Amp/Preamp Asylum

RE: 2nd generation EIGENTAKT PURIFI 1ET6525SA (successor to the 1ET400A)

69.118.107.235

Leo loves music

In Reply to: RE: 2nd generation EIGENTAKT PURIFI 1ET6525SA (successor to the 1ET400A) posted by emailtim on November 25, 2024 at 17:52:21

What is the damping factor? 25A output current is quit weak, can I parallel two these things together?

Follow Ups:

RE: 2nd generation EIGENTAKT PURIFI 1ET6525SA (successor to the 1ET400A) - morricab 06:08:48 12/02/24 (2)
25A is weak...you're a funny guy. If you sent 25A through your speakers it would fuse the voice coil into a solid mass! It would throw your woofer into your lap...
- no my JBL will not melt - Leo loves music 06:09:18 12/07/24 (0)
  My JBL 15" can handle 1200W continuously. No, it will not melt. It stays.
- 50A - Leo loves music 05:38:38 12/07/24 (0)
  Plinius SA-102 is rated 125W@8 ohms. It can output 50A.
Damping factor - emailtim 15:23:35 11/27/24 (0)
This link specifies:

https://purifi-audio.com/eigentakt

Output Impedance in the sub milli-ohm range resulting in a five-digit Damping Factor.

This link specifies:

https://www.soundstagehifi.com/index.php/opinion/1482-the-purifi-puzzle-part-one-the-measured-performance-of-the-eigentakt-amplifier

Another takeaway from this graph is the close spacing of the traces -- all within about 0.1dB of each other. This indicates the amplifier's very low output impedance across its operating range, and its commensurately high damping factor. Although it's not shown here, when we measured the output impedance and calculated the damping factor with a 4-ohm load, we got a very high 1600 from 20Hz to 4kHz -- and from 4 to 20kHz the damping factor rose even higher, to almost 2000.
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2022/03/30 Historical Records CENSORED
RE: 2nd generation EIGENTAKT PURIFI 1ET6525SA (successor to the 1ET400A) - emailtim 15:07:57 11/27/24 (0)
If you want something bridged, with a little more grunt, they have the Mono 1ET9040BA ...
Purify Shop: https://purifi-audio.com/shop

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2022/03/30 Historical Records CENSORED
- https://purifi-audio.com/document/share/57/f6d5c393-72c6-4ae (Open in New Window)
Edits: 11/27/24

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