Hi, the 41Hz forum has been down some time so I cannot ask there.
I want to run an amp6 and an amp9 of one power supply (actually one per speaker so will buy to PSUs). The following looks good and I want to get something from Mouser since I am putting in an order for other stuff from them;
RD-125-1224 Mean Well | Mouser
Am I missing anything obvious? It should be suitable for a decent audio system right!?
- 12V and 24V both 3.7A, 133W, enough current for my needs I believe (NaoNote).
Thanks
I want to run an amp6 and an amp9 of one power supply (actually one per speaker so will buy to PSUs). The following looks good and I want to get something from Mouser since I am putting in an order for other stuff from them;
RD-125-1224 Mean Well | Mouser
Am I missing anything obvious? It should be suitable for a decent audio system right!?
- 12V and 24V both 3.7A, 133W, enough current for my needs I believe (NaoNote).
Thanks
Hi SAC,
First off I’m not an elec engineer, but I do play with the 41hz amps / audio stuff as a hobby. My thoughts are below, if anyone spots errors with what I have said please correct & keep me honest
SMPS power supplies do work well with the amp9 (I have an amp9, but not an amp6, however I would assume the same to be true for the amp6).
Power wise, I have an amp9 hooked up to a 24vDC (10AMP) SMPS and this works well and delivers a theoretical max of 240W. Given that the amp9 can deliver 200W (peak i.e. once in a blue moon) this power supply is a bit over specked. I did this to get the most from the amp and ensure no power issues. Also the SMPS is likely to run cooler although this is generally not much of a problem.
If your running the Amp 9 on 24vDC @ 3.4Amps this gives a max output of 85Watts which is about half of what the amp is capable of (also subject to the ohm rating of your speakers). So I would expect this to work ok at lower volumes but it may struggle with louder volumes or heavy passages of music, depends upon your usage really.
It might be worth trying a laptop PSU first as these tend to be around 20vDC with 3 amps output. Get one of these and try the amp9 on it. If it works for your needs then running at 24vDC @3.4 amps will be fine.
The other possibility would be to use a torroidal transformer with twin secondary’s. I am assuming that your amp6 version has the PSU- (rectifier & large capacitors etc) I know you can get the transformers made up to your exact specs (I used Aktualno?ci - TOROIDY.PL Transformatory Toroidalne Producent, Audio, Separacyjne, Trójfazowe, 230/110V, 110/230V, Na zamówienie to make me one for my TruePath) but this may be a more expensive option.
So in Summary
Yep the PSU would most likely work at low to mid volumes
Best way is to try a laptop PUS on the amp9 to see if that works for you
Alternative is a custom made torriodal transformer with twin secondaries designed to the deliver the 12vAC (amp6) & 18vAC (amp9)
Or one with the same output over the twin secondary’s like this (MCFE120/15 - MULTICOMP - TRANSFORMER, 120VA, 2 X 15V | Farnell UK)
What is your setup ? One amp6 and one amp9 to drive two speakers (are they a three way unit ?) Could you just use the amp9 as it is a four channel amp or were you going to bridge it to x2 channel?
I suggest you try the laptop PSU first
First off I’m not an elec engineer, but I do play with the 41hz amps / audio stuff as a hobby. My thoughts are below, if anyone spots errors with what I have said please correct & keep me honest
SMPS power supplies do work well with the amp9 (I have an amp9, but not an amp6, however I would assume the same to be true for the amp6).
Power wise, I have an amp9 hooked up to a 24vDC (10AMP) SMPS and this works well and delivers a theoretical max of 240W. Given that the amp9 can deliver 200W (peak i.e. once in a blue moon) this power supply is a bit over specked. I did this to get the most from the amp and ensure no power issues. Also the SMPS is likely to run cooler although this is generally not much of a problem.
If your running the Amp 9 on 24vDC @ 3.4Amps this gives a max output of 85Watts which is about half of what the amp is capable of (also subject to the ohm rating of your speakers). So I would expect this to work ok at lower volumes but it may struggle with louder volumes or heavy passages of music, depends upon your usage really.
It might be worth trying a laptop PSU first as these tend to be around 20vDC with 3 amps output. Get one of these and try the amp9 on it. If it works for your needs then running at 24vDC @3.4 amps will be fine.
The other possibility would be to use a torroidal transformer with twin secondary’s. I am assuming that your amp6 version has the PSU- (rectifier & large capacitors etc) I know you can get the transformers made up to your exact specs (I used Aktualno?ci - TOROIDY.PL Transformatory Toroidalne Producent, Audio, Separacyjne, Trójfazowe, 230/110V, 110/230V, Na zamówienie to make me one for my TruePath) but this may be a more expensive option.
So in Summary
Yep the PSU would most likely work at low to mid volumes
Best way is to try a laptop PUS on the amp9 to see if that works for you
Alternative is a custom made torriodal transformer with twin secondaries designed to the deliver the 12vAC (amp6) & 18vAC (amp9)
Or one with the same output over the twin secondary’s like this (MCFE120/15 - MULTICOMP - TRANSFORMER, 120VA, 2 X 15V | Farnell UK)
What is your setup ? One amp6 and one amp9 to drive two speakers (are they a three way unit ?) Could you just use the amp9 as it is a four channel amp or were you going to bridge it to x2 channel?
I suggest you try the laptop PSU first
Hi Nero, thanks for your input, some good points for me to consider. I am in no rush since I already use my system as follows;
4way active - PLLXO - 2Xalpha15a (8+8ohm) in parallel, 8", 3", tweeter
One amp9 per speaker
2XLaptop supply 24V 6A
I do not go very loud with neighbours to think of and it is a small living room. I was looking to take advantage of the amp6's supposedly superior treble reproduction, and to get greater control over the woofers, especially if I add a third 15" woofer (4ohm) I have.
amp9 - 15"
amp9 two channels - 15"+15"
amp9 - 8"
amp6 - 3"
amp6 - tweeter
I have spare amp6 amps so thought it may be worth the effort/cost - but I will delay this for the mean time.
I am not confident with wiring torroids and do not like the energy inefficiency so will skip that I expect.
4way active - PLLXO - 2Xalpha15a (8+8ohm) in parallel, 8", 3", tweeter
One amp9 per speaker
2XLaptop supply 24V 6A
I do not go very loud with neighbours to think of and it is a small living room. I was looking to take advantage of the amp6's supposedly superior treble reproduction, and to get greater control over the woofers, especially if I add a third 15" woofer (4ohm) I have.
amp9 - 15"
amp9 two channels - 15"+15"
amp9 - 8"
amp6 - 3"
amp6 - tweeter
I have spare amp6 amps so thought it may be worth the effort/cost - but I will delay this for the mean time.
I am not confident with wiring torroids and do not like the energy inefficiency so will skip that I expect.
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