Skema box line array 12" + twetter

Skema box line array 12" double + twetter E212

READMORE...

Skema Box Bass CBS 18"

box Model CBS ini memiliki suara  glerr dan nonjok di dada , Box CBS yang di desain oleh agung mbantul ini sudah banyak yang memakai dan puas akan suara yang dihasilkan. Harus diingat untuk box bass ini baiknya menggunakan multiplek yang bagus serta memiliki ketebalan minimal 18mm, serta memasang skat dan brace2 agar box kuat dan kokoh sehingga tidak terjadi getar pada box. Box jenis ini bisa memilih dua opsi yaitu memilih menggunakan satu box atau dua box dengan cara menerapkanya pasang bongkar maupun dibikin permanen alias tidak di gandeng dengan speaker atasnya.

Skema box cbs 18"

 Meski memiliki banyak kelebihan, namun box jenis ini juga memiliki kekurangan yaitu Kelemahan cbs antara lain

1.  Memakan multiplek atau bahan 
2.  Terlalu berat karena harus menggunakan dua box 
3.  3Memakan tempat karena kebanyakan box

READMORE...

Box Speaker CBS 12" Double + Twetter

Skema box CBS 12"  Double + Twetter cocok untuk panggung maupun dirumah, karakter suara yang dihasilkan low,mid,high karena box jenis ini memang mampu mengeluarkan suara bass yang lumayan mantap apalagi jika didukung speaker dan PA yang mumpuni pasti sangat mantap dengan hanya menggunakan speaker berukuran 12" dimana speaker 12" biasa digunakan untuk vocal saja namun dengan box ini suara bass juga akan keluar.

Skema Box Speaker CBS 12"  Double + Twetter

READMORE...

Kumpulan Skema Box Monitor Panggung

Berikut ini adalah kumpulan sekama  box monitor panggung untuk speaker 12" dan 15" lengkap dengan ukurannya,  untuk selanjutnya anda bisa kreasikan sendiri.

READMORE...

Box Speaker Planar Horn 18inc 18SW1P

Berikut ini gambar serta ukuran box speaker subbass planar horn Selenium 18SW1P, versi complit dari ukuran serta dimensi segala sisi, model  box speaker berikut hampir sama dengan SUBBASS SHORT PLANAR HORN.C 18-600LF ukuran serta design tidak jauh berbeda,hanya pada fentilasi kalau yang ini menjorok kedepan dan panjang.

Bila membahas tentang kelebihan dan kekurangan box planar horn ini tentu saja setiap box speaker dengan berbagai desain dan bentuk juga memiliki kelebihan serta kekurangan masing-masing.

Kelebihan Box Speaker Planar Horn.

1. Desain yang mudah untuk di buat sehingga kita bisa secara mudah mengukur dan memotong bahan atau papan.
2. Model box ini bisa membuat spekaer lebih awet atau tidak membuat speaker cepat rusak, karena pada setiap sudut terdapat lubang udara sehingga akan membuat daun speaker tidak mudah robek. Selain itu fentilasi udara yang pas akan membuat keseimbangan antara getaran speaker dan angin yang keluar sehingga spul speaker tidak cepat panas atau rusak.
3. Suara yang dikeluarkan atau frequensi yang dihasilkan bisa terjangkau di segala arah sehingga suaranya terasa mantap baik di lokasi maupun jauh dari lokasi.

Kekurangan Box Speaker Planar Horn.

1. Suara yang dihasilkan akan cenderung ke bass low mid sehingga box ini kurang cocok jika kita ingin nada bass yang terlalu empuk.
2. Ukurannya agak besar sehingga kadang kala harus menyesuaikan lokasi yang untuk box ini.

READMORE...

