Simaudio N HT's Xd User Manual

Page 11

slight bump at 2kHz is gone, and the

top two octaves are between 1–3dB

higher in level.

The response

now falls between

±1.25dB limits all

the way from

80Hz to 16kHz,

which is simply

extraordinary in-

room perfor-

mance. Extraordi-

nary!

S u m m i n g

Up: Art Dudley

recently wrote

that the true test

of a component

under review is

how you feel

when it comes time to return it to

the manufacturer. In the case of

NHT’s Xd, I felt bad about having to

send it back. It did almost all of what

I want an amp and speakers to do,

with very little downside. However, I

have five pairs of speakers on deck

for review and I have to move on.

In the meantime, the revised

crossover software, in conjunction

with stereo subwoofers, has taken a

relatively affordable, excellent-

sounding loudspeaker system and

made it almost beyond criticism. It’s

true that the NHT Xd system still

lacks ultimate dynamic range, but

there’s only so much you can ask in

terms of ultimate loudness from a

pair of drive-units with a radiating

diameter of just 3". Highly recom-

mended.

—John Atkinson

F O L L O W - U P

Fig.3 NHT Xd system,

⁄

-octave, spatially averaged response in JA’s listening

room with original crossover filters (blue) and revised crossover filters
(red).

Posted with permission from the January 2006 issue of

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