About to start my first major DIY amp project. I've done some chip amps, tripath, etc. and want to make a class A amplifier to match with my morel renaissance duets (which are absolutely fantastic, btw).
At first, I was looking at the f5, and then started thinking about F5T (but I don't have the skill to deal with troubleshooting advanced problems if there are issues with the prototype boards).
The Aleph J also came to mind.
My listening room is the living room, which is rather spacious, so it wouldn't be very low listening levels / near field.
Here are the specs:
Frequency Response 42 - 21,000 Hz ±3dB Impedance 6.5 Ohms
Power Handling 150 watts RMS Sensitivity 89 dB SPL
I believe this is my first post, even though I've been reading through these forums for quite some time. Really looking forward to feedback on this. Hope to post the entirety of the build on here.
At first, I was looking at the f5, and then started thinking about F5T (but I don't have the skill to deal with troubleshooting advanced problems if there are issues with the prototype boards).
The Aleph J also came to mind.
My listening room is the living room, which is rather spacious, so it wouldn't be very low listening levels / near field.
Here are the specs:
Frequency Response 42 - 21,000 Hz ±3dB Impedance 6.5 Ohms
Power Handling 150 watts RMS Sensitivity 89 dB SPL
I believe this is my first post, even though I've been reading through these forums for quite some time. Really looking forward to feedback on this. Hope to post the entirety of the build on here.
The most straightforward way to have lots of power is to make a pair of F4, and one of the specific preamps for it - ZenMod's 'Pumpkin' or SY's 'ImPasse'
Both of those preamps have the ability to swing lots and lots of volts across balanced outputs, enough to clip an F4 running as a balanced monoblock.
An F4, running this way will produce 100W into an 8ohm speaker, more if the speaker is lower impedance. So two of them will be 100WPC. 😎
Whatever you choose, an illustrated build log is always warmly welcomed. 🙂 🙂 🙂
Both of those preamps have the ability to swing lots and lots of volts across balanced outputs, enough to clip an F4 running as a balanced monoblock.
An F4, running this way will produce 100W into an 8ohm speaker, more if the speaker is lower impedance. So two of them will be 100WPC. 😎
Whatever you choose, an illustrated build log is always warmly welcomed. 🙂 🙂 🙂
I already have a db systems DB-1A preamp and matching MC preamp that I am very fond of.
Would it be necessary to build the separate preamp?
Do I understand correctly that you are suggesting f4 mono-blocks??
The price of building two (the right way, I'd like to use the kits, cases, from diyaudio to support forum and use high quality parts) might be prohibitive for me (broke $#@% student).
Would it be necessary to build the separate preamp?
Do I understand correctly that you are suggesting f4 mono-blocks??
The price of building two (the right way, I'd like to use the kits, cases, from diyaudio to support forum and use high quality parts) might be prohibitive for me (broke $#@% student).
I have a db-1a preamp by db systems, which I like a lot. Would this be sufficient?
I'm hoping to keep this relatively cheap. Since I'm new I want to use the diyaudio supplied casing, pcb, etc. to minimize issues and more easily follow build directions. Building two f4 monoblocks might be out of my price-range for the build.
Should I wait for f5 turbo to get to a more stabilized version?
I'm hoping to keep this relatively cheap. Since I'm new I want to use the diyaudio supplied casing, pcb, etc. to minimize issues and more easily follow build directions. Building two f4 monoblocks might be out of my price-range for the build.
Should I wait for f5 turbo to get to a more stabilized version?
Thanks for the response. I'm humbled.
This looks like a great kit. How many watts can I get out of the 24V??
From the little I understand, wattage can be misleading and even arbitrary depending on other factors. So, I'm not really sure if i'm asking the right questions.
If you think it can yield adequate results, i'll defer to your wisdom.
Even if not, I'm sure they might be suitable to another purpose and i'll build something like the F5-T down the line.
Also, the rev 3 F5's seem to have come out, and aren't littered with warning labels.. is it a safe bet to just go for broke on the F5T?
This looks like a great kit. How many watts can I get out of the 24V??
From the little I understand, wattage can be misleading and even arbitrary depending on other factors. So, I'm not really sure if i'm asking the right questions.
If you think it can yield adequate results, i'll defer to your wisdom.
Even if not, I'm sure they might be suitable to another purpose and i'll build something like the F5-T down the line.
Also, the rev 3 F5's seem to have come out, and aren't littered with warning labels.. is it a safe bet to just go for broke on the F5T?
is there some kind of negative consequence to that? I would imagine you thought less voltage ideal?
oddly enough i have 2 meanwell 24V power supplies in the closet. I'm sure they will match nicely. Thanks for your help. I'll report back progress.
great
I will also be checking back on your experience with a 24V ACA. i will also be doing this one on top of an F5 in a biamped system (thus the rail voltage from a shared PS). btw this is ZenMod's bad influence.
btw you should have an idea off your existing amps about how much max power you need with your speakers in your room and scale just enough over that. I recently made my first Aclass (Aleph30) and boy you get to realize these amps run hot (!) especially into loads under 8 ohm. moreover, even fan cooled they are big and heavy. so you may want to take it easy when thinking about scaling up.
I only wonder if Papa's 24V/7W estimate applies to your (and mine) load close to 6ohm or to the "nominal" 8ohm? (mind you, my application should be more like 95dB/1W1m so for me 7W for mid/high is plenty
.
I will also be checking back on your experience with a 24V ACA. i will also be doing this one on top of an F5 in a biamped system (thus the rail voltage from a shared PS). btw this is ZenMod's bad influence.
btw you should have an idea off your existing amps about how much max power you need with your speakers in your room and scale just enough over that. I recently made my first Aclass (Aleph30) and boy you get to realize these amps run hot (!) especially into loads under 8 ohm. moreover, even fan cooled they are big and heavy. so you may want to take it easy when thinking about scaling up.
I only wonder if Papa's 24V/7W estimate applies to your (and mine) load close to 6ohm or to the "nominal" 8ohm? (mind you, my application should be more like 95dB/1W1m so for me 7W for mid/high is plenty
.
Can someone recommend an ideal 24V power supply kit for these? Amperage? I want to pull all that I can out of them.
24V Power Supply
I'm going to use these: 24V, 2.5 amps. Should get the job done.
KPL-060M: JAMECO RELIAPRO: Power Supplies & Wall Adapters
I'm going to use these: 24V, 2.5 amps. Should get the job done.
KPL-060M: JAMECO RELIAPRO: Power Supplies & Wall Adapters
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