STP-DM-A12

Professional Dynamic Microphone

This is a Professional Dynamic Microphone. There is no comparison of this microphone. You can compare it with any professional and expensive microphone and it will be the only winner. We have built its capsule that provides quick response diaphragm joint to the coil having an impedance about 150-160 Ohm. It has a good magnet built into it. 
This microphone has a very light weight. It looks very stylish and beautiful. Its body is made of pure plastic that is strong enough can't be broken easily.

Go and Build your own studio, manage live performances and big shows with the help of this cheap offer (Check out this amazing offer below)

Bundles

10 pcs $250.00 USD 7 pcs $200.00 USD 5pcs $150.00 USD

Its a best choice for:

• Vocals
• Live performances
• Recording Through Guitar Amplifiers / Sound Modules
• Recording from Tapes Cassette Players

•  TECHNICAL DETAILS: 

  It was tested in our lab for one month and finally we got the results. Its frequency response,sensitivity, frequency response curve looks amazing.
  Frequency Response :  16Hz - 20kHz
  Impedance                  :   150-160 Ohm
  Switch On/Off              : Resistance Break Switch
  
  
  

  How this microphone looks like....???

  Here are some pictures captured from iPhone to show you how it looks like.
  
  
  
  We are offering this Microphone in stock. You can buy at least one bundle. One bundle contains ten STP-DM-A12 Microphones with cables and converter jacks. Look them here below.
  
  
  
  
  

These cables and converter jacks (1/4inch to 1/8inch stereo) are made of high quality material.

BUNDLE Contains:

• Ten STP-DM-A12 Dynamic Microphones
• Ten 1/4inch to 1/8inch Low Noise Converter Jack
• Ten 1/4inch to XLR 3 pin Low Noise Microphone Cables
• One XLR to USB Interface for Dynamic Microphones. (Check its specification here)

Price of One Bundle:

Price of one bundle is 250$ USD + World wide shipping cost 0.50$ USD.

Bundles

10 pcs $250.00 USD 7 pcs $200.00 USD 5pcs $150.00 USD

 

We ship worldwide and takes very low charges 5$ USD. You can buy our projects from eBay, OLX.com.pk, Bolee.com.pk etc.
Free Delivery To Pakistan. 
We also deliver all over Pakistan and takes no charges. For purchasing in Pakistan we give a special discount offer that is 15000Rs per bundle. 
(To Purchase within Pakistan Contact Us by Phone Call).

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Project Details:

Project Code : STP-DM-A12

Warranty: Optional Parts Warranty

Price : 255$ USD (Inc Shipping) Charges

Sam Technology Professionals - We are promoting the World.
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STP-CM99-103

CONDENSER MICROPHONE

Its a perfect condenser microphone. Typical frequency response and samples are similar to STP-CM99-101 but its working is little bit different.
It requires no battery no USB plug to power it. It can be powered by Audio interface.
You can plug directly to your computer or laptop.

PICTURES:

Omnidirectional Condenser Microphone. High Quality Recording Microphone. Typical Frequency Response Curve. 2.2kΩ Impedance  

Suitable For: 

• Broadcast
• Vocals
• Musical Instruments
• Voice Recognitions
• Wildlife Recordings

 Parts:

• Toggle On/Off Switch.
• Atmosphere Changing Switch
• USB Jack Output

Very low noise performance. 

We can say its a Large Diaphragm Capsuled Condenser Microphone.

Weight is very light and its portable. It requires no other hardware.

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Project of       : Sam Technology Professionals

Project Code : STP-CM99-102

Status             :  Available

Price               : 2500 Rs - PKR   

STP-CM99-102

USB CONDENSER MICROPHONE

It is a fantastic USB Condenser Microphone. It works awesome with every Windows and MAC. You just plug its cable to your PC or Laptop and your PC or Laptop will detect it. It has its own driver so you just sit relax and it do all itself.

Frequency Response is similar to the STP-CM99-101

 

Omnidirectional Condenser Microphone. High Quality Recording Microphone. Typical Frequency Response Curve. 2.2kΩ Impedance  

Suitable For:

• Broadcast
• Vocals
• Musical Instruments
• Voice Recognitions
• Wildlife Recordings

 Parts:

• Output Stereo Female Jack 1/8 Inch.

