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Golden Age PRE-73 DLX
1073 Style Microphone Preamp with High Pass Filter, Deluxe Version, Stock or Mod
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Real Price...............
$499.99
Status: Usually Ships Same or Next Business Day Availability: Ships now from ZenPro! |
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Golden Age PRE-73 DLX Description
Choose stock or our full ZenPro Mod!
Our Full ZenPro Mod Includes:
- Output transistor replaced with Motorola 2N3055
- Mic input & line output transformers replaced with British Carnhill
Pre-73 Microphone Pre Amplifier Deluxe with High Pass Filter
The
PRE-73 is the first one-channel low-cost preamp on the market that is
using a fully discrete signal path with three separate transformers for
the balanced mic input, the line input and the output. The circuit is
very similar to the classical preamp section of the Neve 1073 pre/eq
module with a corresponding sound character that is warm, punchy, sweet
and musical. This classical sound has been heard on countless recordings
through the years and it is a versatile sound that works very well on
most sound sources and in most genres.
The PRE-73 has a maximum gain of 80 dB on the mic input and the gain
range on the Line input is -20 to + 10 dB. There is also a
high-impedance instrument input. The PRE-73 is perfect for almost any
signal source, no matter if it’s a microphone with a high or low
sensitivity (like a passive ribbon mic), a syntheziser or sound module
or an electric guitar or bass. The input impedance of the microphone
input can be switched between 300 and 1200 ohms, which makes it possible
to affect the tone of most microphones. There is also phase switch and
an simple 4-step LED signal level meter. The output level control makes
it possible to make fine gain adjustments and also to overload the main
gain stage for more character and then lower the signal to a suitable
level before the output stage.
An unbalanced insert jack (nominal level about -18 dBu) added on the
back panel for inserting units like the coming GAP EQ-73, a three band
eq.
LED meter levels adjusted.
PRE73 DLX Features:
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Tantalum capacitors in the signal path.
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Selectable 1073-style high pass filter, 50Hz, 80Hz, 160Hz and 300Hz.
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Output Attenuator -7, -14, -21 and -28 dB (located after the output transformer) allows overdriving the output stage and the output transformer for added character by lowering the output signal to a suitable level.
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The circuit board is prepared for Carnhill Mic and Line transformer and high pass inductor (our mod is us installing Carnhill mic in / line out transformers)
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The Insert jack can be switched in/out from the front panel: an internal jumper can select that the Insert jack always has an output signal
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Selectable Active or passive DI input and selectable input impedance in active mode, Hi Z or 100 kohm, by internal jumpers.
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The DI signal can be selected to pass or bypass the mic input transformer by internal jumpers.
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Relays are used to control internal switching for DI input, Phantom power, Mic Low Z, Insert and Phase for shorter circuit board signal paths. The relays are controlled by front panel switches.
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Revised gain switch for added headroom.
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Circuit board star grounding scheme.
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Revised power supply with separate regulators for the audio circuits and relay and LED circuits.
*Note: These units are not set up as "plug and play" for Carnhill transformers to be easily installed. If you plan on doing your own mod, just know that it is a complete disassembly and reassembly and uses a special version of the Carnhill transformers which is different from the PRE73 MK2 units.
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