Search found 21 matches

by Speedskater
Tue May 31, 2016 7:40 am
Forum: Pro Audio Design
Topic: was HYPEX amps cheap surround system
Replies: 59
Views: 76298

Re: HYPEX amps

Why not think about the serious DIY chip amp kits by Tom Christiansen? Key features of the Modulus-86 Rev. 2.1: 65 W (4 Ω), 40 W (8 Ω) output power when using the Power-86 and recommended transformer. Vanishingly low 0.000061 % THD (1 W, 8 Ω, 1 kHz). Ultra-low 0.000067 % THD (40 W, 8 Ω, 1 kHz). Ultr...
by Speedskater
Tue Nov 03, 2015 6:52 am
Forum: Pro Audio Design
Topic: Basic Mixer - 1646 output stage - seeking critique
Replies: 14
Views: 33789

Re: Basic Mixer - 1646 output stage - seeking critique

As always, I'm quick to note that:
In an XLR balanced analog interconnect system, the Pin #1 does not connect to the circuit common (aka ground). Pin #1 is a shield and connects to the chassis at the connector.
by Speedskater
Sun Oct 18, 2015 1:24 pm
Forum: The Peabody Lounge
Topic: beverly hillbilly storm windows and cybernetic heat control
Replies: 37
Views: 105824

Re: beverly hillbilly storm windows and cybernetic heat cont

I hope they engineered these to be accurate after 4 hours and not when first fired up.

That's why audiophiles burn-in their cables for hundreds of hours.
by Speedskater
Wed Sep 23, 2015 7:17 am
Forum: Pro Audio Design
Topic: Laying out a PCB
Replies: 6
Views: 23669

Re: Laying out a PCB

Where does the power supply common connect to the ground pour?
by Speedskater
Thu Sep 17, 2015 8:00 am
Forum: Pro Audio Design
Topic: modified GFCI
Replies: 92
Views: 163047

Re: modified GFCI

After hunting about I did find the smaller Leviton GFCI's for old work. SmartlockPro® Slim Series GFCIs Install in Any Electrical Box When it comes to GFCI installation, size really does matter. That's why we've trimmed the profile of our industry-leading SmartlockPro GFCI receptacle to fit into an...
by Speedskater
Mon Aug 31, 2015 6:16 pm
Forum: Pro Audio Design
Topic: modified GFCI
Replies: 92
Views: 163047

Re: modified GFCI

There are dual GFCI receptacles available with a low form factor. Designed to fit in older outlet boxes.
by Speedskater
Sat Feb 28, 2015 7:57 am
Forum: The Peabody Lounge
Topic: antennas for over-the air DTV
Replies: 3
Views: 7349

Re: antennas for over-the air DTV

The people at AVS forum might be able to help.

http://www.avsforum.com/forum/25-hdtv-technical/
by Speedskater
Thu Feb 12, 2015 1:09 pm
Forum: Pro Audio Design
Topic: modified GFCI
Replies: 92
Views: 163047

Re: modified GFCI

Getting back to: My only question is can the cap coupled ground provide adequate ground impedance for shielding. So I looked in my Henry W. Ott book: "Electromagnetic Compatibility Engineering" http://www.hottconsultants.com/EMCE_book_files/emce_book.html He wrote about 100 pages on the su...
by Speedskater
Wed Feb 11, 2015 2:24 pm
Forum: Pro Audio Design
Topic: modified GFCI
Replies: 92
Views: 163047

Re: modified GFCI

We let that nasty word 'ground' sneak into the conversation. So does 'ground impedance' mean - impedance to: a] Safety Ground/Protective Earth (EGC) connection to power company Neutral? b] Connection to Mother Earth - Grounding Electrode Conductor (GEC)? c] Connection to component chassis? d] Connec...