Sunday, July 31, 2011

Audio Logic 34 MXL DAC


Power Requirements...........................105 130 VAC (210 240 VAC)
Input Protocol.............SPDIF, AES/EBU, (Optical,I2S, and 13W3 available)
Data Bus................................... ........24 Bit
DACs.................................................24 Bit
Sample Rate.......16 kHz to 96 kHz (192 kHz in double speed mode)
OverSampling......................................64 to 256 Fs
Frequency Response.............................4 Hz to 22.5 kHz +0, .25 dB
Dynamic Range...................................104 dB
Signal to Noise Ratio...........................104 dB 4 Hz to 22.1 kHz
Digital Silence....................................-102dB unweighted
Distortion (THD + IM)........................ < 0.02% full scale, full bandwidth
Output impedance...............................225 ohms
Output level .......................................+12 dbm

The Model 34 MXL Vacuum Tube Digital Processor has been designed and tested presenting the superiority in sound achievable in digital and analog devices. Many years of research by one of the industry's most notable designers has resulted in a product that is higher ranking to higher priced equivalents.  

Assembled, with every single part matched by hand and approved by a single team of engineers and technicians, it has conformed to our highest standard, passing every evaluation applied to that. The Model 34 MXL will continue to achieve peak performance for many years to come.

Input Preamplifiers

There are 3 separate preamplifiers individually engineered to receive a specific signaling sent by the Digital Sources (CD Transport, DAT, DSR, etc.,). Each exposes a calibrated input impedance for both SPDIF and AES EBU transmission standards via appropriate connectors. The optional optical Amplifiers are loaded and calibrated internally for TTL interface characteristics. Input Circuitry is designed to "latch up" on any unused inputs, preventing random input noise which could feed back to the pow.

STA 5150 Pre Amp

STA 5150



Monday, July 25, 2011

Estimating Household Appliance Energy Use

If you 're trying to adjudicate whether to invest in a more energy-efficient appliance or you'd like to establish your electricity loads, you may want to estimate appliance energy consumption. So, you can use the formula below before you buy appliances. 
Estimating Energy Consumption Formula

This formula can be used to estimate an appliance's energy use:
(Wattage × Hours Used Per Day ÷ 1000 = Daily Kilowatt-hour (kWh) consumption
(1 kilowatt (kW) = 1,000 Watts)
Multiply this by the number of days you use the appliance during the year for the annual consumption. You can then calculate the annual cost to run an appliance by breeding the kWh each year by your local utility's rate per kWh spent.

Note : To estimate the number of hours that a refrigerator actually operates at its maximum wattage, divide the total time the refrigerator is plugged in by three. Refrigerators, although turned "on" all the time, actually cycle on and off pro re nata to maintain interior temperaturs.
Portable fan:
(200 Watts × 4 hours/day × 120 days/year)  ÷  1000
= 96 kWh × 8.5 cents/kWh
= $8.16/year
PC and Monitor:
(120 + 150 Watts × 4 hours/day × 365 days/year)  ÷  1000
= 394 kWh × 8.5 cents/kWh
= $33.51/year

Electrical Power (Wattage)
You can usually find the electrical power of most appliances stomped on the bottom or back of the appliance, or on its nameplate. The electrical power listed is the maximum power drawn by the appliance. Since many appliances have a range of settings (for instance, the volume on a radio), the actual amount of power consumed depends on the setting used at any in one case.

f the electrical power is not listed on the appliance, you can still estimate it by finding the current draw (in amperes) and multiplying that by the voltage used by the appliance. Most appliances in the United States use 120 volts. Larger appliances, such as clothes drier and electric cooktops, use 240 volts. The amperes might be stamped on the unit in place of the wattage. If not, find a clamp-on ammeteran electrician's tool that clinches around one of the two wires on the applianceto measure the current flowing through it. You can obtain this type of ammeter in stores that sell electrical and electronic equipment. Take a reading while the device is running; this is the actual amount of current being used at that instant.

When quantifying the current drawn by a motor, note that the meter will show about threefold more current in the first second that the motor starts than when it is running smoothly.

A lot of appliances continue to draw a small amount of power when they are switched "off." These "phantom loads" come in most appliances that use electricity, such as Videocassettes recorder, televisions, stereos, computers, and kitchen appliance. Most phantom loads will increase the appliance's energy consumption a couple of watt hours. These loads can be avoided by unplugging the appliance or using a power strip and using the switch on the power strip to cut all power to the appliance. 

