Russ' Phase Linear 700B Going Fully Comp!!!!!!!

[laatsch55]

Simply F*&^%$ awesome, like when I went from my n50 watt Magnavox console to the Spec 1 and Spec 2.

 

[NavLinear]

Simply F*&^%$ awesome, like when I went from my n50 watt Magnavox console to the Spec 1 and Spec 2.

That's an order of magnitude - damn.

 

[laatsch55]

Not so much the power difference, but the difference in sound quality, it doesn't just get your attention, it JERKS it...

 

[NavLinear]

Not so much the power difference, but the difference in sound quality, it doesn't just get your attention, it JERKS it...

How would you compare it with the FC 400?

 

[Northwinds]

How would you compare it with the FC 400?

It would seem to me they would sound comparable but the FC1000B would have an extra 4bbl carb to open up

You guys are killing me here, I would love a FC1000B gracing the top of my stand. Hats off to all involved in bringing the crowning achievement of White Oak to fruitation

 

[Gibsonian]

Nice work Lee. It has begun.

 

[laatsch55]

Scott, I see you understand completely.....

 

[laatsch55]

How would you compare it with the FC 400?

Like in an earlier post there Navinism, a FC 400 with twice the gain...

 

[laatsch55]

It would seem to me they would sound comparable but the FC1000B would have an extra 4bbl carb to open up

You guys are killing me here, I would love a FC1000B gracing the top of my stand. Hats off to all involved in bringing the crowning achievement of White Oak to fruitation

Ron, for some reason up to this point the 700's didn't sound as good as the 400's. What has gotten the 700's to this point is Joes treatment of the signal and power pathways in his boards. He has done a lot of rerouting of sai pathways, and the internal rerouting of wiring and grounding and AC mains has taken it further. When I plugged the 700 in last noght I thought the DC protect relays weren't working. The pots on the 700 were full tilt, and the pre was about a 1/4 output. Put my ear IN THE MID HORN and couldn't hear a thing...the relays had clicked and then my jaw dropped, still draggin the floor this morning. I'm gonna get my ears ringin a bit this morning then the AP will have it's way with it this afternoon.

 

[laatsch55]

Here's an interesting pic...

 

[Gepetto]

Ron, for some reason up to this point the 700's didn't sound as good as the 400's. What has gotten the 700's to this point is Joes treatment of the signal and power pathways in his boards. He has done a lot of rerouting of sai pathways, and the internal rerouting of wiring and grounding and AC mains has taken it further. When I plugged the 700 in last noght I thought the DC protect relays weren't working. The pots on the 700 were full tilt, and the pre was about a 1/4 output. Put my ear IN THE MID HORN and couldn't hear a thing...the relays had clicked and then my jaw dropped, still draggin the floor this morning. I'm gonna get my ears ringin a bit this morning then the AP will have it's way with it this afternoon.

And WO is always working to improve further...

 

[Gepetto]

Here's an interesting pic...

The Quilted Northern is for:

1. When Lee scares the s^&* out of himself?
2. A sound damper to prevent low frequency standing waves?

 

[Northwinds]

So Joe's engineering resulted in more efficient pathways for the various signal paths, this make it faster and more accurate (if I am comprehending what you said correctly)? So what is the difference between the orig 400 vs 700B other then a couple more output powers thingies and 2 sets of speakers outputs. I understand the more power component upgrade but why would they mess with the signal path that would make the 400 the better sounding amp when upgraded or whatever?

I always wondered why you guys just did not eliminate the dual gain controls completely on these? All it will do is increase/decrease your preamps range. The 400 has nada gain controls and obviously it works fine without them??? That would free up some wiring and space right there? You could always come up with a flushfaced fancy logo grommet mounted for the holes? Could even just leave the pots and knobs with nothing wired to them for asthetics. Would that be more efficient/reliable? Meter wires would have to be moved though. Good idea, more room for missle sized caps EDIT: and also free up room on the boards for more Joe Goodness

 

[laatsch55]

The Quilted Northern is for:

1. When Lee scares the s^&* out of himself?
2. A sound damper to prevent low frequency standing waves?

With that setup...both Joe..

 

[laatsch55]

So Joe's engineering resulted in more efficient pathways for the various signal paths, this make it faster and more accurate (if I am comprehending what you said correctly)? So what is the difference between the orig 400 vs 700B other then a couple more output powers thingies and 2 sets of speakers outputs. I understand the more power component upgrade but why would they mess with the signal path that would make the 400 the better sounding amp when upgraded or whatever?

I always wondered why you guys just did not eliminate the dual gain controls completely on these. Really, they add nothing except adjustability and who really uses them? All it will do is increase/decrease your preamps range. The 400 has nada gain controls and obviously it works fine without them??? That would free up some wiring and space right there? You could always come up with a flushfaced fancy logo grommet mounted for the holes? Could even just leave the pots and knobs with nothing wired to them for asthetics. Would that be more efficient/reliable? Meter wires would have to be moved though. Good idea, more room for missle sized caps

Ron, my personal 700 will not have pots and will have one of Skratch's Black faceplates.. I agree, pots add noise and distortion. The 700 was fighting a lot of stuf the 400 wasn't, like twice the power. When you have hat much power rattling around in the same space as the 400's some noisy things happen. The backplane is really a nightmare in the originals, plenty of opportunity for sub-par performance given the topology.
Now as to why Phase didn't do this stuff?/ All component technology as advanced as well as manufacturing methods. Simple things like no ceramic caps in Joe's stuff. The original board was packed with em. It's a hundred little things like that, that add up. This is in essence not the same amp, but the same basic design, a class A/B Fully comp monster, but ever so more refined than the original..

 

[laatsch55]

120 db on the SPL meter sounds as clean as 5 watts, and it does so effortlessly---DAYAM..

 

[laatsch55]

Jani has requested I do something with my jaw, she's tired of tripping over it..

 

[laatsch55]

They're ringin now so I'll swap the 400 for the 700 and put the 700 on the AP and see if my ears are any indication of what I've been yappin about...

 

[NavLinear]

Joe, This thing is DEAD F^&%$^ QUIET!! Less noise than the Silver Shadow 400. Think of a WOPL 400 with TWICE THE F*&^%$# GAIN!!

Like in an earlier post there Navinism, a FC 400 with twice the gain...

You were so subtle the first post I missed the comparison.

 

[laatsch55]

Sorry, I'll be more demontrative with the next one..