Very low noise performance.
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Pictures:

Its uniqueness is its USB interface that is built in it. The USB interface is based on an IC PCM29XZ that supports High Definition Audio.

About its Capsule we can say its a Large Diaphragm Capsuled Condenser Microphone.

Weight is very light and its portable. It requires no other hardware.

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Project of       : Sam Technology Professionals

Project Code : STP-CM99-102

Status             :  Available
Price              :  3000 Rs - PKR

STP-DM-V02

VOCAL RECORDING MICROPHONE

Its a wonderful microphone for song recording. It is based on TL071 and some very low noise transistor BJT BC109. And its a noiseless microphone. Very good for recording songs and musical instruments like acoustic guitars and drums etc. Also it has a live mode where it will be acting as a dynamic microphone for live concerts or performances.

 

 This looks like a Dynamic Microphone but it doesn't contain Dynamic Microphone Element. Infact it has an elecktrek condenser microphone that is WM61a made by Panasonic. 

The circuit inside this microphone is balanced and regulates 48v Phantom Power from USB and provide it to the circuit. The capsule required 12v to get fully sensitive. And then the preamp stages amplify and boost their signals.
There is an on/off switch because without it it was going to be bad.
It comes in a box in which a connecting cable is free with it.
It works with Microphone Port or PC Sound Card but for the Low noise performance you can use it through your Line In or you can plug it into your professional audio interfaces.

DETAILS:
Project of       : Sam Technology Professionals
Project Code : STP-DM-V02
Lifetime         : 15 Years
Warranty       : 1 Years Kit Warranty (Expired if Damaged or Opened)
Status            : 10 Sold / 17 Available  

STP-DM-V01

 Vocal Microphone (USB Powered)

This is an awesome vocal microphone we build it few minutes before. It is a similar version of STP-CM99-101 which was a perfect Condenser Microphone but wasn't so much suitable for Heavy and professional vocal performances. This works very similar to that one but with the presence of a high quality and expensive Dynamic Microphone Element. Its performance is very cool. It is very sensitive to the vocals and other sounds.

Some changes was done to its Element. That was the alteration of the Diaphragm of the Dynamic Microphone element which is just a speaker of  headphones. We replaced this diaphragm with a very thin layered plastic transparent  sheet Diaphragm. And so the frequency response become equivalent to the professional condenser microphones.

We purchased some cheap Dynamic Microphone Case to fit our circuit board, switch, LED and capsules in it. This was done successfully.

After that few samples were recorded and it sounded awesome.

This is the capsule direction.  

 Here you can see the on/off switch that looks cool.

 Here you can see the white crystal LED which lights up when the microphone is turned on.

 Here on the bottom side of this microphone we used a round rubber pieces. And fix the wires because if they move several times they may get damage from inside. So it was done for its safety and Long life.

 Very High Quality USB Cables to provide power was used in this microphone. And an expensive low noise Audio Cable was used to  connect the stereo output jack into this wire.

It works wonderful and in fact awesome with Audio Interfaces.

Here you can take a look of its USB Cable

Here you can see the stereo audio output cable that is connected to the 1/8inch stereo Audio male jack.

SOUND SAMPLES:

When i am 5 feet away from the microphone. UPS Working CPU working these sounds can also be heard in these samples.

And here is another sample when i am 5 inches away from this microphone.

COMPARISON OF NORMAL ECM AND STP-DM-V01

We are here with more sound samples and we are here comparing Normal Computer Headphone Microphone which consists of an Element which is an Electrek Capsule WM61a and Our project that contains Expensive Thin Diaphragm Dynamic Mic Capsule.

So Here we have Vocal Actions 

Vocals were recorded on normal microphone ECM Wm61a

Same Vocals on Our STP-DM-01V Microphone were recorded: 

And Here we have paragraph reading recording:
A paragraph recorded on Normal Computer Microphone ECM Wm61a

 

Same Paragraph was recorded with this STP-DM-V01 Microphone:

After this comparison it is very clear that our "STP-DM-V01" is currently a winner microphone.

