The custom RND output transformer in the 5053 features the Silk Red / Blue and Texture controls to precisely tailor the harmonic content and tonality of the output stage. Pushing the Silk button cycles the Silk modes from Red to Blue to OFF. The SILK Texture control adds harmonic content as the texture value is increased. Red Silk accentuates the musical harmonic saturation in the mid and high frequencies, while Blue Silk accentuates harmonics in the low and low-mid frequencies.
By manipulating the Texture control, the amount of Silk can be changed from essentially absent, to roughly 4-5% THD (mostly second order) depending on how hard the output transformer is being driven. This gives 5053 users total control over dialing in a classic, vintage or modern sound.
MIC / LINE
Push-button switch that selects the mic input or the line input.
TRIM
Center-detent potentiometer that controls the input trim within a range of +/- 6 dB.
+48V
Illuminated push-button switch that engages 48V Phantom Power
POLARITY
Illuminated push-button switch that inverts the phase of the input signal
MIC GAIN
12-position rotary switch that controls the mic preamp gain in 6 dB steps
LEVEL METER
8-segment LED meter that displays output level in dBu pre-SILK
HIGH PASS FILTER
Continuously variable potentiometer (engaged with the HPF push-button switch) that controls the cutoff frequency of the high pass filter within a range of 20 Hz to 250 Hz.
HF
Center-detent potentiometer that controls the amount of boost or cut for the high frequency shelf/peak EQ within a range of +/- 15 dB
8k/16k
Push-button switch that toggles between the two HF frequencies, 8k and 16k
HF PEAK
Push-button switch that toggles between shelf mode (out) and peak mode (in)
MID FREQ
6-position rotary switch that selects the center (peak) frequency
MID
Center-detent potentiometer that controls the amount of boost or cut for the mid frequency peak EQ within a range of +/- 15 dB
MID HI Q
Push-button switch that reduces the Q width when pressed in
EQ IN
Illuminated push-button switch that engages the EQ section
LOW FREQ
4-position rotary switch that selects the center (peak) or corner (shelf) frequency
LF
Center-detent potentiometer that controls the amount of boost or cut for the low frequency shelf/peak EQ within a range of +/- 15 dB
LF PEAK
Push-button switch that toggles between shelf mode (out) and peak mode (in)
SILK
Illuminated push-button switch that toggles through the three available SILK modes: OFF, RED & BLUE
TEXTURE
Continuously variable potentiometer that controls the amount of SILK harmonics when SILK is engaged
MIC PRE
Input Impedance
2200 ohms
Frequency response
30dB gain, +4dBu out, 150-ohm source impedance
+/-0.2dB, below 5Hz-50kHz
Noise 22Hz-22kHz
@ unity -101dBu
@ 30 dB gain -94dBu
@ 66dB gain -61dBu
EIN 22Hz-22kHz, unweighted
@ 30dB gain, -124dBu
Maximum input level
+24dBu @ 1kHz
+6dBu, 22Hz-22kHz
THD + Noise, 1kHz @+4dBu out w/30dB Gain:
0.002% typical
LINE INPUT
Input Impedance
10 kohms
Frequency Response
+/- 0.1dB, 16Hz-34kHz
+/-0.5dB, 7Hz-90kHz
Noise 22Hz -22kHz
-102dBu
Maximum input level @ 1kHz
+26.3dBu
THD + Noise, 1kHz @+4dBu
Better than 0.002% typical
EQ
High Frequency:
+/- 15dB, center frequency selectable 8kHz / 16kHz
Selectable peak/shelf modes
Inductor based Mid Frequency:
+/-15dB, center frequency selectable 200Hz, 350Hz, 700Hz, 1.5kHz, 3kHz, 6kHz (+/-10%)
Mid Hi Q selectable option
Low Frequency:
+/- 15dB, center frequency selectable 35Hz, 60Hz, 100Hz, 220Hz
Selectable peak/shelf modes
OUTPUT STAGE SILK MODE
Selectable RED/BLUE Silk modes
Continuously variable Silk Texture control
UNIT DIMENSIONS
1.75” W x 8.75” D x 9.4” H
(4.5 cm W x 22.2 cm D x 23.9 cm H)
UNIT WEIGHT
3.5 lbs. (1.6 kg)
SHIPPING DIMENSIONS
14” W x 14” D x 7” H
(35.6 cm W x 35.6 cm D x 17.8 cm H)
SHIPPING WEIGHT
6 lbs. (2.7 kg)
