SKU: 8864780179

Challengers of the Unknown 7, Jack Kirby, FN (6.0)

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Challengers of the Unknown 7, Jack Kirby, FN (6.0)Challengers of the Unknown #7 FN (6. 0) We have listings for Detective Comics 244, 268 thru 315, 382 thru 399. Virtually all of these books are high quality issues (FN to VF ) that are rarely available. As time permits, we will list 316 thru 380. For a wonderful book, much related in spirit to Batman, please see listings for Challengers of the Unknown (7 thru 15 have been listed). A unique opportunity to obtain multiple issues from a trusted single

Challengers of the Unknown #7 FN (6.0)

We have listings for Detective Comics 244, 268 thru 315, 382 thru 399. Virtually all of these books are high quality issues (FN to VF-) that are rarely available. As time permits, we will list 316 thru 380.  For a wonderful book, much related in spirit to Batman, please see listings for Challengers of the Unknown (7 thru 15 have been listed).  A unique opportunity to obtain multiple issues from a trusted single source. 

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Published by DC Comics in 1959.  Cover by Jack Kirby & Marvin Stein.  Interior art by Jack Kirby & Wally Wood.  Plot by Jack Kirby.  "The Beasts from Planet 9" and "The Isle of No Return".

A very appealing cover with no major flaws.  The cover reflects light well (with 70% or more of original gloss) and has strong dark coloring.  The most noticeable flaw is the "No 1" inked in above the hand holding the net.  There is minor color breaking creasing and general non-color breaking creasing (see below for Definition of a Crease), but relatively little wear or scuffing.  The spine has a series of visible stress marks.  The back cover has a four inch tear running perpendicular from the spine.  General light soiling on the front and back covers, though the whites of the cover art come through nicely.  Interior pages are very supple and off-white to a light tan at the edges with strong colors to the story panels .  The staples are extremely well placed and the cover nicely cut with color extending nearly all the way to the spine, though the spine line is slightly askew from the spine.  The cover is nicely attached to both staples.  The cover's edges are very slightly creased at the top.  The corners are slightly rounded and there is a slight tear at the top left corner at the spine.  The book lies relatively flat with 2 of the corners rising 3 to 4 millimeters.  The book is complete with all pages securely attached with no interior tears or rips except the corner tips of the pages for the second story have been torn off and there are some very tiny tears at the edge of some of the pages (all relatively minor flaws).  A number of flaws, but still a very appealing book which displays and reads well!
 
Batman is our favorite comic hero.  As Challengers of the Unknown resemble Batman broken up into four heroes, it was natural to like their series as well.  Like Batman they have no superpowers, leaving them to rely on their wits and cunning to a larger degree than their superhero counterparts.  As with Batman of this era the plots are full of Asimov styled devices, aliens, and creatures.  One of the charms of the Challenger series was the comradery of the heroes, Ace, Red, Prof, and Rocky.  As the series evolved the banter between the boys was priceless.  We have nearly every issue and we highly recommend it to others!
 
Comic Grading - Definition of a Crease.
     
Crease - A fold which causes ink removal, usually resulting in a white line.  This seems to be the sense of what a crease is to Overstreet's Grading Guidelines and most comic graders.  We note two categories of creasing in our descriptions, 1) color breaking and 2) non-color breaking. 
 
For a color breaking crease, it must show that white line, though of course the thickness, length, and cover location of the crease are all important factors in how severely the crease actually degrades the cover's impact.
 
A non-color breaking crease is technically not a crease since it doesn't break color, but to those of us who have spent hours obsessing over our books, it is an interruption in the gloss or how the cover reflects light.  Take a smooth unblemished white sheet of paper and press your thumb nail into it several times using varying amounts of pressure.  As the paper is white there is no break in color, but depending on lighting and its angle to the paper eventually you would be able to see every point where the nail impressed the paper.  Again the noticeability, number, and locations of non-color breaking creases are factors affecting the quality of the cover.
 
If a cover is generally smooth, this means the non-color breaking creases present are interfering little with the cover's appearance.  These kinds of creases range from unnoticeable in normal viewing conditions to very intrusive.  A comic must be very carefully handled to avoid leaving these impressions at the edges.
 
Unfortunately, scans of the covers, even the enlargeable images we employ, do not always fully depict these imperfections.  We try to fill in the gaps by offering our estimate of what the Overstreet Grade would likely be, and by giving a detailed written description. 
 
