Do you have the specifications for 8ohm speaker loads?
The power should be around half of the 4 ohm rated.Do you have the specifications for 8ohm speaker loads?
Have you implemented your own input buffers? If so, do they have a "tone"? (sorry I could not resist using that word!)
Or is it Hypex standard buffers?
Holes - correct.Looks very good. Just a few questions.
Are the multiple unused countersunk holes in the base panel for the various modules (one base fits all?)
Is that recessed rounded edge rectangle for the Model No/Compliance/serial number stickers down the track?
Are the feet just stick-on rubber feet? If so, they are not really good enough in the long term IMO and certainly not at that price point. They slide sideways, get squashed and fall off leaving a sticky patch. They can also mark polished surfaces in the long term. For your production amplifiers, perhaps consider something more resilient and furniture friendly?
It will take xlr, trs or you can use an RCA to xlr/trs cable. Works fine with standard 2v rms output single ended RCA output dacs or pre ampsWill a standard XLR cable work with this or does it need an adapter?
Hi@March Audio Can you post dimensions? (The "Learn More" link on your website for the amps is not working. Chrome browser on Win10).
Yes, I'm travelling at the moment will post the details laterDo you have the specifications for 8ohm speaker loads?
it's actually higher than that. Looking at the other way round the power rating doesn't double when you half the impedance.The power should be around half of the 4 ohm rated.
I certainly see that as being the most popular choice, it will go loud enough for most and is what I put in my own dsp speakers.
I'm glad you chose the "sweet spot" of 250W into 4 ohms to send to @amirm for testing first! I'm very interested to see the results, as it could be a good match for my KEF LS50s (Yeah, I'm sure 120W into 4 ohms would be fine, but I like to know there is extra power there, especially since I listen almost exclusively to classical/opera with huge dynamic transients!)
OkDo you have the specifications for 8ohm speaker loads?
I have some questions on the P-701.
The module specifications state a peak power output of 700W at 4 ohms for 1% THD. The dissipation curves show around 50W going up as heat at that power level. Clearly it cannot dissipate that amount of heat for an extended period. Your case could not dissipate 50W on an ongoing basis without internal temps skyrocketing could it?
The continuous module rating specifies 100W. That is an enormous difference and one that needs some clarification IMO.
View attachment 19200
What is the continuous rating of your amplifier as a complete unit? The equivalent of the FTC ratings. (1/3 power preconditioning for 1 hour, then full power testing for 5 minutes)
"Section 432.2(a) of the Rule requires
that an amplifier’s rated continuous
power output per channel be
‘‘[m]easured with all associated
channels fully driven to rated per
channel power.’’ [Emphasis added.]
This continuous measurement
represents the maximum per-channel
power an amplifier can deliver over a
sustained period of time, which the
Rule defines as five minutes."
I'm kind of wanting some of these, and don't really need them. Hopefully lots of people will feel this way.
However I would ask a simple question. How representative is a continuous tone test compared to music? Music simply does not have the same rms level and is far more transient in nature. The continuous test is interesting from a technical POV, but not representative of real world usage where transient is far more relevant.
What's the difference between the MP series Hypex amps in the March boxes, vs the Nord boxes or the Rouge boxes that have been available for years?
https://www.nordacoustics.co.uk/nord-one-hypex-ncore-mpxxx-stereo-p
https://www.rougeaudiodesign.com/studio-n-4
So just the cases and the wiring? What's the difference in measured performance between the same module in your cases, and in theirs?