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Klipsch THX Ultra2 Loudspeaker System Review

by May 16, 2006
Klipsch THX Ultra2

Klipsch THX Ultra2

  • Product Name: THX Ultra2
  • Manufacturer: Klipsch
  • Performance Rating: StarStarStarStarhalf-star
  • Value Rating: StarStarStarStarStar
  • Review Date: May 16, 2006 20:00
  • MSRP: $ 10,750
  • Buy Now

 

KL-650-THX LCR Speaker

Sensitivity (2.83 V/1m, averaged, from 300 to 3000 Hz):
Rated Impedance:
Frequency Response (- 3 dB):
Bass Principle:
HF Driver:


LF Driver:


Crossover frequency:
Connection:

Enclosure Material:
Finish:

Product Weight:
Cabinet Dimensions (H x W x D):

 

97.0 dB spl
8 Ω
48 Hz  to 20 kHz ±3 dB
Bass reflex; front-firing port
(1) 2.5cm (1") titanium dome compression driver. Magnetically shielded. Coupled with rectangular 90º x 60º Tractrix horn.
(2) 16.5cm (6.5”) Cerametallic™-cone, magnetically shielded, cast aluminum frame woofers.
1.40 kHz
2 sets of binding post speaker terminals; bi-wirable
MDF
Galaxy Black cabinet. Black anodized aluminum fascia.
17.7 kg (39 lbs)
38.1cm x 43.2cm x 31.8cm (w/ grille)
(15” x 17” x 12.5”)

 KL-525-THX Back Surround Speaker

Sensitivity (2.83 V/1m, averaged, from 300 to 3000 Hz):
Rated Impedance:
Frequency Response (- 3 dB):
Bass Principle:
HF Driver:


 LF Driver:

Crossover frequency:
Connection:
Enclosure Material:
Finish:

Product We
ight:
Cabinet Dimensions (H x W x D):

 

 

94.0 dB spl
8 Ω
80 Hz  to 20 kHz ± 3 dB
Totally enclosed box
(1) 2.5cm (1") titanium dome compression driver.
Magnetically shielded. Coupled with rectangular
90º x 60º Tractrix horn.
(2) 13.3cm (5.25”) Cerametallic™-cone, magnetically shielded, cast aluminum frame woofers.
1.50 kHz
2 sets of binding post speaker terminals; bi-wirable
MDF
Galaxy Black cabinet. Black anodized aluminum fascia.
14.5 kg (32 lbs)
32.4cm x 40.6cm x 31.8cm (w\ grille)
(12.75” x 16.0” x 12.50”)

 KS-525-THX Side Surround Speaker

Sensitivity (2.83 V/1m, averaged, from 300 to 3000 Hz):
Rated Impedance:
Frequency Response (- 3 dB):
Bass Principle:
HF Driver: 



LF Driver:


 Crossover frequency:
Connection:

Enclosure Material:
Finish:

Product Weight:
Cabinet Dimensions (H x W x D):

 

 

96.0 dB spl
8 Ω
80 Hz  to 20 kHz  ± 3dB
Totally enclosed box
(2) 2.5cm (1") titanium dome compression drivers with neodymium magnet structures. Magnetically shielded and coupled to 90° x 60° Tractrix® Horns in a WDST™ Array.
(2) 13.3cm (5.25”) Cerametallic™-cone, magnetically shielded, cast aluminum frame woofers.
2.10 kHz
2 sets of binding post speaker terminals; bi-wirable
MDF
Galaxy Black cabinet. Black anodized aluminum fascia.
9.1 kg (20 lbs) per pair
35cm x 33cm x 21.6cm
(13.75” x 13.0” x 8.5”)

 

 KW-120-THX Subwoofer

Rated Impedance:
Frequency Response (- 3 dB):
Bass Principle:
LF Driver:

Crossover frequency:
Connection:
Enclosure Material:
Finish:

Product Weight:
Cabinet Dimensions (H x W x D):

 

 

8 Ω
20 Hz  to 200 Hz
Bass reflex; front-firing port
30.5cm  (12") Cerametallic™ cone, cast aluminum frame driver
NA
Speakon NL2 connector
MDF
Galaxy Black cabinet. Black anodized aluminum fascia.
36.0 kg (80.0 lbs)
51.4cm x 45.1cm x 45.1cm (w\ grille)
(20.25” x 17.75” x 17.75”)

 

 KA-1000-THX Amplifier

Type:
Frequency response:
FTC Rated Power:

Power Control:
Phase Control:
Equalization/Response Compensation:

THX Function:
Crossover Function:
Gain Control:
Connection:

Cooling:
Finish:

Product Weight:
Cabinet Dimensions (H x W x D):

 



2-channel, Class D digital power amplifier
20Hz-1kHz +0/-3dB
500W into 8 ohms, 1000W into 4 ohms, 20Hz-1kHz
Master and Auto-on/off
Continuously variable, 0º - 180º
Boundary-gain compensation (LF extension adjustment)
Switchable, On/off
Continuously variable, 40Hz – 120 Hz
Continuously variable
RCA  line-level input/output,
Speakon NL2 connector speaker level output.
Passive
Galaxy Black cabinet. Black anodized aluminum fascia.
12.3 kg (27.0 lbs)
12.1 cm 44.5 cm 31.1 cm
(4.75” x 17.5” x 12.25”)

Pros

  • Tonally neutral
  • THX Ultra2 certified
  • High efficiency
  • Dynamic sound
  • Authentic detail resolution
  • Excellent placement flexibility

Cons

  • Boxy-shaped cabinets
  • Protruding binding posts on the KS-525 requires relief cutout to accommodate flush mounting

Introduction

For nearly six decades Klipsch Audio Technologies has held an enviably successful position in the American consumer audio industry. That sort of longevity (given the competitive, volatile nature of the speaker biz) is, in and of itself, a tremendous and rare accomplishment. That their success has come about with a product line focused on horn-loaded loudspeaker systems for both the pro and home audio use makes this achievement even more impressive. And Klipsch knows horns; some of the best & brightest loudspeaker engineers, both past & present have contributed their talents to the Klipsch product lines over the years. And it all began with one person, with an idea, and a rented tin shed in Hope, Arkansas.
About the author:

Mark's audio career, began in 1981 when he designed his first loudspeaker system for a client who had grown disenchanted with the off-the-shelf products then populating local audio emporiums. Since then, he has designed over 100 systems, now found in homes, studios, theaters and dance clubs in north America & Asia. Mark has done detailed analysis and reviews and tech articles related to loudspeakers and subwoofers for Audioholics.

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