KLH Model 6 Floorstanding Speakers

4.5/5 (10 Reviews)


Product Description

Early acoustic suspension system made under original AR patent for similar


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Reviews 1 - 5 (10 Reviews Total) | Next 15

User Reviews

Overall Rating:5
Value Rating:5
Submitted by NonyaBidnis a AudioPhile

Date Reviewed: May 18, 2010

Bottom Line:   
KLH Model 6s are some of the best vintage loudspeakes out there. They are largish two-way 10" speakers designed at least in part by Henry Kloss of AR/KLH/Advent fame. The sound of the KLH 6s is possibly the smoothest of all of the box speakers of their era (roughly 1958 through 1972), including the AR 2axs, Dynaco A-25s, Large Advents, JBL L-100s, and so on. The highs of the KLH 6s start to roll off more quickly (at a lower frequency) than with some other vintage box speakers, but they don't sound dull--they just sound relaxing. The midrange and lower highs come off as smoother and less harsh than those of the Large Advent or New Large Advent, both excellent two-ways in largish boxes (and also designed at least in part by Kloss). The bass of KLH 6s is not quite as tight and punchy through the midbass as that of the Advents, but I was recently surprised by how deep the bass of the 6s goes. A pair of KLH 6s can make the walls rattle with well-recorded Bach organ music. The KLH 6s are especially good with classical, jazz, and female vocals. There's something about their smoothness through the midrange and lower highs that's really seductive. They're pretty dynamic as well (moreso than Dynaco A-25s, I think), though the slightly larger Advents (as well as ADS 810s and JBL L-100s) are possibly even more dynamic sounding. Neither the ADS nor the JBL is as smooth and "invisible" as the KLH, though. Of all of the high quality vintage boxes mentioned above, I think it's easiest to forget about the speakers and listen to the music with KLH 6s. The one word that captures them is "musical." Note that the very earliest KLH 6s had drivers that were epoxied to the front baffles and front grilles that couldn't be removed. Replacing drivers or updating crossovers is virtually impossible with these earliest 6s. If the front grilles come off and you see screws holding the woofers in, you're set. Another positive about KLH 6s relative to ARs and Advents: the KLH 6s' woofer surounds are treated cloth, not foam, so the woofer surrounds of the 6s are generally intact, even though the speakers are 40+ years old. Great speakers, especially if you prefer mellow and musical over etched and "detailed." They're also relatively "undiscovered" and can often be had for under $100/pair as of 2010.

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Used product for:   More than 1 year

Duration Product Used:   AudioPhile

Product model year:   Pre 1995



Overall Rating:4
Value Rating:5
Submitted by johnjohnjohn a Audio Enthusiast

Date Reviewed: January 31, 2008

Bottom Line:   
I have not heard the Model 6 but I do have a pair of KLH 17s which are supposed to be similar. Anyway, this review is about the Model 5s which are similar to the Model 6 in using an 11" woofer and 1.75" tweeter except it is a 3-way with 2 midrange drivers instead of the 6's 2-way design. Frankly these speakers blew me away when I hooked them up after fixing their crossovers (both tweeters were DOA when i got them but for what I paid for the speakers who cares. The problem was bad capacitors). Bottom line: these things really crank! With a good 50Wamp, new caulking and a bit of liquid electric tape to seal the woofer surrounds, I heard tremendous bass - deep, solid and full. Just like the AR3As I briefly owned last year, except the 5's images like a modern speaker which the ARs could not do in a million years. The 5's also have a wide open midrange and crisp highs (AR3As sound muffled by comparison). I don't care what the press say, the KLH 5s are more detailed and are more fun to listen to than the ARs. They sound like a speaker from the 80s, not the 60s. I also compared it to the original large Advents which I also own. Well, all I can say is if you like the sound of the Advents but find its upper midrange gritty like I do, you will love the KLH Model 5 (to be fair the Advents are more neutral in the upper bass though I find the slightly exaggerated upper bass of the 5s not the least objectionable). Also, overall I find the KLH 5s similar but somehow more "expensive sounding" than the Advents (not sure it's the right adjective but I think most readers know what I mean). This is not surprising, since the Model 5 listed for twice the price ($470/pr in 1968) and was rumored to have been at least partly designed by Henry Kloss (who left KLH in 1967). To sum up, I did not expect this level of performance from a pair of 40 year old speakers. I did not think they would sound as good as the ARs or Advents but they do, and then some. At their usual eBay price of around $250 they are a steal. The way they sound in my room I think they put a few $2K -$3K speakers to shame. The KLH 5's are the best vintage speakers I've heard. Of course with buying vintage gear the challenge is finding a working pair. At least I now know how to restore them.

