« previous next »
Pages: [1]   Go Down

Author Topic: HK 255 built-in DAC  (Read 1935 times)

0 Members and 1 Guest are viewing this topic.

Offline seymorebutts

  • Trade Count: (+38)
  • Collector
  • **
  • Posts: 289
  • Liked:
  • Likes Given: 1
HK 255 built-in DAC
« on: Oct 09, 2011 at 12:36 PM »
Audio Specifications and Features
Stereo Power   65 x 2
Power   50W per channel
High Instantaneous Current Capability   35 Amps
Power Bandwidth   20Hz – 20kHz
Ultrawide Bandwidth Design @ 1W (+0dB / –3dB)   10Hz – 130kHz
Signal-to-noise Ratio (IHF-A)   100 dB
Slew Rate   40V/µsec
Input Sensitivity/Impedance   200mV/47kohms
Power Supply   Independent front & rear
Output DACs   192kHz/24-bit
Quad Crossover Bass Management   Yes
Available Low-frequency Crossover Points   40Hz, 60Hz, 80Hz, 100Hz, 120Hz, 150Hz or 200Hz
Lip Sync Delay per Input   0 – 180 mS
EZ Set EQ Setup   EzSet/EQ™[/size][/size][/size]

Hello! Im trying to play a 96/24 FLAC file from my NMT which is connected via hdmi to my hk255, based on the specs above it can support up to 192/24, kaya lang bakit walang sound na lumalabas sa AVR ko? pero pag yung nmt ko i-connect via analog, lumalabas naman yung tunog.

any idea how i can make this work? ???

thanks!
Logged

Offline Courage

  • Trade Count: (+65)
  • PinoyDVD Legend
  • *****
  • Posts: 11,280
  • Liked:
  • Likes Given: 10
Re: HK 255 built-in DAC
« Reply #1 on: Oct 09, 2011 at 01:10 PM »
WHat's you NMT? WHat's your NMT HDMI settings? I mean how does it output the audio? CHeck the HDMI settings in NMT and try to play with it.
Logged
Walang Setup

Offline louie1

  • Trade Count: (+14)
  • Collector
  • **
  • Posts: 392
  • Liked:
  • Likes Given: 12
Re: HK 255 built-in DAC
« Reply #2 on: Oct 09, 2011 at 02:47 PM »
use coaxial audio output of your NMT to AVR coaxial input1 or 2
connect hdmi cable from nmt to avr hdmi in

set nmt aoudio out : s/pdif : raw

set in avr:
source select source: e.g. NMT
video in : hdmi 1 or check hdmi input at the back of avr
audio in : coaxial 1 or 2 (check coaxial input at the back of avr)
Logged

Offline seymorebutts

  • Trade Count: (+38)
  • Collector
  • **
  • Posts: 289
  • Liked:
  • Likes Given: 1
Re: HK 255 built-in DAC
« Reply #3 on: Oct 09, 2011 at 03:19 PM »
sir courage/louie1,

my nmt is egreat m34a and is connected via hdmi to my hk255, audio and video is passed through the hdmi connection, movies are fine, mp3's, flac that are:

1. Sampling rate                    : 44.1 KHz
    Bit depth                          : 16 bits

2. Sampling rate                    : 48.0 KHz
    Bit depth                          : 24 bits

per pag ganito na, wala ng sound

Sampling rate                    : 96.0 KHz
Bit depth                          : 24 bits

pero pag yung analog connection (L+R) ng nmt ni-rekta ko sa amplifier, nag-play naman

any more suggestions? ???

thanks!


Logged

Offline louie1

  • Trade Count: (+14)
  • Collector
  • **
  • Posts: 392
  • Liked:
  • Likes Given: 12
Re: HK 255 built-in DAC
« Reply #4 on: Oct 09, 2011 at 03:54 PM »
we have same avr...i think one limitation of 255 is passing audio signal on hdmi...my avr firmware is not updated, so i run separate audio input/cable from my nmt to hk255

i can play all flac/mp3 from my nmt(Egreat R200) flawlessly..
Logged

Offline Courage

  • Trade Count: (+65)
  • PinoyDVD Legend
  • *****
  • Posts: 11,280
  • Liked:
  • Likes Given: 10
Re: HK 255 built-in DAC
« Reply #5 on: Oct 09, 2011 at 04:24 PM »
Quote from: seymorebutts on Oct 09, 2011 at 03:19 PM
sir courage/louie1,

my nmt is egreat m34a and is connected via hdmi to my hk255, audio and video is passed through the hdmi connection, movies are fine, mp3's, flac that are:

