Handmade speaker basic lecture �F
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　 Masao ida　
　It is a basic lecture for making a handmade speaker.
　From a beginner, please also looking-obtain maniacs and enjoy
　a handmade speaker.
　It was made the English version so that he could also understand
　overseas one.

　Introduction of the speaker of Mr. Nagaoka design

　It is easy to make from the speaker of a certain Mr. Nagaoka, and 500 are
　high of an effect.
　The car was packed. It is the acquisition method which goes into a hand
　 about a plan now.
　

　(10) Sub woofer

　　(1) Ｓｕｂ ｗｏｏｆｅｒ Fur Only for Method Ships of [ SW-7 ]"




　　　
　　　　　　　　　　　　　　　　　　　　SW-7
　　　　　　　　　　　　　　　　　By Mr. Nagaoka





　 "Mr. Nagaoka is as a super woofer of the 3rd generation of "Way ship".
　　FW208N were designed and manufactured only for the usage from one side 3."
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　








　　　　　　　　　　　



　 The 900Wx322Hx750D duct has turned [ outside ] to the front.

　The unit is attached to the outside on either side. It does not go into a dire
　ct ear.
　A coil uses the large-sized coil containing 6mH , and is at 70Hz / 6 dB/oct.
　The high cut is carried out. It is the greatest super woofer.

　 Take sole possession with NessieII and III as a super woofer for home theaters.
　It was alike and was made. Since it is a length type, Nessie is on the side of a
　 screen about Nessie
.
　If a screen is placed on this Ufa, it will come exactly.

　If it is a room for home theaters also at a general home, naturally it can use. Home
　It is perfect if it is the room designed for theaters.

　 FW208N are 3 parallel connection and a terminal is a before [ The attachment
　 hole of a speaker　 slippage of ] side.
　It attaches in the position of L and R symmetry, and is [ are and ] in it.

　 The super woofer of a "way ship" is also board thickness with fin land ｂａｒｃｈ
　 material plywood.

　It is changed and manufactured by 18mm.


　　 Plywood 21 thick four-sheet use FW208Nx6 Terminal T100 2 sets
　　　A sound-absorbing material, a wiring code, a bond



Since, as for Mr. Nagaoka, smaller woofer is also designed
We recommend you lower Sub woofer.
　　
　　　





　(2) SW-5MKII

　The Sub woofer for Nessie of a "way ship"

　 No. 2 of the "way ship" used FW208Nx2(one side) a total of 4 and four
　coil 9mH(s).
　Since Heavy low-pitched sound is insufficient, 30-80Hz of Nessie of
　 "way ship" is compensated preponderantly.

　It is not the size which cannot be placed although it is about depth at
　 ordinary homes.

　Sub woofe is now at a home theater for home use, although it has become
　two. It is enough. Since it is a length type, Nessie is under a screen about
　 this woofe.
　If two sets are placed, it is designed so that it may come exactly.


　　 A duct turns [ outside ] to the front by 600Wx342Hx910D.
　　21mm thick 910×1820mm board plywood is made from three sheets two sets.

　As for the present unit, to change into 185mm is
　[ the path ofattachment hole ] good FW208N.
　
　　　　　　　　　　　
　　　　　　　　　　　　　　　　　　　　　　SW-5MKII


　





　(3) SW-208

　An orthodox and full-scale super woofer
　 Use [ FW208Nx2 / coil 3.5mHx2 ] it.

　 The Sub woofer of a PPW system (push pull Ufa)

　It is that in which Mr. Nagaoka experimented first, and a unit is in an inside.
　The 1st Cabinet is on the unit of a bus reflex, and a hole is vacant with
　 bus reflex structure.

　It is. Also for the 2nd Cabinet , bus reflex structure and sound are radiation
　 of the 1st Cabinet and the 2nd Cabinet .
　It becomes composition of A PPW system is what used two sealing boxes
　as the bus reflex.

　 In the outside, the 342Wx663Hx450D unit serves as facing up.


　Two 21mm thick 910×1820mm board plywood is used. it is not a home theater
　 common
　It can put on the room. We recommend Low sound to the direction to sound
　firmly.

　 common, since a speaker is not a type with 2 necessities and built-in amplifier
　It connects with amplifier. ..... I want to looking-obtain the connection method.
　


　　　　　　　　　　　　　　　　
　　　　　　　　　　　　　　　　　　　　　　　SW-208



　
　　　　　　　　　




　　

　

　(4) SW-168

　The Sub woofer combined with a mini speaker

　 Use [ FW168Nx2 / coil 3.5mHx2 ] it.

　 The Sub woofer of the PPW system which has a duct forward and backward
　 (push pull woofer)

　A unit is in an inside and the central partition version is the 1st before a unit
　at attachment hole
.
　the rear of bus reflex structure and a unit is the 2nd Cabinet with a duct
　and huge at Cabinet
　A bus reflex with the duct. It was made to emit only Low sound from the rear.

　A cabinet is a length type, carries a mini speaker on ｗｏｏｄ, and is a stand
　substitute.
　It can use being able to be alike.

