the optical usbstreamer use an xmos.
ministreamer got a tenor which is readily used. whatever subjective differences i wouldnt know.
TE7022L - Galaxy Far East Corp.
ministreamer got a tenor which is readily used. whatever subjective differences i wouldnt know.
TE7022L - Galaxy Far East Corp.
Have anyone heard the 2x4 hd? How is the dac compared to e.g. Dacmagic or other affordable but ok-sounding dacs?
The dac chip of the Dacmagic is very good, better spec !.... but which is meaning Nothing.... indeed !
To go a little further than the 2x 4 HD you certainly need to go I2S outputt with a Curryman DAC at MINIDSP ! I surmise it while having not heard the 2x4 HD...
If your simple need is a DAC, there is certainly better devices than this MiniDSP active filter !
To go a little further than the 2x 4 HD you certainly need to go I2S outputt with a Curryman DAC at MINIDSP ! I surmise it while having not heard the 2x4 HD...
If your simple need is a DAC, there is certainly better devices than this MiniDSP active filter !
Thanks Eldam
Well, I could need both dsp and dac.
What about 2x4hd vs 4x10hd in regard of dac-spec/sound quality?
Well, I could need both dsp and dac.
What about 2x4hd vs 4x10hd in regard of dac-spec/sound quality?
The 4x10 hd is their old layout ! Some here are betting it will be updated !
The new 2x4 HD is brandnew with better spec ! Also the pcb seems nicer with tantalum caps... fastier with 192 K Hz which is meaning maybe more care about the pcb ! Hard to know without listening... Being positiv I will say the brand new 2x4 HD is a better product if you want to go to active two way !
But behind your question there is : Could I use this as a full range dac but with FIR & IR equalisation as well !
Hey why not, but I'm not able to answer, certainly many can !
The new 2x4 HD is brandnew with better spec ! Also the pcb seems nicer with tantalum caps... fastier with 192 K Hz which is meaning maybe more care about the pcb ! Hard to know without listening... Being positiv I will say the brand new 2x4 HD is a better product if you want to go to active two way !
But behind your question there is : Could I use this as a full range dac but with FIR & IR equalisation as well !
Hey why not, but I'm not able to answer, certainly many can !
The 4x10hd has 8 analogue and 2 digital outputs. Could I link the two digital ones to a 2x4hd and get a 12 channel pre-amp, xo&dsp?
Of course, the nanoDigi 2x8B takes the quality of the DAC's out of the equation. 2 SPDIF in, 4 SPDIF out (total of 8 output channels) and 192 kHz maximum input rate, would let you create up to a stereo 4-way crossover.
Personally, I like passive crossovers right now, but at $170 it's also a great solution as a digital EQ/tone control for stereo listening.
Best,
Erik
Personally, I like passive crossovers right now, but at $170 it's also a great solution as a digital EQ/tone control for stereo listening.
Best,
Erik
Erik;
I presume I then would need a preamp to adjust volume post dacs and pre poweramps?
Best regards
Gisle
I presume I then would need a preamp to adjust volume post dacs and pre poweramps?
Best regards
Gisle
Yep. Or pre-dsp in pre-amplifier of source(s).
4x10HD has option to remote volume adjust, 2x4HD or nanodigi not.
I have 4x10hd and adjust volume in my preamp (which is an AV-receiver with analog pre-out!). Suits you Sir!
4x10HD has option to remote volume adjust, 2x4HD or nanodigi not.
I have 4x10hd and adjust volume in my preamp (which is an AV-receiver with analog pre-out!). Suits you Sir!
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... But I assume you are loosing Bits when you attenuate with these pots if in the digital domain ? At 16 bits material it can be a problem, no ?
I would be surprised if miniDSP doesn't calculate 32bit float or 64 bit. How to dither at the end is a different story, though.
The Answer is closer than you would guess...
http://www.diyaudio.com/forums/mini...-control-how-done-internally.html#post3180746
http://www.diyaudio.com/forums/mini...-control-how-done-internally.html#post3180746
Sorry for OT, but Juhazi; would you care to elaborate on how you set up the mini with eqs, gain, etc to get best sonic quality? I too have the 4x10 and an AV-preamp but have yet to connect the two.
Best regards
Gisle
Some basic questions as well please :
Is it better to use direct digital to use only the dac section of the MIniDSP 4x10 HD ?
Or better to feed it in analog to have an ADC first to 24/96 and use digital volume plot (if possible with this older Minidsp 4x10 HD ?) In my mind a 16 bits can not be converted in 24 bits for digital volume behavior without a loss ? Am I correct or not ?
