Peerless_HDS134_850528.pdf

850528

WOOFER/MID 5" MAGNETICALLY SHIELDED

WOOFER/MID 5" MAGNETICALLY SHIELDED - 134 WR 26 81 SD AL TV

A truly high end mid-woofer with a rigid aerodynamic cast aluminium basket, ventilated spider and shielded for use

next to TVs and computer monitors.. All aspects of this drivers design and manufacture achieves superior engineering

with the lowest possible compression, maximum exertion of the cone, excellent ventilation, etc. Attractive modern

style. Inverted dust cap. Suitable for higher power, high SPL, maintaining excellent dynamics and efficiency at any

volume. The one piece cast aluminium basket provides the necessary sturdy base for the magnet structure and

suspension and allows for a long excursion of the cone. The spider is ventilated to the basket, this achieves the lowest

possible compression and to allow air to flow freely to create a cooling effect for the voice coil and therefor greatly

extend the long term power tolerance. The design of the basket fascia allows for very slim box designs and the edges

are cambered to reduce the necessary amount of counter sinking. Hex screw holes. The three or five layer sandwich

cone improves accuracy and consistency of sound reproduction over the entire frequency range, creating a more

"musical" driver. Due to the soft suspension, an excellent dynamic small signal reproduction is obtained. Other features

are high sensitivity, gold plated terminals and very low harmonic and difference tone distortion. This woofer is

applicable on a wide range of applications, and is especially ideal for very compact 2-way bookshelf boxes (as small as

5L ported), for satellite systems as mains (Closed box 3L - 6L suggested) or as surround sound units. Also popular as

multiple alignment floorstanding boxes, MTM centres, etc., Multiple driver boxes make this highly sensitive unit even

more efficient. Peerless recommend that this highly dampened speaker is best suited to ported designs tuned to 65Hz in

a 10L box. Upper crossover recommended 1500 to 4500Hz.

Parameters

Free-Air Common Baffled

Nominal impedance

(ohm)

Minimum impedance/at freq. Zmin (ohm/Hz)

6.4/376

Maximum impedance

(ohm)

34.6

DC resistance

(ohm)

5.7

Voice coil inductance

(mH)

1.0

Capacitor in series with 8 ohm

(for impedance compensation) Cc

(µF)

Resonance Frequency

(Hz)

61.1

59.9

Mechanical Q factor

Qms

2.07

2.11

Electrical Q factor

Qes

0.41

0.42

Total Q factor

Qts

0.34

0.35

F (Ratio fs/Qts)

(Hz)

172

Mechanical resistance

Rms

(Kg/s)

1.89

Moving mass

Mms

(g)

10.2

10.6

Suspension compliance

Cms

(mm/N)

0.67

Effective cone diameter

(cm)

10.8

Effective piston area

(cm²)

Equivalent volume

VAS

(ltrs)

7.6

Force factor

(N/A)

7.4

Reference voltage sensitivity

Re 2.83V 1m at 376 Hz (Measured)

(dB)

89.2

Voice coil diameter

(mm)

Voice coil length

(mm)

Voice coil layers

Flux density in gap

(T)

1.24

Total useful flux

(mWb)

0.83

Height of the gap

(mm)

Diameter of magnet

(mm)

Height of magnet

(mm)

Weight of magnet

(kg)

0.4

Code

850488

Page 1/2

850528

WOOFER/MID 5" MAGNETICALLY SHIELDED

Peerless Recommend: "F(ratio) for this driver is and this indicates that the damping is high.

The best way to use this driver is in a vented box with the following suggested box sizes.

10 ltr box. 1 port. Diameter 40 mm. Lenght 65 mm. Tuning freq 62 Hz. Response, - 3 dB appr at 60 Hz.

10 ltr box. 1 port. Diameter 55 mm. Lenght 140mm. Tuning freq 62 Hz. Response, - 3 dB appr at 60 Hz.

5 ltr box. 1 port. Diameter 30 mm. Lenght 50 mm. Tuning freq 78 Hz. Response, - 3 dB appr at 80 Hz.

For small satellites it would be best to use the driver in a closed box. Box sizes from 3-6 ltr will be suitable.

Cross-over freq between 1500-4500 Hz is recommendable for this model. "

149

152mm

70mm

Speaker Infinite Baffle Response Curve

5mmØ

Rear Ventilated

Dustcap & Spider

Hole Cut = 134mm Diam

Projected Box Frequency Response Curves

Page 2/2

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