rec.audio.* FAQ
Answers to common questions about audio equipment, selecting,
buying, set-up, tuning, use, repair, developments, and philosophy.
This rec.audio.* FAQ was compiled and written by Bob Neidorff with
numerous contributions by others.
1.0 Contents:
2.0 Organization:
3.0 Purpose:
4.0 Omissions:
5.0 Credits:
6.0 Errors and Corrections:
7.0 Disclaimer:
8.0 Copyright Notice:
9.0 High Fidelity Systems
9.1 What is a receiver?
9.2 What is a tuner?
9.3 How should I go about selecting a system?
9.4 How can I improve the sound of my stereo?
9.5 Do I want a combo system or separate components?
9.6 How can I get better FM radio reception?
9.7 How good are these compact FM antennas?
9.8 What makes the best FM radio antenna?
9.9 What about power line conditioners?
9.10 How can I reduce vibration sensitivity?
9.11.1 Any information on equipment made in other countries?
9.11 What equipment can I buy that is 100% made in the USA?
9.12 Should I buy "xxx"? Which is better: "yyy" or "zzz"?
9.13 What is Surround Sound? Pro Logic?
9.14 What do they mean when they say "It sounds warm?"
10.1 What should I listen for when evaluating a turntable or CD player?
10.2 Are some discs better than others?
10.3 Are CDs better than LPs?
10.4 What turntable should I buy?
10.5 What phono cartridge should I buy for my older turntable?
10.6 Will phono cartridges still be around ten years from now?
10.7 Will LPs still be around ten years from now?
10.8 What about CD green pens?
10.9 What about CD stabilizer rings?
10.10 What about CD spray treatments (ArmorAll et al)?
10.11 Are 1-bit CD players better than multi-bit players?
10.12 Are three lasers better than one in CD players?
10.13 Is the BMG 11-for-1 deal good?
10.14 What should I do if there is a problem dealing with BMG?
10.15 How do I get out of the BMG racket?
10.16 How do I get the most out of BMG?
10.17 What are the differences between multibit and Bitstream/MASH Analogue to Digital converters (16-bit vs 1-bit CD players)?
10.18 What is the best under-$200 CD player?
10.20 What is the best under-$500 CD player?
10.23 How can I clean a dirty CD?
10.24 Can you repair a damaged CD?
10.25 Can I add digital output to a non-digital-out CD player?
10.26 What can I get in the way of a CD test disc?
10.27 How do the letters ADD on my CD relate to sound quality?
10.28 How can I clean LPs?
10.29 How do you set the stylus pressure correctly?
10.30 How do you set the anti-skating on a tonearm?
10.31 How else do you adjust a tonearm/cartridge/stylus?
10.32 Do CDs deteriorate with time? What is their life span?
10.33 How much music can you possibly cram into a CD?
10.34 What are input and output levels and impedances for signal sources, preamps, amps, etc?
10.35 Why are turntable speeds 78 RPM, 45 RPM, etc?
10.36 Why is CD digital data written in 44.1 kHz samples?
10.37 What's the latest on DVD and DAD?
10.38 What's the latest on the MiniDisc(tm)?
10.39 How can I record an LP or tape onto a CD?
11.0 Amplifiers
11.1 What is Biamping? Biwiring?
11.2 Can amplifier X drive 2 ohm or 4 ohm speakers? How do I raise the impedance of a speaker from (say) 4 ohms to 8 ohms?
11.3 How do I drive more than two speakers with one stereo amplifier?
11.4 How big an amplifier do I need?
11.5 Do all amplifiers with the same specifications sound alike?
11.6 Is this amplifier too big for that set of speakers?
11.7 Where can I get a cheap low-power amplifier?
11.8 Is the stuff sold by Carver really awesome?
11.9 What is a preamplifier?
11.10 What is a passive preamplifier?
11.11 Do I need a preamp? Why?
11.12 Should I leave equipment on all of the time or turn it on and off?
11.13 Do tube amps sound better than transistor amps? FETs?
11.14 What about swapping op-amps?
11.15 Where can I buy electronic parts to make an amplifier?
11.16 Where can I buy audio amplifier kits?
11.17 Where can I read more about building amplifiers, preamps, etc.?
11.18 What is Amplifier Class A? What is Class B? What is Class AB? What is Class C? What is Class D?
11.19 Why do I hear noise when I turn the volume control? Is it bad?
11.20 What is amplifier "bridging" or "monoblocking"? How do I do it?
12.1 What should I listen to when evaluating speakers?
12.2 What should I listen for when evaluating speakers?
12.3 Why use a subwoofer? Will it help? One or two?
12.4 How do you connect a subwoofer to a stereo?
12.5 What do I need for surround sound?
12.6 I was just approached (accosted?) by a couple of kids driving a van that said they had some GREAT speakers to sell. They are overstocks, used by major recording studios and DJs or even hot, and they normally sell for $1000/pr, but they'll let me have them for just $399. Am I getting ripped off?
