krellpwr Posted March 7, 2019 Share Posted March 7, 2019 Is it better to get (2) seperate amplifier to Bi amp or a 4 or 5 channel amp? Quote Link to comment Share on other sites More sharing options...
totalcomfort Posted March 7, 2019 Share Posted March 7, 2019 Both will work fine , I use 1 amp per speaker but only because I needed the xover function. Quote Link to comment Share on other sites More sharing options...
MenloBob Posted March 7, 2019 Share Posted March 7, 2019 One advantage to two different amps is that you can match the different power requirements i.e. a more powerful amp for extra damping on the bass drivers vs. a super clean low wattage for the mid compression. 1 Quote Link to comment Share on other sites More sharing options...
Md5150 Posted March 7, 2019 Share Posted March 7, 2019 I use two amps for my jubes. I've tried many different high end amps on the bass bins and I like my Crown I-tech the best. The bins really come alive with alot of power and higher dampening factor. Class A for tops. Sounds amazing. 1 Quote Link to comment Share on other sites More sharing options...
Chris A Posted March 7, 2019 Share Posted March 7, 2019 13 hours ago, krellpwr said: Is it better to get (2) separate amplifier to Bi amp or a 4 or 5 channel amp? It depends on how loud you listen and if that's extremely high SPL (over 95 dBC consistently), then having separate power supplies in the amplifiers might make a difference if you're really pulling watts out of the amplifiers. ICEpower modules have their own power supplies, and are used a lot in multichannel amplifiers. Chris 2 Quote Link to comment Share on other sites More sharing options...
Coytee Posted March 12, 2019 Share Posted March 12, 2019 I’ve used both on mine a dbx bx1 dbx bx3 and currently a dedicated Crown K2 for each one It all worked fine and the DBX amps were more than sufficient Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted March 12, 2019 Share Posted March 12, 2019 16 minutes ago, Coytee said: and currently a dedicated Crown K2 for each one I use those for my subwoofers, they are 800 Watts into 4 ohms, but I found I only need 1/5th of that power for the LFE channel in Blue Rays. For my JUBES, I used $25 TI chip Amps (class D) with $9, 19 volt power supplies at 30 Watts/channel. With those little cigarette pack amps, I was able to blow people's hair back on drum recordings at 110 DB. K2's are way overkill for Jubes, but hey, what's money. Quote Link to comment Share on other sites More sharing options...
Emile Posted March 12, 2019 Share Posted March 12, 2019 10 minutes ago, ClaudeJ1 said: I use those for my subwoofers, they are 800 Watts into 4 ohms, but I found I only need 1/5th of that power for the LFE channel in Blue Rays. For my JUBES, I used $25 TI chip Amps (class D) with $9, 19 volt power supplies at 30 Watts/channel. With those little cigarette pack amps, I was able to blow people's hair back on drum recordings at 110 DB. K2's are way overkill for Jubes, but hey, what's money. Claude, Interesting Used to have 52wpc (Marantz 2252B) on my 904's (OK; not jubes ) and it sounded very, very good. Switched to a Crown K1 (350wpc??) and believe the bass is indeed tighter (due to the large damping factor ??). Highs seem better also. Getting some JBL 18" bass bins tomorrow for use with my K-510's. Thanks to your comments, I'll hold off buying another Crown ... going to experiment with my 30wpc Marantz 1060 first (OK; prob 45wpc at 4 ohms). Cheers, Emile Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted March 12, 2019 Share Posted March 12, 2019 8 hours ago, Emile said: Thanks to your comments, I'll hold off buying another Crown ... going to experiment with my 30wpc Marantz 1060 first (OK; prob 45wpc at 4 ohms). This is what I used on my Jubes with TADs on K-402's.......................Nobsound Mini Digital Amplifiers TPA3116, which was cheaper and less power than the one shown on the bottom here. Same 19v. laptop power supply. when you have 106-110 db/Watt efficiency in speaker, You get much higher noise from High Power amplifiers like the Crown K2 vs. these little dudes! Even at worse case power output of ONLY 30 Watts per channel in the amps, you have 4 channels working for you...........so That's 120 UNCLIPPED Watts or 20.7 dbWatts added to the 106 worst case efficiency of the Jube Bass bin (less on the K-402's 110 db/W drivers). So 106 + 20.7 = 126.7 db at 1 meter, which is about 120 db in a small room at the sweet spot. If you need to play things louder than this, you are destroying you hearing and most people will run out of the room when you reach this level. I have only done so a few times on really good recordings of live DRUMS and people were amazed that all I used were these inexpensive little amplifiers!! https://www.ebay.com/itm/DC-19V-3-42A-Power-Adapter-Universal-Power-Supply-Charger-Input-100-240V-50-60Hz-/272072625959? https://www.ebay.com/itm/Nobsound-Mini-Digital-Amplifier-TPA3116-HiFi-Power-Stereo-Amp-Black-100W-2/263235435782?epid=2270424656&hash=item3d4a0dfd06:g:xg8AAOSwE1tcYbEL Excuse the black gaffer tape, as it's the quickest way to prevent people from turning the knobs, once their gain is set. The volume control is on the Yamaha Pre Pro. These little amps were all I needed to blow people away. It's kind of an F. You to expensive amps when you own Jubes!! 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted March 12, 2019 Share Posted March 12, 2019 30 minutes ago, ClaudeJ1 said: 120 db in a small room at the sweet spot Awesome Ordering some to try. Thanks Claude Quote Link to comment Share on other sites More sharing options...