What to think about the dynamic noise floor level (104 dB) ? Is it enough ?
No thought about the DAC and analog output quality of the former 4x10 HD and the brand new 2x10 HD ?
PS : Are we able to hear a better sound quality when improving the powersupply of the stock one provided by MINIDSP ?
Is it better to use direct digital to use only the dac section of the MIniDSP 4x10 HD ?
Or better to feed it in analog to have an ADC first to 24/96 and use digital volume plot (if possible with this older Minidsp 4x10 HD ?) In my mind a 16 bits can not be converted in 24 bits for digital volume behavior without a loss ? Am I correct or not ?
What to think about the dynamic noise floor level (104 dB) ? Is it enough ?
No thought about the DAC and analog output quality of the former 4x10 HD and the brand new 2x10 HD ?
PS : Are we able to hear a better sound quality when improving the powersupply of the stock one provided by MINIDSP ?
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^Well, not sure if my way can give the best best sonic quality, but:
- be careful to not exceed 0dB level in digital domain/minidsp!
- but be as close to 0dB as possible in dsp
-First - eq of individual driver/channel as flat as possible - use only negative values in gain setting (suppress peaks and rising response)
-when individual drivers/channels have been eq'd, attenuate those drivers/channels that play too loud
- then apply crossovers - lowpass and highpass set type and Hz
- then microadjust spl and driver responses to achieve smooth acoustic slopes
then adjust delays for each channel (start from lowest and second lowest, add delay to the higher-playing driver to get good step and reverse-polarity null)
- check the spl response of the whole speaker (at 1,5m (5-20ms gating) and at listening setup 500ms gating) and listen to it - adjust each driver's gain and perhaps eq to get the sound balance that you like. Long distance-measurements may look awfully wobbly because of room modes!
Minidsp 4x10HD has wide enough dynamic scale for everyman! If you get noise or buzzing, it must be some ground loop or bad wire. I use analog input to minidsp because I want to use all multichannel modes in my AV-receiver which is the "pre-amplifier". I also use the preamplifier for volume control, no problems. I tried digital input sometimes just for fun, but I can't hear any difference.
- be careful to not exceed 0dB level in digital domain/minidsp!
- but be as close to 0dB as possible in dsp
-First - eq of individual driver/channel as flat as possible - use only negative values in gain setting (suppress peaks and rising response)
-when individual drivers/channels have been eq'd, attenuate those drivers/channels that play too loud
- then apply crossovers - lowpass and highpass set type and Hz
- then microadjust spl and driver responses to achieve smooth acoustic slopes
then adjust delays for each channel (start from lowest and second lowest, add delay to the higher-playing driver to get good step and reverse-polarity null)
- check the spl response of the whole speaker (at 1,5m (5-20ms gating) and at listening setup 500ms gating) and listen to it - adjust each driver's gain and perhaps eq to get the sound balance that you like. Long distance-measurements may look awfully wobbly because of room modes!
Minidsp 4x10HD has wide enough dynamic scale for everyman! If you get noise or buzzing, it must be some ground loop or bad wire. I use analog input to minidsp because I want to use all multichannel modes in my AV-receiver which is the "pre-amplifier". I also use the preamplifier for volume control, no problems. I tried digital input sometimes just for fun, but I can't hear any difference.
There's no reason you can't program boosts in EQ. (There is certainly no inherent phase-response related reason not to do this.) You just have to keep in mind what type of leveling and crossover filters will be applied later. Yes, you should not let the signal level reach 0dbFS within the DSP structure, but it doesn't have to be absolutely prevented in doing so with programming. The frequency content of program material is concentrated in the midrange and just because your gain structure might theoretically allow clipping at low frequencies, it doesn't mean it will actually happen.
Cheers,
Dave.
Cheers,
Dave.
Thanks Juha for your answer.
It's a good input if you say you can not hear a difference in OB and with your good B&G planars and the woof unboxed.
BTW, I don't remember the gap with your speaker and the first harmonic distorsion (F2 and further) : is it 40 dB or more above 150 Hz ?
It's a good input if you say you can not hear a difference in OB and with your good B&G planars and the woof unboxed.
BTW, I don't remember the gap with your speaker and the first harmonic distorsion (F2 and further) : is it 40 dB or more above 150 Hz ?
HI,
I don't understand this inputt 🙁 sorry ! DO you mean about the low-pass slope choice of the boosted bass ? In relation also to the high-pass of the mid ?
Where phase behavior is critical when boosting (linkwitz transform?) ?
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