Comments will be delayed!

I will be out of town until the end of the week, so comments will not show up until Sunday August 3rd at the earliest! My thanks to everyone who has posted, I hope you understand the delay.

There are a few simple rules that I use to approve comments:

1. Certain inappropriate words and drug names will automatically reject a comment. I get a lot of drug related spam. If you don’t say something specific about the topic, I will think your comment is spam!

2. It is okay to disagree with me, but don’t try to start a fight, and never say anything that may insult my readers! That last one will put you on the spam list. In my view, there are no stupid questions, just dumb answers. I want everyone to get the help they need. If I don’t know the answer, I will try to refer you to better source.

If you want to delete a comment you made, let me know and I will do so.

I do need to post some good links and sources for getting good info or products, I will try to do that soon. But I want you to know that I also want to hear your input, and especially your experiences with any of the products I have mentioned. I may want to use your comments and your name, if it’s okay with you!

I have been asked if I would take reviews from others, but since opinions and experiences vary greatly, I don’t want to go that direction yet. I would rather recommend a few things that I know give superior results in the cheap range. There is plenty out there that is recommended but not really that great.

I am currently looking at improving the K-502 tube amp kit (sells for about 200 USD) and plan to post that within a month. Good little amp, even though it has some hum, but a lot of guys use this as a starting point.

 

Best Cheap Audiophile Headphone Deal

New Info added 25July2014

Cheap audiophile Mike Parente recently asked about headphones and, to be honest, I did not want to go there! But after thinking about it, and realizing that I listen a lot on headphones lately, I have to make a recommendation. Especially since my favorite for personal use is an earbud type that only costs 10 USD and is available not from audiophile shops, but many retail stores. You are skeptical? You have a right to be, but this is no joke.

IMG_0220The Panasonic HJE120 is very cheap, pretty comfortable, and best of all, sounds really good. There are other options for more money, but they often have issues with comfort or sound. I am an old Sennheiser fan, but I like these Panasonics better than my HD280 Pro studio headphones (that cost 10x more). I am not kidding. The HD280 is good with great sound isolation, but like many full size headphones, it is soft in the highs, even when compared to a number of earbuds.

What really struck me about the Panasonic earbuds is their ability to sound natural. Good audiophile systems have a way of making it sound like the voice or instrument is real and in your room. Hi-Fi can sound good, but it does not present an image that can fool your brain.  These earbuds are audiophile quality because they can deliver some of that natural sound. Are there better ones out there? Yes, but for much more money. Continue reading

Fostex Kanspea Speaker Kit Review

Or “Look Ma, no tweeter!”

IMG_0179Can a speaker that has just one 4 inch “full-range” driver really provide a full range of sound? At the end of my last post, I suggested trying these speakers as a way to experience what midrange can sound like when there is no crossover involved. I realized that I needed to try them out for myself, so I bought these at Madisound without the optional amplifier for about 140 USD. I chose the classic FE103 driver that has been popular for a very long time.

I asked my friend David Still to check these out since he uses a larger full-range driver with a Nelson Pass “Zen” amp. He is also a musician and uses the Pioneer BS22 speakers in his home studio. He also has a Crown DC300A amp and Marantz 2230 that he used. I tried the Fostex speakers with my Tripath “Class T” amp, and with a tube amp. The tube amp yielded significantly different and interesting results that is mentioned later. Continue reading

How to hear!

What? Just WHAT do you mean by that?

man playing guitarIf you have been a musician or involved in sound engineering, you know about how a trained ear can be invaluable. It is also a good thing for anyone who wants good quality music playback, especially given the current audio product market. I would like to offer a few suggestions.

This is a tricky subject. There are two camps in the audio universe: the “Objectivist” who goes by the numbers and only believes in science, and the “Subjectivist” that is commonly called the Audiophile community. Both sides can be a bit extreme in their views and, as often happens with anything in the real world, the truth can often be found somewhere in the middle.

