altec a7 vs klipschorn

But the RFs cross at 2000hz and even higher. Today, the A7 is one of the most sought-after speakers for home audio in Japan, in part because real estate is so expensive in Japan that to be able to say you a new pair of Khorns will sound fabulous. I had an Altec 19 for myself much years ago , I compared these pair of Altecs with a K-horn . Other than bass (which the 19 likely does better than the small, ported Valencias) the Valencias leave the Cornies far behind. Clear editor. I think you both will like them very much, both for their aesthetic qualities and their incredible sound. Yes, I use JBL 2426h drivers on 811b horns in my Belles. It has a more open, natural-sounding midrange and is highly detailed with less horn coloration and listener fatigue. Just a side comment. though there are other issues to resolve, a new pair of Jubilee's might actually cost you less than a new pair of Khorns (and perhaps sound better) Might at least be worth investigating. They have been in storage for the last 20 years, this pair We will let you know in advance of AK going offline during the upgrade install. I've been building a small collection of Altec, JBL, Klipsch, and Dukane speaker drivers and complete speakers. two way - Jubilee. sweet. Klipsch makes an awful lot of speakers. I would like to get pair of commercial K-horns. I just got a pair of 19's after years of looking and they are just great. Klipsch was a brilliant engineer, but I think the midrange driver, K 55 V, he used in the heritage line was not of exceptionally high quality. BUT, the model 19s are great full range speakers and technically they extend lower and higher than the khorn. I've used tractrix mid horn replacements in my vintage Khorns and now in my LaScalas. What crossover frequency were you planning on using? For two rather The driver on my 511B horn is the Altec 808-8a CD. I have a friend who owns these very speakers and I would like to suggest something to him. The difference between A5 and A7 is the HF horn: the former uses one of the multi cells, the latter the sectoral type horn. UPDATE: The forums, gallery and advanced search upgrades have been purchased. it sounds ultimately good and accurate. As someone else said, I'd be happy with either of them. Your link has been automatically embedded. You didn't specify in your posting what particular Klipsch speakers you are thinking of, and most respondents have referred to various herita on the Khorn, there is plenty of room on to the side of the tractrix horn for just about any tweeter you'd want to use. I had to "eq" the tar out of it just to get it to go flat up to 7500 Hz where I crossed it over to the tweeter. Many may know that I've been building for about 35 years. Discussion in 'Speakers' started by SixCats!, Dec 20, 2006. Waiting on Xenforo to set a date for installing the upgrades. January 19, 2005 in Technical/Restorations. So triumphant in fact that JBL, Electrovoice, and Vitavox all bought license and based some of their own "statement" loudspeakers on the K-horn. Studio monitor class. Note: Your post will require moderator approval before it will be visible. Pasted as rich text. A7s or Model 19's, both sound mushy compared to Khorns. Schu Powered by Invision Community. I have a pair of corner horn speakers that I built myself. Hey, I don't mind Coytee mentioning Jubs, but I spoke with a Klipsch technician and he said for my sized room 12' x 15' and 10' high (with the Khorns on the 15' wall) the Khorns would be the better fit sonic wise over the Jubilees. Of couse, I am wasting my breath on a Klispch forum typing thishaha. I know Al K. is using them on his Belles for sure. sounding Altec A7 Voice of the Theater VOTT speakers for PA / band use or LARGE audiophile home audio system. Quote. For the Belle you can do better. I have Model 19s in the downstairs kitchen, and modded 63 Khorns in the man cave, and they both are outstanding. Display as a link instead, I tested them using some Altec CDs and also K-55 and Selenium D-250X. Regulars. When you post a question like yours on the Klipsch Forum, you will find many respondents that prefer Klipsch speakers. Given that he did, I thought he might want to know that as big of hammer that the Khorn is, there are in fact, bigger hammers out there. Altec Model 19 vs Klipsch La Scala - Vinnie - High Efficiency Speaker Asylum Altec Model 19 vs Klipsch La Scala Posted by Vinnie (A) on November 12, 2009 at 17:50:19 Wondering if anyone has ever had the oppurtunity to hear these two classic speakers side by side? Paste as plain text instead, My type "B" network for the Cronwall is fixed at on crossover frequency and one set of levels. If your ears aren't tuned to it, that's one thing, but this isn't some mystical idea that I'm suggesting. Be sure to try several listening locations. On the Altec Lansing forum, it may be the opposite. Copyright 2022 Klipsch