I read the last half of this thread. This seems like a good quality DSP. I had originally thought of using a miniDSP 2x8, but wasn't thrilled with the control ability. So I thought of using a miniDSP MiniSharc, but I would need to get a ADC for input and a multichannel DAC or multiple stereo DACs for output and possible additional buffering and reclocking that could be needed which gets more complicated and expensive. The miniSharc allows for both FIR and IIR filters. Not sure if I need FIR filters for a 3 way speaker build, but I would be giving that capability up to get a DLCP. The benefit of the DLCP is that I can do 2 analog channels in from the preamp output and get 6 balanced channels out for my 3 way speakers. It appears that DLCP owners like the product and they think it sounds good.
So is the software useable now and are you limited to only one configuration of the DSP? The miniDSP allows switching between one of four stored configurations.
So for an analog in DLCP unit with upstream volume control I wouldn't need the input or control boards?
If you use two DLCP do you need to use the input and control boards or can it be done without?
So is the software useable now and are you limited to only one configuration of the DSP? The miniDSP allows switching between one of four stored configurations.
So for an analog in DLCP unit with upstream volume control I wouldn't need the input or control boards?
If you use two DLCP do you need to use the input and control boards or can it be done without?
DLCP owners like their product justyfying its high price especially when input board is considered. Software is a bit flimsy and tricky for beginners but at least useable. You deffinitely want input board for its remote source switching and vol control. You can always upload your customized filter presets via USB but you cannot store them and switch between inside processor. Lack of decent USB audio interface is also pain in the *** in our times, not telling lack of DSD native support or fancy FIR filters. But all of this becomes irrelevant regarding exceptional sound quality from DLCP SPDIF digital inputs. I don't know about analog ones. Clocking and conversion is top-notch and miniDSP is not comparable. Analog balanced I/O circuitry is a marvell in DLCP (hidden under PCB) . FIR is entirely unnecessary for digital x-over design you can create marvelous things properly using IIRs, amps and transducers. If I could name miniDSP as an easy DSP platform, DLCP is an audiophile one.
With the USB issue fixed I'm back onto completing some final aspects around my build which I'd like some advice on.
My next step is to work out how to get features like SMPS, AMP Standby and AMP enable working for all my devices. I’ve read the datasheets several times, implemented some aspects but run into issues trying to achieve this across so many components so I’ve posted here for some input.
The setup consists of the following to drive a pair of speakers bi-amped. This is up and running.
Once I build my SUB’s I will be adding
Any other thoughts appreciated.
My next step is to work out how to get features like SMPS, AMP Standby and AMP enable working for all my devices. I’ve read the datasheets several times, implemented some aspects but run into issues trying to achieve this across so many components so I’ve posted here for some input.
The setup consists of the following to drive a pair of speakers bi-amped. This is up and running.
- 4 UCD’s 180’s w/HXR’s
- 2 SMPS’s
- 1 DLCP
Once I build my SUB’s I will be adding
- 2 UCD 400’s
- 1 more SMPS
- My current setup has the DLCP controlling the SMPS and AMP Standby of 1 SMPS and that SMPS controlling AMP enable of 2 UCD’s. See attached diagrams. With this route I’m not sure the DLCP can control 3 SMPS’s and achieve standby functionality across all devices.
- I’ve been communicating with Hypex who I could resolve this by purchasing a DLCP SMPS and Softstart module. In this case the DLCP SMPS controls power to the DLCP. The DLCP could then control the Softstart and the softstart the SMPS’s and UCD’s. Do others see this a viable option? Seems like a lot of components? Has anyone tried this? I’m dubious about whether I need another SMPS.
- J17 on the DLCP is a Standby Supply Connector. I think this suggests the standby mode of the DLCP can be used by applying a DC current here 6.5-12 Vdc. Silly question, but what part do others see I need to make use of this? This way I’d continue to power the DLCP as I am now.
- Could a customer cable be made up so the DLCP can control 3 SMPS’s. I’m wondering whether a parallel split of the DLCP’s SMPS / AMP Standby output (pins 1 and 2 J16 or J4) could connect to the equivalent inputs of the SMPS’s. I’m happy to make up custom cables as required.
Any other thoughts appreciated.
Attachments
Sure Antana,
I have 2 * SMPS400A180's and 1 SMPS400A400.
One of the SMPSA180's is powering;
- the DLCP connected via J5 on the SMPS to J16 on the DLCP (the black line on my diagram 1 Current).
- The same SMPS is powering 2 * UcD180's from J3 on the SMPS.
My 3rd SMPS is a SMPS400A400 which will power my UCD400's. Not currently in use but will be when I build my Sub's
I have 2 * SMPS400A180's and 1 SMPS400A400.
One of the SMPSA180's is powering;
- the DLCP connected via J5 on the SMPS to J16 on the DLCP (the black line on my diagram 1 Current).
- The same SMPS is powering 2 * UcD180's from J3 on the SMPS.
My 3rd SMPS is a SMPS400A400 which will power my UCD400's. Not currently in use but will be when I build my Sub's
Now is see the images, they did not show on my phone. In your setup wou will always have at least one SMPS enabled. Thats why the DLCP SMPS is introduced.
