OddBits audio cassette 4-track test tape.
 
Ideal for function, stereo check, fidelity check and level adjustment.
Tape bias 120µS (high bias)
Tape speed 3 3/4 ips (double domestic tape speed)
Recorded with DBX bias.
See the photo for the included tests.
Recorded on a professionally calibrated recorder.
Please note this is not a domestic stereo tape sometimes refered to as 4 track (2 tracks in both directions) but is 4 tracks recorded in one direction for true 4 track cassette machines such as Tascam 244 etc.
Free Postage.