Group, Inc. This is a win-win situation. Happy to say more about the Jubs guys. My concern is the motorboad for my La Sclala's, I think I will need a new mount for my K77 outside the HF section. and have owned Cornwall, Choruses, and Fortes. They are small compared to an A7 or an A5 and they consequently give up LF performance as small vented boxes. You can post now and register later. They are even more efficient than the Altec A7's, which have a maximum efficiency of 103dB. Some of you talk about the 19s as tho they were the A7 voice of the theaters. http://forums.klipsch.com/idealbb/view.asp?topicID=53469, you will love the 511/ 902 driver combo, with maybe an ev 350, or beyma tweeter. We will let you know in advance of AK going offline during the upgrade install. Dorsey knows cinema sound inside and out, and in this article he shares his personal thoughts about these highly valued horn designs, and provides valuable tips on how to restore them. The K77 won't fit if you mount the 511 on the motorboard of the LaScala. All except for the part about dealing with the shortcomings of horn shout, which is a problem that cannot be solved. Even our host has spoken at length about horn shout on this very forum. Some of you talk about the 19s as tho they were the A7 voice of the theaters. The owner had used them with 311-90 horns and some 288's. I will always love my altecs. 19 thread, []. Now whether that is something I have accepted and learned to live with over time or just naturally prefer I cant say, but I am fond of it. 5) The Altec A-7s sound much like the much bigger Altecs used with the magnetic stereo widescreen movies of the late '50s and the '60s, except that the bigger A design by John Hilliard, Altec Lansing Voice of the Theatre systems originally targeted movie theaters. 1) Good horns tend to sound more like other good horns than non-horn speakers. Both of these are good brands, IMO. As always, it's You can build better new for under $700 a pair plus rational-size DIY cabs. :yes: http://community.klipsch.com/forums/p/91402/1318610.aspx, (You must log in or sign up to reply here. Your link has been automatically embedded. By clicking Subscribe, I agree to receive exclusive offers & promotions, news & reviews, and personalized tips for buying and selling on Reverb. I don't have the Model 19's but do have the Model 18 with the 604 8H driver and prefer the mids over the Khorns.The mids are much smoother.I like the point source driver the best. Yes, the A7s didn't have a great low frequency response, and their high end response was only as good as the khorns. The crossovers are ALK designed.The speakers are currently equipped with K-401 horns and K-55 drivers.I am thinking about switching to Altec 811B horns and 808 8A drivers.Can I do this without modifing the crossovers? List price was $599; list price of the A7 was $299.40. In a graph some of us have seen, they appear to be down 5dB at about 34 Hz, with a narrow, anomalous little dip at 60 Hz in the Klipsch anechoic chamber, but the chamber only has sidewall support out to about 4 feet. Here's the 1953 plans. That would be like saying that you disagree that we are on planet earth. I'm going to approach this from a FAST/WAW perspective with an Altec 511B metal horn providing the critical range of frequencies rather like a full range driver would in some of the popular FAST/WAS projects in the Full Range forum here. I suggest mounting the tweeter in the very top in one side of the woofer horn mouth. Intriguing, Daddy Dee, but I think (since the wife is just a little tired of my projects) I'll go with what we already planned on which is a new pair of Klipschorns.unless you think getting an older pair of Khorns and modding it like you did with the Tractrix is really the way to go? So much of your preference depends on your listening habits, the kind of music you prefer, your room, electronics, etc. Although we have industrial La Scalas now and having sold our K-horns recently, my wife and were pleasantly surprised by how little space they actually occupy when nudged into long wall corners (in our case, 21 feet apart). I don't pretend to presume that just because you don't care to hear about them that someone else that (might not know about them) doesn't. I don't know about the 811, but I had a 511 that I was using in place of the K-400 in my La Scala's, and it was night and day better than the K-400. Khorns have surprisingly high WAF. Well said Gary. Very objective reply. tc I'd planned on building a new motorboard to use with it, but was moving into a place that could not accommodate Khorns, so didn't go further with that project. Owned and used a pair of 1974 Cornwalls for a decade. 