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Search: Posts Made By: R Swerdlow
Forum: 2-Channel Audio   07-24-2015, 10:47 AM
Replies: 51
Views: 889
Posted By R Swerdlow
If the entire audio signal chain has full...

If the entire audio signal chain has full differential circuits and is connected with balanced cables on all electronic devices in the chain, it can provide as much as an additional 3 dB in dynamic...
Forum: Speakers   07-08-2015, 04:07 PM
Replies: 9
Views: 173
Posted By R Swerdlow
Equalization through receiver-based calibration...

Equalization through receiver-based calibration software or room treatments will not tame this harsh sound. It's inherent to the speakers.
I've never understood that either. The much more...
Forum: Speakers   07-08-2015, 07:28 AM
Replies: 9
Views: 173
Posted By R Swerdlow
What you described is a classic problem with many...

What you described is a classic problem with many B&W speakers. They use a Kevlar mid woofer which is infamous for it's high frequency resonance or break-up noise, and they use a crossover frequency...
Forum: Speakers   06-10-2015, 08:03 AM
Replies: 17
Views: 292
Posted By R Swerdlow
I'm not directly familiar with those Energy...

I'm not directly familiar with those Energy speakers, but your description suggests a reason why they sound too bassy. Putting them inside a cabinet, even if the back is open, can overemphasize the...
Forum: Audio Theory, Setup, and Chat   06-02-2015, 06:21 AM
Replies: 44
Views: 865
Posted By R Swerdlow
Yes, every speaker needs an amp, but not...

Yes, every speaker needs an amp, but not necessarily a separate amp.

A separate preamp/processor plus a mufti-channel amp for all your speakers will be expensive. A less costly alternative is to...
Forum: Speakers   05-30-2015, 11:27 AM
Replies: 9
Views: 184
Posted By R Swerdlow
Attach the speaker to the wall with a french...

Attach the speaker to the wall with a french cleat...
Forum: Speakers   05-10-2015, 08:41 AM
Replies: 9,532
Views: 939,042
Posted By R Swerdlow
The short answer is no other tower speaker in the...

The short answer is no other tower speaker in the $2000/pair price range came close to SongTowers. This was true when I bought them, and remains true today, although many more good competitors now...
Forum: Speakers   04-13-2015, 06:53 AM
Replies: 9,532
Views: 939,042
Posted By R Swerdlow
The LCY tweeter is a Chinese made ribbon that is...

The LCY tweeter is a Chinese made ribbon that is very good. It had been used in a number of Salk speakers.

When the SoundScape speakers were first developed, it used the excellent and somewhat...
Forum: Speakers   04-07-2015, 10:52 AM
Replies: 9,532
Views: 939,042
Posted By R Swerdlow
STs are not bi-polar speakers like the DefTechs,...

STs are not bi-polar speakers like the DefTechs, so there will be a difference in their "presentation". But it's been a very long time since I heard any DefTech speaker, even briefly in a store, so...
Forum: Speakers   04-07-2015, 10:07 AM
Replies: 9,532
Views: 939,042
Posted By R Swerdlow
Yes, both are amazing. I've owned my dome...

Yes, both are amazing. I've owned my dome tweetered SongTowers since 2007, and I continue to be happy with them and amazed by them. When I bought mine, the ribbon tweeter version did not exist, so...
Forum: 2-Channel Audio   03-08-2015, 09:22 AM
Replies: 13
Views: 346
Posted By R Swerdlow
It was an older model, a large 3-way, near or at...

It was an older model, a large 3-way, near or at the top of the line, but I don't remember the model. B&W frequently changes it's line up of speakers, and I don't keep up with that.

Although the...
Forum: 2-Channel Audio   03-01-2015, 09:07 AM
Replies: 13
Views: 346
Posted By R Swerdlow
I don't think it matters whether its a bookshelf...

I don't think it matters whether its a bookshelf or a floor standing speaker. As long as one of those Kevlar 5" or 6" drivers are used while crossed over to the tweeter at 4,000 Hz, it can be a...
Forum: Speakers   02-27-2015, 06:31 AM
Replies: 3
Views: 112
Posted By R Swerdlow
Those are 3-way speakers. Depending on the...

Those are 3-way speakers. Depending on the crossover design, it is not uncommon for drivers to be wired in opposite polarity.

