I haven't had a listen (yet) and decided (as usual) to see what was under the bonnet (yes, weird maybe BUT) I like to see what nigh on £300 gets me in Brexit inflated UK Hi-Fi shops these days
Nice packaging..... you can't fault the attention to detail:
Nice looking aluminium enclosure:
But, (I hear you ask) what's under the bonnet? Well........ not much..... it's surface mount city guys. A superbly designed PCB, for sure, but nothing to write home about. NE5532 opamps, MJD32C / 31C transistors et al.
The surface mount element of the componentry essentially dictates that the LX2-HPA has not been engineered to last a lifetime (ie: be a serviceable unit) BUT the parts that have been fitted are generally good quality and should last a good few years.
Very interesting however when you consider how cramped for space the x-cans are, it's hard to believe they are the product of the same company!
But the acid test is - how does it sound?
As per always David, I'm not rushing to any conclusions. I'm trying it with a variety of headphones / music (on and off) and am getting a sonic feel for it. One thing I can say, It's still in my rig and I'm enjoying what it is delivering to my ears so that can only be a good sign
There is an "EPS" switch on the front panel, this stands for "Enhanced Power Supply". Musical Fidelity were going to produce an enhanced power supply for the LX2-HPA which would illuminate the blue EPS LED and unlock the full potential of the LX2-HPA but never got round to it.
In laymans terms.... they supplied a shitty unregulated 12V wallwart with the amp. The amp works better with a 24V supply and the "enhanced power supply" LED lights up when you feed it 24V DC The diode array senses 24V and illuminates the magical / hidden "EPS" LED (blue light). It will sense 24V DC whether it's raw 24V DC or Linear / regulated DC and the blue LPS LED will indicate that the full "magic" of the amp has been unlocked.
Erm..... no..... this is pretty much pandora's box territory and also unknown consequences when we open the box.... I haven't a clue what the "Musical Fidelity EPS power supply" would be (possibly a switched mode 24V generic Chinese shitfest) but will experiment with a proper linear / regulated power supply and see if that unlocks the full potential of the LX2-HPA.
MF are no more, their (Pro-ject Audio / Henley Audio) distributor wrote this to me:
The external power supply was something that musical fidelity had planned but never brought into production. As you know, MF was purchased by Pro-Ject last year and we currently have no plans to add a power supply option to this series .
I've just purchased one of these Headphone Amps and I am very impressed with the sound on initial listening. I came across this thread and wondered if there was any follow up in respect of trying a 24V linear / Regulated PSU with it.