811 horns have a low frequency cut-off of 800Hz and won't go much below that. Well you'll see lots of guys around here modding their Klipsch speakers with various Altec compression drivers, horns and woofers but I've NEVER seen Altec guys modding their speakers with Klipsch parts. []. I have owned Cornwalls and Klipschorns and presently have a pair of Altec Lansing Model 19s. Best Offer: The network is fine, but like the guys are saying, the 811b is only good to a but below 800 Hz. It may be worth noting that in their newest hi-end product, Klipsch uses direct radiator bass. I do NOT recommend that combination. I know of several people who have made than change. dkalsi ', Sorry for that , but I cant agree . Note: Your post will require moderator approval before it will be visible. The 19s go beyond 20k with the original diapgragms in them. Either way, "shout" is not a term that I would personally describe the sound of Altec horns, other than making a reference to basic sonic characteristics that are inherent in any horn loaded speaker system. They just disappear into the corners! The Klipschorn Ak6 is a three-way, fully-loaded speaker with a greater than average sensitivity and size. very different. Discussion in 'Speakers' started by Coolhandjjl, Jun 4, 2010. The A7's are really nice from the upper bass to the top end. Been using 511b/902-16a on top of 75' Cornwall bins. Yes, the A7s didn't have a great low frequency response, and their high end response I currently own both. They both do differnt things well. I have to say that if I put the amount of money into the Altecs that I have in i'm currently using the one built as a drop in replacement for LaScala. If you have an account, sign in now to post with your account. I have never heard the 19 pitted against the Khorn, but I agree that it is a very good speaker. [] Now that is the toppest of notches you are ever gonna get [Y] If you have an account, sign in now to post with your account. This is a wonderful pair of Klipschorn Type AK-2 Walnut Veneer in Very Good to Excellent condition. In at least one pitting of the Altec A7 against the Khorn, the Khorn had considerably better very high frequency response, even though both did not extend much beyond 15K Hz. Therefore, of course I agree. Discussion in 'Audio Hardware' started by murphythecat, Oct 17, 2016. Altec horns most certainly shout, just like any other, perhaps even more so. Looks like maybe 1940's vintage 2A3 tubes, too. I just got hold (next week) of some ALK B X-overs. Much better bass than the A7 cabinet. DM Quote CaptnBob This website and its contents are copyright 2020 KCK Media Corp. All rights reserved. I replaced the stock Midrange Horn of the Khorn with a pair of 1005B Altec horns with 288-16K drivers. They can take power better than an original Altec 19 network. Your previous content has been restored. By They pioneered two way design and were the industry standard in recording studios for years. WebA pair of Altec -- Lansing A7 "Voice of the Theatre" loudspeakers and their domestic counterpart, the Altec Corona, will visit our listening room. Classis Altec and Klipsch share the common virtues of great clarity, hair trigger dynamics and high sensitivity. The A7-500-8 features improved high-frequency projection over the A7-8, but both are less sensitive and capable of slightly less maximum acoustic output than the A5X. In my experience, the Model 19 is preferable to either Klipsch speaker I owned. Khorns show 33hz- 17khz. "Are the Vintage altecs as desirable as the klipsch seems to be?" ..not around here they ain't! [] What they share is their horn design and their efficiency. Yes, the 511 takes up the entire top front of the LaScala. Altec spec sheets show 30hz- 20khz freq response, Khorns show 33hz- 17khz. I know that the new 2004's are rated at having a 450Hz crossover at a 6db slope, but previously, the "accepted" value was 400Hz or a bit lower like 375Hz. Those wooden horns look very cool. Yes, I know it's the sound that matters most but when you're talking about $15,000 speakers (CORRECTION! I agree that the Khorns are good speakers, but I wonder if some of you are hearing the same 19s that I am hearings. (e.g., check the vertical polar pattern on the Iwata profile horn that you propose, not just the horizontal pattern), and I wish I had an option to get some new khorns. Waiting on Xenforo to set a date for installing the upgrades. You need to talk with Al Klappenberger of ALK fame, I think that he's got all of that in his Belles. 2.8k. The jubs have been in the house about 7 months now, & I have only listened, have not even started the cosmetic plans of staining the center panel's to match walls & still kicking around different options for grill cloth etc. I want him to try them out. What do you recommend? 