　It is not troubled by the place placed since a unit cannot be seen. A unit is
　easy FW168N.
　It high-rigidity-round-frame-adopts [ of an establishment meter ], and has the
　out　standing Low sound reproduction capability.

　　　　 An outside is 250Wx570Hx360D.
　　　　Two 21mm thick 910×1820mm board plywood is used .
　
　It connects with amplifier. ..... I want to looking-obtain the connection method.


　　　　　　　　　　　　　
　　　　　　　　　　　　　　　　　　　SW-168





　　　　　　　　



　　



　(5) Connection between Sub woofer and Amplifier

　　　 Connection with an AV amplifier

　 There is no product having the power amplifier for Sub woofer furs in an
　AV amplifier.
　However, it is Sub woofer if 2 sets of main speaker terminals are equipped.
　It is connectable with a fur.

　A is connected to a main speaker, B is connected to a Sub woofer, and it
　sounds simultaneously.
　Things are made. Only for a channel, a Sub woofer is connection and
　 2 substitutes.

　 woofer is made and it can reproduce.

　In addition, an AV amplifier is a product having the power amplifier for Sub woofer
　Although investigated in onｋｙｏ, YAMAHA, etc., there was nothing.


　* Each channel of 5.1ch(es) isolates Surround of AV amplifier use completely.
　At what was carried out (the De Dis lied Surround), the latest AV amplifier is
　THX Surround
　The thing corresponding to Surround EX or DTS-ES also has a cheap price
　and goes into a hand.

　The YAMAHA AV amplifier with 2 sets of main speaker terminals

　　　　　　　　DSP-AX440, AX540, AX640, AX740
　　　　　　　　DSP-AX1300, AX1400, AX2300, AX2400
　　　　　　　　DSP-AZ2, AZ1
　　　　　　　　　　　　　　SP OUT

　　　6ch(es) 8 terminal [main L/R "A/B", a center, rear L/R, a rear center


　　　　　　　　　　

　　　　

　　 Connection with stereo amplifier

　 A handmade Sub woofer is connectable with ordinary stereo amplifier.
　For stereo amplifier, a main speaker terminal is AB and Ann equipped with
　2 sets.
　There is The main is connected with A and a Sub woofer is connected with B.

　And it also sounds independently or, naturally can do. [ sounding simultaneously ]

　 The DVD player and the broadcasting satellite tuner have an analog voice
　 input-and-output terminal.
　this terminal is used by and a Sub woofer is sounded with stereo amplifier
　Things are also made. Connection uses a RCA type audio pin code.





　(6) My Handmade Sub woofer

　　　　　　　　　　　
　　　　　　　　　　　　　　 　　 　　　　　By Masao Ida
　

　　 Connection with my stereo amplifier

　AUX input terminal R/L of the output terminal R/L-> stereo amplifier of DVD
　CD input terminal R/L of the output terminal R/L-> stereo amplifier of D-VHS


　 When it connected in this way, at my home theater, it is a Sub woofer
　 fur splendidly.
　It is playing an active part by carrying out.

　 This is important.

　 Ｆｏｓｔｅｘ FW305 Two woofer of 30 cm were used.
　Reproduction frequency band F0-3.5kHz

　Cut inside low-pass using LC3D of Ｆｏｓｔｅｘ, and output heavy low-pitched sound.
　Crossover frequency 100Hz

　 Enclosure converts the monitor 2000 of onｋｙｏ

　The thickness of a board is [ weight with 40cm ] and is strong at MDF material.

　It enclosed with the China plywood with an outside => thickness of 5mm. That it
　is dirty in ancient times and reinforcement
　 pasted with the bond in -cum-

　The inside was made into double bass reflex structure so that low-pitched sound
　 might come out further.
　It became that over which it passes enough as a Sub woofer.

　Low sound is the lower part although the position was turning the speaker unit
　up in the beginning.
　Since it outputs more, it this form now.
　　
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
　(7) BS Digital is Sub woofer.

　 In connection, I thought that the shortage of Low sound was unavoidable with
　the broadcasting satellite tuner.
　However, the place and Low sound which were connected to stereo amplifier
　as mentioned above are force redoubling.

　it is like DVDs, such as force of Low sound of especially favorite orchestra,
　and a program of a nature
　Although vibration was differed from, Low sound increased in the sound which
　was being heard until now.

　 If there is a Sub woofer, in that there is nothing, a difference will be made
　 clear.

　For employing BS digital high-definition television broadcasting efficiently as
　a home theater, it is Sub woofer
　Existence of - fur was big.

　A Sub woofer with amplifier can also be used. But it is the speaker of AB to
　amplifier.
　If there is a - terminal, I will consider it more interesting to make from handmade.


　The force of a movie is vibration of super-pile low-pitched sound..
.

　If it is powerful amplifier, a considerable vibration and heavy low-pitched sound
　will come out. However, it is in an individual target.
　Music is a back load phon and likes the sound without aSub woofer .
　However, AV is putting in a powerful vibration using the Sub woofer.