OO1

there are no visible electricity wires or poles or I'm blind

I would think a single RP -1200 -SW would be a good fit , but so would the R-120SW 249$

now , we know that new power supplies can last at least 2 years

it's also a more powerful / powered sub with 2x12 inch drivers , a recent photo showed the LX sub with a BGW VX 880 lurking at the back .Power Output 900 W/ch @ 8Ω, 1500 W/ch @ 4Ω

your pet seems to favor the Forte , here he is lying flat asleep next to the speaker playing music

the PZM is powered by either 12-48 V phantom power or 1,5V battery power

how much do you want to spend , new or used ...

you're late , I saw it

what's the teaser item

same set of speakers on Audiogon , https://www.audiogon.com/listings/lisb7722-klipsch-rf-7-ii-limited-edition-walnut-full-range

John , the sub you're showing is not the Large sub for the Lascala /khorn , the Large sub has 3 braces per side , and it's wider and almost as high as a khorn

I dont think so https://usa.yamaha.com/products/audio_visual/hifi_components/a-s501/index.html

contact klipsch tech support https://support.klipsch.com/hc/en-us/requests/new

@OldCrowthe tweeters in the 1st and 2nd pictures are aftermarket CT12O , the klipsch original K-77F tweeters may have been removed or the wires are simply disconnected , to determine if the diaphragms are defective , you'll need an Ohmmeter . the 3rd and 4th pictures are klipsch tweeters for a different klipsch speaker model

ask the OP

1981 was a very special year for the Heresy , open the rear panels , let's see what you have as mids drivers , K-55V ,single or dual phase plug midrange

the OP already purchased a set of K-77 Alnico

the original tweeters for the Lascala II are the K-77 F , klipsch Part # 127126 ,replacing defective diaphragms does not require soldering , klipsch -800-554-7724 https://support.klipsch.com/hc/en-us/requests/new

@dopeihope2 possibilities here . -the AK-2 were plagued with corrosion of the old monster style wiring , the corrosion occurs between the clear plastic jacket and the copper wire , discard the old wire end to end , remove all traces of the old solder . -a dirty voice coil gap or a worn out VC can also cause a grainy sound , remove the 4 screws , slowly , gently separate the magnet assembly , clean the VC gap , retest .

Corpus

sure they do , where have you been ? the latest klipsch subs are beasts

1984 Heresy speakers are not Heresy II , they are Heresy 1 or more accurately Heresy 1.5 ,1984 was the last year for the H1 series , these 84 Heresy speakers are very particular .as they shared some drivers and horns with the Heresy 2 ,

pair of CW IV in late 2019 cost 4500$ , price in 2023 is 6600$ , no wonder used Heritage prices are up ,

only if the speakers are in mint condition