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Zappa Freak

good watts for KG 5.5

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What would be a reasonable amount of receiver watts to push a pair of KG- 5.5

 

 

75 Watt amp?

 

 

 

 

 

* sorry hit the post button twice may have to cut down on my cocktails..........................

Edited by Zappa Freak

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From the specs below showing 98dB sensitivity, 75 watts should allow you to hit slightly over 116 dB peaks in the music easily at one meter from the speakers. 

 

The wildcard that I’m not familiar with is related to the impedance curve of the speaker.  For example, the KG 5.5 uses a parallel speaker connection for the two woofers.  When speakers are connected in parallel, the impedance is reduced, which means that for the same amplifier output voltage, the current demand on the amplifier will be increased. As an example, if you have two 4 ohm woofers connected in parallel, the total impedance is 4/2 or 2 ohms.

 

 

The two-way KG Series KG 5.5 floor-standing loudspeaker was first introduced in 1994 and manufactured by Klipsch until 1997.

 

Specifications: FREQUENCY RESPONSE 34Hz-20kHz(+-)3dB

POWER HANDLING 100 watts maximum continuous (500 watts peak)

SENSITIVITY 98dB @ 1watt/1meter

NOMINAL IMPEDANCE 8 ohms

TWEETER K-85-K 1″ (2.54cm) Polymer dome compression driver

HIGH FREQUENCY HORN 90(o)x60(o) Tractrix® Horn

WOOFER Two K-1023-K 10″ (25.4cm) Injected Carbon Graphite cones

ENCLOSURE MATERIAL Medium density fiberboard construction (MDF)

ENCLOSURE TYPE Bass reflex via front-mounted port

DIMENSIONS 37.5″ (95.3cm) x 12.25″ (31.1cm) x 17.5″ (44.5cm) WEIGHT 69 lbs. (31.3kg)

FINISHES Whitewash, Lt. Oak, Med. Oak, Cherry, Walnut, Black Satin veneers, Black vinyl

BUILT FROM 1994 BUILT UNTIL 1997

Edited by Fjd

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Well not a fully horn loaded system they are still very efficient. Anything above 35 watts solid state will drive them as high as you wish without distortion. Relax and use what you've got for awhile and then, if yo need to, make  move from there.

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Heard them with a 2250 Marantz, plenty of power unless you have a very large room like it really loud.

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Well not a fully horn loaded system they are still very efficient. Anything above 35 watts solid state will drive them as high as you wish without distortion. Relax and use what you've got for awhile and then, if yo need to, make  move from there.

 

 

Good point, as long as the impedance of the KG 5.5 doesn't dip too low for the amplifier, the 35 watts should allow him to experience the feeling of 109 dB peaks of a grand piano crescendo. 

 

Sure is a nice advantage when using a high efficiency speaker given that every doubling of power is another +3dB of loudness.  Those guys with the low efficiency speakers (e.g., 86 dB) sure have it tough when it comes to watts as they would need 256 watts for the same 109 dB peak.

 

1 w = 86 dB

2 w = 89 dB

4 w = 92 dB

8 w = 95 dB

16 w = 98 dB

32 w = 101 dB

64 w = 104 dB

128 w = 107 dB

256 w = 110 dB

 

 

Edited by Fjd
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