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Author Topic: New/Hot Item Headphone Amplifier Today  (Read 13044 times)

Offline K3cT

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Re: New/Hot Item Headphone Amplifier Today
« Reply #135 on: Dec 14, 2017, 15:29:26 »
Belum... Gw cuma pernah denger KGSS klasik. Yang HV gw liat udah beda banget desain-nya cui... suaranya pasti lain sama sekali.

Dynalo, Dynahi ama Beta 22 ini semua desain satu aliran. Kind of old school actually... Ini postingan idola elu soal ini, gw quote:

Quote from: Kevin Gilmore
Fully complementary: a transistor in the top half of a circuit is matched by a transistor of opposite polarity on the bottom half of the circuit.

Slew rates are identical or close to identical in every section of the amplifier.

 

Fully differential: input signals with common mode noise with respect to ground are ignored.

Special care for electrostatic amps, for which the outputs both go up and down with respect to ground for

common mode noise, but the bias would therefore change for signicant amounts of dc at both inputs.

 

Symmetry: Everything is active in both directions. The result of fully complementary.

 

Tubes can be fully differential, lots of circuits exist. Tubes can never be complementary as there is no such

thing as a p-channel tube. The output circuit of a circlotron can be considered as fully symmetric, but the

drive circuit is anything but.

 

Dynalo, dynahi,dynafet,b22 and B24 are all fully complementary, fully differential and fully symmetric.

Lots of power amps over the years are the same. Very very few dynamic headphone amps do this.

Mainly due to cost issues.

 

The electrostatic circuit above is all of the right things. But the required super-symmetry

causes the input impedance to be way low. Plus a huge amount of parts, lots and lots of heatsinks

and board area.

 

kgss, kgsshv, kgbh, T2 and every other stax amp are balanced and have differential inputs, but

are not symmetric and definitely not complementary either. One of the results is that power supply

noise and drift are now a significant issue.

Source: https://www.head-case.org/forums/topic/8327-im-on-a-roll-the-kgsshv/?page=11&tab=comments#comment-387893
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Offline winzzz

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Re: New/Hot Item Headphone Amplifier Today
« Reply #136 on: Dec 14, 2017, 15:49:33 »
lol idola donk. ya si gilmore kan emang ambil prinsipnya si nelson pass jadi desain-nya mirip2 kek ampli speaker. dan ampli speaker juga hampir tidak ada perubahan. ooooo... cuma super symmetry dynalo/dynahi sama dynalo/dynahi beda donk? atau sama aja? penamaannya sih ribet sumpah, mana thread mencar-mencar lagi. itu carbon keknya mank projek-nya lama bener sih. kebanyakan masih lebih demen bhse sih, carbon kalau sama 009 katanya terlalu bright. si spitzer juga kalau tidak salah juga lebih demen 007mk2 mod-nya dia daripada 009. yang menarik itu 2 ada projek baru sih, kek lumayan banyak projeknya cuma projek low cost stats amp-nya, kalau beneran bisa murah bener, asik sih, stats jadi lebih terjangkau
{material * ( looks + exotic names )/2 } * price = sound quality performance
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Offline K3cT

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Re: New/Hot Item Headphone Amplifier Today
« Reply #137 on: Dec 15, 2017, 21:44:03 »
Super symmetry itu cara si nelson pass buat dapet signal balance dari 2 channel. Kekurangannya input impedance jadi sangat rendah dan nggak bisa di-drive source normal, kalau gw liat di susy dynalo/dynahi diakalin pake op-amp do bagian input.
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PRM itu ada bassnya tapi ngumpet,
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Offline winzzz

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Re: New/Hot Item Headphone Amplifier Today
« Reply #138 on: Dec 27, 2017, 19:42:13 »
https://www.audeze.com/products/amplifiers/king-mkii

keknya naiknya jauh bener itu harga

{material * ( looks + exotic names )/2 } * price = sound quality performance
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Offline winzzz

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Re: New/Hot Item Headphone Amplifier Today
« Reply #139 on: Jan 24, 2018, 00:51:08 »
sudah lama sih cuma baru tahu juga

http://fluxlab-acoustics.com
{material * ( looks + exotic names )/2 } * price = sound quality performance
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Offline winzzz

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Re: New/Hot Item Headphone Amplifier Today
« Reply #140 on: Mar 22, 2018, 01:35:29 »
{material * ( looks + exotic names )/2 } * price = sound quality performance
( patent pending )

Offline winzzz

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{material * ( looks + exotic names )/2 } * price = sound quality performance
( patent pending )

Offline winzzz

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Re: New/Hot Item Headphone Amplifier Today
« Reply #142 on: Jun 05, 2018, 02:51:28 »
bakal hype nih

Monolith Liquid Platinum Headphone Amplifier by Alex Cavalli $699.99

https://www.monoprice.com/product?p_id=33305


Monolith Liquid Spark Headphone Amplifier by Alex Cavalli $99.99

https://www.monoprice.com/product?p_id=33304


Monolith Desktop Headphone Amplifier and DAC with THX AAA Technology (Dual AKM 4493 DACs & Dual AAA-788 Modules) $479.99

https://www.monoprice.com/product?p_id=24459
{material * ( looks + exotic names )/2 } * price = sound quality performance
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Offline hebra

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Re: New/Hot Item Headphone Amplifier Today
« Reply #143 on: Jun 05, 2018, 21:59:08 »
bikin brand baru lagi tuh org?
Hebra Definition Shop:


CUSTOM CABLE For IEM HD AC + UETF10, UM3x, SM3v2, Shure, IE8 Pin, IM series, FitEar

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Offline winzzz

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Re: New/Hot Item Headphone Amplifier Today
« Reply #144 on: Jun 06, 2018, 00:12:27 »
itu monoprice brand lain, terkenal murah2 barangnya. ini ntah beli license design dia atau kerja sama ga gitu jelas. da kek massdrop lah
{material * ( looks + exotic names )/2 } * price = sound quality performance
( patent pending )

Offline hebra

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Re: New/Hot Item Headphone Amplifier Today
« Reply #145 on: Jun 10, 2018, 17:41:30 »
oh.... baru tau gw, udah turun tahta tuh org?
Hebra Definition Shop:


CUSTOM CABLE For IEM HD AC + UETF10, UM3x, SM3v2, Shure, IE8 Pin, IM series, FitEar

Recable Headphone Portable & Fullsize Detachable & Non Detacable

Audio Interconnects Analogue -Digital

Offline winzzz

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Re: New/Hot Item Headphone Amplifier Today
« Reply #146 on: Jun 11, 2018, 06:23:00 »
dia kek gitu lebih profit gw rasa ,less risk juga. masih banyak org yang demen ama itu nama, harga juga jauh lebih murah. bargain of the century dah...
{material * ( looks + exotic names )/2 } * price = sound quality performance
( patent pending )