FOCUSRITE PLATINUM OCTOPRE 8CHANNEL MIC.PREAMP

PLATINUM OCTOPRE
 
Providing eight pristine discrete channels of Focusrite Class A mic pre and compression,
OctoPre routes directly to any digital audio workstation via eight standard analogue outputs,
or via a choice of two optional 24-bit, 96kHz A/D converters (see below for details). The new
OctoPre offers the unique qualities associated with the Focusrite name at an affordable price.
Each channel features a revolutionary compressor/limiter circuit, providing a warm-sounding
compressor, which morphs into a brick wall limiter to avoid those critical overs, ensuring total
control over all eight channels.
The mic pres featured in OctoPre are the same as those featured elsewhere in the award
winning Focusrite Platinum range. They are a transistor-based Class A design utilising the
same full-bandwidth philosophy as the legendary Red and ISA mic pres, ensuring detail and
clarity without colouration. The first two 'super channels' also feature phase reverse, as well
as TRS jack inputs on the front fascia for quick and easy, DI-free instrument plug-in.
Eight line level balanced (+4 dBu) analogue inputs and outputs are provided as standard via
25-pin D-type connectors. These D-type connectors may be routed to 8 XLRs by means of
an 8-way 25-pin D-type to 8 XLR breakout cable, available separately. In addition to the analogue
outputs, the OctoPre can be fitted with one of the following two digital output options:

24-bit/96 kHz ADAT? interface card
This card provides digital outputs for all eight OctoPre channels, which operate over the full
sample frequency range (44.1, 48, 88.2 and 96 kHz) and can be dithered to 16-, 20-, or 24-bit
depths depending upon the destination. External word clock synchronisation is possible
using the rear panel BNC connector. The card features two ADAT?-type lightpipe output
connectors. For speeds up to 48KHz both connectors transmit all 8 channels simultaneously.
However, ADAT?-type connectors are bandwidth limited at sample rates above 48 kHz - each
audio channel uses two ADAT? digital channels to accommodate the increased quantity of data,
hence the need for two ADAT? connectors to allow 8 channels of conversion at high speed.

24-bit/96 kHz AES/SPDIF/ADAT? interface card
This card contains exactly the same ADAT?-type digital output facilities as described above,
with the addition of AES and SPDIF format outputs via a 9-pin D-type connector on the rear
panel. As with the ADAT?-type outputs, the full range of sample rates and bit depths are
available, and the converter may be synchronised to an external word clock source if required.
To access the digital signals from the 9-pin D-type AES/SPDIF output connector the A/D card
must be purchased with either an AES or SPDIF D-Type conversion cable, available separately.
Either 8 AES or 8 SPDIF outputs can be used simultaneously with 8 ADAT? outputs and the
OctoPre?s analogue outputs.
With Class A Focusrite processing and almost all the interface options known to man, the
Platinum Octopre is the perfect partner for any Pro Tools system or any other digital audio
workstation, making high quality, multi-channel recording easy. Equally it could be utilised
as an instant location recording solution, or as an additional set of mic pres for any analogue
or digital console, or hard disk recorder.

Please note: The power supply featured in OctoPre is not a switching power supply. Consequently,
120v OctoPres are not suitable for use in 220-240v territories, and vice versa.

Specifications

Inputs
    * Electronically balanced 20kW
    * Nominal level +4dBu / -10dBV
Input Connectors
    * 1/4? jack (channels one and two only)
    * 25 pin D-type 8 channel line level analogue connector
    * 8 XLR inputs for Mic
Front Panel Controls
    * Phantom Power: On/Off: +48V
    * Gain (mic): 0dB to 60dB
    * Gain (line): -10dB to +10 dB
    * Gain (instrument): 0dB to 60dB (Impedance > 1MOhm)
    * Phase Reverse: On/Off (Channel 1 & 2 only)
    * High Pass filter: On/Off: -12dB / octave. ?6dB at 75Hz
    * Dynamics: Limiter threshold is fixed at 20dBu. Compressor
       threshold and ratio is variable
    * Frequency select: Switchable (44.1, 48, 88.2, 96kHz)
    * Dither: 24-, 20- or 16-bit
Metering
    * Signal Present: -20dBFS (green LED)
    * Overload: +22dBu (red LED)
    * Compressor mode: Yellow LED intensity increases with compression
    * Hard Limit mode: Red LED on when limiting (threshold = +20dBu)
Analogue Output
    * 25-pin D-type 8 channel analogue connector
Performance specifications
    * THD: 0.001% @ 20dBu input, mic and line at 0dB gain
    * Noise: -96dB at unity gain through the unit
    * Mic EIN: -128 dBu @ 6dB of gain with 150Ohm termination impedance
    * Frequency response: -1dB at 10Hz to 200kHz
Dimensions
    * 480mm (w) x 44mm (H) x 265mm (D)
Weight
    * 3.2kg 

The PRE-73 Mk2 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 Mk2 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 Mk2 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.

The Mk2 update consists of:
- 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.
- 600 Ohm termination resistor and jumper added to power supply board (accessible from the inside of the unit).
- Revised Gain switch, turning the know clockwise now increase the gain.
- Reduced noise at high gains by a change to the power supply grounding scheme.

The CPR12 is an easy to use, flexible and multifunctional 10 channel pre-amplifier. Six of these input channels are selectable between Mic / Line level and equipped with a 3 band tone control. The first two can be switched to priority and phantom power. The other four channels are direct line inputs.