4) Paul Klipsch ran curves of the Altec A7 v.s. both the La Scala and the Klipschorn in the '60s. They are reproduced somewhere on this forum. Just something different often sounds better at first. WebBuy Klipsch Heritage here: https://paducahhometheater.com/collections/klipsch-heritagePaducah Home Theater / PHT TV - Ep. It's futile. Waiting on Xenforo to set a date for installing the upgrades. Are the Vintage altecs as desirable as the klipsch seems to be? i have a set put away, i havent brought them out in a long long time. All of the different speakers & various amps have been a wonderful learning experience along the way, I was financially fortunate enough to take my hobby & Klipsch journey to Mr. Pauls final creation,. Forum Policies, Rules, and Terms of Service. I think Klipsch made basically three speakers that were fully horn loaded and finished like furniture for use in home audio systems (as opposed to sound reinforcement applications.) Hey! Your purchases also help protect forests, including trees traditionally used to make instruments. I've only heard a modded model 19's and they were amazing. Off the topic, I have just bought a pair of Gradient SW-63s, a pair of dipole subs specifically designed to accompany Quad ESL-63s. Edit: Just found 4 on e-Bay, if the price stays low enough might pull the plug on three. Good condition items function properly but may exhibit some wear and tear. In my personal opinion the K-horn is , as I ca. Oops, looks like you forgot something. Cant do that with new stuff. By reputation alone, I would certainly consider a pair of Klipsch Jubilie. The Model 19 was intended and designed as a domestic loudspeaker, not for theatre sound reinforcement. The entire series was gradually expanded for use in general sound reinforcement and later converted in extreme high-end audio segments for hi-fi home use. Naturally, keep all You'll have to listen for yourself and see what "does it" for you. Including the guy who had $500 and was thinking of Fortes. well, the Khorns and LaScalas both use the venerable K-401 horn. It would have to be mounted externally. And that was with the K-55 driver mated to it. Fits standard Altec Drivers 1.4 3-bolt Dimensions 37 1/2" W x 19" H x 31" D Weight 30.5 lbs each unpacked. Display as a link instead, The Beyma CP-25 is reputed to be a hands-down improvement over the stock EV T-35 tweeter. excellent in a small room and in a big room, word of mouth and Some call them plug uglies, but I could care less when I am listening, for me its all about the reproduction of music. could you say more about your experience with jubs? dkalsi Clear editor. UPDATE: The forums, gallery and advanced search upgrades have been purchased. Condition: Used Used. They claim 800hz crossover and are fully functional with attenuation knobs on them. What is the amplification used for Amphion and how do they sound? he also builds one for Khorn with the option of a replacement Khorn tophat motorboard if desired. I have them in my Belles and cross them at 700. I know you'll enjoy the process of getting a new pair of these legendary speakers! You can post now and register later. The A7-500-8 features improved high-frequency Their top of the line residential unit at the time was the Laguna, with two 803B LF drivers and a 511B horn with 802D HF driver. I have never been a fan of aluminum or titanium tweeters. The entire series was gradually expanded for use in general sound reinforcement and later converted in extreme high-end audio segments for hi-fi home use. Thank you for your input, Daddy Dee, I'll go with the new Khorns. IMO the Altec Model 19 was the best turnkey speaker ever made. They are making new ones for original Altec tools. Arash another thing about Altecs, its hard to find amps that will make them sound their best. absorbers & diffusers -- or at least a few wall hangings and You can use them anywhere, as they are no longer corner horns. Are they really that different??? Others have different opinions that are just as valid. ). My experiences have found them a little too bright and crisp. Thus even Altecs and JBLs that used direct-radiating woofers had much of the midrange horn-loaded. I'm also thinking about replacing the T-35 tweeters with Beyma CP-25s. He was thrilled. The Khorn would be pushing it to get to 450Hz on the upper crossover point, IMO. WebSet of 2 Two Vintage Altec Lansing A7 Speakers Wood Cabinets . It is not the only hammer in the toolbox. Fast transients, no power compression, amazing detail and dynamics, vs. mush for reflex..yuck. The bottom end is there but not so predominant until the power is applied and at that point things are i can perfectly visualize what you are describing thank you for taking the time to help me understand something that maybe fundiment Absolutely not.what a silly question.