Kg4's...4ohm or 6ohm

[Morton]

Forum,

I am playing a pair Kg4's through this tube amp and I have them hooked up to the 4 ohm screws. I read that some Kg's say 6 ohm. What will the difference in sound be if I hook them up to the 8 ohm screws. My Kg'4s say 4 ohm on the back.

Thanks

Bob

[Bill H.]

KG 4 Don't know if it would hurt, but I'd rather not risk it........JMHO.

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Specifications

FREQUENCY RESPONSE:

38Hz-20kHz±3dB

SENSITIVITY:

94dB @ 1watt/1meter

POWER HANDLING:

100 watts maximum continuous (500 watts peak)

NOMINAL IMPEDANCE:

6 ohms

ENCLOSURE TYPE:

Bass reflex via passive radiator

DRIVE COMPONENTS:

Two-way system using one 1" (2.54cm) phenolic dome compression driver tweeter with a 90°x40° Exponential horn, two 8" (20.32cm) front-firing, poly ICG cone woofers and one 12" (30.48cm) rear-firing, fiber-composite cone passive radiator

TWEETER:

K-74-K 1" (2.54cm) Phenolic dome compression driver

HIGH FREQUENCY HORN:

90°x40° Exponential Horn

HF CROSSOVER:

1800Hz

WOOFER:

Two K-8-K 8" (20.32cm) Poly ICG cone active / KD-12 12" (30.48cm) Fiber-composite cone passive

DIMENSIONS:

24.25" (61.6cm) x 15.75" (40cm) x 10.75" (27.3cm)

WEIGHT:

40 lbs. (18.2kg)

ENCLOSURE MATERIAL:

Medium density fiberboard construction (MDF)

FINISHES:

Walnut Oil, Oak Oil, Finished Black

BUILT FROM:

1985

BUILT TO:

1992

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Unauthorized Dealer Warning ©2005 Klipsch Audio Technologies. All rights reserved.

[Morton]

So it seems I'm safer at 4 ohms than 8 ohms. hmmm

I wish I understood this better. Nominal means theoretical...I think. Oh well, they sound pretty impressive hooked up to this old tube amp and 4 ohms.

I'll get rid of these old channel master tubes and try teslas as I was told they have a nice midrange.

[MrMcGoo]

Nominal impedance is a weighted average that is rounded. The 4 ohm figure is closer to a minimum. Bass response would be a good way to judge which tap to use. The 4 ohm tap is likely to work best for bass.

Bill

PS: Many speakers listed as 8 ohm speakers are 8 ohm compatible, not actually 8 ohm impedance. This is due to the very high sensitivity of Klipsch speakers. They are relatively easy to drive, but do benefit from correct amplification. B

[scotbuck]

Greetings,

My kg4's are 6 ohm and I prefer the sound from the 4 ohm tap on the amp. The bass is a little fuller and the highs are a little sweeter.

Take care,

Scott

[Seadog]

The early KG4s were rated 4 ohms. I've owned both the 4 and the 6 ohm KG4s and did not notice much of a difference. On an amp with 4 Ohm taps I would use the 4 ohm taps with the KG4s.

[Morton]

I appreciate the input on the 4 ohm vs 8 ohm. I do have them on the 4 ohm taps. I am running the kg4's on a bargain basement tube amp and I am amazed what I get in sound rsponse. This amp can't be more than 20 watts per channel. Says something about power supply. The bass is almost deafing in the 11'X11' concrete room I have it set up in. With rugs, sofas and other deflections. Fun is.