1. Sampling rate                    : 44.1 KHz
    Bit depth                          : 16 bits

2. Sampling rate                    : 48.0 KHz
    Bit depth                          : 24 bits

per pag ganito na, wala ng sound

Sampling rate                    : 96.0 KHz
Bit depth                          : 24 bits

pero pag yung analog connection (L+R) ng nmt ni-rekta ko sa amplifier, nag-play naman

any more suggestions? ???

thanks!




Have you tried connecting coaxial or optical just for audio? And not running audio thru HDMI?
Logged
Walang Setup

Offline Nelson de Leon

  • Trade Count: (+141)
  • PinoyDVD Legend
  • *****
  • Posts: 10,084
  • Let us lead by example
  • Liked:
  • Likes Given: 291
Re: HK 255 built-in DAC
« Reply #6 on: Oct 09, 2011 at 08:27 PM »
Quote from: louie1 on Oct 09, 2011 at 03:54 PM
we have same avr...i think one limitation of 255 is passing audio signal on hdmi...my avr firmware is not updated, so i run separate audio input/cable from my nmt to hk255

i can play all flac/mp3 from my nmt(Egreat R200) flawlessly..

Seperate digital cable?
Logged

Offline Courage

  • Trade Count: (+65)
  • PinoyDVD Legend
  • *****
  • Posts: 11,280
  • Liked:
  • Likes Given: 10
Re: HK 255 built-in DAC
« Reply #7 on: Oct 09, 2011 at 08:44 PM »
Quote from: Nelson de Leon on Oct 09, 2011 at 08:27 PM
Seperate digital cable?

I think what he's saying is NMT -> HDMI -> TV then NMT -> Coax/Optic -> AVR. 2 digital cables connected to nmt
Logged
Walang Setup

Offline Nelson de Leon

  • Trade Count: (+141)
  • PinoyDVD Legend
  • *****
  • Posts: 10,084
  • Let us lead by example
  • Liked:
  • Likes Given: 291
Re: HK 255 built-in DAC
« Reply #8 on: Oct 09, 2011 at 09:14 PM »
Quote from: Courage on Oct 09, 2011 at 08:44 PM
I think what he's saying is NMT -> HDMI -> TV then NMT -> Coax/Optic -> AVR. 2 digital cables connected to nmt

Ok. I feel you.  ;D Usually, mga older AVRs entry to mid level AVRs doesn't have the capability to process audio via HDMI. That might be the culprit. BUT I'm sure, the AVR also plays movie via HDMI and or digital cables in his existing set-up so dapat may sound dun. Not unless the NMT can't process those flac files...  :( An FW update for the NMT might help.
Logged

Offline louie1

  • Trade Count: (+14)
  • Collector
  • **
  • Posts: 392
  • Liked:
  • Likes Given: 12
Re: HK 255 built-in DAC
« Reply #9 on: Oct 09, 2011 at 09:39 PM »
Quote from: Nelson de Leon on Oct 09, 2011 at 08:27 PM
Seperate digital cable?

yes idol!!
nmt coax out--> HKavr255 coax in : for audio ; (i used normal coax cable)
nmt hdmi out--> HKavr255 hdmi in  : for video ; (hdmi cable from nmt ni sir Jim)
Logged

Offline seymorebutts

  • Trade Count: (+38)
  • Collector
  • **
  • Posts: 289
  • Liked:
  • Likes Given: 1
Re: HK 255 built-in DAC
« Reply #10 on: Oct 10, 2011 at 09:02 AM »
hello!

been reading some topics on the net and one "possible" solution is HK255 fw update. i would like to try the optical out of my nmt to hk255 for audio but i dont have the cable(dont really feel the need to have this as i want hdmi all the way). btw, at one instance, i was able to play the 96/24 file but the sound was not good and  of very low volume so i press stop and tried to play it again, nada >:(

thanks for the help guys!

ill look for rs232 cable to upgrade my hk255 fw but after i confirm that it can be done via win7 already

will update this thread ;)
Logged
Pages: [1]   Go Up
« previous next »