Box Speaker Planar Horn 15 " Single

BOX MODEL PLANAR HORN memang sudah lama sekali menjadi favorit para pecinta audio amatir maupun profesional. Hal ini mungkin karena jenis box speaker planar horn memiliki kararakterisitk yang baik sebagai sepaker SUBBASS untuk digunakan baik didalam ruangan maupun luar ruangan.

jenis box speaker ini ditandai dengan ciri utamanya yaitu dilengkapi dengan 4 ventilasi udara berbentuk kotak/bujur sangkar pada keempat sudutnya serta letak speaker yang menjorok masuk kedalam persis seperti planar horn atau cerobong asap . Desain speaker Planar termasuk dalam model bass reflex, yaitu mengadopsi model planar horn yang dengan ciri memiliki cerobong supaya jangkauannya jauh

kelebihan utama dari box subbass ini, yaitu memiliki dentuman bass yang mantab, yang tak hanya terdengar di dilokasi namun juga terdengar baik di kejauhan. box planar ini sangat cocok bagi Anda yang menyewakan audio sound system untuk keperluan apa saja, baik indoor maupun outdoor.

Kelebihan box speaker planar ini adalah :

1. Tidak akan membuat speaker cepat rusak. Karena ventilasinya yang ada disetiap sudut maka daun loadspeaker tidak cepat sobek dan spul tidak mudah panas. 
2. Desainnya mengadopsi planar horn atau bentuk cerobong asap, maka bass yang dikeluarkan bisa terdengar jauh diluar lokasi dan juga mantab didengar dilokasi. Artinya suara bisa terdengar disegala penjuru. 
3. Desain tidak terlalu rumit karena kita tidak perlu untuk memotong diagonal atau membuat potongan-potongan kecil. Dengan membuat box speaker planar, siapapun pasti bisa asalkan bisa mengukur bahan dan menatanya. Soalnya memotong bahan berbentuk besar dan persegi tidaklah sulit.

Kelemahan  box planar adalah :

1. Dimensinya yang lebih besar daripada box speaker pada umumnya dengan INCH yang sama. Hal ini tentu saja akan memakan banyak ruang dan tentu bahan yang akan digunakan

Skema (Ukuran) box planar 15" single adalah sbb:
 

READMORE...

Box Speaker 18" Model Dynacord

Berikut ini adalah gambar dan ukuran box speaker model dynacord. box jenis ini sangat cocok, untuk acara dangdutan (orkes), karena tendangan bassnya yang baik, dan lemparanya cukup jauh... kelihatan nya sih nampak begitu simple dan biasa saja tapi jangan salah karena sudah terbukti masih mantap sampai jarak 300 M hanya menggunakan 2 buah speaker ACR Deluxe 18 inch, bass masih terdengar jelas dan bulat, kalau 2 speaker saja sudah mantap apalagi 1 jagrak, gimana, mantap to, yo mantap pokok'e lah....

 Ukuran box speaker 18" model dynacord

READMORE...

Box Speaker Subwoofer 18" Untuk Out Door/ Lapangan

Box speker  yang di design untuk subwoofer atau bass ini cukup sederhana tapi memiliki kemampuan luar biasa, walaupun di design di freq sub/ rendah tapi juga masih bisa mengeluarkan freq yang lebih tinggi. Lemparan suara yang di hasilkan lumayan jauh, dengan memasang 4 buah box speaker 2 buah disetiap sayap dengan jarak 15mtr masih bisa menggetarkan seluruh baju yang anda anda kenakan dengan level sedang.

 

Ukuran Box Speaker Subwoofer 18"  

READMORE...

Box Spekar Kayu Untuk Speaker 2 x 15"

Bagi temen-temen yang pingin irit  mencoba membuat box speaker sendiri untuk speaker 15 inc double dalan 1 box berikut ini saya berikan ukurannya, model box ini sangatlah sederhana dan mudah untuk membuatnya sendiri dan hasilnya lumayan, untuk kelas indoor sudah lebih dari cukup, dengan ruangan berukuran 10 x 10 meter dengan 2 box speaker model ini jika didukung dengan PA yang sesuai nada rendah/ bass sudah mampu menggetarkan baju yang anda kenakan, untuk hasil yang baik gunakan papan polywood min 1,5 cm dan gunakan lem kayu untuk merekatkan tiap sisinya...

