6 Specifications

If you're listening through headphones, is the Porta02's 

MONO

switch pressed?

The PAN controls don't work

If you're listening through speakers, is there a 

MONO

 switch on 

the amplifier which has been pressed?

When monitoring while recording, the sound will often be a little 

different to when it is played back. A large amount of distortion 

may be caused by recording at too high a level (shown by the meter

Recorded sound is distorted 

+6

 indicator being lit all or most of the time). Adjust the 

TRIM

when recording

level and/or back off on the faders.

If the meter 

+6

 indicator is not constantly lit, you may want to 

reduce the headphone level; you may be driving the headphones 

too hard.

Either the sound was recorded at too high a level, or the summed 

level of all four tracks is too high. Try reducing the level of all 

Recorded sound distorts on 

tracks so that the meter 

+6

 indicator is not constantly lit on play 

playback.

back (set 

REC FUNCTION

 to 

SAFE

). If one track only is dis 

torted, it was recorded at too high a level.

Tape sounds muffled on play 

The heads are dirty. Clean them (see 1.2.4,  Cleaning the heads )

back

The capstan and pinch roller are dirty. Clean the capstan and pinch 

Pitch changes (wow and flutter)

roller (see 1.2.5,  Cleaning the pinch roller ).

You're probably listening to tracks 1 and 2 forwards at the same 

A stereo tape recorded on 

time as 3 and 4 backwards. Turn down the 

OUTPUT LEVEL

 con 

another machine sounds really 

trols of tracks 3 and 4.

strange!

If the sound is unnaturally  bright , it's quite likely that the tape 

was recorded on the other machine using noise reduction.

6   Specifications

Recommended tape type

Compact cassette tape, CrO

2

 (Type II, 70

s EQ), C 30 to 

C 90

Track format

4 tracks, 4 channels

Head configuration

1 x 4 track record/replay head (Permaloy)

1 x 4 track erase head (ferrite)

Motor type

1 x DC motor (capstan and reel motor)

Tape speed

1 7/8 in./sec (4.76 cm/sec)

Wow and flutter

0.18%

Fast wind speed

Approx 120 seconds (C 60 tape)

Power requirements

USA/CANADA:

120V AC, 60Hz

U.K./EUROPE:

 230V 

AC, 

50Hz

AUSTRALIA:

 240V 

AC, 

50Hz

Power consumption

7W, via the supplied PS P2 AC adaptor

Physical dimensions (w x h x d)

305 x 64 x 205 (mm), 12.0 x 2.5 x 8.1 (in.), maximum 

height (including controls) 80 (mm), 3.1(in)

Weight (main unit)

1.5kg (3.3lb)

MIC/LINE inputs (2 x 1/4" jacks)

Input level

 50dBV, 

TRIM

 at maximum;  10dBV, 

TRIM

 at minimum

Input impedance

50k

23