| Input: |
|
|
Balanced,
using “Transformer-Like-Amplifier” (T.L.A.) with toroidal Common Mode
Rejection Low Pass Filter that excludes frequencies above 150 kHz.
|
The
T.L.A. is followed by an actual input transformer permitting a full +26
dBu input signal to be handled at unity gain without an input pad over
the whole audio spectrum.
|
Combines the advantages of both an “Electronically Balanced” and true Transformer input.
|
When the Phantom voltage is disabled, this input serves as a very high quality Line Input.
|
|
|
|
| Input Impedance: |
10,000 Ohms + or 20% |
|
|
|
|
| Noise: |
|
|
Measured at Main Output:
|
Input terminated with 150 Ohms. |
Measured over band limited 22Hz-22kHz, Unweighted:
|
With Gain at Unity: |
Better than 100 dBu. |
|
With Gain at 66 dB: |
Better than 62 dBu |
|
Equivalent Input Noise (E.I.N.) |
Better than 128 dBu |
| Frequency Response: |
|
|
Main Output, no load:
|
@ 10 Hz, |
0.2 dB |
|
@ 160 kHz |
3 dB |
| Buss Output |
|
| @ 10 Hz |
0.2 dB |
|
@ 160 kHz |
3 dB |
| High Pass Filter: |
|
|
Swept Frequency continuously variable from 20 Hz to 250 Hz.
|
Slope: |
12 dB/Octave. |
|
|
|
| Gain: |
|
|
Switched Gain from Unity to +66dB in 6 dB steps.
|
|
|
|
|
|
| Trim: |
|
|
Continuously adjustable potentiometer from 6dB to +6dB with reference to setting on the Gain Switch.
|
|
|
|
| Maximum Output Level: |
|
|
Balanced and Floating Transformer Output from 20 Hz to 40 kHz: +25 dBu. (Clips at just over +26 dBu)
|
|
|
|
| Mute: |
|
|
Mutes Main Output only. (i.e. Monitor remains Live)
|
|
|
|
|
| Total Harmonic Distortion and Noise: |
|
|
Main Output
|
@ 1kHz, +20 dBu output
level, no load: |
Better than 0.001%.
(No high order Harmonics) |
Silk Engaged:
|
Approximately 0.2% Second Harmonic |
Main Output |
@ 20Hz, +20 dBu output
level, no load: |
Better than 0.01%. |
Buss Output
|
@ 1kHz, +20 dBu output
level, no load, measured at the output: |
Better than 0.002%. |
| SILK: |
|
|
The 5012 uses mainly single-sided amplifier circuitry that excludes any possibility of crossover distortion. The “SILK” button reduces negative feedback and adjusts the frequency spectrum to provide a very sweet and musical performance.
|
|
|
|
| Buss Output: |
|
|
The Buss Output is designed to feed other Portico
Series modules with Buss Inputs.
|
|
|
|
| Crosstalk: |
|
|
Measured Channel to Channel:
|
Better than 90 dB @ 15kHz. |
|
|
|
|
| Phantom Power: |
+48 Volts DC +/- 1% |
|
|
|
|
| Main Power Required: (From External Power Unit) |
Voltage Range, |
9 to 18 Volts DC. |
|
|
|
| Current consumption: |
@ 9VDC = 1.3 A typical |
|
|
@12VDC = 1A typical |
|
|
@15VDC= 800 mA typical |
|
|
@18VDC= 650 mA typical |
|
|
|
|
| Rear Panel Power Connector: |
5.5mm X 2.1mm DC jack, Center Positive |