Ukuran Box Spekaer 15"

READMORE...

Ukuran Box Subwoofer 10"

This subwoofer box was created to match and aid the 1.618 Hi-Vi 3-way tower loudspeakers. The main focus of the HiVi 10" subwoofer was to reproduce ultra low frequencies that the 1.618 could not reproduce and aid in overall low end musical reproduction. Low, flat and not "boomy" was priority one. This subwoofer project uses the 10" subwoofer driver which can deliver plenty of bottom end.

The enclosure design and model frequency response are shown below.


Note:

• 10" 4 ohm subwoofer
• O-Audio 500 Watt plate amplifier
• Freq Response: 25Hz up to chosen x-over point.
• Overall Dimension: 21"x 12.75"x 20"

For more details on how to make it please read more http://diyaudioprojects.com/Speakers/HiVi-DIY-Subwoofer/

READMORE...

Power Meter Schematic For Audio Amplifier

This is a simple schematic of audio power meter using LM3915 IC, this schematic can be used to measure the actual output power of your amplifier. For an audio engineer, this schematic Seems to be very helpful, especially for checking of sound system installation and field testing. Due to its logarithmic scale, the wide range of audio output with only ten scales cans Also be measured. If you take an attention to the pin number 5 of the LM3915, see That you will from the input is not yet Rectified. At this input pin, the negative swing will from the present. However, it is harmless since the current is limited by R1, the LM3915 earnest therefore respond only to positive cycle.

Schematic of Power Meter For Audio Amplifier

Note:

When the speaker resistance is 4Ω, then, make R1=10kΩ, if the resistance of speaker is 8Ω, make R1=8kΩ, and if the resistance of speaker is 16Ω, make R1=30kΩ.

The absence of peak detector or the detector will of averages give the circuit a fast reading of instantenous power, and this Gives us insight of both average and peak condition. For more readable peak or average mesurement, you cans use peak or average detector circuit.

source : national semiconductor application notes

READMORE...

Sound Level (Decibel) Meter Circuit

This is a decibel meter electronic circuit, For an audio engineer, this circuit seems to be very helpful, especially for checking of sound pressure levels from about 60 to 70 Decibel (dB). EACH light represents about a 3dB change in sound level so That Pls all three lights are on, the sound level is about 4 times Greater than the level needed to light one lamp. The sensitivity cans be adjusted with the 500K pot so That one lamp comes on with a reference sound level. The other two lamps will from then indicate about a 2X and 4X increase is in volume.

Circuit of Sound Level (Decibel) Meter

In operation, with no input, the DC voltage at pins 1,2 and 3 of the op-amp will be about 4 volts, and the voltage on the (+) inputs to the 3 comparators (pins 5,10,12) will be about a half volt less due to the 1N914 diode drop. The voltage on the (-) comparator inputs will be around 5.1 and 6.5 which is set by the 560 and 750 ohm resistors.

When an audio signal is present, the 10uF capacitor connected to the diode will charge toward the peak audio level at the op-amp output at pin 1. As the volume increases, the DC voltage on the capacitor and also (+) comparator inputs will increase and the lamp will turn on when the (+) input goes above the (-) input. As the volume decreases, the capacitor discharges through the parallel 100K resistor and the lamps go out. You can change the response time with a larger or smaller capacitor.

Source: www.bowdenshobbycircuits.info

READMORE...

Rangkaian Speaker Protector sederhana

Speaker Protector sederhana

This circuit follows will connects the speakers to the power amplifier output only a few seconds after the amplifier is powered ON, so that the speakers do not accept popped up by a high voltage and you would not Hear a loud thud sound from the speakers When the amplifier is switched on. This stuff is very harmful to the speakers.

