Download Input: Balanced, using “Transformer-Like

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%.
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SILK:
The 5015 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