Coytee Posted March 12, 2019 Share Posted March 12, 2019 36 minutes ago, ClaudeJ1 said: You get much higher noise from High Power amplifiers like the Crown K2 vs. these little dudes! They certainly might be as quiet as a church mouse.... I know nothing about them. I do however, know what's going on with the K2's... I'm here to tell you.... you can sit in any seat in the room and they are virtually dead silent. Probably as quiet as your church mouse. Gotta love the variable gain controls! Mine (my gains) are (without actually looking or counting clicks) about 25% of their range so they're dead quiet and have enough power to turn it up.... if you want to get stupid loud (as in really stupid) loud, all you need to do is move the gains and you have more stupidity at your demand. 1 Quote Link to comment Share on other sites More sharing options...
Coytee Posted March 12, 2019 Share Posted March 12, 2019 by the way, if those are yours......very very pretty! Quote Link to comment Share on other sites More sharing options...
HPower Posted March 12, 2019 Share Posted March 12, 2019 Well, when I had a pair of speakers similar to Claude, I use to power them with a Classe CA-150 (150wpc @ 8ohm, 300 @ 4ohm) on the bass bins and then a Triode Labs 2A3 SET (3-4wpc) on the K402s... This was in a 15ft x 20ft room. 1 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted March 12, 2019 Share Posted March 12, 2019 9 minutes ago, Coytee said: They certainly might be as quiet as a church mouse.... I know nothing about them. I do however, know what's going on with the K2's... I'm here to tell you.... you can sit in any seat in the room and they are virtually dead silent. Probably as quiet as your church mouse. Gotta love the variable gain controls! Mine (my gains) are (without actually looking or counting clicks) about 25% of their range so they're dead quiet and have enough power to turn it up.... if you want to get stupid loud (as in really stupid) loud, all you need to do is move the gains and you have more stupidity at your demand. ALL power amplifier Specifications for Signal to Noise Ratio are done at FULL OUTPUT. Into 4 ohms, a K2 is a 29 dbWatt amplifier (800 Watts). So when you are using only 1 Watt of power from a K2, you are 29 db closer to the noise floor, which makes the TRUE signal to noise ratio about 71 db vs. 100. In the case of the smaller amp, assuming that it's the same 100 db S/N spec, you are ONLY 14.7 db closer to the noise floor (not 29), so it would be about 85 db signal to noise ratio, or about 15 db BETTER than the Crown K2. That being said, neither one is audible from a seated position, but putting your head in a K-402 at idle might tell a different story. I know I'm getting picky here, but it's how the math works out. 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted March 12, 2019 Share Posted March 12, 2019 8 minutes ago, Coytee said: I do however, know what's going on with the K2's Haha ... yes; have the (less powerful) K1 ... and have had it up to "stupid" levels Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted March 12, 2019 Share Posted March 12, 2019 2 minutes ago, Emile said: Haha ... yes; have the (less powerful) K1 ... and have had it up to "stupid" levels I own Two K2's and One K1 myself, so I know how powerful they are but WAY overkill on any Klipsch speaker, but on a Tapped Horn with a 21" B&C driver that has a monster 6" voice coil, they are mickey mouse amps. 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted March 12, 2019 Share Posted March 12, 2019 OK @ClaudeJ1 ... you made me spend money again Haha ... only $42 Got the 100Wx2 KnobSound on order WITH the transformer (easier than buying them separate). Anyone else interested, here is the link https://www.ebay.com/itm/Nobsound-Mini-Digital-Power-Amplifier-HiFi-Stereo-Amp-100W-2-with-Power-Supply/282997128167?hash=item41e3f17be7:g:UWwAAOSwFSRbkX3U 1 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted March 13, 2019 Share Posted March 13, 2019 1 hour ago, Coytee said: by the way, if those are yours......very very pretty! They were, but I had to downsize. Yes, the guy who built them did a fabulous job. I was sad when they were gone, but not too sad, since I got a matching center channel now. 1 Quote Link to comment Share on other sites More sharing options...
HPower Posted March 13, 2019 Share Posted March 13, 2019 45 minutes ago, ClaudeJ1 said: They were, but I had to downsize. Yes, the guy who built them did a fabulous job. I was sad when they were gone, but not too sad, since I got a matching center channel now. Hey Claude... not as sad as I was to learn they were no longer living in the Motor City. 😂 But, I have my thinking cap on in hopes of getting back close to the audio bliss that those Tigerwood's provided me. 🤔 Quote Link to comment Share on other sites More sharing options...
seti Posted March 13, 2019 Share Posted March 13, 2019 Most of the time I use 45\2a3 DC SET. Sometimes I put the 45\2a3 DC SET on the K403/B&C DE82TN and use various amps on the Jub LF either Luxman MQ60 or Knight PP EL37s or Brook 12A clones. I find myself with the SET more and more these days. I might make a bigger version of that SET amp that takes a 250 triode and try biamping again. I'm also passive couldn't do the active long term. Quote Link to comment Share on other sites More sharing options...
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