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Product Highlights
Classic TPA3116
- Classic TPA3116 amplifier chip can offer 100W high power
- Compatible with 2~8 ohm speakers
- Can drive most home sub and mono speakers
Dual NE5532 OP-Amp
- Dual NE5532 OP-Amp can offer high dynamic and analysis
SUB & PBTL Modes
- G2 can be used as a mono channel amp or a sub amp
- One G2 can drive one passive subwoofer or one signal channel passive speaker
- Two or three G2 can be used to build a 2.0 or 2.1 audio system
SUB Frequency Control
- With independent SUB frequency control knob
- It can be turned to minimum to cutoff bass
Gain Setting
- A gain switch on the bottom of the amplifier to allow 4-level of output level setting (20/26/32/36 dB), to keep the sound quality better and not affected by the the resistor part.
Upgrade Circuit
- Optimized circuit can ensure totally no background noise
- Built-in speaker protection circuit and low pass bass filter.
Panel Introduction
How to use
(A) SUB Mode
- Use RCA cable to connect your audio sources like Phone / MP3 / PC / TV ... to the "AUDIO IN" port
- Use speaker wire or banana plug to connect your passive subwoofer to the "SPK OUT" port
- Connect the power supply with the amp firstly and then to the wall
- Turn the toggle to "SUB"
- Turn the toggle to "ON"
(B) Mono Channel Mode
- Mono channel means single right channel or left channel. If you want to drive stereo speakers. you need two of this amps to drive right and left speakers separately
- Use RCA cable to connect your audio sources like Phone / MP3 / PC / TV ... to the left or right "AUDIO IN" port
- Use speaker wire or banana plug to connect your left or right speaker to the "SPK OUT" port
- Connect the power supply with the amp firstly and then to the wall
- Turn the toggle to "PBTL"
- Turn the toggle to "ON"
Brenda K
Reviewed in the United States on July 7, 2024
Nobsound G2 Subwoofer Power Amplifier Mini Mono SUB Amp 100W:[I am only using the sub-woofer setting, with one input signal line hooked up to the + terminal. Either terminal works ok. My preamp only has one mono line out for the sub-woofer. My sub-woofer speaker is 6 ohms].. Worked ok out of the box. The Nobsound sub-woofer amp cutoff freq and volume adj knobs worked ok. Initially I forgot to turn up the volume on my preamp, but once I did that everything worked with good volume.. The gain setting switches on the bottom also worked as expected. I set mine to max(36db for now). The 20db setting was a little too low for my setup.. There is slight hum(perhaps 60hz) without any input, but it is not heard once music, etc is playing. Others have mentioned the hum so I do not think it is my preamp. It possibly could be from the power supply?. Good unit so far
無悩
Reviewed in Japan on May 27, 2024
サブウーハーとの併用でButtkickerの重低音振動ユニットを以前から使用しており、振動ユニットのみ単体のサブウーファー用アンプで駆動していましたが、元ソースとして使用しているAVアンプのLFE（※低音域効果音チャンネル・通常はアクティブサブウーファーの駆動用に使用）ライン出力が低いのか、ある映像ソースでは丁度いいのに別のソースでは目一杯ボリュームを上げても殆ど反応しなかったりと今ひとつ安定せず、かといってAVアンプのLFEを弄ると今度は全体的な音のバランスが崩れるという、どうにも決まらない状況でした。こちらのサブウーファーアンプも基本仕様は元々使用していたものと殆ど一緒でしたが、入力ソース側のゲイン調節が可能という点に惹かれて購入。デフォルトより１段低い入力ゲインで設定したところ、従来のサブウーファーアンプでは殆ど反応しなかった映像ソースで振動ユニットが反応し、元々が丁度よい映像ソースでも音量ボリュームの可変範囲で調整可能と、まさに狙い通りの効果で上々の使い勝手です。
Customer
Reviewed in Canada on March 18, 2024
Awesome!! Best little bass amp on the market. Paired this with 2 Dayton audio TT25’s for a drum throne for use with electronic drums. For the price of TT25’s and the bass amp, it sure gives my buttkicker a run for the money. Considering the buttkicker comes in at almost 4 times the price. Now I wish I went this route for my racing sim rig. This little unit will definitely power some BST-1’s. Try it out, you definitely will not be disappointed
Marty
Reviewed in the United States on February 7, 2024
There are lots of mini amps out there, this one is pretty solid. The output is very impressive, it really puts out what its power supply can. The gain switches are hugely helpful to fine tune what the gain attenuation knob results in based on the input signal level source you're using. The unit feels good, solid knobs and switches, nothing is loose. All terminals feel good. It's heafty too, it does not feel like a flimsy little light weight thing. If you need more power, you need more power supply. This comes with a 100w capable power supply. Solid right out of the box. Fantastic for $50.
