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Parasound Owners Thread - Page 92

post #2731 of 3340
Your preamp is intended to be connected to a high impedance input. But when one leg of the balanced input to the A21 is shared with the unbalanced input and in turn with the other preamp, then you have your preamps connected to a low impedance input, powered up or not. Simple as that.
post #2732 of 3340
Quote:
Originally Posted by davee70 View Post

Your preamp is intended to be connected to a high impedance input. But when one leg of the balanced input to the A21 is shared with the unbalanced input and in turn with the other preamp, then you have your preamps connected to a low impedance input, powered up or not. Simple as that.
Then there's the unintended consequence of accidentally having both pre-amps on at the same time. Although unlikely to happen at first, as complacency sets in there is always that chance and the resultant factor of having both pre-amps running simultaneously could prove catastrophic. Just not worth the risk IMHO. But as others have stated, it's your stuff so have at it.
post #2733 of 3340
who is talking about an a21?
unless you've tried it you have no opinion IMHO
I am bi-amping my Monitor Audio pl300 with 4 JC1
post #2734 of 3340
Quote:
Originally Posted by Torqdog View Post

Then there's the unintended consequence of accidentally having both pre-amps on at the same time. Although unlikely to happen at first, as complacency sets in there is always that chance and the resultant factor of having both pre-amps running simultaneously could prove catastrophic. Just not worth the risk IMHO. But as others have stated, it's your stuff so have at it.

then there is the risk of switching inputs on a make shift BP and having speakers seeing full volume (depending where unity gain is at)
doing it the way I am is much safer for me,,so all you that think you know all do tell me what is the safer way (BTW we listen to 2 channel music in excess of 85 db peaks of 101) and so far it still rocks hard) so you all tell me what clipping is
post #2735 of 3340
Quote:
Originally Posted by darrenbr View Post

then there is the risk of switching inputs on a make shift BP and having speakers seeing full volume (depending where unity gain is at)
doing it the way I am is much safer for me,,so all you that think you know all do tell me what is the safer way (BTW we listen to 2 channel music in excess of 85 db peaks of 101) and so far it still rocks hard) so you all tell me what clipping is

Hey its your gear and if you are happy with it fine.
If you accidentally have both preamps on, then you realize that could be a problem right?

I am not sure that would be covered under the warranty.

I love 85 DB with 101 peaks, rock on smile.gif

- Rich
post #2736 of 3340
Quote:
Originally Posted by RichB View Post

Hey its your gear and if you are happy with it fine.
If you accidentally have both preamps on, then you realize that could be a problem right?

I am not sure that would be covered under the warranty.

I love 85 DB with 101 peaks, rock on smile.gif

- Rich

whats a warranty?
post #2737 of 3340
Wondering if anyone is interested in buying a JC1 in mint condition, was used sparingly in a home theater system that is being dismantled due to downsizing. If interested, PM me.
post #2738 of 3340

A51 any feed back from owners? How good is it :)

post #2739 of 3340
Quote:
Originally Posted by wse View Post

A51 any feed back from owners? How good is it smile.gif

Fantastic.

It absolutely disappears and it has the power to make my Revel Salons sing.
Dynamics are crisp and clear.

I also like the architecture and it sounds great in the first watt where I spend most of my time listening.

Be warned though, it needs some air to breath since it gets warm due to its high class-A bias.
Idling, it uses about 145 watts.

- Rich
post #2740 of 3340
Quote:
Originally Posted by wse View Post

A51 any feed back from owners? How good is it smile.gif
I love mine. It couples well with my PSB Stratus golds and minis. In fact, I'd venture to say, along with my A-31, it's the best amp I've ever owned but considering the only quality amplifiers that I've ever owned have all been Parasound it's hard for me to make any qualified comparison.
post #2741 of 3340
When the A31 came out I wished I had bought it and an A21 instead of the A51 that I had because first, now that I do have an A21, I think it is superior for 2-channel music and second, that's mostly what I listen to. Powering a 5-channel amp to listen in stereo leaves a lot of wasted heat and energy from the unused channels. However, I like my A51 very much, both for surround duty on multichannel music and because it allows me to power a second pair of stereo speakers, which gives me more options and sonic variety.
post #2742 of 3340
I have a set of Paradigm Signature S6v3 and was comparing my Classe CA5200 amp which runs in Class A for the first 60 watts before switching to Class A/B and my pair of Parasound JC1 first in low bias, then in high bias. Although in low bias, the JC1s sound really good and musical, it didn't quite have the warm natural sound I was getting from my Classe. But once I switched over to high bias, the JC1s sounded more like my Classe with the warm, natural sound to the point that it was hard to distinguish between the two. For those of you who own the JC1s, kudos to you. Gotta love the JC1s. Excellent value. Surprised that both my Classe and JC1s sound more similar than not, I looked up the components used for the input stage, driver stage and output stage and noticed they both used the same component type (Discrete JFETs, MOSFETS). Maybe that's why they both sound really good.

