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S.M.S.L A50 PRO HiFi Power Amplifier, High/Low pass filter 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control

Description:

  • Getting ten crossover frequency points adjustable for High-pass and low-pass each.Subwoofer's volume can set it separetely,which perfectly can use well for different main speaker and passive subwoofer and build your real 2.1 speaker system.
  • Passive subwoofer with adjustable volume and high power: The A50 Pro provides 100 watts of passive bass output power. lt effortlessly handles various speakers and scenarios, allowing you to adjust the subwoofer volume from S00 to S99 as desired.
  • Multiple EQ presets:This digital amplifier features multiple EQ presets, allowing it to adapt to various music styles and provide a diverse listening experience. Additionally, it has bass and treble adjustments, with a customizable range of ±9 levels.
  • Higher versatility Supports multiple devices:USB-Cport supports driver-free use.HDMl (ARC) is compatible with most televisions and also equipped with optical input and AUXinput. it's suitable for almost all audio connections.
  • 12-month warranty, you can return the item or replace a new one if you have any problems.
  • Review:

    5.0 out of 5 stars Fun, affordable, subwoofer amp built in!

    M. · February 23, 2025

    This is a fun little Amp! I set it up for Dad as a soundbar replacement and to use with a Bluetooth turntable. We had tried a cheaper BT amp with a remote, but the volume control was spotty and he didn't like that. This one works fantastic, though. Setting up tone controls and navigating menus is a little clunky, but you don't have to do that often.It sounds really good! I haven't compared it to any of my higher end gear in an A-B comparison, but it holds its own with decent speakers. It has a multitude of digital inputs. Bluetooth connects quickly and easily. Remote works well. I like that it has a sub output with switchable and adjustable crossovers, both LPF and HPF so you can really dial it in. We're not utilizing it right now, but I'm tempted to buy one just so I can play with it and a passive sub!The display, although small, is enough to clue you in to what you're doing. It's better than a lot of this type of amp that have no display at all.

    4.0 out of 5 stars This is a win for tv speaker setup!

    M.B. · March 10, 2025

    Good little amp. Bought to drive my bookshelves and small sub for my tv. Works with arc perfectly, and has plenty of inputs. Booth works easily and the eq, tone controls, and low/high pass filters are helpful for tuning! Provides plenty of power to my 6 ohm speakers and is crystal clear. Can’t beleive how small it is! This is a win!Update - could not get my subwoofer to work as it’s not passive. Disappointing. Not sure why they chose to use speaker level inputs like that instead of just having an RCA sub out. Just be careful with what sub you use - mine doesn’t have high level output so this amp won’t work out after all.

    5.0 out of 5 stars S.M.S.L. RSOpro- great little 2.1 amp with optical

    F. · June 9, 2025

    Very good amp. Has some nice features. Has a mild eq, bass, treble, subwoofer controls including high and low pass filters. The amp sounds very nice. Great features for the price. There are not many 2.1 amps with optical in this polished. Highly recommend for many systems. Currently using it with a small sub woofer and 4” main speakers and I am very much impressed with the sound and volume. How don’t think you could do better at twice the price.

    1.0 out of 5 stars Buggy little device

    L.C. · February 13, 2025

    I've owned this unit for 6mo and Its ok. Pretty good sound for the price, but a lot of minor issues. I am running into the problem where the device doesnt repond to power down, setting change, or respond when external input is applied. I need to frequently unplug the DC barrel jack to reset it and have not received a response from support team.Power button no longer works and need to restart everytime now to get sound to come out of the amp. Do not recommend this product.

    5.0 out of 5 stars Little but Mighty!

    A.M.K. · November 15, 2024

    The SMSL A50 was purchased to provide better sound clarity for our tv viewing. The set up was easy and very intuitive, although I actually looked at the pamphlet for some guidance. The product came complete with all the cabling needed to connect the device to the tv, even an optics cable. The sound is crisp and clean, but there are limited tone presets as options. I would have liked individual treble and bass controls, but for the price, the presets are adequate. I have the A50 connected to Wharfedale 10.1 bookshelf speakers and the sound is really good. Another feature is Bluetooth, that allows fantastic music streaming.

