Presonus Studio 1 Channel Vacuum Tube Channel Strip


RM 2,XXX


We named this channel strip the Studio Channel, and indeed it’s a wonderful studio tool. But it’s great for live performance, too. Featuring tube preamplification, a VCA-based compressor, and three-band EQ, it delivers a huge variety of timbres. Produce luscious, in-your-face vocals, dynamic acoustic piano, and fat, solid bass guitar, not to mention crystal-clear acoustic guitars and cracking snare. Yes, we got the name wrong; we should have called it the Anywhere Channel. But we got the design right.

Features

1 channel with Class A 12AX7 vacuum-tube mic/instrument preamplifier

·   Gain control with +10 dB to +54 dB gain range

·   Tube Drive control

·   48V phantom power switch

·   80 Hz high-pass filter

·   -20 dB pad

·   Polarity-reverse switch

Fully Variable VCA compressor

·   Attack, Release, Ratio, Threshold, and (makeup) Gain

·   Auto Attack/Release switch

·   Soft/Hard Knee switch

·   Bypass switch

3-band parametric equalizer

·   Gain, Frequency, and Q controls (mid band)

·   Gain and Frequency controls (low and high bands)

·   Shelving/peak switches (low and high bands)

·   Switchable pre-/post-compressor

·   Bypass switch

Master level control

·   Backlit VU meter

o Gain Reduction to Meter switch (selects gain reduction or output gain)

Input/Output

·   1 unbalanced ¼” instrument input (front panel)

·   1 balanced ¼” line input

·   1 balanced XLR mic input

·   1 balanced ¼” line output

·   1 balanced XLR line output

Physical

·   1U 19” rack-mountable, rugged steel chassis

·   Sealed, detented, metal rotary controls

·   External 16 VAC power supply

Specification

General

 

Channels

1

Dynamic Range

>115 dB

Frequency Response

10 Hz to 50 kHz

Internal Operating Level

0 dBu = 0 dB

Microphone Preamp

 

Gain

-6 dB to +66 dB (± 10 dB trim on line input)

Noise Floor

-96 dBu

EIN

-126 dB

THD + Noise (0% Tube Drive)

< 0.050%

THD + Noise (100% Tube Drive)

< 0.10%

Microphone Input Connector

XLR

Microphone Input Impedance

1.3 kΩ

Instrument Input Connector

¼” TS

Instrument Input Impedance

1 MΩ

Line Input Connector

¼” TRS

Line Input Impedance

10 kΩ

Phantom Power (switchable)

+48V

Pad (switchable)

0 dB / -20 dB

Phase (switchable)

0°, 180°

High-pass filter (switchable)

-3 dB at 80 Hz

Compressor

 

Threshold (variable)

-40 dBu to +-2 dBu

Ratio (variable)

1-10 (1:1 to 10:1)

Attack (variable)

0.1 to 200 ms

Release (variable)

0.05 ms to 3S

Gain Makeup

-10 dB to +10 dB

Metering

Analog VU (Gain Reduction / Output)

Equalizer

 

LF Band Controls:

 

Frequency

Variable from 40 Hz to 500 kHz

Gain

Variable between ±10 dB

Q

0.7 (on Peak setting)

MF Band Controls:

 

Frequency

Variable from 200 Hz to 3 kHz

Gain

Variable from -10 dB to +10 dB

Q

Variable from 0.7 to 2.5

HF Band Controls:

 

Frequency

Variable from 2 kHz to 20 kHz

Gain

Variable between ±10 dB

Q

0.7 (on Peak setting)

Master

 

Output Fader

-80 dB to +10 dB

Output Connectors

XLR Balanced and ¼” TRS Balanced/Unbalanced

Output Impedance

51Ω

Metering (Output level)

Analog VU (-20 dBu to +6 dBu)

Metering (Gain Reduction)

Analog VU -20 dB to 0 dB

Output Headroom

+22 dBu

Power Supply

 

Type

Linear

Input

16 VAC / 1000 mA

Power Requirements (Continuous)

16W

Transformer

External (country specific)

Physical

 

Dimensions

1U rackmount

Height

1.75” (44.45 mm)

Depth

5.5” (139.7 mm)

Width

19” (482.6 mm)

Weight

5 lbs. (2.27 kg)

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