Integrated amp recommendations for harbeth 30.2 XD


Hi - I'm currently using a Rega Aethos integrated amp with my 30.2 XD speakers.  I'd appreciate your comments / recommendation for a better integrated amp.  Some friends suggest that I consider the Luxman 509II or a Moon integrated.   
Your comments are very welcome!
newton
AKG_CA, thanks for the update. Surely useful to know! I'm glad the cable experiments have managed to elevate the Harbeth 30.2 XD to a higher level of performance.
LFD NCSE Mk 1

BACKSTORY:

I’ve been in and out of the industry since 1976 as a specialist high-end retailer. I was for some years [until I resigned the franchise earlier this year] an official by which I mean full-time] :FD Audio retailer.

SCOPE:

This piece focus on my experiences as both a retailer and home-user of the NCSE I, NCESE II and NCSE III. Future posts, if I can find the time, might include my observations re other LFD Audio electronics.

EXPLANATORY NOTE:

I am going to focus on the ‘upgrade’ path from NCSE 1 > NCSE II … but not NCSE II > NCSE III because I found the differences to be slight and unworthy of the price to change!

SOUCES AND SPEAKERS.

For continuity I always used a Sony CDP XE-530 with LFD Grainless interconnects and LFD Hybrid Ribbon Type R speakers cables. I didn’t use vinyl nor FM.

Speak pairs used included the superb Vandersteen 2Ce Signatures, Burton Somervell floor standers and my JPW Minims … an ebay bargain @ £25

A LEVEL PLAYING FIELD:

During such adventures I ALWAYS use a sound pressure meter [usually around £30] too ensure that everything is heard at the same volume.

MY REFERENCE:

XTZ CD and amps

AN INVALUABLE RETHINK:

At first, I was only interested in finding units which equalled or exceeded the NCSE 1’s performance without focus on cost! Then I thought, well why not look for pre-owned gear which closely but not entirely mimicked its performance at the lowest possible price? And that’s precisely what I did.

NCSE I versus the pre-owned rest part #1

Quad 44 + Quad 405

On the day, at my usual listening volume I could barely tell the difference. A higher volumes, the Quad pair was less shrill. At lower volumes, bass was lumpy, lacking definition and agility. However …

The NCSE 1 was sold for £1,150 and the Quad cost me £330 and therefore on the basis of overall satisfaction – in this specific context – the Quad combo was the winner.

That said, I knew instinctively that a more satisfactory outcome could be achieved for not much mire money, if I was patient.

CONCLUSIONS:

The NCSE 1 is a superb amp within its limitations

It has battleship build quality and very rare on the auction sites.

To date, 100% reliability other than the occasional volume control replacement under warranty.

You can get very close to the sound for far less money than the typical asking price!


Yet to meet a speaker that a Moon by Simaudio 240i, 250i or 340i did not like. 
In other words you can not go wrong with these fine Canadian machines.
Wonder how the Harbeth’s pair up with the Musical Fidelity Nu-Vista product line?