    3.0 out of 5 stars Great Features, but Major Subwoofer Output Issues

    M.R. · April 18, 2025

    I've been using the SMSL A50 Pro in my DIY soundbar build, and while there’s a lot to like, there’s also a major drawback that holds it back from being a full recommendation.The positives:HDMI ARC support is fantastic — it lets me control the amp and TV volume with a single remote.The customizable crossover settings are a great feature for integrating L/R speakers with a subwoofer.Sound quality on the L/R channels is clean, detailed, a bit harsh with my build but the EQ settings let me fix that.The Negatives:The subwoofer output is a major disappointment. Even with bass boost on and the subwoofer level maxed out, the A50 Pro struggles to deliver enough power. I designed my passive radiator subwoofer to reach full excursion at around 40W, but this amp can't get it there — even after upgrading to a 220W aftermarket power supply.For comparison, my Fosi BT30D (also rated at 100W sub output) easily drives the same sub to full performance, showing that the limitation is clearly in the SMSL’s subwoofer amp design, not my speaker setup.Given that one-third of the amp’s purpose (the subwoofer channel) doesn’t perform as advertised, I’m giving it 3 stars.It’s still a solid product for L/R duty with a powered subwoofer,but if you're planning to drive a passive subwoofer, you’ll likely be disappointed.

    5.0 out of 5 stars Amazing Sound on a Budget - Beats Any Soundbar!

    T.V. · February 17, 2025

    We were looking to improve the audio from the TV at my parents' house, but wanted to do it on a budget. A full-fledged AV receiver was out of the question, so we aimed for a simple 2-channel system with ARC connectivity. This S.M.S.L A50 PRO HiFi Power Amplifier turned out to be the perfect solution!Combined with a pair of bookshelf speakers from Costco (just $99!), and this amplifier (around $90), we created a system that blows away any TV's built-in speakers. Honestly, this setup is cheaper and sounds significantly better than most soundbars on the market.The ARC connection works flawlessly. My parents can control the volume directly with their TV remote, so they never even have to touch the amplifier's remote. It's incredibly convenient.While the amplifier has other features like Bluetooth connectivity, my parents primarily use it with the TV. They essentially use the TV as a "poor man's AV receiver" and the S.M.S.L. A50 PRO to power their Klipsch KD-50 speakers. This setup works beautifully. If you're looking for a cost-effective way to drastically improve your TV audio, I highly recommend this amplifier. It delivers amazing sound quality without breaking the bank.

    Excellent SMSL

    S. · January 30, 2025

    The media could not be loaded. Flexible amp. HDMI arc links to tv (perfect lip-synch) and optical links to WiiM pro and SMSL SU1 dac. Streaming from iPhone is excellent. Originally bought as a sound bar alternative but linked to WiiM the amp takes on general hi-fi duties in the longe. Plenty of power from this amp and it has transformed my listening experience for relatively small costs. Recommended.

    Top en Bass shakers

    E. · April 14, 2025

    Vraiment parfait pour des Bass shakers !! À des années lumière du nobsound. À tous les simracers je vous le conseille 1000 fois!

    Ciekawy wzmacniacz z kilkoma wadami

    K. · February 17, 2025

    Kupiłem ten wzmacniacz ponieważ ma opcję podłączenia pasywnego subwoofera. Niestety okazało się, że 100 watów mocy jaką się chwali SMSL A50 Pro być może jest dostępna, ale przy oporności 2 Ohm, więc podłączając 4 lub 8 Ohm subwoofer nie uzyskacie z niego prawie nic. Mój sub przy maksymalnej głośności wzmacniacza wydaje zaledwie cichy pomruk. Ze względu na to będę chyba zwracał ten wzmacniacz.Kolejny minus to regulacja bass treble. Nie działa ona tak jak niezależna korekcja niskich i wysokich tonów, a raczej jako "wilk eq", a więc kiedy dodajemy treble - znika bas, kiedy dodajemy basu - znika góra. Najlepiej zostawić te ustawienia na zero.Pomijając wady sprzęt brzmi całkiem dobrze i nie brakuje mu mocy we współpracy z głośnikami stereo.Plusem jest wejście HDMI eArc do podłączenia TV. U mnie to działa.Gdyby nie niska moc wyjścia na subwoofer byłby to bardzo dobry wzmacniacz w swojej klasie cenowej.

