| Content | At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer – essentially the same circuit, based on the original ISA110, that has been used for 30 years in successive Focusrite designs. The input transformer imparts a special character to the sound that can't be truly emulated in any other way: inseparable from the microphone itself, the transformer input stage is ideal for use with classic microphones. But this mic pre has a twist the original didn't have, which makes it far more versatile: four carefully-selected impedances allow you to match microphone to input in different ways. Bring out the character of a classic mic or emphasise a special feature, or go for a totally transparent, modern sound – it's up to you.Whether you're an artist, engineer or producer, you'll appreciate the versatility of the ISA One, with its front-panel DI input. The DI includes low/high impedance switching and an amplifier output, and its own feed to the optional A/D converter and separate rear-panel XLR output.
ISA series transformer-based preamplifier
Encased in a rugged and portable chassis, ISA One offers the classic Focusrite microphone preamplifier at its lowest cost to date.
Flexible independent DI channel
ISA One is ideal for both engineers and demanding performers alike, featuring independent gain control, an output for routing to an amp, an independent XLR output on the rear and routing to the optional A-D converter.
Switchable impedance
Choose one of four carefully selected input impedances, including the original ISA110 setting, to suit any microphone.
Headphone output with volume control
ISA One can feed either a sum of the two input to the headphones output, or an external stereo cue mix (such as a stereo feed from an interface) via two TRS jack inputs on the rear of the unit.
Dedicated insert point
Allows you to place extra processing between the preamplifier or DI and the optional converter, such as an EQ or compressor.
Optional stereo 192kHz A-D converter
You can chose to upgrade your unit with an optional digital card that delivers the best A-D performance in its class (dynamic range of 118dB). Alternatively, the ISA One Digital comes with the A-D converter as standard.
Lundahl LL1538 Input Transformer
The original mic transformer used in the original Red modules helps to provide the unique sound and performance of this groundbreaking design.
Backlit VU meter with variable calibration
ISA One has a moving coil VU meter with variable calibration to suit analogue and digital recording media, alongside two six-LED peak meters; inputs can be metered either pre- or post-insert.
W x D x H: 8.66" (W) x 4.1" (H) x 10" - 11.4" (D - top to bottom)
Weight: 8.6 lbs | The Suhr Reactive Load delivers a simple solution to capture all of the warmth, and dynamics of your sound, without the hassle of miking a speaker cabinet during a live or recorded performance.
The Reactive Load takes the place of your speaker cabinet in your signal chain. It provides an 8Ω load for your tube amplifier (maximum 100 watts), and produces a balanced and unbalanced signal that interfaces with recording devices, effects, and power amplifiers.
The Suhr Reactive Load is the perfect link between your amplifier and computer audio recording interface. You can use the Reactive Load with your existing library of speaker impulse responses (IR) for the most realistic direct recording experience possible.
Traditional resistive load boxes will safely load your amplifier, but they also alter the tone, dynamics, and response of your amplifier. Real speakers do not have a fixed resistance across the entire frequency spectrum. Real speakers are reactive.
The impedance curve of the Reactive Load has been painstakingly tuned to react like a speaker. Your amp will never know the difference.
The Reactive Load is dedicated to being the absolute best load box possible with zero compromises, and therefore does not include speaker emulation. You can use the Reactive Load with your speaker-sim or impulse response of choice, and benefit from the natural response, dynamics, and touch sensitivity of your amp.
The Suhr Reactive Load features a balanced or unbalanced line level output. The INPUT is optimized for the 8 ohm output of your amplifier and the THRU jack can be connected to a physical speaker cabinet. If a physical cabinet is connected to the THRU jack, the Reactive Load’s internal load is bypassed and the amp will see the load of the physical cabinet.
SPEAKER INPUT IMPEDANCE: 8 Ohm
DI / LINE OUT LEVEL: +4 dBu at 7 watts input, maximum level setting
BALANCED LINE OUTPUT IMPEDANCE: Less than 6KΩ
UNBALANCED LINE OUTPUT IMPEDANCE: Less than 6KΩ
MAXIMUM RECOMMENDED INPUT POWER: 100 Watts RMS
ROHS COMPLIANT: Yes
DIMENSIONS: 8.8" (W) x 8.9" (D) x 3.6" (H)
WEIGHT: 6.6lb
| Proven reverberation classic for the future
With the VSR 3.2, we happily rely on the proven old mechanical way to create reverberation. Rightly, because the used reverberation spring by AccuBell (formerly Accutronics) creates that magic 60's reverb which is slightly metallic and dense at the same time.
Just like it predecessors, VSR 3.2 has a straight-forward and honest approach: signal in - spring reverb - vintage sound out.
VSR 3.2 is equipped with an equalizer that is exactly adapted to the springs' frequency response. In addition, there are controls to mix the dry and effect signal as well as controls for the input and output level. This way, VSR 3.2 simply exactly does what it was designed to do.
Designed for every situation
Although using a large spring (type 9), VSR 3.2 fits in a 19" housing with one rack unit – minimal space requirements. Thanks to its extremely solid chassis, VSR 3.2 is a reliable vintage-effect that cannot only be used in a controlled studio environment. On the contrary, it also serves fine when being used in straining live situations.
