It is offered to your attention Acoustic System (AS)
JENSEN-ONKEN on loudspeakers CIARE
In the AS insert loudspeakers: on LF PW251, on HF PT382.
the AS has the
a range of frequencies: 36Hz (-10dB), 48Hz (0Дб)....
(in LF-area parameters settlement).
If the mode, when pressure hardly less, and LF is
- More low, it is possible to put simply pair of books
in the central tunnels (reduces on 5Hz a minimum)
Passport sound pressure of LF loudspeaker of
the Sizes (width x height x depth in centimeters) 61.2 x
95,2 (c HF) x 35
Weight of 30 Kg
АЧХ (in a living room) more or less authentically it was
possible to remove
Only about 500 Hz (red - a phase):
the Sizes of boards and реек for one AS:
a lobby (1шт): 520мм x 750мм
top (bottom) (2шт): 612мм x 350мм
tunnels (2шт): 271мм x 750мм
back (1шт): 580мм x 750мм
рейки basic (4шт): 30мм x 30мм x 287мм.
screws-samorezov long 31мм - more 200шт
HF section: 170мм x 300мм (a hole in diameter 120мм
The center) and the bottom shelf 240мм x 200мм,
from above and filters are closed by half of a plastic
обклееного self-sticky under color
the Front view:
the Side view:
LF and HF sections are completely independent, in LF there is a
coil, in HF
- filter high lloudspeaker
LF loudspeaker it is finished: c an inside suspend diffuser:
By solvent "646" (russian, aceton + ceton) it is removed partially filled in between folds
Impregnation in such a manner that resonant frequency as a result would
It is necessary to wait days (approximately so much impregnation is
To check up result.
As a result are received such T/S data:
Fs = 45 Hz
Re = 6.2 Ohms
Qms = 2.1
Qes = 0.41
Qts = 0.343
Mms/d = 31.8 gr
Sd = 3.730E-02 m^2
Vas = 76,6 l
The rest in factory PDF
On frequency of section from 2.5 KHz to 4 KHz both dynamics work
Simultaneously, but falling down (LF) and accruing (HF) cross on level
Result the total level is not enough variable (it is connected
with smooth recession
LF dynamics above 2.5 КГц and undesirability of work with full level on
Frequencies more low 3 КГц at HF dynamics.
As a result equal sounding in "a problem zone" as has turned out at
Measurement, and listening of a various material.
For manufacturing the AS are used laminated boards from MDF
16мм, as the most widespread material.
the Forward wall is strengthened in the bottom part around, cut
out of this
Panels (a hole under динамик, it is necessary and to cut at once a
carving under screws
Fastenings of LF dynamics), the back wall is strengthened vertically
To it рейками. And Internal walls are covered warmed линолиумом
(except tunnels and
Input in them), линолиумом to boards.
Between a forward and back wall установленна a rejka-coupler.
in side connections are executed with use реек section
20х20мм from Firm breeds of a tree.
To collect better in a following order:
In the beginning to collect from external boards a frame, then
рейки for installation of a back wall (on all длинну lateral walls, and
Width of top-bottom, on distance 16мм from edge of the back party the
After to lateral walls from within to fasten bruski-support
to Attach to the vertical party (one) each boards-walls
Tunnel рейку, it is equal on board edge, and on short рейке not top and
This board (what to top and and a box bottom зафисирывать it).
Further to брускам (as from within) the internal are
Boards (tunnel wall), maintaining distance from their edge to переда
16мм to fasten narrow edges to top and a box bottom, then to fasten
рейки on top and a box bottom, as on distance 16мм from
Forward part the AS.
Now it is possible to establish the forward panel (to watch what
Exactly) and to fasten from within to рейкам below, above and рейкам on
All joints a rejka-board at first to spill glue ПВА (it is
Tubes), after drying they be to miss the mark places where it is
Small изгиб - plasticine, or other elastic hermetic.
While glue dries - in a back wall we drill holes, on distance
10мм from edge, with step ~63мм at lateral edges,
And 57мм - the top-bottom, under screws-samorezy, all turns out 11 on
To vertical edge and on 9 on a bottom and top
It is possible now оббить (glue and carnations) линолиумом
Walls (and back) to establish on the forward panel a rejku-coupler (it
It 316мм), and LF динамик.
On the back party of all реек to which will be pressing back
The board to apply a thin film plasticine, or other non-drying hermetic
Now to solder a wire to dynamics, mounting it to to
To rejke-extension and to solder to the terminal that is established on
a back wall.
we Put a back wall into place and at first on corners,
To circle, we press it to рейкам screws-samorezami
HF the section is simple also special attention does not
The basic cable - under закрутку
is connected to the terminal by "bananas", and
The Sound rather strong, beag'gest, very much differs from
"standart - house" the AS.
Well various music on style - Malinin, Pink Floyd, Black Sabbath, Oscar
Benton, Simon and Garfunkel, etc.
the Literature (it is detailed about this type of registration):
Places where accessories undertook: