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Yamaha NS-6490 vs Klipsch R-51M

Comparison and Difference Between

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Brand and Model Specifications

Information about the brand, model release date.

Manufacturer Yamaha Klipsch
Model NS-6490 R-51M
Photo
Release Date 1998 2018
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Technical Specs

Technical characteristics of the speakers.

Amplification Type Passive Passive
Crossover Type 3-Way 2-Way
Enclosure type Acoustic Suspension Bass Reflex
Frequency Range (+/-3 dB)[Hz] 45 - 23000 62 - 21000
Frequency Range (-6dB)[Hz] 62 - 21000
Maximum SPL [dB] 110 108
Sensitivity (2,83 V/1 m)[dB] 90 93
Nominal Impedance (Ohms) 8 8
THD (Total Harmonic Distortion) 0.8%
Recommended Amplifier Power [W] 70 75-340
Crossover Frequency [Hz] 3000 1660
Bass Reflex Tuning Frequency [Hz] 55 N/A
Driver Units

Tweeter: 7/8″ dome
Mid/Bass Drivers: 8″ cone woofer and 4″ cone midrange

Tweeter: 1″ Aluminum LTS
Mid/Bass Drivers: 5.25″ Injection Molded Graphite (IMG)
Connectivity Wired Wired
Inputs Single Wire Single Wire
Outputs N/A
Magnetic Shielding Yes No

Placements and Distances

Where and how to put them.

Form Factor Floor, Stand Shelf, Stand
Distance from Wall [cm] 20 15

Dimensions and Weight

Physical characteristics of the speakers (without stands).

Length ~13.4 in
~340.36 mm
~34.04 cm		 ~8.5 in
~215.9 mm
~21.59 cm
Width ~12.5 in
~317.5 mm
~31.75 cm		 ~7 in
~177.8 mm
~17.78 cm
Height ~21.5 in
~546.1 mm
~54.61 cm		 ~13.3 in
~337.82 mm
~33.78 cm
Weight (Single Speaker) ~32.0 lb
~14514.96 g
~14.51 kg		 ~10.7 lb
~4853.44 g
~4.85 kg
Shipping Weight ~35 lb
~15875.73 g
~15.88 kg		 ~11.6 lb
~5261.67 g
~5.26 kg

Colors and Accessories

List of available colors and optional accessories.

Colors
  • Black
  • Black
Accessories
  • User Manual
  • Manual
Detachable Grilles Yes Yes

Price and Warranty

Satisfaction is (not) guaranteed.

Warranty 2 Years 5 Years
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Review Comparison

Hifispecs' professional customer-reviews can help make up your mind.

Available Reviews
Yamaha NS-6490 Review
Klipsch R-51M Review

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