Just make your Parts Express online purchase total more than $98.00 in merchandise and we will ship it fast and ship it free to you.
Free Shipping Offer Details/Exclusions:
Tactile Transducer Projects
Home Subwoofer Projects
Home Audio Projects
Car Audio Projects
Create projects with your own descriptions, photos, design goals, material selection, schematics, and share with other audio enthusiasts.
Shop Parts Express
I tried a few boomboxes, and the sound was not tolerable. I set up a pair of stock B652's and a Lepai 20W amp. The sound was better than a boombox ... which is not a hot recommendation. On that day my neighbors started showing up and asked what was going on. I started pouring homebrew and we wound up having a great afternoon talking and listening and delighting in the malty aroma of the brew kettle. Then it struck me that I could build a portable system out of the pieces I had laying around with only a few critical purchases. The porta-partty idea was born. DESIGN GOALS :: 1) portability, 2) sounds better than a boombox, 3) use up junk laying around my workshop, 4) keep new purchases to a minimum, 5) accommodate two internal and one external source, 6) play duration = five hours, 7) detachable speakers, 8) CD/storage bay, 8) charge port access. Note : my SLA charger can go up to 23V to overcome internal battery resistance. This voltage will zap the Lepai. A break-before-make switch isolating charging and operational voltages is mandatory. ARTISTIC GOALS :: 1) Tron theme to play off the blue volume knob, 2) match the modded B652's. PARTS ON-HAND :: pair of stock B652's, Lepai 20W amp, CD player, Nano2G, CD tower, 6” waffle grills, vintage voltmeter, 2 pairs of Peavey rubber feet, various wood scraps and cab stuffing, plus a zillion little bits and pieces and sacrificial cables in my parts bins. PURCHASED PARTS :: 1/8” stereo panel mount jack, 12V 7.5AH SLA battery, XO parts, 1/4” MDF for the enclosure, 3/32” Lexan for the upper and lower panels, a sturdy handle, magnetic “tape”, hinges and mounting adhesives. BUILD :: formal plans/schematics not included. CorelDraw was used for the artwork. Generically : the enclosure was sized to house the battery, amp and sources, plus storage bay. Battery placement is critical for overall balance while carrying the box. I used CA/5min epoxy almost exclusively rather than brads/screws/staples. Specifically : B652 mods = XO and stuffing per Chris on PE chat, plus waffle grills. Enclosure = overall dimensions are 8.5” X 6.75” X 12.5”; see pics for framing, internal frame to mount the amp that also anchors the battery, a slide out tray for the CD player and iPod; the CD bay is an 8” piece hacked out of a CD tower. Paint job before final assembly. Panels = drilled per layout (see pics). The main panel is screwed down tight. The CD bay and source drawer live behind the hinged upper panel using mag tape like a fridge door. Wiring = follow schematic. Back pane = routed speaker cables through notches then screwed it down tight. Detachable Speakers = added Velcro between enclosure sides and B652s. Partty Time ! IMPRESSIONS :: the audio quality greatly exceeded my design goal of “better than a boom box” as stated by many listeners, professional and casual, both indoors and outside. The box is sturdy and rock solid. The artwork and theme are well received by all. I am glad to be using the CD player and Nano2G after mothballing them for years. Although portable, it's not that road-worthy, but the Velcro holds super tight. I hope this project gives you some ideas. Dig around your parts bin, buy what you need to, and build your own custom porta-partty !!!
About The Designer
My first degree was in Electronics. When I got outsourced, I got a Bachelors in Nursing with Psychiatric focus. As a result, I can repair schizophrenic analog circuits really well. Sometimes I just talk to them, and they start working within normal parameters. Also note that my forum account name somehow got misspelled :: I'm really Droidiphile. Send love letters accordingly.
Project Parts List
Dayton Audio B652 6-1/2" 2-Way Bookshelf Speaker Pair
Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Amp w/Power Supp
6" Economy Speaker Grill
Peavey Large Rubber Feet Set of 4
Dayton Audio DMPC-3.3 3.3uF 250V Polypropylene Capacitor
Jantzen 0.20mH 18 AWG Air Core Inductor
3.5mm Stereo Panel Mount Jack
Penn-Elcom H1053K Surface Mount Handle Black
Add all available items for this project to your cart with one click of the mouse!
If you wish to add or remove products from this projects parts list, you can do so any time in your shopping cart before completing your order.
Start a discussion about the The Porta-Partty :: Androgen Enhanced Boombox project.
DISCLAIMER - Parts Express posts the "Project Gallery" as a community service. Projects displayed have not been tested or evaluated by our staff. We make no warranties whatsoever in regard to the projects' fitness for a particular purpose. Claims of performance or fitness are those of the contributor and not of Parts Express. Project re-production for commercial resale may be a violation of United States patent or trademark laws.
Be the first to hear about new and exciting products,special pricing and incredible deals!
© 1996-2014 Parts Express, All Rights Reserved