Ian-wh8ut Рік тому

    i really dig the mingus referance. horns talking and all!by the way im not sure what this means. can you describe whats called (sylibent) thanks!

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Thank you - Sibilance is like a hissing sound whenever the letter s or other combinations are used - kind of sounds like a snake lol

  • @mikecampbell5856
    @mikecampbell5856 Рік тому +2

    Very interesting video. I have always been anti Class D, but I bought a Fosi P1 tube preamp and even though it's a tube device, I'm sure it's Class D. It sounds great like my Sabaj A10h headphone amp that I use as a remote volume control with my vintage gear. I'm sure it's Class D and it is awesome.

  • @Mikegritz
    @Mikegritz Рік тому +1

    Just a question, you said they send the item to you, but do they require you to send them your review before publishing?

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      No - thanks for asking!

    • @Mikegritz
      @Mikegritz Рік тому +1

      Thanks, just wondering cuz there are like 3 videos out on this product today. Cheap audio guys review said he had to go over talking points and send his video in before for review before publishing.. I absolutely appreciate your reviews. Thanks for the Bluetooth critique.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      @@Mikegritz Thanks for the kind words!

  • @Cabernetor
    @Cabernetor Рік тому

    Get a Wiim Pro and control the volume/EQ with the app and you're set!

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +1

      VERY TRUE! Thanks for watching!

    • @avpro51
      @avpro51 Рік тому +1

      The Mini will do this too. The Pro just has RCAs instead of mini jacks and a more conventional chassis style if you like that.

  • @motleypixel
    @motleypixel Рік тому

    Man, I'm really digging your channel content, glad I subscribed. I "might" take advantage of that 20% off but I'm not grounded on a good direction to take now. I hope you have a hot 5 mins to digest and respond, here's my situation: Old 94' Sony gear, integrated 100w amp/tuner, 5 disc cd changer (analog only), PL-7 TT (was my dad's from the mid-80's) and finally just two simple BIC Venturi bookshelf speakers. So if I keep my amp my only route I've considered is a good multi-function DAC and replace my CD player with one that has digital out (optical and/or coax). But now I'm wondering if I should re-vamp even more, as in perhaps remove my old 94 Sony amp and go with something more modern and small like this. If so I'm thinking about my need for a pre-amp with my TT in addition to needing more than one analog RCA input (one for TT and one for CD player). So help me out here, in keeping with minimalist config. and price (not about to spend north of $300 for new gear). I'd like to find sort of an all-in-one, pre-amp, amp, BT, DAC, with a min 4 speaker driver setup. Thoughts? Thank you.

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      Thanks for the kind words - have you looked at the Sony STRDH190? It's not small like these class D amps, but I think it will give you a lot of the options you seek for $198. I reviewed the amp on my channel awhile back if you want my thoughts - spoiler, it surprised me, in a good way! lol

  • @Ian-wh8ut
    @Ian-wh8ut Рік тому

    sibelant?

  • @jericlee1509
    @jericlee1509 Рік тому

    wow, im new to audiophile, planning to buy bt20a pro. adding speaker playing via phone, could i add dac?

    • @ForeverAnalog
      @ForeverAnalog  Рік тому +1

      You should check out the WiiM Mini wireless streamer! Great built in DAC.

    • @jericlee1509
      @jericlee1509 Рік тому

      @@ForeverAnalog thanks

  • @tigerbalm666
    @tigerbalm666 Рік тому

    All these reviews trashing BT is odd, i has a BT receiver that has a DAC and it sounds good to me! Maybe peeps are not using BT with a gud dac? I stream Flac and no complaints...

    • @ForeverAnalog
      @ForeverAnalog  Рік тому

      My review actually says not to throw your BT in the trash 😂

  • @angelheart1129
    @angelheart1129 Рік тому +1

    Received one today
    Returned poor sound

  • @christiansmith-of7dt
    @christiansmith-of7dt Рік тому +1

    My ears are so burned out I don't even want to hear music anymore

    • @qddk9545
      @qddk9545 Рік тому

      Then why are you here, and why do you comment ????

    • @sdqsdq6274
      @sdqsdq6274 Рік тому

      lol

  • @antipathy17
    @antipathy17 5 місяців тому

    The output of these products is absolutely different. You need to check the specs. The pro is not just a more robust og, it doesn't have the same ohms or watts.