Objectivists will try to convince you that all amplifiers will sound the same and are basically perfect, and that double-blind tests by people smarter than you have proved it. Of course, if you have tried different amps and listened, you know this is not true. There is even a website out there that tries to “Debunk the Bi-wiring Myth” by showing the math that actually proves that it does make a difference, but then tell you that you could never hear the difference. Seriously, they actually say that! Apparently, they think we are stupid enough to just take their word for it because they are “experts”. Well, even “smart” people act stupid sometimes….

So, my first suggestion is not to take anyone or any theory too seriously, including me. Electronics and acoustics put together makes for a very complex subject that often frustrates any effort at simple conclusions. Things that make a difference in one case don’t always work in another case. My own experiments with Bi-wiring indicate that it can make a significant difference with some speakers, but not so much with others. There is no replacement for experimentation and experience, but don’t allow previous experiences to make conclusions that may not be true under different circumstances. Always be open to try things and learn! Continue reading

It’s a Digital World!

DigaudioMore info added 25May2014

Okay, I am an old guy. When I went to school, computers were still new, and I studied some Boolean algebra for basic digital circuits, and some Fortran…. And I did not care for it. So I tried my best to stay away from it, and became an RF/Analog guy. I loved it! Who knew that computers and digital would come to dominate the electronics world, I sure did not see that coming!

Which brings me to another point: while I have spent some time in this field, I do not consider myself an expert on the audio equipment that’s out there these days (it is hard for one guy to keep up). I have a little experience with Class D amps, more with Class A and A/B, and some speaker design experience, but nowhere near guys like Andrew Jones. I can design a pretty good tube amp now, and speakers that are good enough to impress most people. But I am more known around the net for a practical paper that I wrote on compact antennas for low power applications.

I started this website over a year ago to help steer people to some of the better products that are available at very low prices. I mean dirt cheap, like stuff the audiophile press won’t look at. I included some DIY (do-it-yourself) info since doing mods seemed to be popular and can help save money. Most of the comments I get here are DIY related. So I’m thinking about doing more projects here, or suggesting interesting kits. Continue reading

About Amplifiers

Additional comment added 1Jan2014!

There are not many low-cost receivers or integrated amplifiers that I feel good about recommending. Virtually all of them use a “Class AB” integrated circuit (or “chip”) that is actually a very high gain Class B circuit that trades away most of its gain (in the form of negative feedback) to try to correct the massive distortion of this type of circuit. This is the popular modern method of design and, as I will show below, it has problems.

I can recommend the Topping amplifiers that use the Tripath Class D circuit, which they call “Class T”. There are a number of models, and if you need at least 2 inputs, there are versions that have that for less than $150, like the Topping TP22 shown in the picture.

Do amplifiers really make a difference?

When I started to get back into audio over 10 years ago, I started with a Yamaha “Natural Sound” receiver. I did not like the Yamaha speakers, so I built my own using audiophile quality components. It sounded nice. After some time, I began to notice some things. While it sounded “nice”, it was too nice. Compared to live acoustic music, it sounded dull and not very dynamic. And some things, like bass drums, did not sound right at all. I have been to live acoustical performances and this was not doing it. Continue reading

More Power Scotty!

Do you really need hundreds of Watts?

Most non-audiophiles that I talk to seem to believe that you need a lot of power to drive speakers. They are truly stunned that I am happy with 10 or even 5 Watts! Fortunately, power is cheap these days, and with transistor amplifiers, better to have too much than not enough. But most people don’t know how much power they actually need, and corporate advertising has convinced them that they need hundreds of Watts.

So how much do you need? And why are some people happy with low power levels?

The power you need depends on the efficiency (or sensitivity) of your speakers. It also depends on how deaf you are, or how loud you want to go. So let’s make this simple by assuming that most people with good hearing start to get uncomfortable with a loudness of about 100 dB. In my limited experience, this seems about right. The chart below shows how much power you need to hit this level with a given speaker efficiency.