Like most comic buyers and graders we have exchanged thoughts with, we agree that Overstreet Grading Guidelines provide a helpful starting point to access a book's quality, but we all have our own tastes and biases, and sharp disagreements on various books as well as complaints about Overstreet's approach.  Different books will impress you differently than they would us, which is why we try to be detailed and factual.  We are merely trying to provide buyers with enough background so the book received satisfies or exceeds the expectations generated by our listing.
 
See our listings for many high quality DC Comics from 1960 to 1973.
 
Please note the $4.00 handling fee for this purchase.  Fees charged do not fully compensate for labor and materials necessary to process a purchase. Purchases will ship within 5 business days.
 
As of this listing over 90% of all issues of Detective Comics 270 to 400, Action Comics 282 thru 482, & Worlds Finest 115 to 244 are in stock.  Open to requests for individual issues to list in store!!!
 
Expert Shipping!!!  We are very careful shippers.  We have shipped thousands of comics commercially.  Of 1500+ shipments, there has not been a single report of a packing problem.  Packing materials used are light weight and nearly impervious to harm!
 
We have tried to be precise and reasonable in my grading.  However, since grading has many gray areas ... No Condition is guaranteed.  No one can catch or describe every flaw, though generally our listings in detail and accuracy surpass 90% of other sellers.  Better yet, with enlargeable images for every item you can make sounder judgements about the quality of the item.  Please feel free to contact us if you have any questions or want additional scans via email.
        
We are posting a number of Silver Age Superman, Batman,
  and other DC titles.  Consider us for your 1960 to 1973 DC Comic needs.  Where else can you get 90% of all Challengers of the Unknown issues (though this may change as we are starting to list these)? 
 

Additional Terms

  • All sales are final.  All items are sold As-Is.  
  • Any differences between actual shipping\handling costs and those calculated by e-commerce software will be decided by the terms of this listing.  Shipping overpayments of less than $1.00 will not be refunded unless requested by the buyer.  A note with payment or an email at any point will suffice.  Buyers have made it clear that tiny refunds are unwanted. 
  • If you have questions, please email.

 





 

