Log in to post
|
Print Thread |
|
|
|
|
Off-Topic
|
Joined: May 2001
Posts: 2,220
Veteran
|
OP
Veteran
Joined: May 2001
Posts: 2,220 |
I have an older Roland SCB-40 Cube Bass amp. It has 2 inputs, labelled "High" and "Low". I've always plugged the Fender PBass into High.
I found the specs for the inputs: High .... -23dBm/330kΩ Low .... -13dBm/ 65kΩ
Those numbers are Greek to me (excuse the pun). What instrument/mic would be appropriate to plug into the Low jack.
Thanks! LLOYD
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Jul 2000
Posts: 25,867
Veteran
|
Veteran
Joined: Jul 2000
Posts: 25,867 |
The horseshoe symbol is ohms, a measure of electrical resistance called impedance. Look up in the manual for each device whether it should go into a high or low impedance input. If you choose the wrong one, you will know because the sound will be distorted or it will seem to be too soft.
BIAB 2024 Win Audiophile. Software: Studio One 6.5 Pro, Swam horns, Acoustica-7, Notion 6; Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus Studio 192, Presonus Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Nov 2008
Posts: 1,382
PG Music Staff
|
PG Music Staff
Joined: Nov 2008
Posts: 1,382 |
Hi Lloyd,
According to the SCB-40's manual, the Low input is for Roland GR Bass Synthesizers or high output guitars.
Cheers Kent PG Music
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: May 2001
Posts: 2,220
Veteran
|
OP
Veteran
Joined: May 2001
Posts: 2,220 |
Thanks guys. I'll just google "high output guitars".
I was hoping I could plug a low or high impedence mic in that jack.
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Jun 2000
Posts: 2,475
Veteran
|
Veteran
Joined: Jun 2000
Posts: 2,475 |
Bottomline up front (BLUF) : Plug the P Bass into the HIGH
------------------- Your Fender PBass should around 10K ohms (unless you’ve added active pickups or done other PUP mods) , as are most passive electric bases and guitars. This is considered “high” output impedance: between 6K to 10+ K ohms for passive PUP configurations as opposed to say stomp box that has around 100 ohms output or “low” impedance output.
You want to plug high impedance outputs into much HIGHER impedance inputs. 10X or more is a good ROT (rule of thumb) and most all guitar and bass amps have at least ONE 100K to 1M ohm “high” impedance inputs – they may also have “low” inputs but you don’t want to use that for guitar or bass.
You are NOT trying to impedance match in these cases (unlike other audio situations) because if you put a 10K ohm Z (Z=impedance) guitar/bass into a 10K ohm input Z it will simply load down the passive pickups and severely impact signal and high freq’s.
Larry
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: May 2001
Posts: 2,220
Veteran
|
OP
Veteran
Joined: May 2001
Posts: 2,220 |
Thanks Larry! The plot thickens ...
You stated "Your Fender PBass should (be) around 10K ohms ... This is considered “high” output impedance: between 6K to 10+ K ohms".
As shown in my OP, the input marked "Low" on the amp is shown as ... 65k ohms. That figure is closer to my bass output than the input marked "High". Why would I not plug the PBass into the "Low" input?
As you can tell, my lack of understanding on the subject, is underwhelming!
LLOYD S
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: May 2000
Posts: 21,636
Veteran
|
Veteran
Joined: May 2000
Posts: 21,636 |
As Larry said You are NOT trying to impedance match in these cases (unlike other audio situations) because if you put a 10K ohm Z (Z=impedance) guitar/bass into a 10K ohm input Z it will simply load down the passive pickups and severely impact signal and high freq’s. Matching the number is not the goal. You're after the best sound.
Make your sound your own! .. I do not work here, but the benefits are still awesome
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Jun 2000
Posts: 2,475
Veteran
|
Veteran
Joined: Jun 2000
Posts: 2,475 |
+1 (lower into higher)
You'll just have to trust us.
But if you want to "trust but verify" then go ahead, you won't hurt anything IN THIS CASE, but I don't suggest this with certain kinds of microphones or other sensitive gear (i.e., don't just willy-nilly plug in and see what happens)
I suspect plugging the bass (or a guitar) into amps low input will simply suck the volume, tone, and life out of your bass
Good Luck Larry
Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: May 2001
Posts: 2,220
Veteran
|
OP
Veteran
Joined: May 2001
Posts: 2,220 |
I found this on the 'net"
"The recommended minimum ratio of output to input impedance is 1:10. Passive pickups run around 10k, so a minimum input impedance of 100k is recommended, 1meg is better. With only 40k there will be a lot of signal loss."
So that makes sense now. The input on my "Low" channel being only 65k would experience some signal loss. I guess that's what you're trying to tell me.
Thanks guys! LLOYD S
Last edited by Lloyd S; 07/04/18 11:30 AM.
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Jun 2000
Posts: 2,475
Veteran
|
Veteran
Joined: Jun 2000
Posts: 2,475 |
Yep (I think I said ~10x aka ~1:10 or MORE)
Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Apr 2009
Posts: 9,326
Veteran
|
Veteran
Joined: Apr 2009
Posts: 9,326 |
Plug it into each input one at a time. See which one sounds the best.
For the most part, and with a few exceptions, guitar & bass pickups tend to be high impedance but plugging it into one and then the other to see which one sounds the best, without distorting and still presenting a strong signal would be the best bet.
