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Klipsch RB-81 vs Audioengine P4 Comparison

Comparison and Difference Between

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Brand and Model Specifications

Information about the brand, model release date.

Release Date20102009
What Hi-Fi? Rating -
Amazon Rating

Technical Specs

Technical characteristics of the speakers.

Amplification TypePassivePassive
Crossover Type2-Way2-Way
Enclosure typeBass Reflex 9.5mm thick MDF cabinets
Frequency Range (+/-3 dB)[Hz]46 - 23000 58 - 22000
Frequency Range (-6dB)[Hz]--
Maximum SPL [dB]--
Sensitivity (2,83 V/1 m)[dB]9788
Nominal Impedance (Ohms)84
THD (Total Harmonic Distortion)--
Recommended Amplifier Power [W]-125
Crossover Frequency [Hz]1800-
Bass Reflex Tuning Frequency [Hz]--
Driver Units

Tweeter: 1″ (2.54cm) Titanium diaphragm compression driver mated to 90°x 60° square Tractrix® Horn
Mid/Bass Drivers: 8″ (20.3cm) Cerametallic™ cone woofer

Tweeter: 3/4″ silk dome tweeters
Mid/Bass Drivers: 4″ aramid fiber woofers



InputsSingle WireSingle Wire
Magnetic ShieldingNoNo

Placements and Distances

Where and how to put them.

Form FactorShelf, StandShelf, Stand
Distance from Wall [cm]1515

Dimensions and Weight

Physical characteristics of the speakers (without stands).

Length~9.25 in
~234.95 mm
~23.5 cm
~5.5 in
~139.7 mm
~13.97 cm
Width~12.25 in
~311.15 mm
~31.12 cm
~6.5 in
~165.1 mm
~16.51 cm
Height~19 in
~482.6 mm
~48.26 cm
~9 in
~228.6 mm
~22.86 cm
Weight (Single Speaker)~30 lb
~13607.77 g
~13.61 kg
~6.17 lb
~2798.66 g
~2.8 kg
Shipping Weight~30 lb
~13607.77 g
~13.61 kg
~12.34 lb
~5597.33 g
~5.6 kg

Colors and Accessories

List of available colors and optional accessories.

  • Cherry woodgrain vinyl
  • Black Ash woodgrain vinyl
  • Satin Black
  • Hi-Gloss White
  • Solid Carbonized Bamboo

Detachable GrillesNoNo

Price and Warranty

Satisfaction is (not) guaranteed.

Warranty5 Years2
Amazon Price


Small print and stuff...

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