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Forum: Dedicated Theater Design & Construction   04-18-2017, 09:19 AM
Replies: 85
Views: 1,393
Posted By Speedskater
A small typo: If there are TWO OR MORE...

A small typo:
If there are TWO OR MORE receptacles on a 15-amp branch circuit, they must be NO LESS THAN 15 amperes
Should be:NO MORE THAN 15 amperes

Actually it's ONE OR MORE receptacles
Forum: Dedicated Theater Design & Construction   04-18-2017, 08:38 AM
Replies: 85
Views: 1,393
Posted By Speedskater
you missed the fine print: residential...

you missed the fine print:

residential receptacle circuits

Many circuits have no receptacles. Some are hardwired to lighting systems or appliances.

See NEC 210.21 (B)
Forum: Audio Theory, Setup, and Chat   04-17-2017, 04:26 PM
Replies: 23
Views: 351
Posted By Speedskater
With long loudspeaker cables, it's not a question...

With long loudspeaker cables, it's not a question of audio power, even a 16 or 18AWG can handle with the current. It's a question of cable end-to-end resistance with respect to the loudspeaker's...
Forum: Dedicated Theater Design & Construction   04-17-2017, 04:21 PM
Replies: 85
Views: 1,393
Posted By Speedskater
In the US, commercial buildings have different...

In the US, commercial buildings have different rules than homes.
In a US home, a 20 Amp receptacle circuit must have:
a] one or more 20A receptacles
b] toe two or more 15A receptacles
Forum: HDTV Programming   04-12-2017, 12:17 PM
Replies: 131
Views: 1,909
Posted By Speedskater
TV viewing might increase if they improved the...

TV viewing might increase if they improved the ratio of green flag to yellow flag laps.
Forum: Audio Theory, Setup, and Chat   04-11-2017, 05:19 PM
Replies: 23
Views: 351
Posted By Speedskater
Well there is a big problem with long unbalanced...

Well there is a big problem with long unbalanced cable runs. In thise case long is well over 20 feet and it's worse if 2 AC circuits are involved. It's not about the audio signal it's self, it's...
Forum: Audio Theory, Setup, and Chat   04-11-2017, 05:11 PM
Replies: 23
Views: 351
Posted By Speedskater
With balanced cables it's not just the cables,...

With balanced cables it's not just the cables, it's a complete balanced interconnect system.

Balanced output stage >> balanced cable >> balanced input stage.
Forum: Speakers   04-11-2017, 09:08 AM
Replies: 12
Views: 190
Posted By Speedskater
In the real world there probably won't be any...

In the real world there probably won't be any difference between 16AWG and 14AWG. But now that you ask the question, get the 14 or you will keep wondering, [should I have gotten 14] ?
Forum: Audio Theory, Setup, and Chat   04-11-2017, 09:00 AM
Replies: 23
Views: 351
Posted By Speedskater
An XLR balanced interconnect system is often a...

An XLR balanced interconnect system is often a better choice than RCA unbalanced interconnects.
But it's seldom available. So for long RCA interconnects the best choice is the Blue Jeans Cable LC-1....
Forum: Headphones   04-10-2017, 05:17 PM
Replies: 4
Views: 78
Posted By Speedskater
Are the XLR connectors 3 pin ones? If so they a...

Are the XLR connectors 3 pin ones?
If so they a probably balanced line level outputs.
Balanced headphones would use 4 pin connectors with a volume control and a headphone output stage.
Forum: Speakers   04-06-2017, 12:19 PM
Replies: 29
Views: 479
Posted By Speedskater
Speaker cable conductor AWG is not so much about...

Speaker cable conductor AWG is not so much about amplifier. It's about the length of the cable and the loudspeaker impedance curve. We have to consider the cable's end-to-end resistance/impedance in...
Forum: 2-Channel Audio   04-05-2017, 04:58 PM
Replies: 85
Views: 2,342
Posted By Speedskater
My post is in response to another 'S6A' post...

My post is in response to another 'S6A' post today. It was a question about balanced cables.


Longer cables are more of a design challenge than shorter cables.