I also have an A51 which I had compared to a Bryston 9bst, and liked the A51 better. The Bryston did have slightly more defined bass.
post #2743 of 3340
An A21/A31 combo would be very nice. How does the A21 compare to the JC1?
post #2744 of 3340

Here is what I am thinking about for my five KEF LS50

 

- Oppo BDP-105 as Pre/Pro + Parasound A31 + A23

 

or

 

- Oppo BDP-105 as Pre/Pro + Parasound A51

 

This system is for movies only

 

 

 

For music I use my 800D2 with Classe CA-M600

 

post #2745 of 3340
If you have the space, then the A31 and A23 is plenty for movies. I had originally planned to ues an A31 and two A23s to power a 7.1 system, but the three amps couldn't fit in my rack and I had to go with one A51 and one A23. The A23 has PLENTY of power for the surround speakers, even when listening to music in "All Channel Stereo."
post #2746 of 3340
Quote:
Originally Posted by wse View Post

Here is what I am thinking about for my five KEF LS50


- Oppo BDP-105 as Pre/Pro + Parasound A31 + A23

or


- Oppo BDP-105 as Pre/Pro + Parasound A51

This system is for movies only



For music I use my 800D2 with Classe CA-M600


I'd go with the all one box solution for space and convenience if the price difference isn't too great--unless your rack setup or locations are also a contributing factor.
post #2747 of 3340
Quote:
Originally Posted by moonhawk View PostI'd go with the all one box solution for space and convenience if the price difference isn't too great--unless your rack setup or locations are also a contributing factor.

Yes that sounds good. The only thing is I might like to get 9 or 11 speakers set-up in that room!

 

So if I do a A31 in front and a surround sound processor like the Marantz SR7008, then I can use the amps for surround sound speakers which don't need so much power especially crossed at 80Hz

post #2748 of 3340
Quote:
Originally Posted by wse View Post

Yes that sounds good. The only thing is I might like to get 9 or 11 speakers set-up in that room!

So if I do a A31 in front and a surround sound processor like the Marantz SR7008, then I can use the amps for surround sound speakers which don't need so much power especially crossed at 80Hz
Good choice! I think the A31 is a great amp.
post #2749 of 3340
Quick update.

Today I got an opportunity to do some comparisons between my parasound p5 DAC, the Zdac, and adding the music fidelity v link 192 as well. First off the v link muddied up the highs, I did not like the sound....off to eBay it goes.

I then did some switching between the p5 DAC and zdac. The zdac is clearly superior. Much more detailed and refined. The p5 was decent but not as "crisp".

As a side note I was running a dedicated music pc via usb to each device.
post #2750 of 3340
So I was testing the JC1 with the KEF LS50 with some music, and I thought they sounded pretty good. After awhile I remembered I forgot to turn the sub on.

The extra bass coming out of the LS50 is quite a lot now, haha.

Also, looks like I do have a 120/180/240hz hum, the lift ground switch fixed that...
post #2751 of 3340
JC1 with LS50? Damn. That's a lot of juice!

They already sound very good with the little A23 in my setup.
post #2752 of 3340
Quote:
Originally Posted by drewTT View Post

JC1 with LS50? Damn. That's a lot of juice!

They already sound very good with the little A23 in my setup.