[] By each and is known to produce a sound pressure level of 105 dB with just 1 watt. You cannot paste images directly. Just an observation, but i find it kind of interesting how many of those who have arrived at 19's have owned Cornwalls at some point along their journey. DIY Corner Horns,McIntosh C-26,McIntosh 2505,Micro-Seiki DD-40 TT with Grado reference master,Pioneer RT-909 reel to reel. $12,000), the finish DOES matter to a significant degree. The Altecs haved dynamics coupled with an effortlessness that's essentially unmatched by anything else even close to reasonably sized or priced. For the record, I bought an original set of Altec A7-500s in 1968, and they are still my main speakers - modified, of course. Copyright 2022 Klipsch Group, Inc. It should outperform IME the Klipsch version (s) to a degree in that its rear-loaded horn is more defined rather than a simple slot at the rear of the cabinet. Just a fun debate for me. You cannot paste images directly. I can't listen to the Klipsch for very long periods of time on SS. Note: Your post will require moderator approval before it will be visible. By As any one who has spent very much time & experimentation in this hobby soon learns the significance of room & our personal hearing choice & cost is a major consideration. This is a sample of Klipsch's Flagship speaker displayed on their website! The Klipschorn is all horn-loaded (the Heresy is not in the woofer), weighs 175 lbs (each) and stands 51 inches tall. The "little" A8 is a sleeper. i'd suggest taking a look at Dave's fastlane audio website. It's a home-build DIY 6SN7 driven 2A3 3.5Wpc amp: very nice 2A3 amp. Coytee, will you EVER stop pushing Jubilees? The difference is likely lower distortion of the Khorn. Display as a link instead, Q-man and Rick are both excellent resources on this subject. Did he say why (in detail)? For those with much mor eknowledge than I, what are the sound differences? Set of 2 Two Vintage Altec Lansing A7 Speakers Wood Cabinets . bluesboy They are HUGE and so is their sound. The weak point is that K501 and K401 horn itself! Upload or insert images from URL. All of which I've already said in this thread. Was that a tough job fittin' them in the Khorn??? Since I am almost 70 now, I thought I better do it now,, tomorrow is always an unknown [8-)] especially at my age. Items must be returned in original, as-shipped condition with all original packaging.Learn More. I personally don't care for the Altec horns. They just sound "off" and I dunno how else to describe it. I would much sooner go with an EV or JBL, b Clear editor. I had an Altec 19 for myself much years ago , I compared these pair of Altecs with a K-horn . UPDATE: The forums, gallery and advanced search upgrades have been purchased. A design by John Hilliard, Altec Lansing Voice of the Theatre systems originally targeted movie theaters. Waiting on Xenforo to set a date for installing the upgrades. As everyone says, a lot depends on the room, especially with Khorns. You're in denial. Display as a link instead, With that said I think there are much better Altec Midrange Horns and Drivers than are in the Stock Khorn. I said that because any time anyone mentions obtaining Klipsch on other forums, you ALWAYS mention Jubilees if you post in the thread. ). ). I keep reading about how nice the mid-range Tactrix horns are.is Klipsch now (at this time) building new Klipschorn speakers with the Tactrix mid range horns??? The bass is routed out of the front, up and down each side and not the back. wouldn't suggest that any BRAND of speaker is necessarily better, but would say that the speakers all are different. The La Scala has the BAD K400 squawker horn from the Klipschorn and the Cornwall has the higher I have both Klipsch Cornwalls and Altec Valencias. I've used both in my main system and have found the Cornwalls to be brighter and more detailed. The Valencias are smoother and not as fatiguing. I've listened to Cornwalls. A bit bright and prone to listener fatigue. Find a pair of Model 19's and your hunt will be over. I suggest a new Altec 902 from Great Plans Audio. What are the physical dimmensions for the horn. ok .. point taken .. whaddabout the EV 350t biradial ..?? It's as if the 511 was made for it! I'm thinking of building a set of two way CW-like speaker using 811-b horn and 816-8 altec woofer (we can call it 811-Cornscala). 811 sounds just like 511 but 511 has a higher cutt-off frequency. Yeh. I like hustling up nice horns at a good price and I'm really less concerned about the specific brand. You may want to slack off a little, so your positive comments regain an appropriate level of credence. And in the Cornwall, a full-range domestic loudspeaker that is well regarded, a direct radiator, ported bass is used. i can perfectly visualize what you are describing thank you for taking the time to help me understand something that maybe fundimental to others. Copyright 2022 Klipsch Group, Inc. both 811 and 511 sound far better than K-400. I hope you are aware the A7 is an industrial looking box intended to be custom finished for residential use. They have the most advanced crossovers which are really fine tuned for the drivers. Note: Your post will require moderator approval before it will be visible. You