Don't know how SP/DIF cables...
Forum: Speakers   04-05-2017, 03:46 PM
Replies: 29
Views: 479
Posted By Speedskater
Canare makes very nice cable, so do Belden &...

Canare makes very nice cable, so do Belden & Mogami. Blue Jeans Cable sells many good cables. monoprice sells good low budget cables.
Stay away from AQ & Monster
Forum: 2-Channel Audio   04-05-2017, 03:41 PM
Replies: 85
Views: 2,342
Posted By Speedskater
Belden, Canare & Mogami are high-end cable...

Belden, Canare & Mogami are high-end cable manufactures. While audiophile boutique cables, not so much and many are very poor cables.
(in this case, high-end refers to quality not price)

From an...
Forum: Dedicated Theater Design & Construction   04-04-2017, 04:54 PM
Replies: 13
Views: 190
Posted By Speedskater
I can't image how big the system is that requires...

I can't image how big the system is that requires five 20A circuits.
In any case I would run a large feeder from the main panel to a sub-panel in or near the room.
The idea is to keep the length of...
Forum: HDTV Programming   04-03-2017, 04:36 PM
Replies: 44
Views: 1,417
Posted By Speedskater
I fast-forward thru the Fred Armisen segment. ...

I fast-forward thru the Fred Armisen segment.


Ever notice the every drummer plays the same set of house drums?
Forum: Audio Theory, Setup, and Chat   04-03-2017, 04:22 PM
Replies: 18
Views: 387
Posted By Speedskater
The length of the speaker cable has nothing to do...

The length of the speaker cable has nothing to do with DSP delays. Other than longer cables suggest that the speakers are farther away.
Forum: Area Home Theater Meets   04-03-2017, 04:12 PM
Replies: 15
Views: 189
Posted By Speedskater
While I seldom get to the AVS forum these days,...

While I seldom get to the AVS forum these days, I'm still in Lakewood.
Forum: Audio Theory, Setup, and Chat   03-14-2017, 12:40 PM
Replies: 4
Views: 100
Posted By Speedskater
In a 25V, 70V or 100V commercial sound system,...

In a 25V, 70V or 100V commercial sound system, each loudspeaker has a transformer mounted on it's frame. This transformer has several taps to adjust the loudness of this speaker in relation to the...
Forum: Audio Theory, Setup, and Chat   03-14-2017, 12:33 PM
Replies: 3
Views: 111
Posted By Speedskater
Does the light circuit have a dimmer? Is the...

Does the light circuit have a dimmer?
Is the speaker cable a twisted pair?
Forum: Dedicated Theater Design & Construction   11-24-2016, 08:36 AM
Replies: 10
Views: 255
Posted By Speedskater
Two quick thoughts: a] Even thought one major...

Two quick thoughts:
a] Even thought one major manufacture labels their receptacles as 'outlets', there is a real difference between an 'outlet' and a 'receptacle'.
2] I would that a home theater is...
Forum: Audio Theory, Setup, and Chat   11-22-2016, 03:12 PM
Replies: 25
Views: 470
Posted By Speedskater
What's really important is the end-to-end...

What's really important is the end-to-end resistance of the wire. Short small diameter cables are about the same as long large diameter cables.
Be aware that some cables sold in the big-box stores...
Forum: Audio Theory, Setup, and Chat   11-22-2016, 03:06 PM
Replies: 24
Views: 433
Posted By Speedskater
More likely the bigger diameter coax cables are...

More likely the bigger diameter coax cables are 50 Ohms. Radio & TV stations have them in up to 6 inch diameter.
Forum: HDTV Programming   10-12-2016, 03:10 PM
Replies: 40
Views: 592
Posted By Speedskater
I don't watch many games during the 162 games...

I don't watch many games during the 162 games pre-season. So I like the games on TBS, they have the pitch tracker always turned-on. So I can see the progression during an at-bat.
Forum: Tweaks and Do-It-Yourself   10-12-2016, 02:59 PM
Replies: 6
Views: 169
Posted By Speedskater
While short power cords are always better than...

While short power cords are always better than long power cords (up to a point), but DIY power connectors can be problematic and even dangerous.
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