After listening to these samples any one can make a final decision about which type of microphone is required for what purpose.

Here we have its frequency response curves

Project Details:

Project By : Sam Technology Professionals

Project Code : STP-DM-V01

Body Type :  Plastic Body

Lifetime     : 15 years
Warranty   :  1 Year   (Expired if damaged or opened)

USE IT FOR:

• Vocal Recording .
• Wildlife Recording.
• Air Sound Recording.
• Broadcast Recording (Tutorials etc).
• Musical Instruments Recordings.
• Voice Recognition Software.
• Audio Dubbing along Video etc.

 Ad was posted to OLX today for selling it for 3500/- Rs Here you can see - CLICK HERE
STATUS : 49 SOLD / 91 Available

STP-CM99-101

USB POWERED CONDENSER MICROPHONE

SOLD  For 25$

Its a Condenser Microphone. Which takes power from USB port of computer and requires no battery. There is a toggle switch to turn it on and off. Audio output is taken from 1/8 inch female jack through a stereo cable to line in of computer. Or 1/8inch to 1/4 inch jack cable is used to connect it with pro audio interface.

Omnidirectional Condenser Microphone. High Quality Recording Microphone.
Typical Frequency Response Curve. 2.2kΩ Impedance
Suitable For:

• Broadcast
• Musical Instruments
• Voice Recognitions
• Wildlife Recordings

 Parts:

• Toggle On/Off Switch.
• LED Indicator.
• Output Stereo Female Jack 1/8 Inch.
• Very Light Weight.
• Portable.

Very low noise performance.
Package Contains:

• Microphone
• 1/8inch to 1/8inch Stereo Audio Cable

 SOUND SAMPLE:

Here is how it record Acoustic Guitar

Its action on Vocals:

DETAILS: 

• Designed for high resistance to vibrations, high signal-to-noise ratio.
• High sensitivity type.

Capsule used in this microphone is our project. Its model was given as "STP-611-BECMC-01"

It is very sensitive capsule that can caught the sound of surrounding too.

Frequency Response Curve:

Sensitivity is about –35±4dB (0db = 1V/pa, 1kHz)
Impedance Less than 2.2 k
Directions Omnidirectional
Frequency 20–20,000 Hz
Max. operation voltage 10V - 12V
Standard operation voltage 4.5V
Current consumption Max. 800mA
Sensitivity reduction Within –3 dB at 1.5V
S/N ratio More than 62 dB

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CLICK TO VIEW ITS CIRCUIT DIAGRAM & MORE DETAILS

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Project of "Sam Technology Professionals"
Project Code : STP-CM99-101
Warranty       : No
Parts             : Repairable
Lifetime         : 10 Years
Color             : White

STP-1119-AR-206

6 Ohm-50W Guitar Amplifier

This is a 50W Guitar Amplifier. (Guitar Practice Amp)
Original Pictures Attached. Loud and Clean Sound.
Contains One 50W-6Ohm Speaker (5.5inch)
It works 100% fine.
It is suitable for Electric Guitars and Semi-Acoustic Guitar.

 One 100K Ohm Potentiometer Use to control the gain of input from any guitar or signal generating devices. It works with electric guitars. You can use guitar effect pedals with it. It has clear and loud sound. It has a 5.5inches large speaker.

It has one input and one output. Purpose of output is to attach external speakers.

Circuit contains a 12v -2Ah transformer and a rectifier capacitors and resistors filter to attain clean output. Speaker's output is balanced by putting resistor and a capacitor from out +ve to GND.

 One toggle on/off switch connected after the transformer. One red LED indicates the power on/off.

 Works very well with effect pedals using buffers if required. Specially suitable for Semi-Acoustic and Electric Guitars.

 Light weighted wooden Box as shown in the pictures.
Circuit is designed by "Illusion Semi Conductors Team" (Winners of Designing Circuit From STP)

Circuit is based on an expensive high performance IC LA4440a.

 FINAL PRICE : 2000/- Rs. pkr (Negotiable)

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Project of "Sam Technology Professionals"
Project Code : STP-1119-AR-206
Warranty        : Limited Parts

 In the newer version STP-1119-AR-207 we'll be adding bass treble and Volume knobs to control tone.