[DaYooper]

Anyone seen this?

I just want to know what are the screwdriver and spare screws for?

 

[jmills8]

I just want to know what are the screwdriver and spare screws for?

Bet to open it and change tubes.

 

[Jeffyue]

Bet to open it and change tubes.

Guess more likely for changing battery?

Anyway, I remember somebody (probably Andy) mentioned C9 is not meant for driving full-size headphones. Just wonder for IEM users if there is need for such a powerful output.

We may say this is a portable amp, but I believe using a DX220MAX, N8 or SP2000 would give you a similar power output (at least for IEM user), without the need for an extra DAP.

And the price...

 

[DaYooper]

Guess more likely for changing battery?

Now that I look through the gallery that seems to be it.

 

[jmills8]

Guess more likely for changing battery?

Anyway, I remember somebody (probably Andy) mentioned C9 is not meant for driving full-size headphones. Just wonder for IEM users if there is need for such a powerful output.

We may say this is a portable amp, but I believe using a DX220MAX, N8 or SP2000 would give you a similar power output (at least for IEM user), without the need for an extra DAP.

And the price...

Im sure it can EASILY push most full size headphones. The SP2000 cannot push most full size headphones to their full potential.

 

[arijitroy2]

I'm hoping to use this as a preamp between R8 and BX2 Plus, hopefully that is achievable!!

 

[Pictograms]

I'm hoping to use this as a preamp between R8 and BX2 Plus, hopefully that is achievable!!

Well at least it comes with all the accessories you need to use it... it does seem strange that given the price it was mentioned that a desktop amp would be better for full sized headphones (unless I’m remembering wrong)

 

[arijitroy2]

Well at least it comes with all the accessories you need to use it... it does seem strange that given the price it was mentioned that a desktop amp would be better for full sized headphones (unless I’m remembering wrong)

I remember Andy saying it wasn't neant to drive hard to drive headphones. I have D9200 so it's easy to drive, but might get an open-back planar later hence the preamp option!

 

[Pictograms]

This is exactly our thinking. If full size headphones are your number 1 priority, then please go for a desktop amplifier. Portable amplifier, even as powerful as C9, will not outperform desktop amplifier at the same price, so why should we put full size headphone as primary priority?

We are going to make C9 as good as it can with IEM, and in our experience, it will sound nice with a lot of headphones even when we are not aiming at them directly.

Ah, this part... I guess it’s not that weird to say a desktop rig would be better

 

[DarginMahkum]

I remember Andy saying it wasn't neant to drive hard to drive headphones. I have D9200 so it's easy to drive, but might get an open-back planar later hence the preamp option!

Any specs, though? I haven't seen any output power specs.

 

[Pictograms]

Any specs, though? I haven't seen any output power specs.

Some were posted... just can’t find them right now

 

[Pictograms]

Some were posted... just can’t find them right now

This is the Headphone output specification of C9 Portable headphone Amplifier. We measure the figures out of our production candidate sample, so it should be final, but we reserve the right to fine tune the figures after trail production run.

We are performing the battery duration test right now, will take some time as there are a lot of combination to cover, but I can quote two preliminary data for your reference. Both battery duration readings are achieved at low gain, volume at around 10 o'clock position, with 32ohm loading and standard line in signal (2V for single-ended, 4V for balanced). Since users can swap the C9 battery with two screws only, you can carry an extra set of batteries (4x18650) and double the battery duration if long continuous playback hours is important to you.

• 3.5mm Single-ended phone out, Class AB, Solid state timbre, around 15 hours
• 4.4mm Balanced phone out, Class AB, Solid state timbre, around 10 hours

Cayin will demonstrate C9 portable headphone amplifier, together with complete portable product lineup, at Bejing ZOL 5th Z-HiFi Show starting tomorrow (19-22 November), we can expect more photo and show impression from Chinese social media during the weekend.

Here

 

[arijitroy2]

Any specs, though? I haven't seen any output power specs.

I did see them in this thread some monthd back, let me search.

 

[DarginMahkum]

Here

2600 mW @ 32 ohm is more than plenty to properly drive 95% of HPs out there.

 

[Pictograms]

2600 mW @ 32 ohm is more than plenty to drive 95% of HPs out there.

Yea it’s more than my Ha-1a had 1400 vs 2600 @32ohm
So it’s interesting to have a qualifier that a desktop amp would be better with full sized phones