FORUM

There won't be any difference with the RPi4. The main difference to the -X model (other than isolation voltage) is that the -X has highly qualified parts that are suitable for harsh industrial or medical environments. It's understandable that this makes a difference in value for hi-end audiophile op...

We happen to have a 4262 in the lab. Yes, you unfortunately need to power the AUX port to get this scope working well. The typical noise out of a standard charging wall wart should not harm the performance of the scope in any way. (Hey, it's just 16 bits and the Picoscope preamp stage is very well d...

We of course accept legacy bank transfers. I don't know why we didn't receive your request. I suggest that you use our public email address that can be found on our "legal" web site. https://intona.eu/en/company/legal Btw: Paypal is the one of most reputable bank companies out there. So, yes, it is ...

Using galvanic isolation requires 100% USB compliant devices and cables. Most audio devices on the market are not tested properly and may stop working when connected to an isolator. What very often helps, is connecting a USB hub in between either the device and the isolator or between the PC and the...

1. It is "dark" isolated. Same result as optical but with another technology. This is done using high speed CMOS isolators by Silicon Labs (formerly -- now sold to Skyworks Solutions). There is no way for direct optical isolation of USB 2.0 today. Using VCSEL (laser) technology like on the USB 3.0 w...

My Pi4B here is working perfectly fine. Maybe there is a USB-incompatibility in your setup. If you use "audiophile grade" USB cables, swap them with off-the-shelf gray USB cables just out of curiosity. You can also try a proper Computer (e.g. MacBook) with your DAC and the Intona isolator and watch ...

The ground is completely isolated and has an air gap to extend the creepage distance even beyond the necessary. AUX is coupled tightly to the isolated side. This is for pushing more current to the device where the DC/DC isolation would be too weak. Any quality branded standard PSU has usually a very...

First, the USB 2.0 portion is the same in all 7055 models: isolation voltage is 5kV RMS and there is no intentional capacitive coupling. Isolation is granted between DC and GHz range (limited by the parasitic capacitance that is everywhere in nature and defined by clearance and air gap which is indu...

The APx series is known to be a bit flimsy when it comes to analog coupled, redriven 3.0 wires. This is what the 7055-C does. I suggest that you replace your isolator by the 7055-D model. This has true digital, optical, protocol-aware isolation. Another quick solution is to use the USB 2.0 portion o...

It looks to me that it's locked in a loop between suspend and wake-up. This is not normal and probably caused by a transient burst. There are burst-hardened firmware versions available that we tweaked for higher levels in IEC 61000-4-4 in medical applications. To discuss this further, please contact...

The isolator needs USB compliant cables. Often, "audiophile grade" cables have the screen or even the ground wire disconnected on one side. This is not compliant at all and this cannot work with galvanic isolation because the isolator breaks the shielding and ground by design and doing this twice is...

I am currently awaiting a Pi4B. I will have a look into the data transfer asap.

An attempt to characterize the effect of latency and jitter within the Intona Ethernet Debugger has been done in the following White Paper.

PDF: [External Link Removed for Guests]
Online-Version: [External Link Removed for Guests]

To comply with security requirements and equipment handling procedures, there is now a statement about handling storage media available.

Online version: [External Link Removed for Guests]
PDF download: [External Link Removed for Guests]

Short answer: does only work with hubs in between. Long answer: doing transparent isolation requires utilization of a complete USB packet frame (side note: this is the reason why you need 100% USB compliant hardware for both host and device). Connecting two isolators in chain would violate the packe...

Maybe.

That points me that the rpi4 does not deliver enough power for the isolator. Is the DAC USB-powered? Which isolator model do you have?

Didn't hear of any rpi related issues. I will try it with some rpi when I am in the lab next time.

Please try the hub between MBPro and Isolator.

They are using an off-the-shelf XMOS chip. aries-g1-detail.jpeg XMOS supplies the USB audio classes (UAC 2.0) to their customers free of charge since ever. There were many, many bugs in this and there is no straight forward USB compliance testing. But doing transparent USB isolation requires 100% US...

About 1): yes! About 2): at least you won't expect to make it worse. 2a) If you expect any difference in your audio quality: this is technically impossible. If somebody is promising any difference in audio by using isolators or filters connected to storage media, he is very likely cheating you. Ther...

Transit time is 2-4 working days. We always ship by UPS Express. I recommend the 7055-B for your system as it has the highest isolation vs. (low) noise floor. But you are not limited to a specific model. All Intona isolators, even those with USB 3.0, will work in your system. USB 3.0 is (if properly...

Sure, I will send you the measurement results by PM.

