Geek Pulse: Geek desktop DAC/AMP by Light Harmonics

[m-i-c-k-e-y]

So the official dimensions are:

Height: 2.3" Width: 6.76" Depth: 8"

 

[AxelCloris]

Plus whatever height the feet add.

 

[CanDude]

Buttons for 3D and power on/off, input switching still via pressing the volume knob:
 

 

[Suopermanni]

Hey guys, not sure if this has been asked but has it been confirmed how much power the amp section of the Pulse will put out at different ohm levels?
 
Last time I checked, it was roughly 3000mW/3W at 16 ohms, though I don't know if anything more has been said. Is there a formula to estimate the power output at different ohms like 32, 150 and 300 ohms?

 

[miceblue]

Power (watts) = [voltage_RMS (volts)]^2 / resistance (ohms)

This is only for estimates though since we don't know how the amp behaves for different loads. It could be voltage or current-limited for example.

The output voltages for the Pulse S/X have been provided by Larry somewhere in the LH Labs forums, but it's hard for me to grab it using a mobile device. >.>

 

[Muinarc]

Anyone that was a part of the Geek Out or has done a crowd funding thing before know what kind of ETA we would expect to receive the emails from LH to confirm/verify what we backed/perks/etc? I've never done one of these so I have no idea.

 

[AxelCloris]

Anyone that was a part of the Geek Out or has done a crowd funding thing before know what kind of ETA we would expect to receive the emails from LH to confirm/verify what we backed/perks/etc? I've never done one of these so I have no idea.

 
With crowd funding it's pretty much a case by case basis. Some companies are excellent about updating, others may go weeks/months in between updates. I didn't take part in the Kickstarter campaign since I found out about it too late so I don't know what information has been sent to backers, just the information that I can publicly see in the updates. I would imagine we'll get the emails confirming the Pulse information some time after the end of the second Indiegogo campaign since people are still able to upgrade their units until Feb 2nd.

 

[kugino]

Anyone that was a part of the Geek Out or has done a crowd funding thing before know what kind of ETA we would expect to receive the emails from LH to confirm/verify what we backed/perks/etc? I've never done one of these so I have no idea.

I've backed a few kickstarter campaigns and, as one might expect, actual delivery times are beyond the original ETAs. Sometimes by half a year. I backed the geek pulse in the second offering and that's a July ETA. I'm not expecting my devices until October or November, realistically. Any sooner and I'll be pleasantly surprised.

 

[Muinarc]

Funny you say that because I have my expectation set for November, that'll be a year and we all want the Pulse done right rather than rushed. Lucky for me in this instant gratification world, I have decent patience

 

[kugino]

Funny you say that because I have my expectation set for November, that'll be a year and we all want the Pulse done right rather than rushed. Lucky for me in this instant gratification world, I have decent patience

That's great perspective and a realistic set of expectations. I'm sure we'll be pleased when we finally get to listen to it.

 

[GaryWA]

Power (watts) = [voltage_RMS (volts)]^2 / resistance (ohms)

This is only for estimates though since we don't know how the amp behaves for different loads. It could be voltage or current-limited for example.

The output voltages for the Pulse S/X have been provided by Larry somewhere in the LH Labs forums, but it's hard for me to grab it using a mobile device. >.>

 

They are both 7Vrms, but on the X, it is halved on the 1/4" headphone output due to the dual mono balanced design, so it is 3.5Vrms on the unbalanced output.

 

[earfonia]

   

They are both 7Vrms, but on the X, it is halved on the 1/4" headphone output due to the dual mono balanced design, so it is 3.5Vrms on the unbalanced output.

 
On the Pulse X, 3.5 Vrms is ok, loud enough for T1 and HD800, but only average listening volume for orthodynamic like Hifiman HE5-LE or HE6.  That means, with Pulse X, ortho must use the balance output to get sufficient loudness.
 
Actually it would be better for 5 Vrms on unbalanced, and 10 Vrms on balanced.  High enough for some headphones that require high voltage.

 

[GaryWA]

   
On the Pulse X, 3.5 Vrms is ok, loud enough for T1 and HD800, but only average listening volume for orthodynamic like Hifiman HE5-LE or HE6.  That means, with Pulse X, ortho must use the balance output to get sufficient loudness.
 
Actually it would be better for 5 Vrms on unbalanced, and 10 Vrms on balanced.  High enough for some headphones that require high voltage.

Don't stop there! I would LOVE a 15V/7.5V amplifier section...

 

[akarise]

Does anyone know if the $199 Geek Pulse deal for the original Geek Out backers still applies for their followup campaign?

 

[uncola]

Are you talking about the $199 black friday deal?  That was only for black friday and only if you wanted a second geek pulse.. afaik