I found this diagram of the crossover. It's too small to clearly see...
Forum: 2-Channel Audio   02-26-2015, 08:07 AM
Replies: 13
Views: 346
Posted By R Swerdlow
To echo what others have already said, your CM7s...

To echo what others have already said, your CM7s are weak on bass. Get a sub woofer.

These speakers are said by B&W to have 8 ohm impedance, but they drop to as low as 3 ohms in the range of 100...
Forum: Audio Theory, Setup, and Chat   02-25-2015, 12:38 PM
Replies: 285
Views: 5,726
Posted By R Swerdlow
Here are comments from a former FTC employee who...

Here are comments from a former FTC employee who was directly involved in the effort to create a more modern standard for power ratings of multi-channel AV receivers. I thought they also belonged on...
Forum: Speakers   02-25-2015, 12:09 PM
Replies: 20
Views: 581
Posted By R Swerdlow
Go for the Affordable Accuracy set. At $500...

Go for the Affordable Accuracy set. At $500 delivered for one center and 4 monitors, you won't beat that. I've heard those monitors, and they're quite good.

I've also heard those NHTs. They're...
Forum: Speakers   02-23-2015, 07:27 AM
Replies: 38
Views: 673
Posted By R Swerdlow
Sony didn't bother to print the power rating as...

Sony didn't bother to print the power rating as the FTC regulations specify. As a result, you cannot directly compare its power to the Onkyo.

I would assume Sony did the measurement and didn't...
Forum: Audio Theory, Setup, and Chat   02-20-2015, 08:05 AM
Replies: 285
Views: 5,726
Posted By R Swerdlow
A friend and neighbor worked for the FTC (not...

A friend and neighbor worked for the FTC (not FCC), and he worked on that ruling about amplifier ratings.

I asked him why the FTC didn't go after the bogus claims of the audio cable makers. He...
Forum: Audio Theory, Setup, and Chat   02-20-2015, 07:58 AM
Replies: 285
Views: 5,726
Posted By R Swerdlow
In addition to misrepresenting UL1711, the OP...

In addition to misrepresenting UL1711, the OP also misrepresented the FTC's rule on Power Output Claims for Amplifiers Utilized in Home Entertainment Products (16 CFR Part 432). What he said was...
Forum: Speakers   02-20-2015, 07:01 AM
Replies: 38
Views: 673
Posted By R Swerdlow
If you want to compare this receiver to others,...

If you want to compare this receiver to others, use this power rating:

65w (20-20kHz, 0.7%, 8ohms, 2ch driven)

The Federal Trade Commission (FTC) requires that all receivers and amps sold in...
Forum: Speakers   02-17-2015, 10:47 AM
Replies: 5,046
Views: 311,577
Posted By R Swerdlow
On Monday, I heard the single prototype of this...

On Monday, I heard the single prototype of this speaker. It sounded great even though I couldn't hear it in stereo. The BMR driver does very well as a mid range. It cannot produce the higher...
Forum: Speakers   02-17-2015, 10:13 AM
Replies: 9,532
Views: 939,042
Posted By R Swerdlow
Don't close off the rear port. You won't damage...

Don't close off the rear port. You won't damage the speakers, but you will loose out on their good low frequency performance.

Is that 18" between the rear of your speakers and the wall, or 18"...
Forum: Audio Theory, Setup, and Chat   01-29-2015, 12:25 PM
Replies: 28
Views: 438
Posted By R Swerdlow
The OP says he is located in NE Arkansas, and is...

The OP says he is located in NE Arkansas, and is looking to receive stations in Jonesboro (15 miles away) and Memphis (60 miles away). A quick look at a map shows this is the Mississipi River...
Forum: Audio Theory, Setup, and Chat   01-29-2015, 08:28 AM
Replies: 28
Views: 438
Posted By R Swerdlow
The metal roof is almost certainly the problem. ...

The metal roof is almost certainly the problem. It shields the antenna from the weak signals. The same can happen with attic insulation that has an aluminum foil coating.

Mount the antenna above...
Forum: Speakers   01-21-2015, 10:54 AM
Replies: 10
Views: 278
Posted By R Swerdlow
I haven't heard the Yamaha NS-8390...

I haven't heard the Yamaha NS-8390 (http://asia.yamaha.com/en/products/audio-visual/speaker-systems/home-speaker-systems/ns-8390_black__r/?mode=model)'s, so I can offer general advice.

Most center...
Showing results 1 to 25 of 387

 
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