hanzo
New Member
I've picked up an DJ PRE II Preamp and noticed whenever I put the needle on the record at the 'lead in' (before the music starts) the clipping led goes red immediately.
When I turn up the 'gain' (after the music starts), the led will flash green then occasionally red. The led will never be off (no colour) when the needle is on the record.
If I turn the gain to zero, I get solid red.
If I turn the gain fully clockwise, I get solid green.
I even tried changing needles (Ortofon Digital MK2, Shure M44-7) but with the same result.
My setup:
Technics 1200MK2 -- RCA x2 + Ground --> Preamp Line In (DJ PRE II) Preamp Line Out --> Line 1 (DJM-450MK2 Mixer) --> CD (Onkyo Amp).
The goal is to by-pass the mixers (this mixer's preamp is rubbish) Phono Preamp. If I ignore the clipping led and leave the Gain at like +2. The audio sounds ok to my old mans ears.
Ortofon Digital MK2
Output voltage at 1000Hz, 5cm/sec. - 10 mV
Shure M44-7
Output Voltage
Typical at 1 kHz
9.5 mV RMS at 5 cm/sec peak velocity
Are my DJ cartridges output too hot to use this phono pre-amp?
For example the Nagaoka cart M150 is half the output..
When I turn up the 'gain' (after the music starts), the led will flash green then occasionally red. The led will never be off (no colour) when the needle is on the record.
If I turn the gain to zero, I get solid red.
If I turn the gain fully clockwise, I get solid green.
I even tried changing needles (Ortofon Digital MK2, Shure M44-7) but with the same result.
My setup:
Technics 1200MK2 -- RCA x2 + Ground --> Preamp Line In (DJ PRE II) Preamp Line Out --> Line 1 (DJM-450MK2 Mixer) --> CD (Onkyo Amp).
The goal is to by-pass the mixers (this mixer's preamp is rubbish) Phono Preamp. If I ignore the clipping led and leave the Gain at like +2. The audio sounds ok to my old mans ears.
Ortofon Digital MK2
Output voltage at 1000Hz, 5cm/sec. - 10 mV
Shure M44-7
Output Voltage
Typical at 1 kHz
9.5 mV RMS at 5 cm/sec peak velocity
Are my DJ cartridges output too hot to use this phono pre-amp?
For example the Nagaoka cart M150 is half the output..
- Output voltage: 4,5mV bei 1kHz, 5cm/sec.