Distinctive Wattages of Various Appliances

Here are some examples of the range of nameplate electricals power for various home appliance :

  • Aquarium = 50–1210 Watts
  • Clock radio = 10
  • Coffee maker = 900–1200
  • Clothes washer = 350–500
  • Clothes dryer = 1800–5000
  • Dishwasher = 1200–2400 (using the drying feature greatly increases energy consumption)
  • Dehumidifier = 785
  • Electric blanket- Single/Double = 60 / 100
  • Fans
    • Ceiling = 65–175
    • Window = 55–250
    • Furnace = 750
    • Whole house = 240–750
  • Hair dryer = 1200–1875
  • Heater (portable) = 750–1500
  • Clothes iron = 1000–1800
  • Microwave oven = 750–1100
  • Personal computer
    • CPU - awake / asleep = 120 / 30 or less
    • Monitor - awake / asleep = 150 / 30 or less
    • Laptop = 50
  • Radio (stereo) = 70–400
  • Refrigerator (frost-free, 16 cubic feet) = 725
  • Televisions (color)
    • 19" = 65–110
    • 27" = 113
    • 36" = 133
    • 53"-61" Projection = 170
    • Flat screen = 120
  • Toaster = 800–1400
  • Toaster oven = 1225
  • VCR/DVD = 17–21 / 20–25
  • Vacuum cleaner = 1000–1440
  • Water heater (40 gallon) = 4500–5500
  • Water pump (deep well) = 250–1100
  • Water bed (with heater, no cover) = 120–380

Home Theater Sound With JBL SYNTHESIS

For more 60 years, HARMAN brands have set the benchmark for premium entertainment on tour, on the stage and in the home. We delight some 25 million drivers in the car, support the worlds top performing artists, and indulge the passion of home audiophiles from every generation.

Now, home theatre enthusiasts can take their listening experience to a whole new level with our JBL SYNTHESIS sound system. Designed to envelope every audience member in sonic purity, these systems deliver the absolute peak of sound reproduction. Whether youre enjoying a first-run movie or a premier sporting event, we can offer you a front-row seat that truly puts you inside the action and get delightsome hifi sound.
JBL SYNTHESIS systems are the suitable complement for todays high-definition content and gained large-screen displays. Our surround processors, digital equalizers and premium cabling deliver the faithful reproduction that you expect from todays advanced media. Add to this a range of amplifiers rated at up to 800 watts and legendary JBL speakers that blend high performance and stunning style. The result : Every refinement of the listening experience comes through with the crystal clarity and room-shaking excitement that you expect from HARMAN.

For the ultimate illustration of audio perfection, consider the latest Project Everest system. Three Project Everest DD66000 speakers sit in front of you, eight SK2-1000 surround speakers and four 18-inch S1S-EX subwoofers round out the room, powered by no fewer than eleven S820 amplifiers. These come together to make the most realistic and inspiring system JBL Synthesis has ever projected. 

It is little wonder that HARMAN is the only company to earn two prestigious GRAMMY Technical Awards for our decades of contribution to the science of audio. Our qualified channel partners can help you pick an award winning system that brings this bequest into your home. But dont just take our word for it. Hearing is trusting.

Vacuum Tube Phono Pre Amplifier

This is a "stand alone" effectuation of the preamplifier pattern used in my "RA-100" mixed amplifier. It employs a novel figure approaching, in which New op-amp figure techniques are compounded with classical vacuum-tube noesis to produce a electrical circuit that interprets a important improvement over most classical audiophile - degree tubing excogitations. As detailed here, it is configured as a RIAA phono preamplifier for magnetic or ceramic cartridges.

How does it sound? In a word, great. Download listen to an actual recording made from a test record at our Sound clips page. It will produce a very tasty sound
This project is recommended for intermediate electronics experimenters. A basic electronics knowledge is assumed, and at least some experience with tube projects is highly recommended before building this project. The information provided here is believed to be correct, but the author and Dogstar Music assume no liability for damages incurred through use or misuse of the information provide herein.
With the disclaimer out of the way, I can only add that if you 're looking to build a precise, clean, and reliable phono preamp, you 've come to the right place. The project can either be built using a point-to-point approach as shown in the illustrations on this site, or on a printed-circuit board for a cleaner look.

  • Magnetic (high-gain RIAA) or Ceramic (flat, gain=5) inputs
  • Precision RIAA implementation via negative feedback
  • High linearity, low distortion
  • Simple, self-contained power supply from common parts
  • Uses readily-available vacuum tubes and other components
  • Very low power consumption

Home Movie Theater For Your Child's

There was a time when it was popular and affordable to take your son and all his friends to a group activity such as bowling, roller skating, or movies for her birthday party. As children grow, these activities are fun and more "mature" alternative to a birthday party at home that are used in the years they were younger, where the family gifts, birthday cake, food from best chef and pin the tail on the donkey, enough for them. Now they want a place where friends can mix and entertaining, with more than a few games.

