Hey I've got the same unit, in fact it arrived today..But could you help this newby... do you have to splice the cable, then put them in the banana plugs, or did you just bought the cables connected with the plugs already
I'm using one of these to power a set of silver flute 6.5's, a pair cdt tweeters through a crossover network and a pair of sundown audio sa-8v2 dual 4ohm subs wired in series/parallel to 4Ω. I am almost as amazed at how good it sounds as I am with how loud it gets in a small gaming/listening room.
I concur the dual sub outs are such a bonus. Just to add if you’re a cheapie old school guy like me who used to splice multiple speakers for lower ohm loads, this amp will go into protect under 4 ohms
Great review! I just bought one before I found this video. Looking forward to when it arrives. It is replacing a Dayton Audio DTA-1 as I am adding a sub and wanted some more controls.
How's the sound difference with the Dayton Audio? I currently have a DTA-2.1 and I was looking at that Fosi, but it seems like a sidegrade. I understand that you wanted the sub out, but do you find any difference in sound quality between the 2 amps?
@@12chrisrob Sorry about the delayed reply, I apparently don't check my UA-cam notifications often enough. 🙂 There is definitely a sound improvement, the Dayton worked fine, but did not have as much power which I think is noticeable with sound clarity. My DTA1 also started having some issues, I think only one speaker was working. I can probably fix it if I tear it apart and take a look, but for inexpensive as it was, it really wasn't a big deal to replace it.
I have recently bought one still in shipping I have two 100 watt 8ohm 86db sensitive and one active subwoofer this amp claims to perfect for my system will update soon
@@AdamSmith-fe9jf i entirely forgot about this comment sorry. i am very impressed and two months after i got it i got a full surround sound av receiver from family and this thing sounded pretty much just as good as a yamaha rx-v530 so yes i am very supprised
Bluetooth audio quality is mediocre. Power declares is without any indication of impedance so guess what? Probably you will get 50% of specs. Also, it's true device is small, but power supply is a brick 2 times the size of amplifier. I ordered in Amazon and sent it back the next day. I don't recommend this Fosi amplifiers.
@@TIPER2K typically the 3116 amplifier chips output around 18 watts per channel of clean power. The 50 watts claimed is at 10% distortion which is unlistenable. But 18 watts is decent for regular listening. Not quite enough for a party environment.
Does the master volume also affect to the volume level of subwoofer? This is important thing at least for me so you don't have to adjust sub volume every time you crank it up or down.
I just got the Fosi Audio BT30D amp to power my speakers and sub. This doesn't have a DAC but I do have the FIIO Q3 headphone amp/DAC. I was going to use my TV Sony 48A9S aux out to Q3 to the BT30D. Is there anything wrong doing this? To power my speaker components and passive subwoofer?
hey bro i just got mine today! it is super awesome when connected to my desktop but when i connect it via bluetooth only subs are working not the speakers. Did you encounter this problem before?
I bought this product yesterday. I don't have Bluetooth in my car, so I'm going to install it in my car with the intention of using it easily. The power of the vehicle is 12v, but it's questionable whether the output If the output is small, we plan to use a 12v-24v booster.
I want to hook up my 2-channel-integrated amp to a subwoofer all I have is a tape out (I know not to use tape out) and preamp out. Can I use the preamp out (RCA out) to connect to the Fosi Audio BT3OD and then hook the sub to the Fosi audio?
Ordered mine on a Wednesday, collected it Thursday morning and returned it same day afternoon after discovering that both left and right speaker channels were not working and only subwoofer channel worked and it sounded terrible.
I already have a BL20C in my lounge, but looking at one of these for the den. The powered sub I would use has a volume control but no frequency control and I would want to limit the sub to about 60Hz. So do the sub volume and frequency controls work on the active sub out or only the passive outs?
Hi bro, need to ask this before buying. Does the output chanel become mono (right and left producing same sound) when you use aux line in as an input source?
At 1:23 you can see that the aux RCA input is split into a red R in and a white L in. I see no reason why these should get artificially merged in the amplifier, the 3 channels are there and ready.