You will not hurt the gear by doing that.
You can find my music at: www.herbhartley.comAdd nothing that adds nothing to the music. You can make excuses or you can make progress but not both. The magic you are looking for is in the work you are avoiding.
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: May 2001
Posts: 2,220
Veteran
|
OP
Veteran
Joined: May 2001
Posts: 2,220 |
Thanks Guitarhacker!
That's just about what I ended up doing. I did some 'net surfing on the specs for the 2 Shure mics I had. Then I just plugged the PBass into the "High" input, and tried each of the mics into the "Low" input until I found something what worked.
Thanks to all for your input and ideas. I used the setup at a gig yesterday and it was fine. Another one today, quite a bit bigger venue. I think that little Roland amp will be adequate.
LLOYD S
|
|
|
|
|
|
|
|
|
|
|
|
Ask sales and support questions about Band-in-a-Box using natural language.
ChatPG's knowledge base includes the full Band-in-a-Box User Manual and sales information from the website.
|
|
|
|
|
|
|
|
|
|
|
User Video: Next-Level AI Music Editing with ACE Studio and Band-in-a-Box®
Band-in-a-Box® 2024 German for Windows is Here!
Band-in-a-Box® 2024 für Windows Deutsch ist verfügbar!
Wir waren fleißig und haben über 50 neue Funktionen und eine erstaunliche Sammlung neuer Inhalte hinzugefügt, darunter 222 RealTracks, neue RealStyles, MIDI SuperTracks, Instrumental Studies, "Songs with Vocals" Artist Performance Sets, abspielbare RealTracks Set 3, abspielbare RealDrums Set 2, zwei neue Sets von "RealDrums Stems", XPro Styles PAK 6, Xtra Styles PAK 17 und mehr!
Paket | Was ist Neu
Update Your PowerTracks Pro Audio 2024 Today!
The Newest RealBand 2024 Update is Here!
The newest RealBand 2024 Build 5 update is now available!
Download and install this to your RealBand 2024 for updated print options, streamlined loading and saving of .SGU & MGU (BB) files, and to add a number of program adjustments that address user-reported bugs and concerns.
This free update is available to all RealBand 2024 users. To learn more about this update and download it, head to www.pgmusic.com/support.realband.htm#20245
The Band-in-a-Box® Flash Drive Backup Option
Today (April 5) is National Flash Drive Day!
Did you know... not only can you download your Band-in-a-Box® Pro, MegaPAK, or PlusPAK purchase - you can also choose to add a flash drive backup copy with the installation files for only $15? It even comes with a Band-in-a-Box® keychain!
For the larger Band-in-a-Box® packages (UltraPAK, UltraPAK+, Audiophile Edition), the hard drive backup copy is available for only $25. This will include a preinstalled and ready to use program, along with your installation files.
Backup copies are offered during the checkout process on our website.
Already purchased your e-delivery version, and now you wish you had a backup copy? It's not too late! If your purchase was for the current version of Band-in-a-Box®, you can still reach out to our team directly to place your backup copy order!
Note: the Band-in-a-Box® keychain is only included with flash drive backup copies, and cannot be purchased separately.
Handy flash drive tip: Always try plugging in a USB device the wrong way first? If your flash drive (or other USB plug) doesn't have a symbol to indicate which way is up, look for the side with a seam on the metal connector (it only has a line across one side) - that's the side that either faces down or to the left, depending on your port placement.
Update your Band-in-a-Box® 2024 for Windows® Today!
Update your Band-in-a-Box® 2024 for Windows for free with build 1111!
With this update, there's more control when saving images from the Print Preview window, we've added defaults to the MultiPicker for sorting and font size, updated printing options, updated RealTracks and other content, and addressed user-reported issues with the StylePicker, MIDI Soloists, key signature changes, and more!
Learn more about this free update for Band-in-a-Box® 2024 for Windows at www.pgmusic.com/support_windowsupdates.htm#1111
Band-in-a-Box® 2024 Review: 4.75 out of 5 Stars!
If you're looking for a in-depth review of the newest Band-in-a-Box® 2024 for Windows version, you'll definitely find it with Sound-Guy's latest review, Band-in-a-Box® 2024 for Windows Review: Incredible new capabilities to experiment, compose, arrange and mix songs.
A few excerpts:
"The Tracks view is possibly the single most powerful addition in 2024 and opens up a new way to edit and generate accompaniments. Combined with the new MultiPicker Library Window, it makes BIAB nearly perfect as an 'intelligent' composer/arranger program."
"MIDI SuperTracks partial generation showing six variations – each time the section is generated it can be instantly auditioned, re-generated or backed out to a previous generation – and you can do this with any track type. This is MAJOR! This takes musical experimentation and honing an arrangement to a new level, and faster than ever."
"Band in a Box continues to be an expansive musical tool-set for both novice and experienced musicians to experiment, compose, arrange and mix songs, as well as an extensive educational resource. It is huge, with hundreds of functions, more than any one person is likely to ever use. Yet, so is any DAW that I have used. BIAB can do some things that no DAW does, and this year BIAB has more DAW-like functions than ever."
|
|
|
|
|
|
|
|
|
|
|
Forums66
Topics81,636
Posts735,305
Members38,522
|
Most Online2,537 Jan 19th, 2020
|
|
|
|
|
|
|
|
|