12.7 What speakers should I consider in the $XXX/pair price range?
12.8 Can you build better speakers than you can buy?
12.9 Where can I read more about speaker building?
12.10 Where can I buy speaker drivers?
12.11 Where can I buy loudspeaker kits?
12.12 How can I improve the sound of my speakers?
12.13 How can I replace/re-cone my old speakers?
12.14 What computer programs can I use to design speakers?
12.15 Can I magnetically shield my speakers for use near a TV?
12.16 What are all of these abbreviations people use for speakers?
12.17 What are fluid-filled (fluid-cooled, ferro-fluid) tweeters?
12.18 Should I use spikes under my speakers? Pennies under the spikes?
12.19 How do you couple speakers to speaker stands?
12.20 What is a Sealed, Ported, Bass Reflex, Acoustic Suspension, Bandpass, and Coupled Cavity Speaker? Which is better?
12.21 What is the best material to make speaker boxes out of? Why?
12.22 What size fuse or circuit breaker should I put in my speaker to protect it from damage?
12.23 Why are speakers labeled + and - or Red and Black?
12.24 What is the best "stuff" to fill a speaker cabinet with?
13.1 How should I place speakers in my room? What size room is best?
13.2 How do I wire a house for sound?
13.3 Where can I read more about listening room construction and tuning?
13.4 What is white noise? What is pink noise?
14.0 Recording
14.1 What is DAT? What is its status today?
14.2 What is DCC? What is its status today?
14.3 What about writable compact discs? What is the status today?
14.4 What are Dolby B, C, and S, HX Pro, and DBX? Are they compatible?
14.6 What is PASC? Can I hear the effects?
14.7 What is SCMS? Can I hear the effects?
14.8 How can I bypass SCMS?
14.9 What's this about a tax on DAT?
14.10 Is it legal to copy an LP, CD, or pre-recorded tape?
14.11 How do I clean and demagnetize tape heads?
14.12 How do I adjust a tape recorder for best results?
14.13 Where can I get new pinch rollers or drive belts?
14.14 What is a good rubber (pinch) roller cleaner?
14.15 How can I program a recorder to tape a radio broadcast?
14.16 Will CrO2 or Metal tapes damage a deck made for normal tape?
14.17 Why do my old tapes squeak in my car cassette deck?
14.18 Is VHS Hi-Fi sound perfect? Is Beta Hi-Fi sound perfect?
14.19 How do HiFi VCRs compare to cassette recorders? DAT recorders?
14.20 What is the difference between VHS HiFi and Beta HiFi?
14.21 Is there any good reason to buy a HiFi VCR for common TV shows?
14.22 What is the best cassette tape?
14.23 What is the best Reel-to-Reel tape?
14.24 What is Type I, Type II, Type III, and Type IV cassette tape?
14.25 Why do I have hum when I connect cable to my VCR (or TV), which is connected to my audio system?
15.0 Wire
15.1 Do speaker cables matter?
15.2 What speaker cables are available and how good are they?
15.3 What can I use for budget speaker cables?
15.4 What can I use for budget speaker connectors?
15.5 What about interconnects, such as the cable between tuner and amp?
15.6 What about Phono Interconnects:
15.7 Is there really a difference in digital interconnects?
15.8 Can I make very good interconnects myself?
15.9 Is there a standard for wiring balanced XLR-3 cables?
16.1 Should I use an up-scale retail store?
16.2 Should I use a discount store?
16.3 Is it right to negotiate price?
16.4 How can I negotiate price effectively?
16.5 It sounded great in the store. Is it great?
16.6 Do sales people try to trick the customer?
16.7 How can sales people trick the customer?
16.8 What should I ask the sales person?
16.9 How do I impress the sales person?
16.10 How do I get the best service from a sales person?
16.11 What is "street price" or "list price"?
17.0 Mail Order
17.1 Who sells brand XXX equipment mail-order?
17.2 Is the stuff sold by DAK really awesome? Damark?
17.3 Is the stuff sold by Cambridge Sound Works really awesome? What about the other brands of tiny satelites and subwoofers?
17.4 What should I watch out for when buying mail order?
17.5 What is gray market?
17.6 Are there any good mail-order sources for recordings?
18.1 What are the audio newsgroups? Which group should I post to?
18.2 What network mailing lists are out there which aren't on usenet?
18.3 Should I post a question about "XXXXXXX"?
18.4 How can I suggest a change to the FAQ?
18.5 Where is the FAQ for rec.audio. archived?
18.6 What does FAQ stand for?
18.7 Why did I get a bitter reply when I posted a simple opinion?
18.8 Can I post a "FOR SALE" notice on rec.audio?
18.9 Can I cross-post? Should I cross-post?
18.10 Are there any sites containing audio files available for ftp?
18.11 Are there any audio-specific World-Wide Web sites?
19.1 Which magazine should I read?
19.2 Which reviews are better?
19.3 Is Consumer Reports right?
20.1 What do I need to know about warranties?
20.2 What is blind testing? Non-blind? Double-blind?
20.3 Where can I get a service manual or parts for brand XXX?
20.5 How can I take 115V gear over to a 230V country or vice versa?
20.7 How do I find out how much an XXX is worth?
20.8 Do people really hear those differences?
20.9 Why do people disagree on what is the best sound?
20.10 How do I contact the manufacturer of XXXXX? How do I get repair service on XXXXX? How do I get replacement parts?