CEntrance HiFi-M8 & mini-M8

[IronLung]

Может мне все это снится?)

[Zowie]

Под язык ж!

[kosyakman]

Под язык ж!

Тебе виднее, Лёха!

[vanек48]

Мне тут мой приехал, спустя 7 мес. с момента заказа, я уж было и забыл про него.
А плееры с оптическим выходом, по прежнему только ак100?

[andyDiamond]

Мне тут мой приехал, спустя 7 мес. с момента заказа, я уж было и забыл про него.
А плееры с оптическим выходом, по прежнему только ак100?

100/120
Чел с хедфая заморочился с х5 + кокс-опт конвертер. Но по-моему это уже перебор.

[wxg]

Из свежевышедшего, у Cowon P1 есть оптика. Ну и всех новых Astell&Kern.

[andyDiamond]

Что ковш, что новые калаши дороги, для м8 хватит и ак100 +2 карты по 64. И будет и 160 гектар и приличное юзабилити.

[wxg]

Если взять две по 128, будет 288.

[rebiroot]

Если взять две по 128, будет 288.

А ак100 тянет 2 по 128? Оо

[duduk]

А ак100 тянет 2 по 128? Оо

Также как и 64, после форматирования в фат32

[bk123]

USB-B на LX-версии — вряд ли.

как по обновленным данным ) - питает?

[wxg]

duduk, уже и форматировать не обязательно, в AK100 добавили поддержку exFAT в последней прошивке.
bk123, не питает.

[IronLung]

В теме M8 на head-fi поднялся вопрос о балансности, некий Pink panther утверждал, что разобрав свой экземпляр он убедился в том, что усилитель не предоставляет балансного выхода, а лишь позволяет подключить балансные наушники

The M8 is not a balanced amp.It has a XLR plug which is directly connected to the unbalanced plug.The M8's amplifier is tpa6120 which does not provide balanced output.It is singe ended.Nobody mentioned this before?

I opend up mine, looked at it and measured it.Don't know if there are any differences depending on rev. index.I think it is some kind of misunderstanding in what "balanced" means.They give us the chance to plug balanced headphones without an adaptor; but it ist not a balanced amp (al least my M8 is not a balanced amp).

I do not want to bash the M8.

It is a very good sounding portable hpa.It has enough power to drive my HE-6.The only thing that makes me worry ist that it is not a balanced amp (at least mine is not a balanced amp) but people think it to be a balanced amp. That's all.Regards Martin

HiFi-M8 features a balanced output. The balanced nature of the ouput reduces interference, improves signal to noise ratio and minimizes cross talk between the channels. The amplifier is more sophisticated than what Kenny described. He and I will sit down for a lesson in analog electronics

http://www.head-fi.org/t/622939/the-...m8-thread/4860

---------- Добавлено в 13:58 ---------- Предыдущее сообщение было размещено в 13:51 ----------

He guys, someone brought to our attention that there is concern here. Let me pitch in.

Indeed, the outputs are balanced on the HiFi-M8, as we've said all along. That's still the case and it's not inconsistent with our marketing. The proper way to say that is that they are "impedance balanced." This means that the output impedance on L+ and L- pins (as well as R+ and R- pins) is same and neither wire is directly connected to ground.

On the contrary, with an unbalanced connection (typical three pin headphone connection), the common wire is connected to ground, where the impedance is lower. What happens is the signal that goes out to the headphones travels through a path with one impedance and the signal coming back on the common wire travels through a path of a different impedance. Such circuit is invariably more susceptible to common mode-induced electomagnetic interference and results in more noise.

Our circuit creates a balanced transmission line between the 4 pin output and the headphones. This minimizes common mode interference and results in a cleaner signal with lower noise floor and higher linearity.

Internally, the signal path varies from balanced to unbalanced, depending on engineering decisions at each stage. Our position is that short, well-shielded cable runs do not require a balanced connection, because interference is minimized by shielding. Inside the HiFi-M8'a PCBs, every trace is enveloped in a protective ground layer that together with our stringent RF protection circuitry isolates the trace and practically eliminates interference.

The real problem is not inside the unit, but outside the unit, where signal travels through headphone cables that are 1) long and 2) most of the time unshielded.

In order to combat the electro-magnetic interference on the Headphone Cable, we created the impedance-balanced outputs and they do their job very well. We have never heard complaints of signal degradation with any headphones and many customers prefer the balanced connection for this very reason.

Another potential benefit of a balanced output is the ability to drive twice as loud of a signal. We are giving you that same double output level, but not via a dual line driver, but rather with a single-ended line driver that runs off of a higher supply voltage (+/-10V DC). Two benefits here -- lower distortion AND lower power consumption.

A balanced high-current line driver would require twice as much power and would run the battery down in no time at all, so what we have created is a sound engineering decision -- you get the best of both worlds -- you get loud signal AND balanced lines to your headphones.

These battery-powered devices are tricky to get right, especially with high power outputs and I think that we have struck the right balance, as HiFi-M8 was recently placed on the Wall of Fame at the prestigious Innerfidelity publication, in addition to rave reviewed from many respected industry pubs. We've never heard complaints about the products' sound from our customers. Everyone loves the sound of their HiFi-M8.

If someone got confused with the terminology used on the website, we apologize. This is a complicated subject to put succinctly into marketing collateral.

Let us know if you have any questions. You can email me directly through the CEntrance website.

;
;

[AlexRv]

Так и есть, еще Гудман где-то писал, что все дырки питаются от одного выхода с усилителя.

[IronLung]

AlexRv, разница в раздельной земле: одисеи, как и менторы интереснее играют от балансной дырки

[AlexRv]

У тебя Менторы с балансным кабелем?

[IronLung]

AlexRv, приколись

[AlexRv]

Вот ты засранец! Дай послушать то!

[IronLung]

Так а куда ты их пихать собрался, в недоменторы штоле?

[AlexRv]

Куда нада туда и запихну