Unfortunately, with a group of kids to the movies or bowling can be expensive. For example, in bowling you have to pay to play, to rent shoes, and for a meal and refreshments. In the cinema, tickets and popcorn and refreshments for all, you have nothing to buy his son a gift.

A middle ground is a fun film festival at home, where children can watch a movie on satellite TV. This will save much money, and there are some things you can do to make sure that everyone will have a good time.

1. Send invitations with a movie theme for all excited. You can find invitations in your local store or even online fixed. Have your child help you fill them with the details of the celebration of his birthday.

2. Have your child pick out a movie before your guests arrive. With satellite TV, which has a variety of movie channels to choose from, as well as video on demand. If it's a sports movie, action films or comedy, make sure it is appropriate for the age group.

3. Stock up on accessories and everything that will make your guests feel like they're in a movie theater.

a. Create movie tickets can be delivered to each customer as they arrive. You can be creative and write your child's name, date, how old they are turning, and the film will be shown.
b. Rent a popcorn machine for it to serve customers bags of popcorn with butter, just like they do in the theater.
c. Get your hands on the movie posters, or print from your computer, and hang around the house, especially in the room where you see the movie.
d. Arrange the chairs and sofas in rows as if in a movie theater. Turn the lights down for the movie to get the full effect of being in a theater.
e. Make the bags with candy theater movement and bags of microwave popcorn to give to children in its output. Children can enjoy these delights next time you watch a movie at home on your own satellite TV.

Wednesday, July 20, 2011

How To Fix No Audio Error on The PS3

You have no audio error PS3? Looking for a way to get rid of this problem so you can finally play games again with the audio? In order to successfully repair the PS3 no audio problem, you have to try a couple of methods. In total, I have two options for you and advice from 4 to solve this problem. So let's start with the first 4 tips, of course: ... 1) Try to take care unit with HDD (hard disk) and put it back on your Playstation 3 with care. 2) Restart the console. 3) Carefully plug all cables except the power cord. Once done, put them back in. 4) Check for loose cables and restart the console. If these four tips do not work, then there is a hardware issue going on ... In order to troubleshoot hardware, you have to open the console and repair the problem from within. To do this, you can only do 2 things. Fix Errors ps3 Sony Audio One thing you can do is to be send your console to Sony troubleshooting. However, note that if the guarantee is invalid, you will pay $ 150. In addition, you must wait 2-6 weeks before the whole process of shipping, handling and repair has been completed. Therefore, do not really recommend going for this option even though many people are doing this, we are definitely losing a lot of money and time. Repair PS3 no audio problem on your own While many people are saying that this is not possible unless you have expertise, this option is perfectly possible to do. Therefore, as this option is exercisable, will not have to pay $ 150 and you will not have to wait several weeks, which is impressive. However, in order to successfully repair your Playstation 3 itself, it is necessary to know what to do. Therefore it is highly recommended that you start using a PS3 repair guide. In this way, you step by step to make a readable guide that comes along with the photo, but also get high-definition video and support staff along with current guidance. Why not take a look at the best guides for the repair? Visit: PS3 Repair GuideTherefore, in order to repair the PS3 no audio error, you can do two things. You send your console to Sony, which costs $ 150 for shipping, handling and repair. It also takes 2-6 weeks before the process is complete. Or you can use a PS3 repair guide which makes you able to fix your problem without audio on ps3 without losing too much money and time. Want to start fixing your PS3 Games audio problems? Today? Visit: Playstation 3 without audio

Tuesday, July 19, 2011

Class A Buffer pre-amplifier

A unit which is often useful, if we need to isolate, in sound circuits, two stage between them. Then we can use this circuit which has an amplified unit, which gain X1, we do not use total negative feedback, only local, with the result that distortion remains at a very low level. Matching must be done with great care to the types of transistors, resistor between them. There must also be thermal union between the transistors, as well as the diodes LED D1-2 with the transistor Q5 and Q2 respectively

List of Part

R1= 560 ohms C1-2= 100uF 25V Q2-4= BC560C
R2=  47Kohms C3-4= 47uF 25V Q3-5= BC550C
R3=  2.2Kohms C6= 1nF 63V ΜΚΤ Q6= BC560C
R4-7= 1Kohms C7-8= 100nF 63V ΜΚΤ Q7= BC550C
R5-6-10= 100ohms C9-10= 100nF 63V ΜΚΤ J1= 10pin Connector
R8-9= 47ohms D1-2= LED RED 5mm
R11-12= 10ohms Q1= BF 245C All Resistors is 1/4W 1%