PRESONUS DIGIMAX-FS Microphone Preamplifier 8 Channels

The DigiMax FS is an eight-channel microphone preamplifier, with 24-bit/96k ADAT dual SMUX I/O and word clock I/O. Loaded with direct outputs and inserts on every channel, the DIGIMAX FS is the perfect hardware expansion for your FireStudio or any digital recording system with optical light pipe expansion capability including DigiDesignʼs HD and 002 systems, RME, YAMAHA, Alesis, Mackie and many others. The DigiMax FS is loaded with new patented JetPLL jitter reduction technology ensuring ultra-high converter performance, fast and robust locking through a wide range and variation of frequencies and noise shaping to remove nearly all audio band jitter. Technical Specifications Microphone Preamp (XLR Balanced)

• Frequency Response (+0,- 0.5dB) : 20Hz to 40KHz
• Frequency Response (+0/-3.0 dB) : 20Hz to 100KHz
• Input Impedance : 1600 Ohm
• THD+N (unwtd, 1KHz @ +4dBu Output, Unity Gain) :
• EIN (unwtd, 55dB Gain, 150 Ohm Input, 20Hz to 22KHz) : -126dBu
• S/N Ratio (Unity Gain, unwtd, Ref. = +4dBu, 20Hz to 22KHz) : >101dB
• Common Mode Rejection Ratio (1KHz, 55dB Gain) : >55dB
• Gain Control Range (+/-1dB) : 0dB to 55dB
• Maximum Input Level (Unity Gain, 1KHz @ 0.5% THD+N) : +11dBu
• Phantom Power (+/- 2VDC) : +48VDC

Instrument Input (1/4” TRS, Preamps 1 & 2)

• Input Impedance : 1 Mega Ohm

Line Inputs (1/4” TRS, Preamps 3 to 8)

• All measurements Line Input to Direct Output
• Frequency Response (+0,- 0.5dB) : 20Hz to 60KHz
• Frequency Response (+0/-3.0 dB) : 20Hz to 150KHz
• Input Impedance (Balanced) : 10 KOhm
• THD+N (unwtd, 1KHz @ +4dBu Output, Unity Gain)
• S/N Ratio (Unity Gain, unwtd, Ref. = +4dBu, 20Hz to 22KHz) : >101dB
• Gain Control Range (+/-1dB) : -12dB to +10dB
• Maximum Input Level (Unity Gain, 1KHz @ 0.5% THD+N) : +22dBu

Direct Outputs/DAC Outputs (1/4” TRS)

• Output Impedance (Impedance Balanced) : 51Ohm

Power

• Input Voltage Range : 18 to 30VDC
• Power Requirements (Continuous) : 15W
• External Switching Power Supply : 90-230VAC/35W

Designed for high-definition field production environments, the studio-quality MP-1 is an ideal line-driver for critical radio, television, and film applications.

The MP-1 is extremely durable and easy to use. With rugged mechanical and electrical construction and high-quality components it will provide years of superb audio performance under the most punishing field conditions.

• Superb audio specifications
• 66 dB of gain, in eleven discrete steps
• Transformer-balanced input and output
• Phantom power - 48 volt or 12 volt
• High pass filter @  80 Hz or 160 Hz, 6 dB/octave
• Limiter makes unit virtually "unclippable“
• High current line output drive
• Excellent immunity to RF interference.
• Battery power (two x AA)
• Durable mechanical construction

The PRE-73 Mk2 pre-amp and the FC3 condenser microphone in one bundle. The bundle also includes Golden Age P1 Pop Filter, Proel RSM180 mic stand and Proel CHL250 5m cable.

The PRE-73 MKIII is a one-channel vintage style microphone-, line- and instrument preamplifier. The signal path uses only discrete components like resistors, capacitors and transistors. The in- and output is transformer balanced, using two different transformers, each one optimized for its purpose. This is the way audio components were built before integrated circuits became available.

The circuit used in the PRE-73 MKIII is similar to the preamp section in the classical 1073 module with a corresponding sound character that is warm, punchy, sweet and musical. These classic characteristics have 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 essence of this sound is now available at a surprisingly low cost, making it available to nearly everyone.

Features  :

• Vintage Style electronics. No intergrated circuits in the signal path.

• Maximum gain in MIC mode is 80 dB, enough to handle passive ribbon mics with quiet sound sources.

• GAIN switch range 20 - 80 dB. GAIN/LINE mode switch, gain is reduced by 30 dB in LINE mode.

• Selectable two position high frequency AIR boost eq, 3 or 6 dB @ 30 kHz.

• Selectable 6 dB/octave two frequency high pass filter at around 40 (HP1) and 170 Hz (HP2).

• Tantalum capacitors in the signal path.

• Switchable impedance in MIC mode, 1200 or 300 Ohms, will change the tone of most mics. The input impedance in LINE mode is 10 kohm.

• Switchable phantom power and absolute phase.

• A high-impedance instrument input for any sound module, electric guitar or bass.

• A simple but effective 4-step LED output level meter.

• The output level control makes it possible to make fine gain adjustments and also to overload the main gain stage(s) for more character and then lower the signal to a suitable level before the output stage.

• Combo XLR/TRS input jack and separate output XLR and TRS jacks for flexible connections.

• Insert jack for inserting EQ´s and other units.

• Selectable 600 ohm output termination.

• The pcb is prepared for the Carnhill input transformer.

• External power supply to avoid interaction with the audio circuits and transformers.

• A solid build quality that will last many years of normal use.

The MKIII has the following new features compared to the MKII:

• Tantalum capacitors in the signal path.

• Selectable two position high frequency AIR boost eq, 3 or 6 dB @ 30 kHz.

• Selectable two frequency high pass filter, 6 dB/octave at 40 or 170Hz.

• The pcb is prepared for the Carnhill input transformer.

• Revised and less complicated GAIN switch with a separate switch for MIC/LINE selection.

• All GAIN settings can also be used in LINE mode .

Two channel classic Focusrite ISA transformer-based preamps Front panel, per channel:

• 1/4" instrument input
• Variable input impedance - Low, ISA 110, Medium, High
• Input selection - Mic, Line, Instrument
• 0 - 30 dB/30 - 60 dB gain switch
• Phantom power switch
• Phase invert switch
• 0 - 60 dB gain in 10 dB steps
• 0 - +20 dB continuously variable trim
• Variable high-pass filter with on/off switch
• Insert point on/off switch
• Eight-LED user-calibrated level meters
• Single power switch

• XLR-F mic inputs
• 1/4" TRS line inputs
• 1/4" TRS Sends
• 1/4" TRS Returns
• XLR-M line output
• Single peak meter calibration dial
• Single IEC power socket