Mottlefeeder

Steinberg UR22C will give you Yamaha designed preamps, two channels with global phantom power, one switchable to Hi-z, plus built in low latency HPF, 3-band eq and compression on each channel. It is also a USB powered interface.

6 hours ago, bloke_zero said:

I bought the cheapest one I could get at the time, B-stock 'Arrow' - looking at their new range 'Volt' I don't *think* that does - though it has a compressor emulation.

 

So it's the 'Apollo' range that do hosted plug-ins. Overall I'm really pleased with it. It's very limited audio in out (basically stereo), but has impedance matching and a really nice quality of preamp and D/A. I don't feel that I must go into a studio to get a good signal in.

Nice looking kit, but at £800-£1000 for a dual channel Apollo, I think it would be out of budget for many people looking to fix this specific problem.

David

6 hours ago, BigRedX said:

 

Sorry. In that case I'd be looking for a 1U rack mounted two channel EQ. You should be able to pickup something excellent at a bargain second hand price.

Agreed, a rack-mount two-channel 15-band graphic eq would work, and be cheap to source, but it's big, and you are only using about a third of the sliders. Getting that function in a small box was the starting point of my quest, but when you start adding in the cost of say 2 graphic eq pedals followed by a headphone amp, the cost goes up very quickly.

David

11 hours ago, bloke_zero said:

UAD interfaces have a slot for a very low latency plug in (the interface also acts as the plugin host so you're in their world) . You could put anything in there including EQ.

Thanks for that - I'll check it out. Is it available at the budget end of the range or does it appear part way through?

David

I use straps by Leathergraft (with a 'g') - a Liverpool based small company.

I use the 100mm wide leather-neoprene-suede sandwich ones. 

https://leathergraft.co.uk/shop/ols/products/the-softy-guitar

A simple power supply is not a major problem - it has a fuse, transformer, bridge rectifier and two smoothing capacitors. Your cheapest option to avoid paying out for an amplifier-rated transformer would be to buy two smaller 18-0-18 transformers and wire the outputs to give 36-0-36. That's still £40+ just to see if it works...

Connecting to the board would be neater with the right plug, although you could just bypass the plug as in the photo - you could hard-wire it, or use an XLR for power and jack for signal.

I'm wondering if the plug is a Molex - they were common at the time, but some were limited to 12v max. They are still used on PC power supplies to disc drives.

David

OK, back to my original question - do you have the amp that this was connected too, in which case you have the mating connector (with or without working electronics connected to it) or are you hoping to source a connector that will fit?

David

4 hours ago, BigRedX said:

...If I wanted EQ on input I'd probably buy a small mixer to put on the front end of the interface. It would have the added advantage of being able to monitor the signals I was recording without having to pass them through the computer first, therefore avoiding any kind of latency.

Thanks for your thoughts, but I think we are trying to solve different problems. I'm looking for eq between a mixer and IEMs to compensate for damaged hearing. A dedicated mixer with swept mids is not going to be small, and a typical fixed 3-band eq mixer varies the mids at 2-2.5kHz which is too low.

I had hoped to post this as a viable solution in the IEM bible thread, but it's looking like only one interface offers this facility.

David

Too easy

Are you aiming to mate with it or check out whether it is passing the right signals?

David

Wow - hadn't thought of it that way before.

David

Can anyone fill in the gaps?

Steinberg UR22C - yes

SSL2 - no

Focusrite - no

Presonus - no

Behringer - ?

M-audio - ?

Tascam - ?

Others - ?

Thanks

David

Thanks for that - would work well for the whole band on iems, but less so for the first band member sticking a toe in the water.

We've had a crop of impaired hearing threads recently, so I thought I'd see what was available to help those players.

David

Hi Chaddy.

Thanks for the info - another one to cross off the list.

I'm looking for 'black boxes' with headphone outputs that can store the eq profile of hearing aids. Audio interfaces looked like a good bet based on my existing one, but it seems to be unique in having that facility.

David

I'm interested in finding audio interfaces that remember and apply EQ settings when no longer connected to a PC/Mac/etc.

Can you tell me if this one does?

David

24 minutes ago, Dood said:

Mac users will love ROOM by : https://gingeraudio.com

 

Amongst other features it allows you to run plugins at the end of the signal path outside of a DAW. For example room correction software or EQ you like to add to taste rather than part of the signal path within the DAW. 
 

 

Interesting, and it would be good if there was a pc equivalent, but not so useful for live event monitoring.

David

40 minutes ago, Witch Hazel said:

 

the Focusrite interfaces i've used (2i4 v2, Solo v3, 18i20 v3) don't have any general-purpose eq.  i did just check in Focusrite Control to make sure it wasn't there and i just missed it... the only eq option is the 'air' preamp emulation (which i think is a mild treble boost or something like that). 

Thanks for this 

David

That's clear enough.

2 hours ago, velvetkevorkian said:

I have an SSL2, I'm pretty sure the control panel is very bare-bones, no EQ other than the "vintage warmth" emulation on the preamps.

Thank you - I shall cross that one off the list.

Any comments on M-audio, Tascam, Focusrite, Behringer...

David

May I ask where you found the information about Class C amplifiers being used for audio? My Google searches only give me sites saying Class C is suitable for RF and tuned circuits, but not audio.

David

A question for any audio interface users in the community - what EQ facilities are built in to your audio interface?

The Steinberg UR22C has digital signal processing built in so you can adjust compression and 3-band EQ while it is connected to a PC (with or without a DAW running at the time). When disconnected from the PC, it retains that EQ profile. The screenshot below shows what you can set up.

The advantage for me as a hearing aid user is that I can set up an EQ profile that mimics my hearing aids, and then use the interface as a me-them monitor mixer feeding my IEMs.

Is this facility commonly available, or have I just struck lucky in my choice of interface?

David

Just a thought, if you have LEDs working but no audio at all, it might be worth looking at the voltage doubler first. 

David

17 hours ago, tauzero said:

 

Thanks, the build instructions are probably those on the website - https://schalltechnik04.de/en/instructions/vong-filterung but if there's anything else I'd be glad of it.

 

That's all I've got, sorry.

Having said that, the block diagram shows a fairly conventional set of 'blocks', so you could probably work out the circuit from the components in the vicinity of each i.c.

David

20 hours ago, tauzero said:

@disssa, do you happen to have a schematic for the Vong-Filterung? Musikding said to email Julian from Schalltechnik, which I had already done, and still no response. I saw you'd built one a couple of years ago and I wondered if you might have the schematic.

There is no circuit diagram available from the designer, and the double-sided PCB has been painted on both sides, so it would be difficult to trace the circuit from that.

The instructions include a block diagram but that is all you get.

I think I still have my build instructions; if so I can send you a copy. 

David

Ideally, avoid making it a cube, and aim to have each internal dimension different to the others. The golden ratio (each side 2/3 of the next biggest?) probably doesn't work for a 2 x 10 in-line.

David