Icom 7300: Dynamic Microphones & Preamps
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- Опубліковано 28 лип 2024
- The Icom 7300 has a great microphone right out of the box, but if you want to have both hands free you might be looking for a broadcast-style microphone that you mount on a boom. I’m using a Heil PR781 microphone and a ART Studio V3 Tube Preamplifier. This combination gives me amazing results and I get complements all the time on my audio. If you’re looking for a pre-amp, I highly recommend the ART Studio V3 Tube Pre-Amp. #HamRadio #Icom7300 #Preamplifier
Buy the ART Studio V3 Pre-Amp: amzn.to/3m2QLAQ
Buy the Heil PR781 Microphone: amzn.to/3xQ706H
Buy the Heil FS-3 Foot Switch: amzn.to/3yPGHPj
==== Recommended Audio Settings from Heil as a starting point ====
= Dynamic Microphone with NO PRE-AMP =
Mic gain set between 65 to 85. Pay attention to the ALC and try and keep it below 75% of the ALC meter.
Compression ‘On’ set to 1 or 2.
= Equalization settings for TX in the ICOM 7300 settings =
Normal conversation | Bass -1 to +2 Treble +3
DX and contest use | Bass -3/-4 Treble +4
= My microphone settings with the Heil PR781 and my Studio V3 Pre-Amp =
Mic gain 10 to 15
Compression 1
TX Bass +3
TX Treble +5
TBD Wide 100-2900
Pre-Amp
Input - 1 o’clock
+20 dB Boost
Bass voicing setting
Output 8 o’clock
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Links and resources
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48v phantom power is not needed on the PR-781 since it's a dynamic mic. If you have the ability to leave it off I'd do that but I'd at least clarify that the 781 does not need phantom power so not to confuse your viewers. Otherwise cool video.
You are right. 48v is not needed for dynamic mics.
With the power mods done on it this mic is just awwsome and no need to look to find a better one. The Body of the MH-219 is solid and feels comfy holding it in my hands! I actually run the Heil HMM for iCOM only. Those Mics are rare and hard to find
Very good information here. Thanks.
I have a IC7300 and just got a Heil PRO7 head set and I think it has a Dynamic mic.. I have net started the setup yet. Been working on setups for digital modes. Thanks for the information!
Wow! I was not aware of the preamp. And I have both the Icom IC-7300 and the Heil PR-781. I will think about this, though I am very happy with the Icom IC-7300 hand microphone.
It allows you to have more control of your audio, and also the ability to back away from the 781 so you dont need to swallow it. Without a preamp you need to be right on the mic, with a preamp you can adjust so you can sit back 6”-12” and still get great audio.
The combination of the CC-1-XLR-I + the ART Tube MP studio V3 microphone preamplifier + Heil PR-781 also works very nicely with the Icom IC-9700. Good reports on both FM and SSB.
The Heil PR 40 is a Dynamic mic it works great with the Icom 7300 too ..
Hi Matt, thanks for this presentation - I use the low cost TONOR TC 20 with nearly the same setting - and it works fine - this video helped me to come to a good solution quickly without having to do lengthy tests - thanks for that! by the way - I use the StudioV3 smart aswell. 73´s de DG4SBZ
Hi there K0LWC,
Great presentation! I've decided to follow in your footsteps regarding: a boom-mounted mic with a preamp feeding my IC-7300. Your video helped solidify my gear choice. I've had a couple of the AMP Tube preamps (different models) in the past, and they're great. Sometime when you have a few minutes, could you describe the wiring \ cabling \ and connectors needed to duplicate your setup in this video?
Thanks for the great video, and thanks in advance for any details you could provide.
73
KF0GAW
could you describe the wiring \ cabling \ and connectors needed to duplicate your setup in this video?
Thanks for the great video, and thanks in advance for any details you could provide.
Hey thanks for the video. I just bought everything to do this exact setup. My question is what is your method for switching the mic from using it on your PC to the radio? Thumbs up for the video. Thanks again.
I use a dynamic mic called the Shure SM7B. This mic requires a lot of gain so I use a Cloudlifter CL-1. The Cloudlifter CL-1 boosts the mic gain 20db so you dont have to physically boost your mic gain on the IC-7300 radio. I turn my mic gain on the IC-7300 to 25% and the Cloudlifter CL-1 boosts the IC-7300 output gain to about 85% even the the mic gain on the IC-7300 is physically set to 25%. I also use the DBX 286 for compression if needed. It also has a voice enhancer (High and Low). I even use/added a focusrite 2i2.
excellent video, what settings in the 7300 are you now using with this tube v3 in line, mic gain still on 75% on 7300 and +3 +5 ? and comp on 1 ? thanks alot
Are there any other special cables or devices needed to make this work with the 7300?
