Comparative Chart

Grado "e series" HEADPHONES SPECIFICATIONS

PS 1000e

PS500e

GS 1000e

RS1e

RS2e

Transducer type

dynamic

dynamic

dynamic

dynamic

dynamic

Principle of operation

open

open

open

open

open

Frequency response (Hz)

8/35k

14/29k

10/35k

12/30k

14/28k

Sound pressure (db) 1mV

98

98

98

98

98

Nominal impedance (Ohms)

32

32

32

32

32

Transducers tolerance (db)

0.5

0.5

0.5

0.5

0.5

Device weight (g)

500

300

320

310

260

Conductors in cable

8

8

8

8

8

Jack

1/4

3.5mm

1/4

3.5mm

3.5mm

Adaptor: 3.5mm to1/4''

No

Metal

No

Metal

Metal

Cable length (m)

1.8

1.8

1.8

1.8

1.8

Acoustic chamber

Alloy

Alloy

Mahogany

Mahogany

Mahogany

Sleeve

Mahogany

Mahogany

None

None

None

Voice coil material

UHPLC

UHPLC

UHPLC

UHPLC

UHPLC

Cable material

UHPLC

UHPLC

UHPLC

UHPLC

UHPLC

SR325e

SR225e

SR125e

SR80e

SR60e

Transducer type

dynamic

dynamic

dynamic

dynamic

dynamic

Principle of operation

open

open

open

open

open

Frequency response (Hz)

18/24k

20/22k

20/20k

20/20k

20/20k

Sound pressure (db) 1mV

98

98

98

98

98

Nominal impedance (Ohms)

32

32

32

32

32

Transducers tolerance (db)

0.5

0.5

0.5

1

1

Device weight (g)

340

280

225

225

225

Numbers of conductors in cable

8

8

8

4

4

Jack

3.5mm

3.5mm

3.5mm

3.5mm

3.5mm

Adaptor: 3.5mm to 1/4''

Metal

Metal

Metal

Metal

Metal

Cable length (m)

1.8

1,8

1.8

2.1

2.1

Acoustic chamber

Aluminium

Plastic

Plastic

Plastic

Plastic

Voice coil material

UHPLC

UHPLC

UHPLC

Standard copper

Standard copper

Cable material

UHPLC

Standard copper

Standard copper

Standard copper

Standard copper

iGrado

GR10

GR8

iGi

 
Transducer type

dynamic

moving armature

moving
armature

moving
armature

Principle of operation

open

in ear

in ear

in ear

Frequency response (Hz)

20-20k

20-20k

20-20k

20-20k

Sound pressure (db) 1mV

100

116

118

105

Nominal impedance (Ohms)

32

32

120

24

Transducers tolerance (db)

1

na

na

na

Device weight (g)

90

9

9

8

Numbers of conductors in cable

4

4

4

4

Cable length (m)

1

1.3

1.3

1.3

Material of acoustic chamber

plastic

Black plastic

Black plastic

Black plastic

Voice coil material

Standard copper

na

na

na

Cable material

Standard copper

Oxygen free copper

Oxygen free copper

Oxygen free copper