Skema rangkaian speaker protector

When the amplifier is powered on the bridge D1 also gets powered through the amplifier’s power switch. Capacitor C1 filters the output of bridge rectifier D1. When the power switch is made ON, the transistor Q1 gets switched ON only after the capacitor C2 is sufficiently charged (0.7V) through the resistor R1. Here the value of C2 and R1 are so selected that the time delay is around 2 seconds. So the relay gets activated only after a few seconds the amplifier is powered ON and until that time the speaker will be kept isolated from the amplifier’s audio output as the speaker is connected to the amplifier’s output through the N/O contact of the relay. During this initial delay period the output of amplifier will be grounded by the resistor R2 through the N/C contact of the relay. This is done in order to ensure that the DC blocking capacitor at the amplifier’s output is charged before it is connected to the speaker.

Better quality speaker protector Circuit

READMORE...

Rangkaian Relay Penunda Speaker

The following is a series of speakers delay relay useful as a delaying the speakers. The purpose of this delay circuit is as a deterrent to prevent pounding of the very first amplifier is turned on.

This delay circuit has the advantage that is: if there konsleting, relationship with the speaker amplifier circuit will be immediately cut off, so that the speaker is safe from fire. waiting time or delay time is about 5 seconds, and can be altered by changing the condenser C2 with elco smaller value. The time needed to re-open relay if the current cut off about 0.5 seconds.

Skema Rangkaian Relay Penunda Speaker

About Relay Contacts


A relay is an electrically operated switch. Electric current through the coil of the relay creates a magnetic field which attracts a lever and changes the switch contacts. The coil current can be on or off so relays have two switch positions

Gambar Relay PWR SPST 16A 24VDC

A simple electromagnetic relay, such as the one taken from a car in the first picture, is an adaptation of an electromagnet. It consists of a coil of wire surrounding a soft iron core, an iron yoke, which provides a low reluctance path for magnetic flux, a movable iron armature, and a set, or sets, of contacts; two in the relay pictured. The armature is hinged to the yoke and mechanically linked to a moving contact or contacts. It is held in place by a spring so that when the relay is de-energised there is an air gap in the magnetic circuit. In this condition, one of the two sets of contacts in the relay pictured is closed, and the other set is open. Other relays may have more or fewer sets of contacts depending on their function. The relay in the picture also has a wire connecting the armature to the yoke. This ensures continuity of the circuit between the moving contacts on the armature, and the circuit track on the Printed Circuit Board (PCB) via the yoke, which is soldered to the PCB.

READMORE...

Rangkaian Crossover Pasif

Crossover is a tool to limit the "frequency range" to be accepted by the speaker. Imagine the crossover act as police at a traffic, which regulates the flow to the tweeter, the midrange and bass to the subwoofer.

Imagine if there was no crossover, the frequency will be chaos, there is a low frequency stray in tweeter, high frekwesni stray into the subwoofer, so it is not effective and also if there are strange treble sounds in the bass , and also can be broken tweeter for bass voice. so need to let it all directional crossover.

Skema rangkaian crossover pasif

Notes:

• Capacitor must be non-polar capacitor types with a voltage rating of 50 volt or more (preferably 100 volt).
• Capacitor may be paralled to achieve specified values.
• Resistors should be 100 Watts or more.

Cara menentukan nilai induktor

This is the formula to calculate the inductance value of an inductor. Of course, this formula can be inverted to calculate the number of inductor winding inductance if its value is determined.

• L: inductance in H (Henry)
• m: permeability core (core), m = 1 (Special inductor without core / winding water)
• mo: vacuum air permeability, mo = 4p x 10-7
• N: number of inductor winding
• A: inductors sectional area (m2)
• l: length of the inductor (m)

READMORE...