Interesting and well presented. What do you use for a cable (XLR to Icom round mic connector) between the preamp and the radio? Commercially made or homebrew? Is a blocking capacitor needed on the input XLR or is there one internal to the preamp? de W5AAG
Is there a solid-state version of the Studio V3?
Did it work without the 1 microfarad decoupling capacitor? I tried with a behringer xenya 802 to enter the signal on the ptt jack. to pin 1 and 7 and put the brum. I have 8V there and it doesn't work. What do you recommend? Thank you very much.
Very intriguing indeed. I would be very curious how the Stufio V3 compares with the Presonus TubePre v2. Any thoughts?
What cable do you need to connect the V3 pre-amp to the Heil CC-1-XLR-I ? (Nevermind, I figured out that the V3 has an XLR output and you use the Heil CC-1-XLR-I cable)
Thank you for the Reply!!! I plug the Heil mic wire into the pre amp (1/8-1/4 adapter in-put), 1/8 cable 0ut-put from amp to ad-1 adapter. When I do that, the VU meter pegs to far right (red). Any idea what I am doing wrong? Turning the dials makes no difference. 🤔
Thanks for the video - you didn't go thru the required cabling. Did you use the AD-1-iC adapter? And if so from the PreAmp to the adapter you just used a 1/4" to 3.5mm TS cable to the adapter?
Hi
What is suggested for audio output settings for AM?
Thanks
William
This is a great tutorial. My ic sm50 has just pack in I think I will try this. Is it on with 400watts output
The Dynamic mic does now need phantom power 48v ... you can just plug it in and go right???
Great video. Do you still think the Heil or 781 is a good microphone. What about the pre amp? Is there better on the market
Hello. I have watched your videos with great interest. How to connect Rode Podmic microphone to Icom Ic-7300? Thank you
Bob Heil recommends a capacitor in line on the hot pin.. Is this mod necessary to prevent damage to the audio circuit going through the front mic jack?. You can also go through the back of the radio without causing any damage to the radios front end audio circuit ..
the capacitor is used to prevent current/voltage (i am not sure) from radio to the mixer/microphone. this current/voltage is used to feed electrec or condenser mics.... +8V on icom's
Depending on what version scarlet focusrite that is in thr background you have you could have just used that as a preamp. They have trs line level output which you could use to drive the mic input on the 7300.btw Alot of that low end you hear in your headphones from the preamp is not going to be heard over the air. For ssb KISS is all you need. A clean punchy signal is much more important than a boomy muddy tone that no one will copy.
I'm bringing the audio from a Heil Studio One mic into a Behringer USB audio interface, then bridging via USB to the 7300 sound card input. Feel that might be a good way with less A/D conversions? Trying to figure out PTT now without having to buy a special front panel cable? Need to understand the 7300 PTT options, MIC connector vs ACC?
Best advice, spend the $20 and trigger the PTT using the mic connector.
As an audio enthusiast myself, it turns out i already have most of the audio equipment to actually do this. Will definitely be trying this out once I get the right cable adapter for my rig. I’m curious how the signal is being routed through your system. I see your connected the mic to the input in the preamp. Then you’re going out of the line out with Heil adapter to the radio? Do you have not have any issues with distortion or anything since your sending a line level into the radio? I also see that you’ve got the scarlet in the background as well. Do you happen to use that in the chain somewhere?
Bonjour fonctionne t'il avec un micro behringer XM8500?
73s
F4JQY
Great website!
Do you have a video on newbie setup for antenna with the icom 7300? I just got my license, but know little about actually setting up my first base station setup. I like th 7300 so I am thinking that is the transceiver I want, but have no idea of antenna.
Get a simple dipole wire antenna and get it up as high as you can!
Where did you get the pre Amp for 7300 lc
Great video. I plan on using this preamp with an older Heil Gold Line dynamic mic. I'm curious about the cabling for this set up. Especially from the preamp to the radio. Any help would be appreciated!
You want a Heil cable. Heil Sound CC-1-XLR-I. It’s plug-and-play with no mods needed.
Hello. You never showed how to connect a microphone to the icom ic-7300. In this case, the audio interface to the radio
could you describe the wiring \ cabling \ and connectors needed to duplicate your setup in this video?
