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as with just about every NHT
speaker I’ve ever seen, the Classics
are available with a high-gloss black
finish. However, my samples were
decked out in what NHT calls
Special Dark, a reddish-brown,
chocolaty hue. I’d definitely go for
that finish in my room. 

The room-shaking abilities of

the Classic Four’s 10-inch woofer
appeared to extend well into the
mid-30-hertz range in my large
home theater. I’d recommend
starting out subwooferless, and
then, if you want a little extra
kick, biamp the Classic Fours

with NHT’s X1 crossover ($350)
and A1 outboard amp ($400). If
that’s still not enough shake and
quake, pick up a Classic Ten or
Classic Twelve subwoofer ($600
and $850 each, respectively).
Obviously, if you’re planning to
assemble a system with the
smaller Classics, you’ll definitely
need one of the subs.

Hear This

As I said, NHT’s “house sound” has
changed from what I remember in
the past. At first, the treble seemed
a trifle reticent. But it’s all there,

even if reduced in level a bit, and
it’s exquisitely refined. The Classics’
dynamics are similarly easygoing,
with no strain or compression. Want
to crank Aerosmith loud enough to
make your ears threaten to bleed?
No problemo. The Classics love
volume the way a Dodge Viper
SRT10 loves speed. And I’ll admit
it: Playing music at near realistic
volume is a real kick. That’s rarely
possible with smaller speakers, but,
when I get to play with the big
guys, it’s tons of fun. 

The imaging is spectacular in its

scope and room-filling dimensions;
the Classic speakers’ image height,
width, and depth approach what
I’ve heard from the better electro-
static and flat-panel speakers. But
electrostatics can’t generally deliver
the Classic Fours’ dynamics and
room-shaking bass. Their broad
tonal palette is on par with some
speakers that sell for more than
double the Fours’ price.

On the other hand, I’m not so

sure about the Speaker Wizard’s
effect on the sound. I listened both
with and without it over the course
of a day, and my impression was
that the Wizard’s cooler tonal bal-
ance goosed the Classics’ detail;
but, to my ears, it was too much of
a good thing. That said, in a differ-
ent room or acoustic setting, the
Speaker Wizard might be the cat’s
meow. Try it; you may like it.

I’ve been into horror movies

lately, and I keep coming back to 

The

Ring

, the first and arguably the best

of the two installments. It’s super
creepy and chock-full of unsettling
noises and the sound of bubbling liq-
uids. But it’s the scene on the ferry-
boat that literally makes me jump
up from my couch. Naomi Watts
approaches a fellow passenger’s
horse, and the animal goes flat-
out berserk, breaks out of its stall,
gallops around the boat, and jumps

> Analog frequency response in Stereo96

mode:
–0.14 dB at 10 Hz; –0.04 dB at 20 Hz
–0.23 dB at 20 kHz; –21.00 dB at 50 kHz

> Analog frequency response with signal 

processing:
–0.14 dB at 10 Hz; –0.05 dB at 20 Hz
–0.22 dB at 20 kHz; –53.40 dB at 50 kHz

This chart shows the frequency response of the left
(aqua), center ( green), LFE ( purple), and left sur-
round (red) channels at the preamp outputs of the
Dolby Digital decoder. The left channel measures
–0.02 dB at 20 Hz and –0.12 dB at 20 kHz. The center
channel measures –0.03 dB at 20 Hz and 0.04 dB
at 20 kHz, and the left surround channel measures
–0.03 dB at 20 Hz and 0.04 dB at 20 kHz. The LFE
channel, normalized to the level at 40 Hz, is 0.01 dB
at 20 Hz, reaches the upper –3-dB point at 118 Hz,
and reaches the upper –6-dB point at 121 Hz.

Response from the multichannel input to the

main output measures –0.90 dB at 10 Hz, –0.33 dB
at 20 Hz, –0.15 dB at 20 kHz, and –1.01 dB at 50 kHz.
The analog THD+N is less than 0.041 percent at 1 kHz
with a 100-millivolt input and the volume control set
to 2. Crosstalk with a 100-mV input was –83.08 dB
left to right and –82.65 dB right to left. The signal-to-
noise ratio with a 100-mV input from 10 Hz to 24 kHz
with “A” weighting was –116.33 dBrA.

—MJP

NHT CONTROLLER PRE/PRO

AT A GLANCE

HT Labs Measures: NHT Controller Pre/Pro

> FEATURES

Processing Modes: 

Dolby: Digital 5.1, EX, Pro Logic

II,

Pro Logic IIx
DTS: DTS, ES, Neo:6, 96/24

THX Certification:

No

Audio D/A Converter: 

24-bit/192-kilohertz

Dimensions 

(H x W x D, inches):  5.75 x 17.25 x 17

Weight ( pounds): 

27

These listings are based on the man-
ufacturer’s stated specs; the HT Labs
box below indicates the gear’s perfor-
mance on our test bench.

CONNECTIONS

Inputs:

Video: 

HDMI ( 3), component video ( 3), 
S-video (4), composite video (6) 

Audio: 

Coaxial digital ( 3), optical digital 
( 3), 7.1-channel analog (1), stereo
analog (6) 

Outputs:

Video: 

HDMI (1), component video (1), 
S-video (2), composite video (2)

Audio: 

Optical digital (2), stereo analog 
(2), 7.1 preamp (1)

Additional:

NHTBus (1), RS-232 (1), 12-volt 
trigger ( 3), IR jack (2)

NUVISION NVX32HDU LCD HD MONITR

from the

test bench

NHT CLASSIC FOUR SPEAKER SYSTEM, CONTROLLER

PRE/PRO, AND POWER5 AMPLIFIER

Summary of Contents for Pre/Pro

Page 1: ...ment for the Controller surround processor and the Power5 and Power2 amplifiers NHT s engineers next rolled out the Classic Series speakers I have to admit the name initially threw me off track I ve admired NHT s speakers for 20 something years and the Classics sound was anything but classic NHT The brand s house sound was more forward and tonally lean the new Classic s sound is laid back with a f...

Page 2: ...en trace and Three surround red trace All passive loudspeakers were measured at a distance of 1 meter with a 2 83 volt input and scaled for display purposes The Four s listening window response a five point average of axial and 15 degree horizontal and vertical responses measures 0 75 2 67 deci bels from 200 hertz to 10 kilohertz The 3 dB point is at 42 Hz and the 6 dB point is at 35 Hz Impedance ...

Page 3: ...thought the Fours went for about 2 500 per pair but they re 1 800 And when you figure in the Fours deep bass capa bilities and the possible elimination of the need for a subwoofer 1 800 starts to look like an incredible deal The Classic Four is a four way design with a 0 75 inch dome tweeter a 2 inch dome midrange H I G H L I G H T S Controller Pre Pro and Power5 Amplifier Communicate with each ot...

Page 4: ...first and arguably the best of the two installments It s super creepy and chock full of unsettling noises and the sound of bubbling liq uids But it s the scene on the ferry boat that literally makes me jump up from my couch Naomi Watts approaches a fellow passenger s horse and the animal goes flat out berserk breaks out of its stall gallops around the boat and jumps Analog frequency response in St...

Page 5: ... 8 ohm loads 0 1 distortion at 257 1 watts 1 distortion at 299 1 watts Frequency response 0 29 dB at 10 Hz 0 09 dB at 20 Hz 0 27 dB at 20 kHz 0 68 dB at 50 kHz This graph shows that the Power5 s left amplifier channel with two channels driving 8 ohm loads reaches 0 1 percent distortion at 291 6 watts and 1 percent distortion at 349 5 watts Into 4 ohms the amplifier reaches 0 1 percent distortion a...

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