Speaker Efficiency

Power in Watts

80

100

83

50

87

20

Average home speaker

90

10

93

5

(my speakers)

97

2

Pro live sound

100

1

Klipsch Heritage line

Speaker efficiency is the output level at one meter away with 1 Watt input (sometimes 2 Watts with 4 Ohm speakers because they test with the same Voltage as for 8 Ohms). Continue reading

A reason NOT to be an audiophile!

I get close to my speakers!

On my last post, I mentioned the danger of becoming too critical about music reproduction and losing the enjoyment of the music itself. I was talking to a few friends recently about becoming obsessive about what we do, to the point of becoming frustrated, then giving up and selling everything off! This happens all the time, not just in audio, but in any avocation or hobby.

I have reached the point with my living room system that I will not even listen to some recordings that I like on this system. The distortion on these recordings may not be noticed on typical consumer equipment because the inherent intermod distortion tends to cover up low level details and distortion. But the tube amp and ribbon speakers reveal these things in a sometimes brutal way! Distortion that others don’t hear (even in the studio) can be obnoxious in an audiophile system.

This brings up an interesting question: how much do you really want to hear out of a sound system? The answer to this question depends in part on the answer to this: what kind of music and record quality do you listen to? If you like the popular music with all the processing and distortion added, buying expensive audiophile equipment is like buying a Ferrari to use only for driving across the street to the store. It may look impressive, but you will never know what the car is capable of. That’s a waste of money to me. Continue reading

What about cables?

(Revised comments on 7Jun2014)

Truth is, cables can make a difference, but not that much most of the time. Under some conditions, the difference can be obvious, but in many conditions, the difference can be very hard to tell. Salesmen love to tell you that it makes a big difference, and most people just believe them, without checking things out for themselves. Experience is a good teacher here, but even experiences can be colored by personal bias and high expectations of all that money you just spent on new cables.

There are theoretical reasons for using better cables, but being able to actually hear the difference is a another issue. I don’t want to go into theory and bore you here, but I will try to explain why there may or may not be an audible difference, and what practical experience has shown me.

First, Speaker Cables:

Since speakers have a very low impedance of 4 or 8 Ohms, resistive loss of cables and connectors is the issue. Capacitive and Inductive effects are usually small unless the cable is very long.

For a small amplifier of 25 Watts, the peak current into a 4 Ohm load would be less than 4 Amps. An 18 Gauge wire is plenty big enough to handle this amount of current. At 100 Watts, or 7.5 Amps of peak current, I would recommend going up to 16 Gauge wire. You can always go larger in diameter (smaller number), but not smaller. Is there a benefit to going larger? Yes, larger wire does have less resistance, but only by a few thousandths of an Ohm per foot of length. Not that much of a difference, is it? I have tried Monster and Kimber cables, and there were slight differences. But I just ended up going back to 18 Gauge wire because it was cheap, easy to use, and sounded good. It helps that I keep speaker cables short. If I had to use long cables (6 Ft or 2 meters or more), I would probably use a larger size to keep the total resistance down. Continue reading

Best $100 speakers

Rarely will you find cheap speakers talked about in the audiophile community, but there’s been a lot of press lately about some Pioneer bookshelf speakers. The big surprise? They typically sell for 129 USD a pair! Of course, I just had to check them out.

I went to my local Best Buy store and sampled their speakers. I found the Pioneers on a shelf next to some $99 Polk speakers, as well as some more expensive Polk and Klipsch bookshelf size speakers. A nice young man offered to play them with some music that I might prefer, and we tried them all. By the way, Best Buy is a good place to check out better quality speakers like B&W; I had a very impressive demo of some small B&W speakers that sounded HUGE! They cost $480, but they’re worth it.

The Polk and the Klipsch speakers clearly had a lot more highs than midrange, and little bass. In comparison, the Pioneer speakers sounded weak and muffled in the store setup. But when we turned them up, the midrange sounded more balanced and bass was incredible for such small speakers. I still wasn’t sure I wanted to try buying the Pioneer, but a sale price of $99 made me take them home. Continue reading