@@hide3reptiles365 i bought other brand amplifier, which using Bluetooth and 3.5mm aux jack as an input. when i use Bluetooth as the connection, the sound produced by the amplifier will be stereo. but when i use the 3.5mm aux as the connection (with the same sound source), the sound that produced by the amplifier will be mono. the right and the left channels produced the same sound. exactly the same. actually after posting the previous question on the comment section, i bought aiyima A03 with the same chipset with my previous amplifier, but it has same built with this fosi audio. it went good. its RCA input and bluetooth went very good.
I have a pair of passive bookshelf speakers. Using it with 2.0 channel amp. Want to upgrade to 2.1 amp first and get a subwoofer later after few months or try to build my own. So my doubt is, will the 2.1 amp be able to provide low frequency(like 2.0 ch amp) for my existing speakers without SubW or will it stay diverted and miss the low frequency.
I buy passive subwoofers from thrift stores for $5-10. They sound great with bookshelf speakers. The extra bass punch makes a huge difference, even if the sub has only a 6" driver. I prefer 8-10" sub drivers, though. They are very common in thrift stores.
@@DanLimbach I think he’s asking about the frequency range of the two speaker outputs. Maybe it only outputs above a certain range. For example above 50Hz
I think that amp would kill the sound of your bookshelf speakers with a sub connected...that review demonstrated a silly weak sound when he turned the sub volume down.
Hi ALS I liked your video about this amp, it has good facilities but, to make full use of it (to play vinyl, CDs, etc.), this amp will need a pre-amp and as such is there a Fosi Audio pre-amp to go with it?
What do you mean it needs a preamp? The volume control is the preamp. It's an integrated amplifier, not a power amp, so it will work with and adjust the amplification level of any line level source such as your phone or CD player. Vinyl is the one exception, you would need a phono preamp if your turntable does not have one built in. If you really want a preamp though, Fosi has options at fosiaudio.com/collections/preamplifier.
@@masonwilde1464 Hi Mr Wild You asked, "What do you mean it needs a preamp?". Well, I was thinking that since this amp only has one set of RCA inputs then connecting a preamp to it, that has three additional RCA input including one for a turntable, would be a good idea. So, that's what I meant by attaching a preamp.
I believe Fosi do have a pre-amp in their range. I'm not sure what market that would fit into though. This product is very good but is really aimed at Spotify/iTunes users rather than a HiFi separates setup. That said, most turntables and other playback devices send pre-amped line-out anyway. Be aware that this only has one line-in.
What brand of cables are you using? I think I need a 1 male to 2 male y splitter...that's the only way I can see this thing working...but the 2 cables that came with the sub...what are they for?
Me too. And there no any password to connect. Only becouse of this I'm bought Fosi Audio BT20C. There is an similar device "AIYIMA TPA3116" with BT/AUX switch on front panel - unlike in BT20C and other Fosi Audio. Suppose, there is a way to manually solder physical switch on front panel to disable BT.
@@TheLukemcdaniel , agree. They must improve their product line with this switch (with reviewing of the case dimensions or composition). Switch on the front panel is preferable.
@@RustamVID I'd be okay with having the volume knob include a button that switched between. Maybe use that for pairing if you hold it down. They make rotary encoders like that
Just bought one of these off Amazon, and am now wondering if i can somehow connect it to my Home Theatre AVR/AMplifier so i can use it as a seperate power source and still take advantage of the signal processing abilities?
Can you connect stripped wires from speakers? I have two old speakers from a stereo that broke and the speakers connected to spring loaded connectors on the back, but I haven’t seen any amplifiers that have those.
@@jackwaau I ended up buying a Pyle amp, it has both Bluetooth and cable connectors, so it works with most devises. And those old speakers sound great!
@@estuchedepeluche2212 I assume the Pyle in an op amp model. You may be able to swap out the op amp IC. It's a common upgrade for op amps and worth looking into.
I don’t think so but I’m currently waiting to receive a model from them called BL20C which has more wattage per channel and an active sub out only. Might be more what you need.
Yes, I got the BL20C and use with a powered sub which has its own volume and frequency controls. This thing is driving 2 x Jamo E680 speakers with 2x8” woofers, a 3.5” mid and 1” tweeter per speaker. Loads of volume and the bass and treble controls work very nicely.