Yup, total over kill, I got an amazing deal on a pair smile.gif They are so sensitive they bring out problems in one of my older RCA cable... Not an easy equipment to setup.
post #2753 of 3340
Try some AudioQuest King Cobra. On clearance at music direct. I used not believe in cables but anyway. Haha
post #2754 of 3340
Ditto for me. Cables were a waste of money until I took a chance and bought some bulk Audioquest Type 4 speaker cable. A good improvement over my stranded 12 gauge(don't remember the brand), and now I'm a believer in solid core cables. In fact I just ordered Audioquest Mamba II from audioadvisor, apparently they are similar to the Cobra.
Quote:
Originally Posted by drewTT View Post

Try some AudioQuest King Cobra. On clearance at music direct. I used not believe in cables but anyway. Haha

Edited by audio4life - 12/7/13 at 12:00pm
post #2755 of 3340
Quote:
Originally Posted by merrymaid520 View Post

Quick update.

Today I got an opportunity to do some comparisons between my parasound p5 DAC, the Zdac, and adding the music fidelity v link 192 as well. First off the v link muddied up the highs, I did not like the sound....off to eBay it goes.

I then did some switching between the p5 DAC and zdac. The zdac is clearly superior. Much more detailed and refined. The p5 was decent but not as "crisp".

As a side note I was running a dedicated music pc via usb to each device.

Quote:
Originally Posted by drewTT View Post

JC1 with LS50? Damn. That's a lot of juice!

They already sound very good with the little A23 in my setup.

That does sound like overkill but they are not that efficient with impedance that drops to 4 ohms and some difficult phase angles:

http://www.stereophile.com/content/kef-ls50-anniversary-model-loudspeaker-measurements

- Rich
post #2756 of 3340
Quote:
Originally Posted by audio4life View Post

Ditto for me. Cables were a waste of money until I took a chance and bought some bulk Audioquest Type 4 speaker cable. A good improvement over my stranded 12 gauge(don't remember the brand), and now I'm a believer in solid core cables. In fact I just ordered Audioquest Mamba II from audioadvisor, apparently they are similar to the Cobra.
Quote:
Originally Posted by audio4life View Post

Ditto for me. Cables were a waste of money until I took a chance and bought some bulk Audioquest Type 4 speaker cable. A good improvement over my stranded 12 gauge(don't remember the brand), and now I'm a believer in solid core cables. In fact I just ordered Audioquest Mamba II from audioadvisor, apparently they are similar to the Cobra.
I think the cables really have to be a good match for the speaker/amp...I also tryed AQ type 4..better than the reg. Monster I was using,but after Three days of break-in ,they just did not gel with my setup..the music seemed disected.. all over the place...replaced them with straight wire crescendos...and THOSE will Neva be replaced!
Guess its just trial and error..you really need too try 4-8 sets of cables in different price ranges to see what works the best.
post #2757 of 3340
Quote:
Originally Posted by esh516 View Post



I think the cables really have to be a good match for the speaker/amp...I also tryed AQ type 4..better than the reg. Monster I was using,but after Three days of break-in ,they just did not gel with my setup..the music seemed disected.. all over the place...replaced them with straight wire crescendos...and THOSE will Neva be replaced!
Guess its just trial and error..you really need too try 4-8 sets of cables in different price ranges to see what works the best.

My Type 4's have been real eye openers for me, too bad about your system.  I searched the net far and wide on Audioquest Type 4 and found no issues as you describe, but as with everything, YMMV.

post #2758 of 3340
Yes..AQ makes excellent cables..type 4 is a great buy..and they look and are built excellent!
Too bad they did not jive well with my setup..but it was then that I discovered stràightwire products.
post #2759 of 3340
coli, drew, and wse:

how are you guys liking the LS50? I should be able to get to audition them in a couple of weeks. Just wanted to know if they're worth all of the accolades. If you guys can chime in with your thoughts on these monitors, I'd appreciate it. I am debating to get these to run in the bedroom 2 channel system.
post #2760 of 3340
Quote:
Originally Posted by woody888 View Post

coli, drew, and wse:
how are you guys liking the LS50? I should be able to get to audition them in a couple of weeks. Just wanted to know if they're worth all of the accolades. If you guys can chime in with your thoughts on these monitors, I'd appreciate it. I am debating to get these to run in the bedroom 2 channel system.

These speakers are some of the best speakers competing with speakers that are two to three time their price. The technology trickle effect from BLADE! I bought five and am running them in a 5.1 system
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