Grafik Untuk Menentukan Ukuran Box|Kotak Speaker

The problems that often appear when you want to make a speaker box set itself is large so that the required optimal results? When the box is too large, then the low tones produced less power, but if it feels too small voices will explode feel-ledak low frequency response and the resulting reduced. In short, either too large or too small so low a tone you would expect we will not be generated properly. Akan problems but most of the other speakers in the local market does not have nearly the complete list with the specification. Usually only the size of the diameter, Impedance nominal and maximum power, such as 12 ", 8 Ohm, 400 watts. That's it.

Based on a book publication that includes techniques to create speaker closed with a conventional way using only standard diameter speaker. In the book charts given volume needed by the speaker based on the diameter of a closed box speakers are as follows:

Grafik Untuk Menentukan Ukuran Box|Kotak Speaker

With:
X = Diameter speaker
Y = volume Box (in Litre)

Diameter Speaker

The graph above shows the limit above and below the limit of the required volume in liters. For example, the speaker berdiameter 6 "- 6.5" that many circulating in the market, the volume required is between 8.8 liters to 12.7 liters. The graph is expected to be useful for many who want to make a good speaker system using the materials in the local market

and the following list of Size Speaker Box based manufacturer ACR output, you can also use it

• 12″ ACR – 12360 – 139.53 liter
• 12″ ACR – 12380 – 124 liter
• 12″ ACR – 1225 – 173.19 liter
• 12″ ACR – 1240 – 79 liter
• 10″ PA – 10880 – 42 liter
• 12″ PA – 12880 – 103 liter
• 15″ ACR 15610 – 222 liter
• 15″ ACR 15750 – 155.62 liter
• 15″ ACR DELTA 15 – 188 liter
• 18″ AX 18420 GRAND ACR NEW 450 liter
• 21″ AX 21800 GRAND ACR NEW 640 liter

Note:

• A litre is defined as a special name for a cubic decimetre (1 L = 1 dm^3 = 1000 cm^3). Hence 1 L ≡ 0.001 m^3 (exactly). So 1000 L = 1 m^3 (see table below)
  

Table litre to cm3

Source www.banuaji.blogspot.com

READMORE...

Bentuk Box|Kotak Speaker Yang baik

In addition to Volume speaker kotak|box, box shape also affect the sound in the generate. To get a box the size of the speakers can be read here.

form of box speakers(Bentuk Box) in the book actually does not have a written rule., But from some research done by the experts, form the most easily made with the results of which are quite good in terms of four and the worst in the form of a cube which is the size of all high, kedalamannya width and the same.

In addition to form, the use of bracing on the inside of the box is also highly recommended. Bracing as the brace is working out of the box as a deterrent and the occurrence of vertical waves (standing waves) that can disrupt the sound generated by the speaker. Vertical waves this can be overcome with the use of bracing and the use of glass wool reducer such as foam or the many available in the shops that sell electronic components. Installation glass wool should be thick on the walls in each box except the front wall of the reducer does not need to be coated. Too much of the reducer can be adjusted with any taste. If the bass sound produced is too hard, so should be added peredamnya but if sound basnya too teredam or even nearly lost, the need to reduced.

For comparison demensi length - width - depth and, some experts suggest a ratio (comparison) in order to obtain the right shower sound good. Suggest that there are 2.6: 1.6: 1 and have also suggested a comparison of 2: 1.4: 1

For example, for the volume of 15 liters, then we can specify the size of a high - width-depth with the ratio 2: 1: 1.4 as follows:

Specified width of 18 cm (1), high 18 cm x 2 = 36 cm (2), depth 18 cm x 1.4 = 25 cm .. Please note, this is the size of the box, so not including the thickness of the box to make.

Thickness of wood to be used should be used over a thickness of 1.5 cm is intended to get a strong box and vibration free. Wood is commonly used particle board or MDF, or the call type multiplek. Installation of speakers in the box is also important to consider. If possible, have well made the box so that the average speaker chassis with box or flush mounting is called normal. This is a very big influence on the emission of sound determine the quality of sound produced.

READMORE...