Whoozzem
Novice Member
Hi,
I have a subwoofer which was originally active but is notorious for amplifier board faults, so back when it's internal amplifier went for a second time (a year after getting it repaired) I ripped its' internal amplifier out and made the subwoofer passive. Now I have tested it both through a car amplifier (JBL GTO 6000) and my basic USB amplified headphone soundcard (Asus Spitfire) so I know that provided the amplification is there it can work, though this was a few years ago and not used for any length of time.
The receiver I bought for the subwoofer (and speakers - but they're running without issue) was a Denon 1910 however at the time of purchase I didn't realise that the receiver only provided non-amplified output to the subwoofer so I'm wondering what the best way of getting the subwoofer working would be?
I've looked online and the subwoofer is rated at 210W RMS 8 ohm. I don't know if this halves, doubles or does nothing to the subwoofer but currently I have its' two positivie/negative terminals wired out to just one single cable (and this is how it was with the car amplifier and USB soundcard) . Looking online it's described as being a three ringed subwoofer? but only appears to have the two sets of wires connected - unless when I made it passive I broke off a third pair, it has been many years ago since I converted it.
Further online searches have come up with the following three options for powering the subwoofer with the receiver and I'd like someone to clarify things for me as I know next to nothing about sound setup etc.
Firstly if I understand correctly, to convert from RMS back to W would be 210/0.707 so this subwoofer would want a single 300W amplifier for maximum performance, is this correct?
Secondly, I did find an old site where someone with this speaker system/subwoofer set up their Denon (a 1610) by utilising the Front A+B connection and passing low frequencies through to the subwoofer plugged into Front B.
The manual for my 1910 says that when using Front A+B together never to use anything with an impedence of under 12 ohm because otherwise the system will either overheat or enter protection mode. The subwoofer and speakers are 8ohm so I presume this is ruled out even though someone did this with the other Denon model?
Thirdly I did debate buying a smaller powered amplifier and I did see a 70W RMS (2x35) amplifier in my (now much restricted) budget and I wondered is there any danger/risk to either the amplifier or subwoofer if I used this lower RMS rated amplifier to power the subwoofer, or would it just be quieter?
Thanks.,
I have a subwoofer which was originally active but is notorious for amplifier board faults, so back when it's internal amplifier went for a second time (a year after getting it repaired) I ripped its' internal amplifier out and made the subwoofer passive. Now I have tested it both through a car amplifier (JBL GTO 6000) and my basic USB amplified headphone soundcard (Asus Spitfire) so I know that provided the amplification is there it can work, though this was a few years ago and not used for any length of time.
The receiver I bought for the subwoofer (and speakers - but they're running without issue) was a Denon 1910 however at the time of purchase I didn't realise that the receiver only provided non-amplified output to the subwoofer so I'm wondering what the best way of getting the subwoofer working would be?
I've looked online and the subwoofer is rated at 210W RMS 8 ohm. I don't know if this halves, doubles or does nothing to the subwoofer but currently I have its' two positivie/negative terminals wired out to just one single cable (and this is how it was with the car amplifier and USB soundcard) . Looking online it's described as being a three ringed subwoofer? but only appears to have the two sets of wires connected - unless when I made it passive I broke off a third pair, it has been many years ago since I converted it.
Further online searches have come up with the following three options for powering the subwoofer with the receiver and I'd like someone to clarify things for me as I know next to nothing about sound setup etc.
Firstly if I understand correctly, to convert from RMS back to W would be 210/0.707 so this subwoofer would want a single 300W amplifier for maximum performance, is this correct?
Secondly, I did find an old site where someone with this speaker system/subwoofer set up their Denon (a 1610) by utilising the Front A+B connection and passing low frequencies through to the subwoofer plugged into Front B.
The manual for my 1910 says that when using Front A+B together never to use anything with an impedence of under 12 ohm because otherwise the system will either overheat or enter protection mode. The subwoofer and speakers are 8ohm so I presume this is ruled out even though someone did this with the other Denon model?
Thirdly I did debate buying a smaller powered amplifier and I did see a 70W RMS (2x35) amplifier in my (now much restricted) budget and I wondered is there any danger/risk to either the amplifier or subwoofer if I used this lower RMS rated amplifier to power the subwoofer, or would it just be quieter?
Thanks.,