Hi,
I am a complete newbie in this audio stuff, so please sorry me if I say something stupid.
I have a JBL flip 4 and when I connect my accoustic guitar to it, the sound is very good and has a good volume. My accoustic guitar has a pretty common 9v battery pre amplifier. However when I connect my guitar to the JBL flip, the sound is reaaaaly low, almost no sound! Of course, my guitar has no 9v battery connect to it and no pre amplifier.
I cannot afford an amplifier so I was wondering if I could use something like PAM8610 to connect to my JBL flip 4? It's a very cheap amplifier and I see people all around the internet connecting this 2x10W board to speakers of many sizes. However I dont know if I can connect it to my JBL Flip 4, I am afraid of damaging it.
You see: I usually connect my accoustic guitar and my smartphone to the JBL flip 4 using the input jack (p2). Does using an amplifier will increase the voltage in the p2 input jack? Or it will only chnge the current?
Thank you so much
I am a complete newbie in this audio stuff, so please sorry me if I say something stupid.
I have a JBL flip 4 and when I connect my accoustic guitar to it, the sound is very good and has a good volume. My accoustic guitar has a pretty common 9v battery pre amplifier. However when I connect my guitar to the JBL flip, the sound is reaaaaly low, almost no sound! Of course, my guitar has no 9v battery connect to it and no pre amplifier.
I cannot afford an amplifier so I was wondering if I could use something like PAM8610 to connect to my JBL flip 4? It's a very cheap amplifier and I see people all around the internet connecting this 2x10W board to speakers of many sizes. However I dont know if I can connect it to my JBL Flip 4, I am afraid of damaging it.
You see: I usually connect my accoustic guitar and my smartphone to the JBL flip 4 using the input jack (p2). Does using an amplifier will increase the voltage in the p2 input jack? Or it will only chnge the current?
Thank you so much
Well, you partially answered your own question there.
Your acoustic guitar has a preamp inside it, which drives the Flip's input just fine.
Your "guitar", on the other hand (i'm assuming electric guitar, with passive pickups?), has a relatively high input impedance (think of it as a resistor in series with the output jack), and with the relatively low input impedance of the Flip, forms a divider which lowers the level of the signal.
You would need a high-impedance buffer (or perhaps a preamp with some amount of gain as well), between the electric guitar and the Flip.
What you most definitely NOT want to do, is use a power amplifier for that job. Not only do the PAM-series have bridged outputs, but they also have low-ish input impedances, AND likely higher output noise than a simple buffer / preamp would have.
Your acoustic guitar has a preamp inside it, which drives the Flip's input just fine.
Your "guitar", on the other hand (i'm assuming electric guitar, with passive pickups?), has a relatively high input impedance (think of it as a resistor in series with the output jack), and with the relatively low input impedance of the Flip, forms a divider which lowers the level of the signal.
You would need a high-impedance buffer (or perhaps a preamp with some amount of gain as well), between the electric guitar and the Flip.
What you most definitely NOT want to do, is use a power amplifier for that job. Not only do the PAM-series have bridged outputs, but they also have low-ish input impedances, AND likely higher output noise than a simple buffer / preamp would have.
@Khron thank you so much!
You are right, my electric guitar is a cheap one with passive pickups! I understood everything your said (I am a mechanical engineer) regarding resistor/impedance. But I still didnt understand why I cant connect a PAM to a JBL flip speaker, why would the PAM would damage the JBL speaker?
Also, you point me to buy a "high-impedance buffer". Do you know a common cheap brand that I can look here in brazil and check if it exists on our market?
I dont care about noise because I am just a beginner, I would like something cheap and easy to find at this moment.
note: unfortunatelly I already bought the PAM8610 because I just saw your message today, so do you think there might be a risk of damaging my JBL flip using PAM8610 with my guitar and a 12v source to power the PAM8610 ?
You are right, my electric guitar is a cheap one with passive pickups! I understood everything your said (I am a mechanical engineer) regarding resistor/impedance. But I still didnt understand why I cant connect a PAM to a JBL flip speaker, why would the PAM would damage the JBL speaker?
Also, you point me to buy a "high-impedance buffer". Do you know a common cheap brand that I can look here in brazil and check if it exists on our market?
I dont care about noise because I am just a beginner, I would like something cheap and easy to find at this moment.
note: unfortunatelly I already bought the PAM8610 because I just saw your message today, so do you think there might be a risk of damaging my JBL flip using PAM8610 with my guitar and a 12v source to power the PAM8610 ?
Damaging the Flip input? That's a big "maybe". Power amplifiers (like the PAM's) are meant to drive speakers, not line-level inputs.
Best case, it might work fine; medium case, you'll get out-of-phase sound between the stereo speakers of the Flip (depending how you connect the PAM outputs to the Flip input); worst case, you'll toast whatever opamp is connected to the input jack of the Flip.
PS: If DIY'ing with some cheap parts is an option - Project 214
Best case, it might work fine; medium case, you'll get out-of-phase sound between the stereo speakers of the Flip (depending how you connect the PAM outputs to the Flip input); worst case, you'll toast whatever opamp is connected to the input jack of the Flip.
PS: If DIY'ing with some cheap parts is an option - Project 214