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post #31 of 127
Quote:
Originally Posted by 909 View Post
Heard the new EC/SS with the AD811 video amplifier. This new implemented opamp does make a noticeable and positive difference. Take my previous impression ( and this shorter one ) now consider that the AD811 version provides better detail, resolution, separation between instruments, imaging, and PRAT.

A local friend purchased one so I am hoping to possibly get sometime with it in my rig. Probably one of the best SS I've heard under a grand and that it's priced somewhere around $400 is an absolute bargain in my book, especially considering it now sounds even better.

Source: Moth Hyper DAC
Headphones: L3000s, RS-1 (flats), & HD650s

It really drove and controlled all the headphones wonderfully, but particularly noteworthy the RS-1s' bass sound so articulate, tight, and not that boomy bloominess I've associated with them.
damn this thing has peaked my interest. what's the power output at 33ohm? Is it even close to Dynahi in current?
post #32 of 127
Thread Starter 
GAH!!! Please, mailman, deliver mine tomorrow!!!

909, thanks for the positive reinforcement of the new implementation. Curse you at the same time!!!
post #33 of 127
Quote:
Originally Posted by chesebert View Post
damn this thing has peaked my interest. what's the power output at 33ohm? Is it even close to Dynahi in current?
The ECSS will put 3 watts into 32 ohms. Not sure about the dynahi possibly someone else will chime in.
post #34 of 127
Quote:
Originally Posted by chesebert View Post
damn this thing has peaked my interest. what's the power output at 33ohm? Is it even close to Dynahi in current?
It would seem highly unlikely that the EC/SS would be capable of Dynahi levels of current output. The Dynahi will put approx. 7Wrms into a 33ohm load where the stated output (as 909 said) is 3W and it is unclear whether or not that is a peak or rms measurement.

Please note that the fact that the EC/SS has lower power output than the Dynahi does not diminish it in the slightest bit, you don't need anywhere near the output power of the EC/SS, not to mention the Dynahi.
post #35 of 127
any comparison with dynahi/dynamite would be very helpful since I really miss my old Dynahi
post #36 of 127
Quote:
Originally Posted by chesebert View Post
any comparison with dynahi/dynamite would be very helpful since I really miss my old Dynahi
I heard the EC/SS with the first opamp and the dynahi back-to-back about 6 months ago (sources: mod Denon 3910 and Apollo; cables: UR8s). Yet as a preface I think the dynahi is probably the best single-ended solid-state amp I’ve heard with the EC/SS coming a close second to my ear’s musical listening preference. The new AD811 opamp brings the EC/SS much closer in my estimation, but I think the dynahi would be superior—particularly with respect to, dynamics, imaging, instrument separation and soundstage (limited to my use w/ the HD650s). Both have what I perceive and describe as similar positive tube attributes with the EC/SS a bit more tube like. I would need to hear the dynahi and the new EC/SS (AD811) back-to-back, but I surmise I might still tilt my hat to the dynahi. Yet I can’t say it would be a done deal or that clean cut as before since the new EC/SS drives headphones in such a phenomenally musical way with warmth, energy, excitement, hyper revealing detail and extreme precise control. I didn't want to stop listening.

It should be noted, I’ve not heard the RS-1s on the dynahi and I believe the L3000s picked up some minor background noise even with the volume pot near supposedly inaudible listening levels, but I assume that could be fixed or minimized with an adjustment. Also, I preferred the HD650s over the K701s with the dynahi and Denon combo because the later headphone in that system touched on a sensitive I perceived as a bit piercing in the upper register. As far as I could tell today, the L3000s weren’t picking up anything on the EC/SS within safe listening levels without a source playing so I could test it.
post #37 of 127
Quote:
Originally Posted by 909 View Post
I heard the EC/SS with the first opamp and the dynahi back-to-back about 6 months ago (sources: mod Denon 3910 and Apollo; cables: UR8s). Yet as a preface I think the dynahi is probably the best single-ended solid-state amp I’ve heard with the EC/SS coming a close second to my ear’s musical listening preference. The new AD811 opamp brings the EC/SS much closer in my estimation, but I think the dynahi would be superior—particularly with respect to, dynamics, imaging, instrument separation and soundstage (limited to my use w/ the HD650s). Both have what I perceive and describe as similar positive tube attributes with the EC/SS a bit more tube like. I would need to hear the dynahi and the new EC/SS (AD811) back-to-back, but I surmise I might still tilt my hat to the dynahi. Yet I can’t say it would be a done deal or that clean cut as before since the new EC/SS drives headphones in such a phenomenally musical way with warmth, energy, excitement, hyper revealing detail and extreme precise control. I didn't want to stop listening.

It should be noted, I’ve not heard the RS-1s on the dynahi and I believe the L3000s picked up some minor background noise even with the volume pot near supposedly inaudible listening levels, but I assume that could be fixed or minimized with an adjustment. Also, I preferred the HD650s over the K701s with the dynahi and Denon combo because the later headphone in that system touched on a sensitive I perceived as a bit piercing in the upper register. As far as I could tell today, the L3000s weren’t picking up anything on the EC/SS within safe listening levels without a source playing so I could test it.
I guess I am concerned with the holographic quality of EC/SS. Can I be fooled into believing I am not listening to cans? (Dynahi was almost there with HF1, although never with HD650) I will use the amp with HF1 and K701.
post #38 of 127
Quote:
Originally Posted by 909 View Post
Heard the new EC/SS with the AD811 video amplifier. This new implemented opamp does make a noticeable and positive difference.

... now consider that the AD811 version provides better detail, resolution, separation between instruments, imaging, and PRAT.
May I ask how much is the difference ? And if it's worth an upgrade ?
post #39 of 127
does anyone find it interesting that HEED is getting all the noob and EC is getting all the old timers.


EC/SS looks dual mono in design but does EC/SS have any global negative feedback? I can't tell from the layout.
post #40 of 127
Quote:
Originally Posted by recstar24 View Post
Wow, that looks like a baby zana, very nice on the metal. The circuit itself looks pretty different from the original EC/SS run. The biggest difference is what appears to be a DC servo on the new version. I believe that was necessary to stabilize the use of the ad811 video amp, Craig has also mentioned that the best sounding opamps all have some DC offset issues, so basically this new version should be able to run whatever opamp you plug in hopefully. Here is a pic of the old version:

I see 3 chips in the inside shot of newer version EC/SS. I know two of them are the AD811, but what is the thrid one at the front of the amp?

And it looks like the AD811s are just sitting in the chip socket? So does this mean one can try plugging in different opamps and experiment with sound? "Chip-rolling?"
post #41 of 127

The pic above is the previous version...




The pic above is the new version.
post #42 of 127

How to do 220V?

x
post #43 of 127
Here's the Eddie Current Website

Send Craig an email with your concern/question

He's made 220v amps before.
post #44 of 127
Quote:
Originally Posted by JimP View Post
I inquired with TTJV, currently there is no 220V version. Since power supply is external, what other options could work without compromising the integrity of the new EC/SS?

(not too keen to use a step down voltage converter)
It seems you can just buy a wall wart power that takes in 220V and outputs 16Vac?
post #45 of 127
I would play it safe and check with Eddie Current first. Don't guess.
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