Nice list, Daniboun.
Are these plug and play or is other mods needed to try them? I have read where some opamps need a resistor or cap change to take full advantage.
Also, did you just swap these in the TPA3255 power amp or also swap in upstream boxes like a DAC or pre-amp?
Nice list, Daniboun.
Are these plug and play or is other mods needed to try them? I have read where some opamps need a resistor or cap change to take full advantage.
Also, did you just swap these in the TPA3255 power amp or also swap in upstream boxes like a DAC or pre-amp?
Hello All,
I'm new to the forum, so forgive me if there's a better place to post this.. But....
I'm looking at getting either the 3e SY-DAP2002 or the TPA3255-2CH-260w as an amplifier and plan on building a simple tube preamp to drive either option.
Which of the 2 following scenarios would you go with (if any)?
With the 3e AIO Amp the spec for input voltage isn't listed but some have said that it's 1V.
My plan is to use a -5db 1kHz tone to find the cleanest output from the tube pre,
then use a resistor to set it's maximum output and control actual volume using the AIO's knob.
Or...
With the TPA3255 board I've seen some say that the input sensitivity is 2.x V,
I would do the same test, figure out the best value for the pot to use in the pre
so that I never overdrive (even at max) and use that volume control.
Source is unkown for now, Sink(s) are Definitive Mythos Ones
Thanks in advance for your time.
73
I'm new to the forum, so forgive me if there's a better place to post this.. But....
I'm looking at getting either the 3e SY-DAP2002 or the TPA3255-2CH-260w as an amplifier and plan on building a simple tube preamp to drive either option.
Which of the 2 following scenarios would you go with (if any)?
With the 3e AIO Amp the spec for input voltage isn't listed but some have said that it's 1V.
My plan is to use a -5db 1kHz tone to find the cleanest output from the tube pre,
then use a resistor to set it's maximum output and control actual volume using the AIO's knob.
Or...
With the TPA3255 board I've seen some say that the input sensitivity is 2.x V,
I would do the same test, figure out the best value for the pot to use in the pre
so that I never overdrive (even at max) and use that volume control.
Source is unkown for now, Sink(s) are Definitive Mythos Ones
Thanks in advance for your time.
73
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Looking for a cheap & noise free 48v power supply to build up a multichannel TPA3255 amp (I'm using five jlelectronicsph modules). I may house the SMPS in a lower enclosure, and the amplifier modules in the upper section.
SMPS500R seems like the winner at the moment.
The KAYPW Switching Power Supply for LED lighting as suggested earlier, only seems to allow purchase of one per customer?
Any other suggestions for powering 5 modules?
SMPS500R seems like the winner at the moment.
The KAYPW Switching Power Supply for LED lighting as suggested earlier, only seems to allow purchase of one per customer?
Any other suggestions for powering 5 modules?
The Murata PQC250-48 is great as well, this SMPS PSU is used for the Bosc Gan modules.
They perform very well :
https://eu.mouser.com/ProductDetail/Murata-Power-Solutions/PQC250-48?qs=AQlKX63v8RtBSfNbDdd7aw==
They perform very well :
https://eu.mouser.com/ProductDetail/Murata-Power-Solutions/PQC250-48?qs=AQlKX63v8RtBSfNbDdd7aw==
An externally hosted image should be here but it was not working when we last tested it.
Murata PQC250 looks like a quality power supply. However has anyone ever deployed this SMPS with TPA3255?
The Bosc amps have very little capacitance on board. The JLE modules I'll be using include 4x UHW1J222MHD, giving 8,800uF of capacitance.
Max load capacitance of the Murata PQC250-48 I'm looking at is quoted to be 750µF.
I am concerned that the PQC250 won't start due to too much capacitance / overload high inrush current.