@@als-techreview hey, does sub vol and freq change the freq and vol of rca output too, or only the freq and vol of the amp output? I was planning to buy a bt30d and a bt20a, so i would have the 50w x2 for my high efficiency bookshelf stereo on my desk at my pc wich gets really loud even at 5w of power sp 50w would be deafening, and the 100w sub output set at mid-high freq to a speaker/subwoofer i put under a table wich creates high frequency bass of around 60-130hz, which resonates at the corner of the room where my pc setup is really loudly at 5 watts, that thing was insane, and if i play 100hz which is my room resonance frequency it was like 150db and painful way too loud , and put my 250w rms jbl sub in my closet wich creates loud deep bass of around 20-60hz wich id going to be powered by the bt20a bridged creating 200w max, i actually found out by playing with my other speaker/subwoofer which i powered with a 5w bluetooth amplifier and it sounded like a 500w rms car audio, so... , and the speaker/subwoofer is a 30w rms 190w max 5 inch car speaker, all because i put it in my closet lol, the second i open my closet, boom gone, no bass at all. But i have to be able to make it so that the subwoofer under the table is high freq and thr sub low freq, but since im hooking up the bt20a to the bt30d with rca, i need to know if changing the freq options on bt30d will affect the rca output going to the bt30a aswell not just the output of the bt30d, if yes what can i do? Also im kinda new to this stuff so does changing freq change like a range? Like for example 30-60hz to 60-90hz, or does it change like 0hz-30hz, to 0-60hz, which means i could actually use it the way i intended it to by making the bt30d sub high freq going to the speaker under the table and the rca going to the bt20a which i would put a low pass on, or is there something else i could do, like for example instead of the bt20a use an actual subwoofer amp thats 300w rms, but i dont know which one, which is probably what im going to do, but i again need to know if changing the freq to higher will remove the low freqs or just allow higher freq, i could use a splitter but then chaning volume on the bt30d wont affect the sub amp, so help what do i do? Is there something you can buy like a volume/gain knob which splits the cable going into the inouts of the amps? So that way i could control both amps? If yes i might be saved.
I bought this unit 2 months ago, all working well and the sound is amazing for my 25 watts (8ohm) + DIY subwoofer speakers in my tinny room.
Hey I've got the same unit, in fact it arrived today..But could you help this newby... do you have to splice the cable, then put them in the banana plugs, or did you just bought the cables connected with the plugs already
@@RobertSpiller I connected the unit to speakers with standard speakers cable directly (without banana plug).
I'm using one of these to power a set of silver flute 6.5's, a pair cdt tweeters through a crossover network and a pair of sundown audio sa-8v2 dual 4ohm subs wired in series/parallel to 4Ω.
I am almost as amazed at how good it sounds as I am with how loud it gets in a small gaming/listening room.
For banana cable which mm i should buy can you tell pls
I concur the dual sub outs are such a bonus. Just to add if you’re a cheapie old school guy like me who used to splice multiple speakers for lower ohm loads, this amp will go into protect under 4 ohms
Will this unit handle 4ohm speakers?
@@1mrdems yes but anything under the amp will get really warm, and on 2 ohms will go into protect
I've tried 2x 6 ohm speakers in parallel. The amp does start to get warm.
@@roberthindle5146 thanks for confirmation. I am really a big fan of these mini amps especially this model
mines running on twwo ohms as the manual says 2ohm-8ohm and it runs cool
Sweet!! Just picked one up at the Swapmeet!! New in a box $5 bucks!!
Lies
Great review! I just bought one before I found this video. Looking forward to when it arrives. It is replacing a Dayton Audio DTA-1 as I am adding a sub and wanted some more controls.
Has it arrived? And how'd it go?
@@swingking08 I bought one of these on ebay today, new, from the fosi store: $60
@@jackfrosterton4135 Sweet!!
How's the sound difference with the Dayton Audio? I currently have a DTA-2.1 and I was looking at that Fosi, but it seems like a sidegrade. I understand that you wanted the sub out, but do you find any difference in sound quality between the 2 amps?
@@12chrisrob Sorry about the delayed reply, I apparently don't check my UA-cam notifications often enough. 🙂 There is definitely a sound improvement, the Dayton worked fine, but did not have as much power which I think is noticeable with sound clarity. My DTA1 also started having some issues, I think only one speaker was working. I can probably fix it if I tear it apart and take a look, but for inexpensive as it was, it really wasn't a big deal to replace it.
I have recently bought one still in shipping I have two 100 watt 8ohm 86db sensitive and one active subwoofer this amp claims to perfect for my system will update soon
Are you happy with the result and does it sound good with your speakers?