Every input channel has its own gain and fader volume control with PFL button which makes it possible to pre-listen each input or output channel with the built-in pre-listening speaker, and can be routed to one or both output channels. This makes the CPR12 a full two-zone system.

Other present features are a priority input, a recording output, separate sub-out channels and the 24 V DC emergency power connection. This last feature makes it possible to power the CPR12 with emergency power when the main power is shut down. In this case, the priority input will automatically mute all input signals, and a evacuation message will be announced. The steel 19" housing has a height of 2 HE.

• 10 audio input sources
• 6 Mic / Line inputs with 3 band EQ
• 4 Direct Line Inputs
• Fader volume control
• Two output zones
• Built-in pre-listening speaker
• Priority input for emergency situations
• + 15 V DC Phantom power
• Works on 24 V DC emergency power
  

• Model Name / Type: CPR12 / 10 channel 2 zone pre-amplifier
• THD+N:
• Signal/Noise: > 90 dB
• Frequency Response: 20 Hz - 20 kHz
• Phantom Power: + 15 V DC
• Emergency Power: + 24 V DC
  
• Power Supply: 100 - 240 V AC / 50 - 60 Hz
• Dimensions (W x H x D): 420 x 88 x 320 mm

At PreSonus, weʼve been designing preamps for a long time, and we always focus on audio quality first. So when we decided to upgrade our popular TubePre V2, we focused on improving an already high-quality sound—without jacking up the price. Like the originalTubePre, the new version is a fully professional tube preamp, with a dual-servo (no capacitors) gain stage that lets you boost the program signal to smoking hot levels without significantly increasing the background noise. Discrete components and high-voltage operation offer dynamic range and detail not found in other single-channel tube preamps in its class.

Housed in a rugged case, the TubePre V2 rear panel sports separate unbalanced, ¼” instrument and balanced, XLR mic inputs and unbalanced ¼” and balanced XLR line outputs. Weʼve included all of the extras you need for professional operation including a high-pass filter, phantom power for condenser mics, polarity reverse switch, and a backlit VU meter.

Features
Superlative sound
Studio quality mic preamp
Total control - Input Gain, EQ contour, Output Gain,
Overload indicator
Multiple output connectors
XLR/jack combo input 
Switchable 48 V DC Phantom Power for condenser Mics
Compact, computer friendly package
Needs no external power supply
 
ARX is proud to introduce the e-pre - the ultimate microphone pre-amp for
hard disk recording, designed by audio professionals, not computer engineers.
The all-new e-pre is so much a part of your system that it fits right into a spare
5?" slot in your computer case! It's the perfect tool for all your day-to-day
recording requirements. No equipment racks to plug in, no masses of cabling to
connect - the e-pre is ready and waiting when you need it.
The e-pre is a studio quality microphone pre-amp using the same internal components
as high end mixing consoles, built into a compact, computer friendly package.
It has controls for:
Input Gain - fully variable from 10dB through to 60dB to suit all types of microphones,
plus switchable 48 V Phantom Power to enable condenser microphones to deliver
their best.
A Contour control for EQ sweetening, providing fast, easy access to a whole range
of useful EQ curves
Output level control - fully variable to match the e-pre's output to the input of the sound
card. From -10dB consumer cards through to +4dB for professional sound cards, the
e-pre can handle it.
Multiple output connectors match up with any kind of sound card, including mini jacks,
standard jack, RCA (phono) plugs, and even a connector to link to the internal CD ROM
audio input of your sound card (if fitted).
We've even fitted a 12 VDC input connector on the rear to enable the e-pre to run from an
external power supply if required (eg for use with notebook computers or stand-alone use).

Any way you look at it, the e-pre by ARX is the total professional microphone pre-amp for
all your hard disk recording needs

e-pre Benefits
Professional Balanced XLR mic input
True 48v phantom power
Runs into the Line input of ANY sound card - uses the card you've already paid for
High headroom = clean recordings
Smart EQ
Compatible with non-computer audio equipment
Professional performance and specs in a user friendly package
 

T E C H N I C A L  S P E C I F I C A T I O N S
Input Impedance
Mic 2 K Ohms Balanced; XLR type Pin 1 Audio Ground, Pin 2 +, Pin 3-
Line 25 K Ohms Balanced, ?" TRS jack Tip +, Ring , Sleeve Audio Ground
Phantom Power Voltage Switchable +48 V DC on XLR Pins 2 and 3
Max Input Level Mic +15 dB, Line +20 dB
Input Gain 10 dB Minimum, variable to 60 dB Maximum
Output Level -10 dB variable through 0 dB to +4 dB
Overload Indicator Measured at all Gain points throughout the circuitry
Output Noise -90 dB Unweighted, -97 dB 'A' weighted
(Measured with Gain nominal 20 dB, Output level -10 dB)
Frequency Response 20 - 20 KHz ± 0.25 dB
Distortion
100 Hz 0.0085%
1 KHz 0.008%
10 KHz 0.0083%
(Measured with Mic Gain 20 dB, Output 0 dB)
Power Requirements 12 V DC from either computer supply or external supply
(external power supply not included in e-pre package)
Size 148mmW x 42mmH x 150mm D (5?“W x 1?H x 6“D)
Weight Under 1 Kilo (2.2 lbs)