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 Building a practice Bass amp.
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 Return to top of page · Post #: 1 · Written at 4:57:14 PM on 23 May 2019.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 569

Hullo all, i'm finally well enough to do some more work in the workshop, so started building a practice bass amp to make it easier for me.
My normal Bass is so heavy, or else i'm getting weaker!
The amp is also pretty much a fixture on the floor.
What I want to make are some light weight units so I can grab them throw them in the Yaris and go anywhere.
I'll send in a PDF for Brad to post up covering the first moves, making some parts and starting the cabinets.

Cheers, Fred.

Design of a practice bass amplifier


 
 Return to top of page · Post #: 2 · Written at 4:39:53 AM on 29 May 2019.
Flukeoneseventyfive's Gravatar
 Location: Laidley, QLD
 Member since 16 September 2015
 Member #: 1799
 Postcount: 99

Fred, the cabinets and amps are getting heavier.
I used to carry all the large bins and the amps and gear to jobs, years ago and never thought anything about it.
Drive one to two hours to the job, spend an hour or so setting up, do the four hour job, strip the gear down and load up the car, used to fit all the gear into the 52 Pontiac and drive home, and then unload the gear and cart it back into the house, being an old Queenslander, meant carting it up the steps, that was three to four times a week.
Went to move the Vadis and the quad box the other day, it was a bit of a struggle, I just can't remember them being so heavy, mind you the last time I did any band work, was almost 20 years ago.

Looking forward to you postings on the portable combo amp.
Peter...


 
 Return to top of page · Post #: 3 · Written at 2:04:47 PM on 29 May 2019.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 5497

Document uploaded. My apologies, I have missed a few uploads in the last few days.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 4 · Written at 3:49:32 PM on 29 May 2019.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 569

Hi 75, thanks for that confirmation I feel so much better!!!!!!

Like you, last year I went to move my 300 watt bass bin in the studio. When I made it, I was simply lifting it up and down by myself. This time around I was sure it had been bolted to the floor!! Two of the next generation walked over and picked it up, moved it like it was made of balsa and gave me that look……………..sigh....


Hi Brad, no problems, you may have been a bit busy!!

Fred.


 
 Return to top of page · Post #: 5 · Written at 4:56:02 AM on 30 May 2019.
Flukeoneseventyfive's Gravatar
 Location: Laidley, QLD
 Member since 16 September 2015
 Member #: 1799
 Postcount: 99

G'day Fred.

The other technician I work work with , also a Bass player, has tried a few of the class D amp modules from China.
500wats RMS and they are so light, including the power supply and of course the price is so low, under the $50.00 mark.
I have seen and heard some of the class D bass amps around and have been very impressed, and the weight of the amps, was a shock to the system, you can lift them with one hand.

Good description of your method from winding toroids with the shuttle.


 
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