Hi, i wonder your results
@@AdamSmith-fe9jf i entirely forgot about this comment sorry. i am very impressed and two months after i got it i got a full surround sound av receiver from family and this thing sounded pretty much just as good as a yamaha rx-v530 so yes i am very supprised
I bought one of these on ebay today, new, from the fosi store: $60
Is it any good?
Does master volume control subwoofer volume when you turn it down?
dude if it is not; it's name wouldn't be "Master Volume" 😅
@@TheSkysolid Wish it was that simple bud, there is some amps that dont control both volumes when you turn master volume down ive had them.
@@Kings-vs7om master volume does control speakers and sub, the sub volume is to balance the sub volume with the speakers volume.
Would you recommend this over the Dayton Audio DTA-2.1BT amplifier or Fosi Audio DA-2120A amplifier for a pair of Klipsch R-41M bookshelf speakers?
Bluetooth audio quality is mediocre. Power declares is without any indication of impedance so guess what? Probably you will get 50% of specs. Also, it's true device is small, but power supply is a brick 2 times the size of amplifier. I ordered in Amazon and sent it back the next day. I don't recommend this Fosi amplifiers.
@@TIPER2K typically the 3116 amplifier chips output around 18 watts per channel of clean power. The 50 watts claimed is at 10% distortion which is unlistenable. But 18 watts is decent for regular listening. Not quite enough for a party environment.
Does the master volume also affect to the volume level of subwoofer? This is important thing at least for me so you don't have to adjust sub volume every time you crank it up or down.
It doesnt
The master volume DOES control the level of the subwoofer!
I have a BT30D and the sub volume IS certainly proportional to the other channels on the main volume.
You have master volume, it adjusts all speakers including sub. The sub volume is to balance the sub volume to you main speaker volume.
Can you connect 8ohms front speaker and 4 ohms subwoofer?
Just ordered a BT30D Pro after looking all over the net on a good non-expenisive unit. Liked the chinese girl dig that's funny.
Maybe a stupid question: can I connect normal passive speakers to the powered sub out without sounding trash? I really need 3 channel output...
what od speakers and with what of rms do you use in video?
I just got the Fosi Audio BT30D amp to power my speakers and sub. This doesn't have a DAC but I do have the FIIO Q3 headphone amp/DAC. I was going to use my TV Sony 48A9S aux out to Q3 to the BT30D. Is there anything wrong doing this? To power my speaker components and passive subwoofer?
Are they any other mini amp that have all the same features but just a little more than 50W
This amplifier is good to music? And the terbless and bass?
hey bro i just got mine today! it is super awesome when connected to my desktop but when i connect it via bluetooth only subs are working not the speakers. Did you encounter this problem before?
I bought this product yesterday.
I don't have Bluetooth in my car, so I'm going to install it in my car with the intention of using it easily.
The power of the vehicle is 12v, but it's questionable whether the output
If the output is small, we plan to use a 12v-24v booster.
How it go?
I want to hook up my 2-channel-integrated amp to a subwoofer all I have is a tape out (I know not to use tape out) and preamp out. Can I use the preamp out (RCA out) to connect to the Fosi Audio BT3OD and then hook the sub to the Fosi audio?
Ordered mine on a Wednesday, collected it Thursday morning and returned it same day afternoon after discovering that both left and right speaker channels were not working and only subwoofer channel worked and it sounded terrible.
I already have a BL20C in my lounge, but looking at one of these for the den. The powered sub I would use has a volume control but no frequency control and I would want to limit the sub to about 60Hz. So do the sub volume and frequency controls work on the active sub out or only the passive outs?
If i don’t want to connect a subwoofer, doest it still works properly?
Yeah man
Yes
Hola, este amplificador sirve para cabinas de 3ohm y subufer de 2 ohm?
no
4 ohms a 8 ohms
hi. what size are the banana plugs you use? mine won't fit in my amp
Hi bro, need to ask this before buying. Does the output chanel become mono (right and left producing same sound) when you use aux line in as an input source?
At 1:23 you can see that the aux RCA input is split into a red R in and a white L in. I see no reason why these should get artificially merged in the amplifier, the 3 channels are there and ready.
