TF0818MR

8-inch pressed steel chassis, ferrite magnet midrange driver

Closed back midrange unit

Specifications

200W

Continuous power rating

99dB

Sensitivity

1.75in

Voice coil diameter

Nominal diameter

203mm / 8in

Power rating

100W

Continuous power rating

200W

EIA power rating

150W

Rated impedance

8Ω

Sensitivity

99dB

Frequency range

800-5000Hz

Chassis type

Pressed steel

Magnet type

Ferrite

Magnet weight

0.57kg / 20oz

Voice coil diameter

44mm / 1.75in

Voice coil material

Round copper

Former material

Polyimide

Cone material

Kevlar loaded paper

Surround material

Treated paper

Suspension

Single

Gap height (H_g)

n/a

VC winding height (H_vc)

n/a

Parameters

n/a

453Hz

Mms

n/a

Qms

n/a

Qes

n/a

Qts

n/a

6.63Ω

Vas

n/a

Cms

n/a

Rms

n/a

Le (at 1kHz)

0.31mH

Xmax

n/a

Mounting Information

Overall diameter

208mm / 8.19in

Overall depth

85mm / 3.35in

Cut-out diameter

183mm / 7.2in

Mounting hole dimensions

9.5x5.5mm / 0.37x0.22in

Number of mounting holes

Mounting hole PCD

195-199mm / 7.68-7.83in

Unit weight

1.9kg / 4.2lb

Packed Dimensions & Weight

Single pack size W x D x H

230mm x 230mm x 110mm / 9.1in x 9.1in x 4.3in

Single pack weight

2.5kg / 5.5lb

Multi pack qty

140

Multi pack size W x D x H

1070mm x 850mm x 860mm / 42.1in x 33.5in x 33.9in

Multi pack weight

300kg / 660lb

Frequency Response and Impedance Curves

Topmost curve: Frequency response on axis | Secondary curve: Frequency response at 45° off axis

Power rating: Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.

Continuous power rating: Defined as 3dB greater than the AES rating.

Sensitivity: Measured on axis at 1W, 1m in 2π anechoic environment.