I would be extremely comfortable.21-22 C
My wife, however, is cold at 24 C (which is the temp that when I do nothing, I MAY not sweat [but probably will]).
So 23-24 (74 F) is the compromise.
I would be extremely comfortable.21-22 C
You would need to ask a Topping dealer for a replacement power supply, preferably on your continent, or directly from topping.Does anyone know where I could source a 52V 6.5A power supply (Topping PA7 Plus)?
The 48 V power supply will give you more power (a little less than twice), at least for loads at >4 Ω. Per the amplifier chip datasheet from TI, with 48 V power supply, the max power outputs (1% THD+N) are ~130 W for 8 Ω and ~230 W for 4 Ω [Edit 2]Looking at two different power supplies for a Fosi za3.
Mean Well
HEP-320-36
320 watts - 36 volts - 8.9amps
HEP-320-48
320 watts - 48 volts - 6.7amps
Both 320 watts. Would they both produce the same audio power? Would the 36 volt run cooler?
This is really a more general question of lower voltage and more amps or higher voltage with less amps.
I would advise against using HEP power supplies for audio amplifiers.Looking at two different power supplies for a Fosi za3.
Mean Well
HEP-320-36
320 watts - 36 volts - 8.9amps
HEP-320-48
320 watts - 48 volts - 6.7amps
Both 320 watts. Would they both produce the same audio power? Would the 36 volt run cooler?
This is really a more general question of lower voltage and more amps or higher voltage with less amps.
I have tried all of these power supplies and can't here any obvious difference in quality of sound or dynamic range. They all sound really good.I would advise against using HEP power supplies for audio amplifiers.
Firstly, these power supplies are specifically encapsulated for outdoor use and harsh environments, which can result in slightly higher temperatures. Secondly, they are industrial power supplies designed for a more consistent current draw and load.
The HRP series is much better suited; I've already written about this in another thread.
Mean Well HRP
The LRS series is good, proven, and affordable with an excellent price/performance ratio. I would always prefer something like that to a "brick."I used some LRS-350-N2-48 for PBTL amping (2 Ohm). Not sure about theroretical differs vs. the HRP series, but I'm very happy with the result and would choose them again without hesitation.
I adjusted them to 44V, a little less stress for the parts, a little cooler running, still loads of power.
Correcto mundo. I did some setups with 'gan' bricks for testing, I was not convinced about the delivered power. Specially the 5A bricks were very thin sounding in fullrange setup, even for minor sound levels there was simply not enough current delivered for lower frequencies.I would always prefer something like that to a "brick."
That's very clever. The SE series may be affordable, but it's significantly more trustworthy than any nameless SMPS or bricks.I noticed this commercial amp using a meanwwll supply
POWER AMPLIFIER 300D | Audio Phonique | High Performance Audio Products
www.audiophonique.com
Looks like a tidy build, I do not recognize the amp modules but I would conjecture they are tpa3255 based
Looks like it is 4999 EUR ex VATThat's very clever. The SE series may be affordable, but it's significantly more trustworthy than any nameless SMPS or bricks.
The power supply has a sealed housing; Mean Well has thoroughly tested it and already taken care of all the declarations of conformity and certifications.
Do you know the price of the Audio Phonique Classic Line 300D Stereo Power Amplifier?
More efficient and smaller isn't "buzz" though, it an actual real world advantage.Another buzzword 'feature' for marketing to bump the margin. It is unlikely to improve audio performance, but should be a bit more efficient and smaller.
Wow, so almost €6,000? That's quite something.Looks like it is 4999 EUR ex VAT
For something I pack regularly like a phone or laptop charger the premium for 'slightly smaller' might be worth it. For a static power brick I don't see the advantage. Similarly on efficiency - the benefit is probably at the upper end of output power rather than a fraction of it. For phone and laptop chargers that spend a lot of time near max output it may pay for itself, but for audio which spends most of its 'on' time at low but above standby levels it probably won't. Unless you're powering a Class A amp, but if you're doing that you obviously don't care about efficiency anyway.More efficient and smaller isn't "buzz" though, it an actual real world advantage.
These bricks are enormous and I already barely have room in the cable gutter underneath my desk. Halving the size is an enormous boon.For something I pack regularly like a phone or laptop charger the premium for 'slightly smaller' might be worth it. For a static power brick I don't see the advantage. Similarly on efficiency - the benefit is probably at the upper end of output power rather than a fraction of it. For phone and laptop chargers that spend a lot of time near max output it may pay for itself, but for audio which spends most of its 'on' time at low but above standby levels it probably won't. Unless you're powering a Class A amp, but if you're doing that you obviously don't care about efficiency anyway.