Log in to post
|
Print Thread |
|
|
|
|
Off-Topic
|
Joined: Jun 2000
Posts: 2,217
Veteran
|
OP
Veteran
Joined: Jun 2000
Posts: 2,217 |
. I want to power some speakers via batteries. I have an old set of Boston Acoustics satellites that sound great. A pair of 2in satallites and a ported subwoofer around 4 inches. The sub is smaller than a shoebox.
The battery store near me sells sealed lead acid 12 volt batteries. They have one rated at 6 amp hours for $20. Good price if it works.
How do I know if the battery is sufficient to run the pseakers for 3-4 hours? The closet I can get to a power rating is when I look on the wallwart AC adapter is says "1500mA." If that means that the speaker draw 1.5 amps, then a 6aH battery will be good for 4 hours. That would work.
But is that true? Does 1500mA on the wallwart mean that the system draws 1.5 amps? Is there some other spec I need to know about?
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Apr 2011
Posts: 7,294
Veteran
|
Veteran
Joined: Apr 2011
Posts: 7,294 |
Power supplies PROVIDE power. Devices DRAW power. What is the power requirement of the speakers? It should be on the speakers. I would call Boston Acoustics and see what they say your quirements are. You may have to have more than 1 set for longer gigs.
I smashed the hell out of my car today. When the cops came I told him "Officer, that guy was BOTH texting and drinking a beer." The cop said "Sir, he has every right to do that. I mean, it's HIS living room..."
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Jun 2000
Posts: 2,217
Veteran
|
OP
Veteran
Joined: Jun 2000
Posts: 2,217 |
. >>>..What is the power requirement of the speakers?...>>>
That is what I don't know. Its not printed on the label or anything.
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: May 2003
Posts: 8,021
Veteran
|
Veteran
Joined: May 2003
Posts: 8,021 |
Let's see if I can explain this. The AH rating of a battery is based on a 20 hour test. How many amps can it draw continuously so that at the end of 20 hours the battery is at 10.2 volts DC. An example: If a battery is rated at 200 AH that means it was capable of a 10Amp draw for 20 hours before reaching 10.2 VDC. The issue here is that just because a 200AH battery can draw 10 Amps for 20 hours doesn't mean it can draw 200 Amps for one hour. So 6AH is not much here. 6/20= .3 Amps. That Batt will handle .3 amps for 20 hrs before it reaches 10.2 VDC. So how many amps will it handle for 4 hrs? Look at the chart for the battery. The other key here if you picked up on it is 10.2 VDC. This is way lower then then usable voltage of most electronics. This is what really skews the AH rating of batteries. BTW I was the head of the electronics Dept. for the biggest yacht builder in the country. Big Sail boats. Lots of batteries
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: May 2003
Posts: 8,021
Veteran
|
Veteran
Joined: May 2003
Posts: 8,021 |
BTW if your speakers draw 1.5 Amps @ 120VAC that translates to 15 Amps @ 12VDC
|
|
|
|
|
|
|
|
|
|
|
|
Off-Topic
|
Joined: Jul 2000
Posts: 25,799
Veteran
|
Veteran
Joined: Jul 2000
Posts: 25,799 |
The power supply rating of 1500mA is the maximum current it can safely provide. It does not mean the speakers actually require that much power. However, it's a reasonable bet they require more than one amp, or they would have supplied a cheaper walwart rated for 1000mA or so.
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
|
|
|
|
|
|
|
|
|
|
|
|
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.
|
|
|
|
|
|
|
|
|
|
|
Convenient Ways to Listen to Band-in-a-Box® Songs Created by Program Users!
The User Showcase Forum is an excellent place to share your Band-in-a-Box® songs and listen to songs other program users are creating!
There are other places you can listen to these songs too! Visit our User Showcase page to sort by genre, artist (forum name), song title, and date - each listing will direct you to the forum post for that song.
If you'd rather listen to these songs in one place, head to our Band-in-a-Box® Radio, where you'll have the option to select the genre playlist for your listening pleasure. This page has SoundCloud built in, so it won't redirect you. We've also added the link to the Artists SoundCloud page here, and a link to their forum post.
We hope you find some inspiration from this amazing collection of User Showcase Songs!
Congratulations to the 2023 User Showcase Award Winners!
We've just announced the 2023 User Showcase Award Winners!
There are 45 winners, each receiving a Band-in-a-Box 2024 UltraPAK! Read the official announcement to see if you've won.
Our User Showcase Forum receives more than 50 posts per day, with people sharing their Band-in-a-Box songs and providing feedback for other songs posted.
Thank you to everyone who has contributed!
Video: Volume Automation in Band-in-a-Box® 2024 for Windows®
Video: Audio Input Monitoring with Band-in-a-Box® 2024 for Windows®
Video: Enhanced Melodists in Band-in-a-Box® 2024 for Windows®!
We've enhanced the Melodists feature included in Band-in-a-Box® 2024 for Windows!
Access the Melodist feature by pressing F7 in the program to open the new MultiPicker Library and locate the [Melodist] tab.
You can now generate a melody on any track in the program - very handy! Plus, you select how much of the melody you want generated - specify a range, or apply it to the whole track.
See the Melodist in action with our video, Band-in-a-Box® 2024: The Melodist Window.
Learn even more about the enhancements to the Melodist feature in Band-in-a-Box® 2024 for Windows at www.pgmusic.com/manuals/bbw2024upgrade/chapter3.htm#enhanced-melodist
Band-in-a-Box® 2024 DAW Plugin Version 6: New Features Specifically for Reaper®
New with the DAW Plugin Version 6.0, released with Band-in-a-Box® 2024 for Windows: the Reaper® Panel!
This new panel offers built-in specific support for the Reaper® DAW API allowing direct transfer of Band-in-a-Box® files to/from Reaper® tracks!
When you run the Plugin from Reaper®, there is a panel to set the following options:
-BB Track(s) to send: This allows you to select the Plugin tracks that will be sent Reaper.
-Destination Reaper Track: This lets you select the destination Reaper track to receive media content from the Plugin.
-At Bar: You can select a bar in Reaper where the Plugin tracks should be placed.
-Start Below Selected Track: This allows you to place the Plugin tracks below the destination Reaper track.
-Overwrite Reaper Track: You can overwrite previous content on the destination Reaper track.
-Move to Project Folder: With this option, you can move the Plugin tracks to the Reaper project folder.
-Send Reaper Instructions Enable this option to send the Reaper Instructions instead of rendering audio tracks, which is faster.
-Render Audio & Instructions: Enable this option to generate audio files and the Reaper instructions.
-Send Tracks After Generating: This allows the Plugin to automatically send tracks to Reaper after generating.
-Send Audio for MIDI Track: Enable this option to send rendered audio for MIDI tracks.
-Send RealCharts with Audio: If this option is enabled, Enable this option to send RealCharts with audio.
Check out this video highlighting the new Reaper®-specific features: Band-in-a-Box® DAW Plugin Version 6: New Features Specifically for Reaper®
Band-in-a-Box® 2024 DAW Plugin Version 6: New Features Video
|
|
|
|
|
|
|
|
|
|
|
Forums66
Topics81,395
Posts732,497
Members38,441
|
Most Online2,537 Jan 19th, 2020
|
|
|
|
|
|
|
|
|