    Impresionante sonido y claridad

    G. · June 20, 2025

    Una equipo de muy buena fidelidad y sonido. Notas claras y de excelente calidad. El de odificador que trae integrado es de muy buena calidad. Lo conecte a unas bocinas monitor de 8 ohms y las llena completamente. No llega a calentarse con muchas horas de trabajo. Lo recomiendo ampliamente. No es el primer amplificador que tengo y realmente me sorprendió.

    Ideaal

    D. · January 6, 2025

    Zeer goede geluidskwaliteit via de optic in en de analoge ingang. Via bluetooth wel wat slechter.

    S.M.S.L A50 PRO HiFi Power Amplifier, High/Low pass filter 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control

    Product ID: UO0Q1T7E489
    Condition: New

    4

    BHD5577

    Price includes VAT & Import Duties
    Model: A50 PRO
    Availability: In Stock

    Quantity:

    |

    Order today to get by

    Free delivery on orders over BHD 20

    Return and refund policies

    Imported From: United States

    At bolo.bh, we stand behind the authenticity and quality of every product we sell. We guarantee that all items offered on our website are 100% genuine, sourced directly from authorized distributors, trusted partners, or the original brands themselves.

    We do not sell counterfeit, replica, or unauthorized goods. Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support . We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, including images, descriptions, and reviews, is provided by third-party vendors. bolo.bh is not responsible for any claims, promotions, or representations made within product content or images. For more accurate or detailed product information, please contact the manufacturer directly or reach out to Bolo Support.

    Unless otherwise stated during checkout, all prices displayed on the product page include applicable taxes and import duties.

    bolo.bh operates in accordance with the laws and regulations of Bahrain. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in Bahrain are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Similar suggestions by Bolo

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    Similar items from “Amplifiers”

    S.M.S.L A50 PRO HiFi Power Amplifier, High/Low pass filter 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control

    Product ID: UO0Q1T7E489
    Condition: New

    4

    Model: A50 PRO

    BHD5577

    Price includes VAT & Import Duties
    Availability: In Stock

    Quantity:

    |

    Order today to get by

    Free delivery on orders over BHD 20

    Return and refund policies

    Imported From: United States

    At bolo.bh, we stand behind the authenticity and quality of every product we sell. We guarantee that all items offered on our website are 100% genuine, sourced directly from authorized distributors, trusted partners, or the original brands themselves.

    We do not sell counterfeit, replica, or unauthorized goods. Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support . We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, including images, descriptions, and reviews, is provided by third-party vendors. bolo.bh is not responsible for any claims, promotions, or representations made within product content or images. For more accurate or detailed product information, please contact the manufacturer directly or reach out to Bolo Support.

    Unless otherwise stated during checkout, all prices displayed on the product page include applicable taxes and import duties.

    bolo.bh operates in accordance with the laws and regulations of Bahrain. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in Bahrain are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Description:

  • Getting ten crossover frequency points adjustable for High-pass and low-pass each.Subwoofer's volume can set it separetely,which perfectly can use well for different main speaker and passive subwoofer and build your real 2.1 speaker system.
  • Passive subwoofer with adjustable volume and high power: The A50 Pro provides 100 watts of passive bass output power. lt effortlessly handles various speakers and scenarios, allowing you to adjust the subwoofer volume from S00 to S99 as desired.
  • Multiple EQ presets:This digital amplifier features multiple EQ presets, allowing it to adapt to various music styles and provide a diverse listening experience. Additionally, it has bass and treble adjustments, with a customizable range of ±9 levels.
  • Higher versatility Supports multiple devices:USB-Cport supports driver-free use.HDMl (ARC) is compatible with most televisions and also equipped with optical input and AUXinput. it's suitable for almost all audio connections.
  • 12-month warranty, you can return the item or replace a new one if you have any problems.
  • Review:

    5.0 out of 5 stars Fun, affordable, subwoofer amp built in!

