Just got a 99% Clean set of Polk 7Cs for $100
AMF007
Posts: 21
I couldn't pass these up, didn't really need them, but I had just missed an opportunity to buy a pair of 10s locally. I had 10Bs brand new back in the day.
So, for $100, with the same frequency response as the 10s, I figured what the heck.
Did about an hour of listening hooked up to my Parasound A21, thru my Node 2i and RME ADI-2. Fairly impressed! Now by no means does it knock the paint down or rearrange the wall art like my A23+ into my modded 2.3s, but classic Polk fullness sound, and no slouch on the bass at moderate to mid-high volume, specially with quality material.
Now, what I did take away was this: I now have a lookback comparison to when my 2.3s had the SL2000s, and I am glad I did the 194 upgrade there. For me, and I know not for all, I can hear the sharp difference in the SL2000s, and will likely get some 194s for these 7Cs.
I just got a copy of the Audio Advisor monthly rag in the mail, and saw the PSB Passif 50 on the cover. I went online to check the specs, seeing they are 2" taller" 2' inches narrower, and similar depth, I compared them to the 7Cs. Hard to believe the PSB's freq response is only 50-20,000Hz, for the low low price of $2498 a pair! (7C 25Hz-26kHz)
That all said, if I upgrade the tweeters to 194s and recap/resistor these 7Cs, what else would I buy to compare these to? Hard to believe the PSBs would be leaps above these, but maybe someone has some, and can comment.
So, for $100, with the same frequency response as the 10s, I figured what the heck.
Did about an hour of listening hooked up to my Parasound A21, thru my Node 2i and RME ADI-2. Fairly impressed! Now by no means does it knock the paint down or rearrange the wall art like my A23+ into my modded 2.3s, but classic Polk fullness sound, and no slouch on the bass at moderate to mid-high volume, specially with quality material.
Now, what I did take away was this: I now have a lookback comparison to when my 2.3s had the SL2000s, and I am glad I did the 194 upgrade there. For me, and I know not for all, I can hear the sharp difference in the SL2000s, and will likely get some 194s for these 7Cs.
I just got a copy of the Audio Advisor monthly rag in the mail, and saw the PSB Passif 50 on the cover. I went online to check the specs, seeing they are 2" taller" 2' inches narrower, and similar depth, I compared them to the 7Cs. Hard to believe the PSB's freq response is only 50-20,000Hz, for the low low price of $2498 a pair! (7C 25Hz-26kHz)
That all said, if I upgrade the tweeters to 194s and recap/resistor these 7Cs, what else would I buy to compare these to? Hard to believe the PSBs would be leaps above these, but maybe someone has some, and can comment.
Comments
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Nice deal! Got any picsLiving Room 2.2: Usher BE-718 "tiny dancers"; Dual DIY Dayton audio RSS210HF-4 Subs with Dayton SPA-250 amps; Arcam SA30; Musical Fidelity A308; Sony UBP-x1000es
Game Room 5.1.4: Denon AVR-X4200w; Sony UBP-x700; Definitive Technology Power Monitor 900 mains, CLR-3000 center, StudioMonitor 350 surrounds, ProMonitor 800 atmos x4; Sub - Monoprice Monolith 15in THX Ultra
Bedroom 2.1 Harmon Kardon HK3490; Bluesounds Node N130; Polk RT25i; ACI Titan Subwoofer -
Why not add the RD-0198's while you're upgrading?Don't take experimental gene therapies from known eugenicists.
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Good Idea on the 198s! For the 7's, might be worth a shot at the 198's, that way I can hear them in something. Are there component values that change to support those vs 194? I suppose it would be the same as the full freq tweeter in a 1.2TL mod?
I already installed 194s in my 2.3s and like them a lot more than the SL2000s, and have all the components to upgrade those XOs which I will be doing that in a couple weeks. -
Do a search on TL mod for monitor 7.
Are those Polk stands? If so that is confirmation of that particular style which I saw in some of their advertisements.George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
Yeah, hadn't started a search yet, so will do.
I think they are Polk stands. Anyoneelse sure? I used to own 10s on stands, but that is before digital pics, though I have a 3x5 glossy print somewhere
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Nice find! But, Polk used to spec their speakers without the more accurate -3dB ratings. The Monitor 7 are probably close to the PSB Passif 50 in bass response. The Passif 50 is a far better speaker than the original Passif II model. The Passif IIs would cost about the same with inflation as the Passif 50s now and the Passif IIs were considered a genuine bargain like the Polks were.
I'm not sure but I think a pair of original Passif IIs, if they could be found even in half way decent shape, would be around $200. I'm also guessing that a new Monitor 7 would probably be around $2.5K a pair. As long as there are original Monitor 7s around and Polk sells replacement tweeters it likely makes it difficult to justify bringing a new version to market. Polk built them good!