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8864780179

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4.6 ★★★★★
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X
Verified Purchase
Xterra rocks!
Natrona Heights, US
★★★★★ 5
Modern interfaces, clean sound of Yamaha, tons of features and intelligence.
Style: Receiver
Modern interfaces, clean sound of Yamaha, tons of features and intelligence. Purchased this to replace my amazing RX3300 (it started turning off on its own), and wasn't sure these newer generations of AV receivers would have the same clean and powerful sound, but the RX-A2A did not disappoint. Plus I am loving all of the new features and more relevant interfaces. It provides great value for the price. It is one of the few brands that kept the original sound as natural as possible (of course, there are plenty of modes to choose from for specific characteristics, but only if you choose). Perfect fit for my large family room.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
J
Verified Purchase
JM
Carnegie, US
★★★★★ 1
Hours of my life I won’t get back.
Style: Receiver
I tried to make this system work. I REALLY did. Probably blew 10 hours trying to somehow make it work. Had to return it. Customer Support - What customer support? Yamaha cut hours from weak 9 to only 5 hrs a day. Email/chat got no call back. It’s so bad I’m not sure Yamaha is gonna make it. Lip sync - Impossible to fix video to sound lag. Musiccast wireless - See lag. Also sound is tinny as hell. Also won’t stay linked. Could not get speakers to respond to giant volume knob. Would respond to app. App was mediocre. Tried to use with YSP-5600 sound bar which is allegedly Mussiccast. Nope. In short, it has been a HORRIBLE experience and I really tried.
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Reviewed in the United States on January 12, 2022
A
Verified Purchase
AB
Belleville, US
★★★★★ 3
Replacing a RXA770/780/880? You May be Disappointed.
Style: Receiver
I will start with the issues. (1.) HDMI audio drop outs. This can be fix by going into your tv and changing your audio settings from auto to pass through. However I remember this causing an inconvenience of some sort. I did not have to make this change with Marantz M1, Sony AZ1000, Or Integra DRX3.4. (2.) when unit goes into auto-standby while using the digital optical input, it will freeze after turning it on again. I had to unplug it to get it to work correctly. this happened every time. (3.) The plastic front panel can scratch easily. You may want to use a can of air to clean it. Yamaha should have flipped the design-the metal/aluminum where the glass/plastic is and the plastic where the metal is. (4) If using the coaxial for tv audio, It will take 9 full seconds before audio is heard. I had to buy a new TV(this was before the other issues were discovered). Finally (5) if you are replacing a RXA770/780/880, you may be disappointed. You'll have to step up to the RXA4A to get the features like PEQ and menus you had with them. Sound and Power: The 2 channel specs between the Yamaha RXA2A and The Yamaha RN1000A stereo receiver are similar. Don't let that fool you. The RN1000A is way more powerful and sound much better with music, however the A2A was way better than the RN1000A for movies and tv. In full range, sub off, the RXA2A could not drive the Polk RTIa5's well with music. In fact, to me the Marantz M1class D and the Sony AZ1000 70/70w class AB sounded more powerful and musical, making them easier to listen to than the A2A. The Integra best all 3 AVR's for music in full range mode without a sub to my ears. But with the 3.4, the sub output volume was way too low, I hated the click noise(sounds like it powered on again) when turning up master volume, and I couldn't use the presets without changing the source. The Yamaha RN1000a is the best for music only, especially at a sale price. My Positives: It come with a 5 year warranty when registered. It's well built, especially better than the Sony. You get 8 presets that you can set to the same source or different sources almost any kind of way. The dialogue mode works very well even for music. Yamaha Support is very helpful. If yours don't come with the above issues/defects that I listed, I think it can be easy to just set it, forget about it and enjoy it.
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Reviewed in the United States on February 8, 2026
D
Verified Purchase
DougMac
Chelsea, US
★★★★★ 5
Excellent AVR!
Style: Receiver
Our projector in our home theater died and I updated to a 4K projector. I was using a 10 year old Onkyo receiver. It was still working fine, but being that old it did not have the latest audio codecs or 4K HDMI, so I decided to go ahead and upgrade my AVR. I had bought a relatively inexpensive Yamaha for our living room TV a few years ago and have been pleased with its performance. I looked at the RX-A2A and RX-A4A. After reading numerous reviews and tests, I decided to go with the A2A, since it was on sale and much less expensive. The difference in features were not important to me. I only need one HDMI output and only have three inputs. While the A4A has a more powerful amp and better power supply, I thought the A2A would be sufficient since our home theater is "cozy" about the same size as a living room. My speakers in my 7.1 setup are very efficient and we play music and videos at a reasonable loudness. Still, I was concerned that the A2A would match the performance of the Onkyo with its beefier power supply and more power. My fears were soon put to rest. After swapping out the units, I set up the A2A. It only took 10 minutes, including running YPAO to calibrate the system. I designed the room carefully and it has acoustic treatments, including bass traps. Therefore, the adjustments made by YPAO were minimal. We watched "No Time to Die", which has a well-regarded soundtrack full of dialog, music and special effects, including some beefy LFE. The A2A handled it all with aplomb, even at a higher-than-normal volume setting. I felt there was a noticeable improvement in audio quality. My adult son, who didn't know I upgraded to the Yamaha, remarked how the audio sounded more balanced and refined, which he attributed my sound treatments (he'd already heard the Onkyo after I had installed them). Video quality is also excellent, seamlessly passing the HDR 4K signal to the projector. Although I'm frugal and didn't want to upgrade my AVR, I'm glad I did. I'm also glad I went with the A2A.
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Reviewed in the United States on July 8, 2024
T
Verified Purchase
Timothy Cox
Dallas, US
★★★★★ 5
Yamaha RX A2A
Style: Receiver, Style: Receiver
It was time to replace my old receiver with a current version. Much of the technology has changed when comparing receivers today versus 20 years ago. However, the Yamaha RX – A2 A offered a great balance between price and features. Hooking up my existing components and high definition television was extremely easy. I would recommend downloading the users manual from the Yamaha website to brush up on all options and features available during set up. The sound reproduction is top notch. I also hear the difference in surround sound reproduction compared to my older model. Once you spend quality time setting up your receiver to reflect the setup you desire, this model does not disappoint. I was able to set up my second zone so I can listen to a completely different input compared to the main room. I especially like the value added Bluetooth feature so I can connect directly to the receiver without any wires connection.
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Reviewed in the United States on March 11, 2026

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