@@hide3reptiles365 i bought other brand amplifier, which using Bluetooth and 3.5mm aux jack as an input. when i use Bluetooth as the connection, the sound produced by the amplifier will be stereo. but when i use the 3.5mm aux as the connection (with the same sound source), the sound that produced by the amplifier will be mono. the right and the left channels produced the same sound. exactly the same. actually after posting the previous question on the comment section, i bought aiyima A03 with the same chipset with my previous amplifier, but it has same built with this fosi audio. it went good. its RCA input and bluetooth went very good.
I have a pair of passive bookshelf speakers. Using it with 2.0 channel amp.
Want to upgrade to 2.1 amp first and get a subwoofer later after few months or try to build my own.
So my doubt is, will the 2.1 amp be able to provide low frequency(like 2.0 ch amp) for my existing speakers without SubW or will it stay diverted and miss the low frequency.
I buy passive subwoofers from thrift stores for $5-10. They sound great with bookshelf speakers. The extra bass punch makes a huge difference, even if the sub has only a 6" driver. I prefer 8-10" sub drivers, though. They are very common in thrift stores.
@@DanLimbach I think he’s asking about the frequency range of the two speaker outputs. Maybe it only outputs above a certain range. For example above 50Hz
I think that amp would kill the sound of your bookshelf speakers with a sub connected...that review demonstrated a silly weak sound when he turned the sub volume down.
Good review
Does the active sub vol distort at loud levels or not
Is it possible to connect both the passive and active sub at the same time to this amp? To get that 2.2.
Yes, it is.
Yes. Tested and confirmed.
@@roberthindle5146 do both units respond to the leftmost dials?
@@hide3reptiles365 Yes they do. I suspect one is just a pre-amped version of the other.
@@roberthindle5146 super.
Can I use this amp with the Klipsch R-12sw??
Hi ALS
I liked your video about this amp, it has good facilities but, to make full use of it (to play vinyl, CDs, etc.), this amp will need a pre-amp and as such is there a Fosi Audio pre-amp to go with it?
What do you mean it needs a preamp? The volume control is the preamp. It's an integrated amplifier, not a power amp, so it will work with and adjust the amplification level of any line level source such as your phone or CD player. Vinyl is the one exception, you would need a phono preamp if your turntable does not have one built in.
If you really want a preamp though, Fosi has options at fosiaudio.com/collections/preamplifier.
@@masonwilde1464
Hi Mr Wild
You asked, "What do you mean it needs a preamp?". Well, I was thinking that since this amp only has one set of RCA inputs then connecting a preamp to it, that has three additional RCA input including one for a turntable, would be a good idea.
So, that's what I meant by attaching a preamp.
I believe Fosi do have a pre-amp in their range.
I'm not sure what market that would fit into though. This product is very good but is really aimed at Spotify/iTunes users rather than a HiFi separates setup. That said, most turntables and other playback devices send pre-amped line-out anyway. Be aware that this only has one line-in.
better than aiyima b01?
Hola. Este amplificador servirá para escuchar dos parlantes jbl de 8 homios profesional
Depende del consumo de tus parlantes, este ampli llega a dar 50w por cada salida con una resistencia de 4 homs con 8 ha de dar unos 35
My banana plugs are too large to fit into the holes. Do you need special banana plugs? Anyone have any idea what's up? Thanks!
What brand of cables are you using? I think I need a 1 male to 2 male y splitter...that's the only way I can see this thing working...but the 2 cables that came with the sub...what are they for?
Does anyone know if this amplifier has input delay? I need it for djing
Has anyone experienced a popping sound when the unit is turned off? Is that normal? Thanks!
yes, mine does that.
Turn the volume dial to 0 before turning on.
I have one. Its great.
I don't like that it doesn't have any physical switch to choose which input. Not sure why they'd cheap out on something like that.
Me too. And there no any password to connect. Only becouse of this I'm bought Fosi Audio BT20C.
There is an similar device "AIYIMA TPA3116" with BT/AUX switch on front panel - unlike in BT20C and other Fosi Audio.
Suppose, there is a way to manually solder physical switch on front panel to disable BT.
@@RustamVID the way it's designed, there's no room maybe on the back.
@@TheLukemcdaniel , agree. They must improve their product line with this switch (with reviewing of the case dimensions or composition).
Switch on the front panel is preferable.