    M. · February 23, 2025

    This is a fun little Amp! I set it up for Dad as a soundbar replacement and to use with a Bluetooth turntable. We had tried a cheaper BT amp with a remote, but the volume control was spotty and he didn't like that. This one works fantastic, though. Setting up tone controls and navigating menus is a little clunky, but you don't have to do that often.It sounds really good! I haven't compared it to any of my higher end gear in an A-B comparison, but it holds its own with decent speakers. It has a multitude of digital inputs. Bluetooth connects quickly and easily. Remote works well. I like that it has a sub output with switchable and adjustable crossovers, both LPF and HPF so you can really dial it in. We're not utilizing it right now, but I'm tempted to buy one just so I can play with it and a passive sub!The display, although small, is enough to clue you in to what you're doing. It's better than a lot of this type of amp that have no display at all.

    4.0 out of 5 stars This is a win for tv speaker setup!

    M.B. · March 10, 2025

    Good little amp. Bought to drive my bookshelves and small sub for my tv. Works with arc perfectly, and has plenty of inputs. Booth works easily and the eq, tone controls, and low/high pass filters are helpful for tuning! Provides plenty of power to my 6 ohm speakers and is crystal clear. Can’t beleive how small it is! This is a win!Update - could not get my subwoofer to work as it’s not passive. Disappointing. Not sure why they chose to use speaker level inputs like that instead of just having an RCA sub out. Just be careful with what sub you use - mine doesn’t have high level output so this amp won’t work out after all.

    5.0 out of 5 stars S.M.S.L. RSOpro- great little 2.1 amp with optical

    F. · June 9, 2025

    Very good amp. Has some nice features. Has a mild eq, bass, treble, subwoofer controls including high and low pass filters. The amp sounds very nice. Great features for the price. There are not many 2.1 amps with optical in this polished. Highly recommend for many systems. Currently using it with a small sub woofer and 4” main speakers and I am very much impressed with the sound and volume. How don’t think you could do better at twice the price.

    1.0 out of 5 stars Buggy little device

    L.C. · February 13, 2025

    I've owned this unit for 6mo and Its ok. Pretty good sound for the price, but a lot of minor issues. I am running into the problem where the device doesnt repond to power down, setting change, or respond when external input is applied. I need to frequently unplug the DC barrel jack to reset it and have not received a response from support team.Power button no longer works and need to restart everytime now to get sound to come out of the amp. Do not recommend this product.

    5.0 out of 5 stars Little but Mighty!

    A.M.K. · November 15, 2024

    The SMSL A50 was purchased to provide better sound clarity for our tv viewing. The set up was easy and very intuitive, although I actually looked at the pamphlet for some guidance. The product came complete with all the cabling needed to connect the device to the tv, even an optics cable. The sound is crisp and clean, but there are limited tone presets as options. I would have liked individual treble and bass controls, but for the price, the presets are adequate. I have the A50 connected to Wharfedale 10.1 bookshelf speakers and the sound is really good. Another feature is Bluetooth, that allows fantastic music streaming.

    3.0 out of 5 stars Great Features, but Major Subwoofer Output Issues

    M.R. · April 18, 2025

    I've been using the SMSL A50 Pro in my DIY soundbar build, and while there’s a lot to like, there’s also a major drawback that holds it back from being a full recommendation.The positives:HDMI ARC support is fantastic — it lets me control the amp and TV volume with a single remote.The customizable crossover settings are a great feature for integrating L/R speakers with a subwoofer.Sound quality on the L/R channels is clean, detailed, a bit harsh with my build but the EQ settings let me fix that.The Negatives:The subwoofer output is a major disappointment. Even with bass boost on and the subwoofer level maxed out, the A50 Pro struggles to deliver enough power. I designed my passive radiator subwoofer to reach full excursion at around 40W, but this amp can't get it there — even after upgrading to a 220W aftermarket power supply.For comparison, my Fosi BT30D (also rated at 100W sub output) easily drives the same sub to full performance, showing that the limitation is clearly in the SMSL’s subwoofer amp design, not my speaker setup.Given that one-third of the amp’s purpose (the subwoofer channel) doesn’t perform as advertised, I’m giving it 3 stars.It’s still a solid product for L/R duty with a powered subwoofer,but if you're planning to drive a passive subwoofer, you’ll likely be disappointed.

    5.0 out of 5 stars Amazing Sound on a Budget - Beats Any Soundbar!

    T.V. · February 17, 2025

    We were looking to improve the audio from the TV at my parents' house, but wanted to do it on a budget. A full-fledged AV receiver was out of the question, so we aimed for a simple 2-channel system with ARC connectivity. This S.M.S.L A50 PRO HiFi Power Amplifier turned out to be the perfect solution!Combined with a pair of bookshelf speakers from Costco (just $99!), and this amplifier (around $90), we created a system that blows away any TV's built-in speakers. Honestly, this setup is cheaper and sounds significantly better than most soundbars on the market.The ARC connection works flawlessly. My parents can control the volume directly with their TV remote, so they never even have to touch the amplifier's remote. It's incredibly convenient.While the amplifier has other features like Bluetooth connectivity, my parents primarily use it with the TV. They essentially use the TV as a "poor man's AV receiver" and the S.M.S.L. A50 PRO to power their Klipsch KD-50 speakers. This setup works beautifully. If you're looking for a cost-effective way to drastically improve your TV audio, I highly recommend this amplifier. It delivers amazing sound quality without breaking the bank.

    Excellent SMSL

    S. · January 30, 2025

    The media could not be loaded. Flexible amp. HDMI arc links to tv (perfect lip-synch) and optical links to WiiM pro and SMSL SU1 dac. Streaming from iPhone is excellent. Originally bought as a sound bar alternative but linked to WiiM the amp takes on general hi-fi duties in the longe. Plenty of power from this amp and it has transformed my listening experience for relatively small costs. Recommended.

    Top en Bass shakers

    E. · April 14, 2025

    Vraiment parfait pour des Bass shakers !! À des années lumière du nobsound. À tous les simracers je vous le conseille 1000 fois!

    Ciekawy wzmacniacz z kilkoma wadami

    K. · February 17, 2025

    Kupiłem ten wzmacniacz ponieważ ma opcję podłączenia pasywnego subwoofera. Niestety okazało się, że 100 watów mocy jaką się chwali SMSL A50 Pro być może jest dostępna, ale przy oporności 2 Ohm, więc podłączając 4 lub 8 Ohm subwoofer nie uzyskacie z niego prawie nic. Mój sub przy maksymalnej głośności wzmacniacza wydaje zaledwie cichy pomruk. Ze względu na to będę chyba zwracał ten wzmacniacz.Kolejny minus to regulacja bass treble. Nie działa ona tak jak niezależna korekcja niskich i wysokich tonów, a raczej jako "wilk eq", a więc kiedy dodajemy treble - znika bas, kiedy dodajemy basu - znika góra. Najlepiej zostawić te ustawienia na zero.Pomijając wady sprzęt brzmi całkiem dobrze i nie brakuje mu mocy we współpracy z głośnikami stereo.Plusem jest wejście HDMI eArc do podłączenia TV. U mnie to działa.Gdyby nie niska moc wyjścia na subwoofer byłby to bardzo dobry wzmacniacz w swojej klasie cenowej.

    Impresionante sonido y claridad

    G. · June 20, 2025

    Una equipo de muy buena fidelidad y sonido. Notas claras y de excelente calidad. El de odificador que trae integrado es de muy buena calidad. Lo conecte a unas bocinas monitor de 8 ohms y las llena completamente. No llega a calentarse con muchas horas de trabajo. Lo recomiendo ampliamente. No es el primer amplificador que tengo y realmente me sorprendió.

    Ideaal

    D. · January 6, 2025

    Zeer goede geluidskwaliteit via de optic in en de analoge ingang. Via bluetooth wel wat slechter.

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Amplifiers”