- Paperback: 354 pages
- Publisher: Createspace; 1 edition (February 2010)
- Language: English
- ISBN-10: 1450544002
- ISBN-13: 978-1450544009
- Product Dimensions: 22.8 x 15.2 x 2.2 cm
- Shipping Weight: 558 g
- Amazon Bestsellers Rank: #708,911 in Books (See Top 100 in Books)
|
||||||||||||||||||||
|
||||||||||||||||||||
|
||||||||||||||||||||
Product Details |
Tag this product(What's this?)Think of a tag as a keyword or label you consider is strongly related to this product.
Tags will help all customers organize and find favorite items. |
Customer Reviews
|
There are no customer reviews yet on Amazon Canada
|
||||||||||||||||||||
|
Most Helpful Customer Reviews on Amazon.com (beta)
Amazon.com:
3.0 out of 5 stars (2 customer reviews)
1 of 1 people found the following review helpful:
4.0 out of 5 stars
Excellent covering of an obvious topic for improvements in amplifiers., Jan 13 2011
By B.G.Rasmussen - Published on Amazon.com
This review is from: Current-Driving of Loudspeakers (Paperback)
"Current-driving of loudspeakers" is simply a remarkable cookbook and recipy including: Science, worked calculations,
practical issues and completed projects, ready for use as they are, or for inspiration. Any technical person, including
DIY audio hobbyists like me, will be able to complete these amplifier projects, or make designs of their own.
With this book Mr. Merilainen has picked-up the long forgotten issue of driving loudspeaker voicecoils by a constant current
instead of constant voltage, which is the current (!) code of practice. This book prudently explains all the issues of
constant voltage drive versus constant current drive, with splendid covering of what scientific and technical pitfalls to
circumvent in the design and construction phase of the latter. Constant current drive can reduce/eliminate certain distortion
phenomenae generated in the voice coil/magnetic gap. These distortions can ,by far, be in excess of other distortions from
modern electronics, cabling or "non-linear copper" which seems to gather interest by many audio-enthusiasts.
Instead, constant current drive deserves due interest as the next logical step in the perpetual pursue of High Fidelity.
0 of 3 people found the following review helpful:
2.0 out of 5 stars
Interesting but highly flawed, Jan 15 2011
By Just Bob again - Published on Amazon.com
This review is from: Current-Driving of Loudspeakers (Paperback)
The concept, yes, interesting. It has many implications concerning amplifier impedance, crossover design, frequency response. The author is too concerned with proving that low-impedance amplifiers are a "fundamental fallacy". English is not his native language and the text is difficult to parse in many places. However, there are massive errors as well. "The pressure radiated .. is proportional to diaphragm acceleration, not displacement or velocity." Wrong. If I excite a speaker with a triangle waveform, I do not hear a series of impulses (which is the acceleration). He also says "the mass of the the driver has nothing to do with how accurately a driver is able to reproduce transients." So, a woofer with a 20 gram diaphragm can reproduce transients as well as an electrostatic speaker? News to me. He says some interesting things here and there but many of his core concepts are simply wrong. No wonder the AES would not accept an ad for his book. The establishment is not out to get him. He has a whole lot of equations but a poor grasp of physics.
Listmania!
Look for similar items by category
Look for similar items by subject
Feedback
Would you like to update product info or give feedback on images?
|
