Recent content by solderdude

It isn't lacking in the Austrian Audio Hi-X60 (which goes down to 5Hz) but only with a perfect seal. Another closed headphone that can do this is the OLLO S4R (if you can find one). Also most planar headphones can easily reach those low frequencies but might require an amplifier. The AA HiX60...

You could try a Schiit LISST :) :D

It is an AC transformer so it is possible you might hear a hum or 'rattle' when putting your ear against it or very close-by.

The reason for that is that it parallels 2 output stages and for DC-offset they kind of 'compete' with each other leading to a higher idle current. All of this to achieve a higher output current capability. This is product dependent. A second reason is the linear power supply regulation done...

Austrian Audio Hi-X60 may well be your best bet but has a somewhat high clamping force. The slight brightness it has for hi-fi listening may well be a great feature for instruments.

Yes better for sensitive IEMs because of the lower S/N ratio and lower gain setting. There weren't any IEMs in your list though.

Asgard 3 does not have any 'tube-like' aspects. Not in output resistance, nor in frequency response, nor in distortion profile and distortion level, it is as 'neutral' as can be. Power wise it is a sidegrade (basically the same) The question is what you mean with 'resolution' ? If it is meant...

Why 'move on' ? What do you want to change ? L30-II is a sidegrade when it comes to available max. output power/voltage (basically the same max. output power). L30-II is a sidegrade in sound quality and both are equally 'neutral' between 10Hz and 100kHz also the distortion spectrum does not...

You could state which brands you can easily get. Specs should be > 150mW in 32ohm and the amp should have 3x gain (+9dB) when using a dongle or phone headphone out as source. Gain is what you need. if you occasionally want to play really loud and EQ the bass up then an amplifier of > 0.8W (32...

The good thing about the P4 is the simple (old-fashion) tone control it has, 3 inputs, remote control, low distortion (which does not seem to be determined by the replaceable output buffer op-amp) and price.

That is my guess too. Tuning a closed headphone always has some trade-offs. One of the few manufacturers that have this part down to a T are Dan Clark and OLLO (S4R) which are both well tuned (provided a good seal is obtained).

Seems like an overly dark headphone. Below an SBAF measurement from Vtory (who does great reviews by the way) and uses SBAF-compensated EARS mini DSP measurements. So... best to use comparative measurements with known headphones. Below the Atrium Closed versus DCA Stealth This confirms Amir's...

Defective amp.... assuming the other ones are quiet (enough). Possibly needs a recap ? Amir's measurements also showed quite a lot of hum.

1: disconnect the inputs of the power amps (preferably short the RCA inputs). Connect the speakers. Is there any hum ? if no connect an RCA between both power amp inputs. 2: If there is no hum go to next step. 3: power the P4 and set the volume control to '0' and do not connect anything else to...