HA75 'TUBE HEAD' HEADPHONE AMP
Hafler
1. on:
Activates the HA75. It is recommended to warm up the tube for
15 minutes to achieve thermal stability.
2. SeLeCT:
From the front panel you can select between two different
inputs designated as A (balanced/unbalanced) and B (unbalanced).
3. FeedbACK:
Controls the amount of negative feedback that is
being introduced back into the circuit.
4. GAIn:
Used to adjust the volume for headphones.
5. FoCuS:
Active matrix lets you control the width of the stereo image
to replicate listening to loudspeakers in a room.
6. VoX:
Three position switch lets you enhance low
frequencies to suit the listening level and program material.
7. HeAdPHone ouTPuTS:
Dual ¼” TRS outputs to enjoy the
listening experience with a friend or client. For best results use two
matched headphones as the impedance determines the loudness.
2
FeATuReS
2
3
4
5
6
7
1
VOX Switch
A - Bass enhancer
Ø - Bypass / Off
B - Loudness