VSR 3.2 grants your sound an elegant touch of "good old times". Its simplicity makes it an unbelievable versatile companion.
Inputs
- 1/4"-jack input front
- unbalanced
- max. input sensitivity: –40 dBu
- impedance: 1 MΩ
- 1/4"-jack input rear (1)
- unbalanced
- max. input sensitivity: 0 dBu
- impedance: 100 kΩ
- 1/4"-jack input rear (2)
- unbalanced
- max. input sensitivity: –20 dBu
- impedance: 10 kΩ
Outputs
- 1/4"-jack output (1)
- unbalanced
- max. output level: 0 dBu
- 1/4"-jack output (2)
- unbalanced
- max. output level: - 20 dBu
Signal-to-Noise Ratio
- direct: > 80 dBu
- effect: > 70 dBu
THD + Noise
Miscellaneous
- power supply: external DC-adapter with 12 V/1000 mA
- dimensions: 19“, 1 HE, ca. 190 mm deep
- weight: 2.5 kg
| Originally developed for the dynamics circuit of the acclaimed Shelford Channel, the 535 Diode Bridge Compressor captures the soul of Rupert Neve’s original 2254 compressor while providing modern updates including advanced timing control, significantly lower noise, fully stepped controls throughout, and internal parallel processing capabilities.
What is diode bridge compression?
Where the VCA compressor found in the Master Buss Processor provides unmatched clarity, the weighty, harmonically rich tonality of diode bridge compression can be essential in pushing key sources like vocals, electric guitars, bass and drums to the forefront of a mix.
By understanding the limitations of vintage units like the legendary 2254, painstaking effort was taken to reproduce the unique tone of these classics while improving the noise floor & accuracy, expanding inflexible time constants, adding full wave sidechain detection for improved dynamic response, and widening the range of threshold and ratio controls.
Delivering the powerful sound of these iconic designs with enhanced flexibility for the modern age, the 535 Diode Bridge Compressor is a dynamic tool equipped to make a bold statement on virtually any mix or track.
LINE INPUT TO LINE OUTPUT
- Compressor Bypassed.
- Z source = 40 Ohm Balanced
INPUT IMPEDANCE
10K Ohm
OUTPUT IMPEDANCE
40 Ohm
MAXIMUM INPUT LEVEL
+23.5 dBu
MAXIMUM OUTPUT LEVEL
+23.5 dBu
NOISE
- 22 Hz - 22 kHz BW.
- -101 dBu
FREQUENCY RESPONSE
- 10 Hz - 120 kHz, 30ft Output XLR Cable.
- +/- 0.25 dB
THD+N
- @ 1 kHz @ Maximum Output Level, 22 Hz - 22 kHz BW.
- 0.001%
| FEATURES
- World-class, transformer-coupled preamp, compressor, and DI
- Gain: 0 - 66dB in 6dB increments
- Compressor: Single-knob opto-coupler compressor with 2:1 ratio
- Blend: Determines balance of mic and DI inputs
- Instrument gain: 0 - 30dB on instrument input
- 48V phantom power
- Silk: Adds nostalgic warmth and presence when engaged
- Instrument input: Front-panel TRS input and passive-through for Hi-Z sources
- Polarity reverse
- Threshold: When signals exceed threshold level, gain is reduced at a controlled 2:1 ratio with fixed attack and release time constants
- Indicators: Signal presence and clipping on both mic and DI signals, as well as compressor activation.
TECHNICAL SPECIFICATION
Rupert Neve Designs Portico 517: 500 Series Mic Pre / DI / Comp
- Frequency Response: Main Output, no load, -0.2dB @ 10Hz -3dB @ 160kHz
- Noise measured at main output, unweighted, 22Hz - 22kHz, terminated 150 ohm: Gain at unity: better than -100dBu; gain at 66dB: better than -62dBu Equivalent Input Noise: better than -128dBu, noise factor 1.5dB
- Maximum output level from 20Hz to 40kHz: +23dBu
- Total Harmonic Distortion and Noise: @ 1kHz, +20 dBu output: Main Output: Better than 0.001% @ 20Hz, +20 dBu output: Main Output: Better than 0.002% Silk Engaged: Better than 0.2% Second harmonic
- Crosstalk: Measured channel to channel: Better than -90dB @ 15kHz.
- Phantom Power: +48 Volts DC +/- 1%
| FEATURES
- 12-way precision rotary switch controls gain from 0 to 66 dB in 6 dB steps
- Continuously variable +/-6 dB level control
- Silk circuit, reduces negative feedback, adding harmonic content as needed
- Red Silk accentuates the saturation in the mid and high frequencies
- Same presence and sweetness found in standard Portico Series modules
|
Number of Channels |
Single |
|
Inputs |
1x XLR, balanced |
|
Output |
1x XLR, transformer-balanced |
|
Maximum Output Level |
+23dBu |
|
Meter |
8 segment LED meter |
|
Power Requirements |
Power Requirements @ +/-16VDC 100mA |
|
Dimensions |
Not specified by manufacturer |
|
Box Dimensions (LxWxH) |
10.2 x 7.8 x 2" |
|
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