You're welcome! (Still waiting for the D90)

and I ordered a D90 yesterday! Thanks!

It's interesting to me that your DAC's THD+N measures less than 0.0001%. This is below -120 dB which is not only remarkable but to my knowledge certainly beyond physical limits, even at a BW of 20 kHz. Would you mind sharing more details about this? It just sounds awesome!

Hi Andy, if you are sensitive on the supply rails and are looking for least noise there, the 7055-C is proven to be the most silent. If you are looking for highest overall isolation (so with least parasitic capacitance), you are best with 7055-B. You need to decide yourself at the end, which one is ...

The timestamps are taken from the internal 64 bit counter that is incremented by 10 at 100 MHz, so the resolution 1 ns with 10 ns quantization. That 100 MHz is generated by the FPGA's PLL, clocked by the on-board 25 MHz oscillator (stability: 30ppm). The timestamp is caught exactly at the time when ...

Is the E30 powered by the USB bus or by its own power supply?

Hi, the isolator works transparently and is not aware of any specific protocol such as ASIO. When your DAC does not enumerate correctly, this is most likely an USB compatibility issue of the device. In your specific case, this is in fact an issue of the Clarett. We where in tight contact with Focusr...

Example Wireshark session. Now you observe packet direction, SFD, FCS, ... Because the Ethernet Debugger is connected directly to Wireshark via USB, really every frame is going to be listed. This is a huge improvement comparing to traditional wire tap products which go through the hole network stack...

Available now: [External Link Removed for Guests]

Preliminary user guide now available: [External Link Removed for Guests]

I found a cheap DAC (Asus Xonar X7) in the lab that uses the CM6632A, which is very similar to the CM6631A. Connected to the iMac in front of me, connected via three different Intona isolators lying around. Worked out of the box. All the different I/O is available and usable. So I guess, it's not th...

Available from August 2020.

When the LED goes off, the isolator is detecting the USB sleep mode. If the Orchid is actually just 100 mA asking, the AUX supply won't help. Nevertheless, you can try it quickly using a standard cell phone loader with USB micro connector. But I guess, this won't help. Well, the isolator does the ha...

There are a lot. Just a few of them: Audio: If you have a Dante, AES67 or AVB network running but don't want to star-wire each loudspeaker. This product enables you to daisy-chain tens of additional nodes. In case of AVB, there will be an additional model with active PTP, as required by the standard...

Here it is.

Available now on request.

As long the 12V for the external HDD is a separate, galvanically isolated supply, I don't see any benefit in isolation. An isolator would be more a protection barrier here. But if the 12V HDD supply is maybe an audiophile style linear supply that is shared to power different devices, you will easily...

Here it is: POEsy.

4-port Daisy Chain Switch. Powered by either POE or DC 5.5/2.1 connector. Provides POE as well.

Available very soon.

There is currently no schedule, but we are aware about the customer demand.
I will let you know when we have some cables available for evaluation.

Edit: Not sure if you have these in USB 2.0, but that is all my current set up uses. Unfortunately, this is available in USB 3.0 configuration only. Look at first photo in this thread, the B-Connector is somewhat higher and only fits into 3.0. Although, this cable can of course transmit both USB 2....

Hi Chris, first, I need to rectify the isolation property: Intona 7055-C - which isolates only the DC current Intona 7055-D - which isolates the AC current This is not correct. All isolators do both AC and DC isolation. The difference is that the amount of isolation is specified differently here. Th...

But you haven't made an argument for completely disregarding strand interaction in USB cable. As noted above, I have heard this myself in audio cables, so why can't it also affect data cables given the lack of data correction in audio DACs and the far higher frequencies involved? Couldn't small amo...

But there is no audio on the USB data lines, just coded data which is decoded as audio in the receiver. USB transmission failure cannot affect audio in sense of sound balance but in another way. If data was corrupted on the cable, the receiver will throw a checksum error. In the normal case of USB, ...

With particular regard to the conductors carrying the USB 2.0 signals, are you using stranded or solid-core wire?

Stranded wire. I am eager to learn about the background of your question. What difference would you expect if it was solid-core?

Nice, but I don't make any statements without having serious measurements on this. Just quoting values out of the datasheet of single components that are just a part of the whole system ain't my style.

Those split cables are just usual hubs and work surprisingly good. Try it.

You can use a Y-split power injection cable for powering the isolator at primary side (and not being a hub):
[External Link Removed for Guests]

I don't know if any earlier or later android version works better.
Your problem is clearly the power delivery and the only thing that I suggest is reducing the setup. Isn't it the case that Regen can power the next device? Then you could use your power bank there.

Search found 84 matches