@@RustamVID I'd be okay with having the volume knob include a button that switched between. Maybe use that for pairing if you hold it down. They make rotary encoders like that
Good variant, there is cheap little chinese amps with it (also built on TPA3116D2, with funny design, but with horrible cases/sizes).
Just bought one of these off Amazon, and am now wondering if i can somehow connect it to my Home Theatre AVR/AMplifier so i can use it as a seperate power source and still take advantage of the signal processing abilities?
i wonder this aswell
You can do this if your avr has pre outs
What is the price
Can you connect stripped wires from speakers? I have two old speakers from a stereo that broke and the speakers connected to spring loaded connectors on the back, but I haven’t seen any amplifiers that have those.
yes
@@jackwaau I ended up buying a Pyle amp, it has both Bluetooth and cable connectors, so it works with most devises. And those old speakers sound great!
@@estuchedepeluche2212 I assume the Pyle in an op amp model. You may be able to swap out the op amp IC. It's a common upgrade for op amps and worth looking into.
where can i connect my pc?
Can I connect this to my laptop?
3.5mm to RCA inputs
How much
Everything is okay but it is only 50+50 watt 😢
thank you
does anyone know if the topspeakers can be more watt if you use a active sub?
I don’t think so but I’m currently waiting to receive a model from them called BL20C which has more wattage per channel and an active sub out only. Might be more what you need.
Yes, I got the BL20C and use with a powered sub which has its own volume and frequency controls. This thing is driving 2 x Jamo E680 speakers with 2x8” woofers, a 3.5” mid and 1” tweeter per speaker. Loads of volume and the bass and treble controls work very nicely.
@@johnpfeffer3933 yep, now that I have mine I can also confirm its a beast. 👍
are the spickers sony ss-l50?
this amplifier can play 3 way speaker with passive crossover?
Yes bro
How do I connect my Echo Dot to this?
You need to buy a 3.5 mm to rca cable. It's what I use on this amp.
How did you hook up the passive subwoofer using RCA?
its not connected on rca.. this sub works on amped subwoofer output.
You can't connect a pasive sub on RCA port.. RCA out is for active sub.
@@als-techreview hey, does sub vol and freq change the freq and vol of rca output too, or only the freq and vol of the amp output? I was planning to buy a bt30d and a bt20a, so i would have the 50w x2 for my high efficiency bookshelf stereo on my desk at my pc wich gets really loud even at 5w of power sp 50w would be deafening, and the 100w sub output set at mid-high freq to a speaker/subwoofer i put under a table wich creates high frequency bass of around 60-130hz, which resonates at the corner of the room where my pc setup is really loudly at 5 watts, that thing was insane, and if i play 100hz which is my room resonance frequency it was like 150db and painful way too loud , and put my 250w rms jbl sub in my closet wich creates loud deep bass of around 20-60hz wich id going to be powered by the bt20a bridged creating 200w max, i actually found out by playing with my other speaker/subwoofer which i powered with a 5w bluetooth amplifier and it sounded like a 500w rms car audio, so... , and the speaker/subwoofer is a 30w rms 190w max 5 inch car speaker, all because i put it in my closet lol, the second i open my closet, boom gone, no bass at all. But i have to be able to make it so that the subwoofer under the table is high freq and thr sub low freq, but since im hooking up the bt20a to the bt30d with rca, i need to know if changing the freq options on bt30d will affect the rca output going to the bt30a aswell not just the output of the bt30d, if yes what can i do? Also im kinda new to this stuff so does changing freq change like a range? Like for example 30-60hz to 60-90hz, or does it change like 0hz-30hz, to 0-60hz, which means i could actually use it the way i intended it to by making the bt30d sub high freq going to the speaker under the table and the rca going to the bt20a which i would put a low pass on, or is there something else i could do, like for example instead of the bt20a use an actual subwoofer amp thats 300w rms, but i dont know which one, which is probably what im going to do, but i again need to know if changing the freq to higher will remove the low freqs or just allow higher freq, i could use a splitter but then chaning volume on the bt30d wont affect the sub amp, so help what do i do? Is there something you can buy like a volume/gain knob which splits the cable going into the inouts of the amps? So that way i could control both amps? If yes i might be saved.
Can you bridge it for more sound ? Mine isn’t that loud .
no, all outputs are already bridge outputs.
What is the the cost per amp
it looks like you're in an interrogation room
oops wrong tab!
No Power... !?