Thanks for the great video, and thanks in advance for any details you could provide.
73 Thanks @ K0LWC
I need to know the same thing
Hi , would it be possible to use say a Rode ProCaster i stead of a 781 using this unit ? The 781 here in Australia is nearly $400+ dollars and the rode is like $200 new . I own soo many mics , just wondering if the Procaster would work with the CC-1-XLR-I ?? Thanks and i hope you have time to answer my question ! 73’s keep up the great videos , subscribed. 👍
Worth money RODE PODMIC ! Just try and forghet HEIL 781 !
Great vid bud. Would it be possible to use this with a basic desk mic? I don't really want to use a boom mic and foot switch. 73s
You mean using the preamp with the desk mic? If so, then more than likely not. The desk mics will have the connector for whatever is used the radios mic input and the preamp will have XLR and 1/4” TRS cables.
Does using this preamp change how you set your tone controls for transmit on the 7300? You had a video with suggested settings for rag chew and pile up contacts, have changed them when using the preamp?
Yes. Here are my ragchew settings.
Bass +1
Treb +5
Compression 1
Using “Flat” on the preamp.
Tube drive at 11 am / Output gain at 1pm
For DX I turn back the bass to -4 and up compression to 2.
@@K0LWC Thanks and thanks for the videos. As a new IC-7300 owner I appreciate the info.
Hello, how is the Scarlett connected to the ic 7300? Through the 13-pin connector or the front connector?
Through the front mic connector with a Heil Icom cable.
How do you monitor you voice and what you played back is that really what the listener would hear ?
No, that's being record into the PC sound card. It's just to give you an idea of how much that tone control knob makes a difference.
I didn’t think the 781 microphone used 48 volts or can you use it with or without phantom power
It’s a dynamic mic with no active element in it so you do not need phantom power. Either he was misinformed of that, but or he simply doesn’t know what it does.
I can’t help noticing that your signal seems to go through two preamps. The one you are talking about as well as through the red one behind it. Could you explain that please?
Read it in the comments; question answered.
Sounds like you got it. The red box is just used so I can feed my XLR mic into my computer via USB. Nothing more. I have pigtail where my mic can be fed into the radio and the USB audio interface at the same time out of the ART preamp.
Trying to connect the Heil PSE6 headset. Can I use the AD-1-IC adapter for this?
Yes you can.
I thinking of having clearer audio, I came across K1GMM youtube, he has a great setup, I would like to start with bare bones setup. Here is what i'm currently running a Yaesu FT-847, I have a Heil PR77D, 3 pin to 8 pin to Yaesu XLR cable, The basic bare bones i want to start with is, ART MP STUDIO PREAMP and the APHEX 204, Oral exciter with optical big bottom, what do I need to get it setup to cables and everything to get going, as Im new to this audio. I do plan on purchasing the ANAN 8000DLE by Apache Labs in a year. I have other rack components I will be purchasing later. For now I want to start with bare bones minimum. I know the APHEX 204, is unable to be purchased anymore, I not sure what would be a replacement for it. And K1GMM, mentioned said DO NOT SKIMP ON THE CABLING, get the top line cabling, so you do not bring RFI comes into your shack. Help or any other components may need, I saw you have also the Focusrite Scarlett , is that another thing i may need?, Do i need a 2 channel? or the Focusrite Scarlett 2i2 3rd Gen USB Audio Interface? Looking out in the furture? I hope you can help or guide me in my start up way to better audio. My callsign is N2TIM, hope to hear from you soon.
I ordered the Studio 3 preamp. I have a Sennheiser HMD 300 Pro with a dynamic mic. Does the Mic need the 48V phantom power?
Thanks,
Brad
No. You can leave it off.
I am a little confused because you said 48 volts was turned on.
Does anyone have instructions how to install the Amp? Do I need any special connectors or other devices? I am running a Icom 7300 and a PR871 just like in the video.
You just need a standard XLR cables that runs from the mic to the amp, and then the Heil Icom cable from the amp to the front of the radio in the mic port.
Hi i was impressed with this and so purchased the art v3 for my 7300 and 781 mic , first impression was good on 20m &40m but then i went on 80m where i normally rag chew , on no all i got was rf interference , no mod , changed all settings , put large ferrite cores with 15-20 turns on all cables , but nothing would get it solved, so run without the v3 and no problem , guess i will have to sell it 😔
Is your gear in the shack grounded?
