Specifications, frequency response & Thiele/Small Parameters
Recommended enclosure
Dimensions
Baffle hole dimensions
P650K Main Features
FULL RANGE SPEAKER UNIT
110
11
0
Ø60
Ø1
16
4-Ø5 hole
65
4-Ø4.5 hole
Ø55
Ø57.8
0.7 23.3
12
(38.2)
Plus terminal
(#205)
Ø75
Minus terminal
(#110)
Type
Impedance
Lowest resonance freq.
Frequency response
Sound pressure level
Input (Mus.)
m0
Q0
Effective vibration radius
Magnet mass
Gross mass
Baffle hole dimension
Standard enclosure type
Accessories
6.5cm cone shaped full range
8Ω
157Hz
f0 ~ 20kHz
84dB/w(1m)
15W
1.8g
0.99
2.6cm
74g
249g
Ø60 (Ø58) *Refer to the baffle hole dimen-
sion drawings.
Bass reflex type
Wood screw x 4pcs, Washer x 4pcs
P650K
＋
P650-E
PRINTED IN CHINA AUGUST 2014 592561
P650K
Owner’s Manual
Thank you for purchasing P650K.
Read through this manual so that you can correctly use it.
The P650K is a suitable full range speaker driver especially for
first time craft users. A light-weight cone paper and a high-loss
rubber surrounding realize a bright and clear mid-to-high range
and reasonably damped low range reproduction. You can enjoy an
excellent stereo image and sound field achieved by the small-di-
ameter speaker unit.
*
Banana pulp blended light-weight cone paper / High-loss
foamed rubber surrounding
Blending a banana pulp with two wooden pulps holding differ-
ent physicality realizes a sufficient stiffness and high-loss. A
high-loss foamed surrounding with an up-roll shape is
employed.
*
Mechanical 2-way center cap
The same material as the cone paper is employed on the center
cap for improving the sound unification. A mechanical 2-way
structure which directly connects the center cap with the voice
coil bobbin extends a high range sound reproduction further.
The baffle hole should be shaped according to board thickness as
shown in the drawings below. If you solder the cable directly to
the speaker terminal, shape the hole as in the right side drawing
with φ58 hole.
Ø60
Ø58
30
31
Board thickness t9mm or below
Board thickness t9mm or more
Terminal escape cut
For the easy start, we recommend a combination with a P650-E
enclosure kit. The P650-E is designed for the P650K that can
easily achieve the enticing full range speaker system. The
P650-E comes with the speaker terminals, internal wirings and
sound absorbent pre-fitted and acoustically tuned. Please use the
P650-E taking advantage of easy mount.
To enhance the low frequency more than P650-E, we recommend
the use of P1000-E. As the internal volume is larger, you can feel
low frequency more. In this case, since P650K cannot be mounted
directly, prepare the baffle board as shown in the drawing on the
right. The board material is MDF with t9 thickness, the baffle hole
is 60mm diameter. As the screw position is made as φ116, you
can easily replace the speaker driver with P1000K.
Baffle hole dimensions to mount the P1000-E
Board material: MDF t9
Specifications
Frequency response
Size
Overall Diameter
Baffle Hole Diameter
Depth
Voice Coil Diameter
Cast / Stamped
Impedance
Reproduction Freq. Response
Sound Pressure Level
Rated Input
Music Power
Magnet Weight
Net Weight
Equivalent Diaphragm Radius
Effective Cone Diameter
Surface Area of Cone
a
D
Sd
65
65
60
38.2
20
Stamped
8
fs-20
84
5
15
74
249
26
52
0.0021
mm
mm
mm
mm
mm
ohm
kHz
dB/W (m)
W
W
g
g
mm
mm
m2
2.6
2.6
2.4
1.5
0.8
0.163
0.549
in
in
in
in
in
lb
lb
Nominal Impedance
Resonance Frequency
DC Resistance
Coil Inductance
Mechanical Q
Electromagnetic Q
Total Q
Equivalent Mass
BL Product (Factor Force)
Compliance Equivalent Volume
Voice Coil Overhang
Reference Efficiency n0
Mechanical Compliance of
Suspension
Efficiency Bandwidth Product
Zn
Fs
Re
Le
Qms
Qes
Qts
Mms
BL
Vas
Xmax
Eff/n0
Cms
EBP
8
157
7.3
0.25
3.39
1.4
0.99
1.8
3.06
0.35
0.5
0.1
0.576
112.143
ohm
Hz
ohm
mH
g
Tesla/m
L
mm
%
m/N
Thiele/Small Parameters
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
WARNING:
NO USER - SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
IMPORTANT SAFETY INSTRUCTIONS
Avertissement:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all Instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with the manufactur-
er’s instructions.
Do not install near any heat sources such as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that produce heat.
Do not defeat the safety purpose of the polarized or grounding type plug. A
polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wide blade or the third
prong are provided for your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.
13.
14.
15.
16.
17.
Unplug this apparatus during lightning storms or when unused for long periods
of time.
Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or
has been dropped.
The apparatus shall be used in an open area.
Apparatus shall not be exposed to dripping or splashing and that no objects filled
with liquids, such as vases, shall be placed on apparatus.
Mains plug is used as disconnect device. It shall remain readily operable and
should not be obstructed during intended use. To completely disconnect the
apparatus from supply mains, the mains plug of the apparatus shall be
disconnected from the mains socket outlet completely.
The lightning flash with arrowhead symbol, within an equilat-eral
triangle, is intended to alert the user to the presence of uninsulated
"dangerous voltage" within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
To reduce the risk of fire or electric shock, do not expose apparatus to
rain or moisture.
Pour réduire le risque d’incendie ou de choc électrique, ne pas exposer
cet appareil sous la pluie et l’humidité.
Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
Only use attachments/accessories specified by the
manufacturer.
Use only with the cart, stand, tripod, bracket, or table
specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/ap-
paratus combination to avoid injury from tip-over.
FOSTEX CO.
1-1-109, Tsutsujigaoka, Akishima City, Tokyo, 196-8550, Japan
P650K
8
40
50
60
70
80
90
100
110
20
100
1k
10k
[Hz]
50
200
500
2k
5k
20k
50k
4
16
32
64
Impedance
8
30
40
50
60
70
80
90
100
110
1k
200
500
100
20
50
[Hz]
10k
2k
5k
20k
50k
64
32
16
4
Impedance