Jack of all trades, Master of Some
Reviewed in the United States on December 9, 2024
Thunder. For 50 bucks I am blown away by this tiny little amp that kicks out big Power.I hooked this up to a rejuvenated old Panasonic ported subwoofer from a mini home theater system from the '90s that was reloaded with a $30 Skar Audio 6.5 inch subwoofer.The adjustment knob for the bass frequency coupled with the volume knob and the subwoofer/full-range switch on this little Nobsound unit can pump out some big bass from a tiny sub. It's powerful enough that I cannot turn it all the way up and at 50% volume it sounds amazing. The signal is coming from the AUX port of my Fouk Audio mini tube amp. This combination along with some tiny Polk Audio bookshelf speakers sounds incredible in a 12x12 bedroom. Absolute High-Fidelity clarity, rich sound, clear vocals, and thundering bass. This is a great mini system that will sound (and feel) awesome for a medium-sized room.
Sandee E.
Reviewed in the United States on December 15, 2024
Bought a soundbar that came with a passive subwoofer for my desk setup but didn’t have enough stuff to really be effective. Bought this amp, spliced it inline and now have complete low end control at my fingertips. Allows me to fill out the sound quite nicely and it looks good on my desk…
J. D. Sigona
Reviewed in the United States on November 8, 2024
Perfect amp for bass shakers, more than enough power, well built, nice big knobs
Tonyp
Reviewed in the United States on November 13, 2024
Great amp for bass and especially transducers . Having frequency control is great . Solid construction
CARLOS R.
Reviewed in Mexico on January 30, 2024
Amplificador clase D de buena calidad; sin embargo para sacar el mayor provecho se requiere de una fuente de mayor voltaje y a corriente para aprovechar la máxima potencia, cumple cabalmente, el nivel de audio es aceptable si se poseen los woofers adecuados, buena compra.
Hebert Moreira
Reviewed in Canada on January 24, 2024
The Nobsound G2 Subwoofer has taken my gaming experience to a whole new level! Paired seamlessly with my Buttkicker, this subwoofer delivers powerful bass that translates into incredible haptic feedback. The setup was a breeze, and its compact design blends effortlessly into my gaming space.The G2's performance is outstanding, offering deep and immersive bass without a hint of distortion, even at high volumes. The tactile feedback adds a realistic dimension to gaming, making every explosion and rumble more intense.If you're a gaming enthusiast looking to elevate your haptic feedback, the Nobsound G2 is a must-have. It's reliable, easy to use, and truly enhances the excitement of gaming. Five stars without a doubt!
Bryan Shaw
Reviewed in the United States on February 12, 2023
I'm using this with an S.M.S.L. A300 amp to hook up a passive subwoofer to it's line-level sub output. It is working perfectly for my needs. PLENTY of power output (I've got the volume set to about 1/3). This devices cutoff of 300Hz is plenty compatible with the 100Hz of the A300.I did notice that in theory the sub freq knob should be able to go down to about 1/3 without impact, but I notice the difference in sound far before that, so I assume it's a non-linear scale. Not a big deal, but might be nice if the knob was labeled in some way so you knew what frequency you are dialing in.That being said for the price I cannot complain.Note that if you are using this for a sub amp be sure to select SUB rather than PBTL with the second switch. If you select full range (PBTL) it has a drastic impact on the output. Which is a BIT odd since I'm already sending only 0-100Hz to the unit from the SMSL. NBD since the SUB setting is most correct for my use anyway, but something to be aware of if you hook it up and think it sounds... off. Quiet.Dont take my minor criticisms for anything but that: nitpicks. I love the amp and am completely happy, especially for the low price.
Duncan Savage
Reviewed in Australia on October 14, 2023
Bought this to pair with a Buttkicker Concert Mini mounted to my drum throne to provide sub bass feedback when playing electronic drums. Switched it to Subwoofer mode, dialed the crossover frequency right down and it works perfectly!
Marco van Hylckama Vlieg
Reviewed in the United States on July 2, 2022
I have an older M&K "Volkswoofer" sub. It sounds absolutely fantastic but the internal amp is starting to fail. I considered having it repaired / recapped but then I was like "Let's try one of those cheap Class D amps and see how that works out!"This little amp is absolutely perfect. Super tight bass. Gone is the buzzing, popping and gurgling sound that was coming from the built in amp. The built in amp also ran so hot that you could barely touch the back of the sub without burning your fingers.This little amp is quiet, stays cool and sounds wonderful. And it costs far less than having that old built in amp repaired. My sub now works and sounds like new.The two voice coils in parallel measure 2 ohm which is really low but this little gem can actually handle that low an impedance!Absolutely fantastic. Unbelievable at this price too.If you are just like me reviving an older sub, this thing is what you need to buy!
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