@@K0LWC yes you can see my channel on the shack build , i also moved the unit in a couple of different places but made no difference, other reviews say this unit is noisy , but for me 80m its un useable
Why would you not use the "DYNAMITE" amp? It is $50 cheaper and you get 28db gain going back into the 7300 radio.
What did you use to connect mic to radio as icom has voltage out on one pin.
I second that question. What is the connection between the pre-amp and the 7300, so the 8v from the rig is not in play?
The Heil CC-1-XLR-I cable blocks that 8v from the radio. That's why using the Heil Icom cable is critical.
How did you connect that preamp with what cable to the ic7300??
There is a pre-made cable from Heil that has the Icom connector on the other end. It's the Heil CC-1-XLR-I adapter cable.
What is the other red box in the background with the xlr leads going in.
It’s a USB interface. It allows me to use my XLR mic as a mic for my computer.
@@K0LWC Thanks.
Hi! how are you. Just started with the hobby and bought a IC-9700. I have a Focusrite 18i20 and want to connect this to my icom. I have seen that you use a Focusrite! My XLR is connected to the Focusrite. Can you tell me how to connect the Focusrite to the IC-9700?? thanks! greetz
Here is what you need to do:
- Make sure you download and install Icom USB driver. Make sure radio isn’t plugged in when doing this.
- Set IC-9700 for USB audio as the microphone.
- Use digital mixer (I use VoiceMeeter Banana) where you make the Focusrite the input audio source and USB Audio Codec as the output.
- Have fun!
@@K0LWC thanks! I use cubase software. Think i have to something with this.
@@K0LWC question is it possible to use the focusrite line out 480 ohm connect with the front micplug 600ohm from the icom?
@@K0LWC thanks its working with voicemeter!
You also can build a custom wire with the DIN rear plug. Check the user manual and adjust the mic to the rear DIN. ANALOG-ANALOG audio. I use a MOTU mixer. Check the impedances from mixer-out and DIN-in
I bought the StudioV3 and it works great with one exception. The RFI that it puts out is horrible. I've put Ferrite beads on everything and it's still getting into my SDR and 7300. Anyone else experiencing this?
No, never had any RFI. You might try exchanging it.
I would like to know what cables to use??
Buy the appropriate cable from Heil for Icom radios so it blocks the voltage.
@@K0LWC so the AD-1-I Adapter Cable it has a capacitor in it?
You’re one or two steps away from discovering ESSB. The Icom two band EQ if set to +5 High and +2 Low sounds great.
I agree that +2/+3 bass and +5 treble is money. It’s about where I’m running these days.
It looks like a Kenwood hand mic.
"...as SSB operators we don't need to be [worried about all that high fidelity].."
Yet, there is that EXTERNAL preamplifier, that gives you that "WARM SOUND..." 🤔🤣
Truth be told, those tiny [cheap] units do not provide a true "warm" sound. There just isn't enough high voltage on the tube to gain the true potential, or "warmth". For that you'll need to step into higher tiers of audio processing. And yes, you CAN hear that difference within the ICOM brickwalled bandwidth.
Still enjoyed this presentation, though a year later. Keep these nicely produced videos rolling. 😎👍
Wait a minute! You run a DYNAMIC mic with the Phantom power on? Dynamic mics don't need phantom power! Phantom power is for Condenser and Electret mics (and the occasional ribbon mic with a built-in amp 'cause the output is too low without one.)
Usually it does no harm to have phantom power on, but there are a few classic/antique dynamic mics out there that phantom power will ruin.
Most multboxes these days all send phantom power, whether the mic needs it or not. If it’s balanced it’s not an issue.
Icom 7300 transceiver.
Hiel pr781 is a dynamic mic and does not use phantom power? Your advising people to run 48v into there dynamic mic this is stupid. Condenser mics sure they need it not heil mics
The RODE POD MIC is better mike. The HEIL PR781 is worse microphone.
What do you like about the Rode over the Heil?
@@K0LWC Have liniarity frecvency response and not bassy and muffled ! Cristal clear audio !
You are ruin the ic 7300
Just use icom mic only
Lies
could you describe the wiring \ cabling \ and connectors needed to duplicate your setup in this video?
Thanks for the great video, and thanks in advance for any details you could provide.
You need a few things:
- The Studio V3
- XLR microphone cable (male to female)
- Heil CC-1-XLR-I Adapter Cable
You'll run the XLR cable from the microphone to the Studio V3 input. Then you'll plug the XLR end of the Heil CC-1-XLR into the output of the Studio V3 and that connects to the 8-pin mic port on the front of your 7300.
Mic --> Studio V3 --> Radio