won't regret it! Spec sheets are not as helpful as they sometimes seem. Your link has been automatically embedded. If you have an account, sign in now to post with your account. They can be improved by modifications to a completely superior level. this can result in this site earning a commission. YMMV. Your link has been automatically embedded. They also sound terrific at extremely low SPLs (I have never heard "fade-outs" reproduced better than on Altec drivers) as well as at concert sound levels. On 1/20/2005 8:40:10 AM Al Klappenberger wrote: On 1/20/2005 11:02:47 AM Al Klappenberger wrote: Regarding the 511 change I have a split center, I think I am going to by a single horn and build a new HF box for it to A/B and decide from there. Look man, I hate to break it to you but all horns shout. affiliations include, but are not limited to, the eBay Partner Network, and There will be a reasonably integrated inpulse response compared to the Auditorium 23 and the Klipschorn where the tweeter leads the mid by so much. On 1/20/2005 8:40:10 AM Al Klappenberger wrote: Guys, The only comparison plots I did was of the K55 on an Altec 511b horn versus on a Artto and Cask, if you have not already done so. If you were more specific about what Klipsches you are thinking about, you would get more informed answers. I was first exposed to Altec speakers, haunting a HiFi store since before I could legally drive. Upload or insert images from URL. That is indeed a beautiful 2a3 amp, did you build it Arash? What driver would you recommend for the 511B horn? Powered by Invision Community. If I can help any one with specific questions, PM or email me. Anyone want to swap there Jub's for Altec 19's? WebSomething that needs to be mentioned is that the Altec A5, A6 and A7 use the same main cabinets, the 828. The Jubs are Fabulous & perform as most other owners have described far more eloquent then I can. By Truth be told I've never listened to a pair of Khorns but I do have the Cornscalas and am blown away by their openness and clarity so, along with my HH Scott amp and Empire turntable connected to the new Khorns.well let's say I'll be a very happy man - and the wife too as she loves the sound of the Cornscallas as well as how the Khorns are set into the corners of the room. Sound 80 mix-masters could achieve 110+dB at the console. If you have an account, sign in now to post with your account. They're also smaller (at least, not as tall as) the As for tonal balance and voicing, well that varies The A7 (pictured here) is I have a few other sets of speakers thru out the house (Cornwalls, Pioneer, Sansui, Advents) & enjoy them all for what they are. to my ears the tractrix mid horns have a more open sound. Xovers: The K-horn did this very well considering they had 3 drivers to contend with. Having heard both in a number of different rooms and setups,The Klipschorn is more room dependent and Amplifier dependent than the Altec 19s. When the room is Big and Khorns are in Proper Corners and you have good tube amplification the Klipschorns will smoke the Altec 19s. heard them, though. Paste as plain text instead, different takes on what might be a good approach, explore the posts by I have owned all the Heritage series except the Bella's & the Chorus, In my listening room (without good corners & several other undesirable architectural traits, the Jubs have given me the best performance. It has much more bass than the Heresy, is more Add to cart. Well you'll see lots of guys around here modding their Klipsch speakers with various Altec compression drivers, horns and woofers but I've NE feet or more from any corner in which there are Khorns. Funny that this would come back up? The thoughts of previous posts are right on. I still to date have both speakers and like them for thier strengt This article explains what we need to know about these speakers that are still highly sought-after with many still in use in cinemas. "Are the Vintage altecs as desirable as the klipsch seems to be?". Affiliate programs and Please check the fields highlighted in red. Dr Morbius: It looks like, as of June 2, you still haven't bought anything. However- Got rid of them quickly after I got a pair of 846A Valencias. "The weak point is that K501 and K401 horn itself!". It might be hard to find a pair to listen to, but search the forum to see if somebody near you has them, and will let you listen. As far as the JBL/Beyma tweeters go, I am less certain about that. OTOH, the smaller Altec drivers have much better HF extention than the 288's so they might be just great. Not my intent at all. WebVoice of the Theatre A7-500-8 For smaller theatres, or where space is at a premium for multitrack systems, the A7 is the choice. Furthermore, most of the graphs I've seen done on Khorns don't have extended highs or the flattest frequency response.

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