Anyway, Amp standby and Auto Amplifier Enable on the SMPS units is used as s sort of 'wait for' function. If the DLCP or another sort of logic applies a DC voltage on the Amp Standby pin, the (Auto) Amp Enable output of the SMPS is deactivated. If the Amp Standby pin is pulled low, the (Auto) Amp Enable output is pulled low, providing that the SMPS is fully started. This ensures plop free enabling.
I can explain more, but my time is running up. Have a look at the SMPS DLCP, it will save you on your electricity bill.
Anyway, Amp standby and Auto Amplifier Enable on the SMPS units is used as s sort of 'wait for' function. If the DLCP or another sort of logic applies a DC voltage on the Amp Standby pin, the (Auto) Amp Enable output of the SMPS is deactivated. If the Amp Standby pin is pulled low, the (Auto) Amp Enable output is pulled low, providing that the SMPS is fully started. This ensures plop free enabling.
I can explain more, but my time is running up. Have a look at the SMPS DLCP, it will save you on your electricity bill.
Yes - wasn't a price related choice either. I simply didn't need the input board because I plan to only use 1 source via SPDIF and control the DLCP via USB when required. The source will have SPDIF and USB available.
ds23man; How do you adjust your volume with the digital input? And you need the controller also to put the DLCP in standby.[/QUOTE said:
It is perfectly possible to use a DLCP without the ***-on set, but you will lose some features, like the volume control and stand-by (or you have to implements is your self).
I would not recommend putting some analogue volume control between the UcD's and the DLCP, just use your PC's volume control (if connected via SPDIF).
If your use the DLCP SMPS (in combination with the add-on set) you can put all your connected SMPS400's in standby, saving the idle power. You can use the remote to switch the whole set on.
Or you go for the Softstart. Although it is not meant to use with SMPS unit's, the DIY community had successfully used it with SMPS's. With the Softstart you can use a pushbutton with a fancy LED to switch on your set. In this case you safe the idle power of all the 3 SMPS's.
Naturally, you can also use simple, hard on-off switch. Connect the amps to the (auto) amplifier enable of the powering SMPS's and connect the amp-enable of the DLCP to the Amp-Standby of the SMPS's. In this way the amp's should be in standby/mute as long as the SMPS's are not on working-voltage and as long as the DLCP is not fully booted.
At least, in theory. All by heart, so please check it
I would not recommend putting some analogue volume control between the UcD's and the DLCP, just use your PC's volume control (if connected via SPDIF).
If your use the DLCP SMPS (in combination with the add-on set) you can put all your connected SMPS400's in standby, saving the idle power. You can use the remote to switch the whole set on.
Or you go for the Softstart. Although it is not meant to use with SMPS unit's, the DIY community had successfully used it with SMPS's. With the Softstart you can use a pushbutton with a fancy LED to switch on your set. In this case you safe the idle power of all the 3 SMPS's.
Naturally, you can also use simple, hard on-off switch. Connect the amps to the (auto) amplifier enable of the powering SMPS's and connect the amp-enable of the DLCP to the Amp-Standby of the SMPS's. In this way the amp's should be in standby/mute as long as the SMPS's are not on working-voltage and as long as the DLCP is not fully booted.
At least, in theory. All by heart, so please check it
Thanks Antana,
I think I'll have to invest in the DLCP SMPS and the Softstart module.
Anyway, whilst I work through that aspect, I've started measuring my new setup with REW.
In regards to the Equaliser Selection of of REW...which profile best corresponds to the DLCP / HFD biquad filters?
I tried REW's Generic profile, flattened out some areas of concern...result was worse than before applied.
It was just a quick rough and ready adjustment, but just thought i'd check with other how they are using DLCP with REW to determine filter settings.
Regards,
I think I'll have to invest in the DLCP SMPS and the Softstart module.
Anyway, whilst I work through that aspect, I've started measuring my new setup with REW.
In regards to the Equaliser Selection of of REW...which profile best corresponds to the DLCP / HFD biquad filters?
I tried REW's Generic profile, flattened out some areas of concern...result was worse than before applied.
It was just a quick rough and ready adjustment, but just thought i'd check with other how they are using DLCP with REW to determine filter settings.
Regards,
I could not find an edit function so I'm making another post to say i found out that I could indeed use my Umik with the HFD software.
After installing ASIO4ALL(again?) and assigning the umik and DLCP as input and output, the 'enable recording' button appeared.
Now I'll have to play with this for a while
Based on what I have read on the DLCP you can chain up to six of them together. It seems to require having the controller and the input boards. Can you use two of them together without additional boards? I am using only one DLCP and 6 channels should be enough, but I am just curious. Only analog in and volume control upstream.
I could not find an edit function so I'm making another post to say i found out that I could indeed use my Umik with the HFD software.
After installing ASIO4ALL(again?) and assigning the umik and DLCP as input and output, the 'enable recording' button appeared.
Now I'll have to play with this for a while
I hope for you it wil work, because the ADC and DAC don not share the same clock and will cause timing problems between different measurements!