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Used product for:   Less than 1 month

Duration Product Used:   Audio Enthusiast

Product model year:   Pre 1995

Price Paid:    $35.00

Purchased At:   Craigs list



Overall Rating:4
Value Rating:5
Submitted by John Brown a Casual Listener

Date Reviewed: September 24, 2007

Bottom Line:   
Having salvaged these from the scrap heap at a church clean out, I'm quite pleased with the results. The tweeters are apparently long since dead, and the cabinets haven't had the easiest of lives. The woofers, however are still in excellent shape and produce clear and smooth sound through their range. For nearly 50 year old speakers, or any speakers gotten similarly, they are incredible. With one grill cloth missing, torn out, they certainly could look better, but the sound makes up for any minor cosmetic issues.

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Used product for:   More than 1 year

Duration Product Used:   Casual Listener

Product model year:   Pre 1995

Purchased At:   headed for the trash



Overall Rating:4
Value Rating:5
Submitted by anthony stanco a Audio Enthusiast

Date Reviewed: August 22, 2007

Bottom Line:   
I took my KLH6's home, having to carry them to the bus, then to the ferry baggage cart and then from the cart to my office, 200 yards from the dock. They are beasts, and almost killed me. Then I got them home. I set them up along with my Advent loudseakers which are of nearly identicle size, give or take a few mm. and started to compare. Mellow, more mellow, rich, but comparitively dull compared to the advents. I next compared them to the Cambridge Audio 6's I have, and again, no contest on the highs, but the KLH6 still has this wonderful warm and fuzzy resonance that makes it a keeper. Because it is an 8ohm speaker, as are the Advents, my amp was able to drive both at once, side by side. I found the combination really pleasing, as both speakers seem to share aspects of Kloss's ear which makes them harmonious, clear, and rich in duet. Generally I don't subscribe to "more is better," and muddy is bad. My 6's are in good shape, while I haven't been able to get my AR2a's to sound as good. Maybe my amp needs upgrading to make a fair comparison of the AR2a's to the KLH 6's, but I always liked the sound of the AR4's. I think the KLH 6's have more in common with the AR4's than the 2a's, even with the 4's smaller package. I'll probably be criticized for that observation, but . . . .

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Used product for:   More than 1 year

Duration Product Used:   Audio Enthusiast

Product model year:   Pre 1995

Price Paid:    $20.00

Purchased At:   thrift store



Overall Rating:4
Value Rating:5
Submitted by anthony stanco a Audio Enthusiast

Date Reviewed: August 22, 2007

Bottom Line:   
I took my KLH6's home, having to carry them to the bus, then to the ferry baggage cart and then from the cart to my office, 200 yards from the dock. They are beasts, and almost killed me. Then I got them home. I set them up along with my Advent loudseakers which are of nearly identicle size, give or take a few mm. and started to compare. Mellow, more mellow, rich, but comparitively dull compared to the advents. I next compared them to the Cambridge Audio 6's I have, and again, no contest on the highs, but the KLH6 still has this wonderful warm and fuzzy resonance that makes it a keeper. Because it is an 8ohm speaker, as are the Advents, my amp was able to drive both at once, side by side. I found the combination really pleasing, as both speakers seem to share aspects of Kloss's ear which makes them harmonious, clear, and rich in duet. Generally I don't subscribe to "more is better," and muddy is bad. My 6's are in good shape, while I haven't been able to get my AR2a's to sound as good. Maybe my amp needs upgrading to make a fair comparison of the AR2a's to the KLH 6's, but I always liked the sound of the AR4's. I think the KLH 6's have more in common with the AR4's than the 2a's, even with the 4's smaller package. I'll probably be criticized for that observation, but . . . .

Expand full review >>

Used product for:   More than 1 year

Duration Product Used:   Audio Enthusiast

Product model year:   Pre 1995

Price Paid:    $20.00

Purchased At:   thrift store




Reviews 1 - 5 (10 Reviews Total) | Next 15

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KLH model 6

I've got a pair of... let's call them well loved... model 6s. Caught them just before they hit the dumpster at a church clean out. One's missing the burlap gill cloth, and both are sporting dead tweeters. I would absolutely love to replace the tweeters and check up on the crossover, but there seems ... Read More »

klh model 6

The model 6 has 2 posts for the positive wire. How should the wire be attached? Also I think I read that the coupling device, should be replaced with copper wire for better sound. Is this correct?Read More »

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