Top 10 Presonus Eureka

Product Description

The Studio Channel is great for studio and live use. Its Class A preamp features a high-output 12AX7 tube and Gain and Tube Drive controls. The full-featured, VCA-based compressor includes Auto Attack/Release. The EQ can be pre- or post-compressor and has a fully parametric mid band and semi-parametric high and low bands that can be shelving or peak

From the Manufacturer

The Studio Channel is a professional channel strip combining Class A tube preamplifier, VCA-based compressor and three-band parametric equalizer perfect for the professional and project studio. Great for all types of microphones, instruments, keyboards and synths, the Studio Channel has the sonic power and flexibility to achieve any tone you can dream of – luscious in your face vocals, crystal clear acoustic guitars, fat solid bass guitar, dynamic acoustic piano, cracking snare, punchy bass, huge MPC tracks and more.

Enhance your signal path

The Studio Channel noticeably outperforms preamplifiers that are built-in to most recording interfaces and affordable mixers. Add a VCA-based compressor and studio-grade equalizer to the class A tube preamp and you get not only big fat tube tonality but also complete control of your tone and sounds. Since much of the recording process is accomplished one track at a time, you need a signal path that can deliver a variety of high quality tones and sounds, which is why the Studio Channel is the perfect tool for any studio.

Class A Tube Preamplifier

The Studio Channel has everything needed to deliver big tone. The preamplifier stage of the Studio Channel is based on the award winning BlueTube preamplifier with a high output 12AX7 vacuum tube operating on voltages double than all other preamplifiers in its class delivering high headroom and big tone. Dual control Gain and Tube Drive enables a wide range of sounds from transparent and clear to edgy and overdriven.

Full Featured VCA Compressor

The compressor in the Studio Channel is a fully variable ultra-fast and smooth VCA-based circuit with all of the controls needed for a wide range of compression settings: ratio, threshold, attack, release and gain make up. The VCA-based compressor is known for musicality as well as ultra fast attack with the ability to tame the fastest transients. From slap bass, to snare drum, to vocals, the Studio Channel’s compressor stage allows you to record as hot as needed without clipping giving you total dynamic control.

Three Band Parametric EQ

The equalizer in the Studio Channel is like a Swiss Army pocket knife, with the ability to carve out unwanted frequencies as well as tailor your tone to enhance your sound. The custom-designed amplifiers in the EQ deliver sweet-sounding gain/cut for ultra smooth highs, deep solid lows and clear midrange. The mid-band of the EQ section has variable Q for controlling the width around the center point of the selected frequency. High and low frequency bands give you the option for selecting peak/dip or shelving frequencies.

Channels	One
	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 (+/- 10dB 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 / -20dB
	Phase (switchable)	0°, 180°
	Hi-pass filter (switchable)	-3 dB at 80 Hz
Compressor
	Threshold (variable)	-40 dBu to +2- dBu
	Ratio (variable)	1-10 (1:1 to 2:1)
	Attack (variable)	0.1 to 200 ms
	Release (variable)	0.05 ms to 3 S
	Gain Make Up	-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	51 Ω
	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 / 1000mA
	Power Requirements (Continuous)	16W
	Transformer	External (country specific)
Physical
	Size	1U Rack
	Dimensions	19” x 1.75” x 5.5”
	Weight	5 lbs

Product Description

With eight independent analog compressor/limiters and gates, the two-rackspace ACP88 solves a host of problems. Each channel has a fully variable compressor with sidechain loop, soft/hard-knee compression, and an Auto Attack feature that applies preset attack and release curves. The full-featured gate includes a gate-range switch and a sidechain/key insert loop. Each channel can be bypassed.

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The ACP88 gives you total dynamics control for multi-tracking and live sound reinforcement. Eight compressor/limiters deliver transparent dynamics control. Eight full featured gates seamlessly control unwanted noise and bleed-through. Control vocals, tame drums, protect speakers, tighten the low-end – all from just two rack spaces of powerful processing.

Features

• Eight Full Featured Compressor/Limiters
• Eight Full Featured Gates
• Side Chain on Every Channel
• Trigger Inputs on Every Channel
• Balanced/Unbalanced I/O
• Comprehensive Linking via Unique Power Summing Bus
• Takes the Place of Multiple Processors
• Crystal Clear Compression & Gating for Multi-Tracking & Live Sound
• Allows Spectral Processing & Gate Keying via Separate Jacks
• +4/-10 Stereo Operating Level

Specifications

• Number of Channels: Eight
• Dynamic Range: >115dB
• Signal to Noise Ratio: >95dB
• Headroom:
  +24dBu, Unbalanced
  +18dBu, Balanced
• Frequency Response: 10Hz to 50kHz
• Crosstalk: <82db @10khz="">
• Compression Threshold Range: -40dBu to +20dBu
• Compression Ratio: 1:1 to 20:1
• Compressor Attack Time: 0.02ms to 200 ms
• Compressor Release Time: 0.5ms to 500ms
• Auto Attack and Release: Program Dependent
• Gate Threshold Range: -70dBu to +20dBu
• Gate Attack Time: 0.01ms to 100ms
• Gate Release Time: 0.02ms to 2 sec
• Gate Attenuation Range: -15dB or -60dB
• Input Impedance: 10k Ohms
• Output Impedance: 51 Ohms
• THD + Noise: <0.02%>
• Output Gain: -20dB to +20dB
• Compression Curve Types: Hard and Soft Knee
• Compression Metering: Above/Below Threshold LED
• Gate Metering: Open and Closed LED
• Sidechain Output Impedance: 51 Ohms
• Sidechain Input Impedance: 10k Ohms
• Internal Operation Level: +4dBu=0dBu
• Input Range: +4dBu or -10dBu
• Input Connectors: 1/4″ TRS, Balanced or Unbalanced
• Output Connectors: 1/4″ TRS, Balanced or Unbalanced
• Compressor Sidechain Connector: 1/4″ TRS
• Gate Sidechain Connector: 1/4″ TRS
• Power Supply: Internal, Linear Supply
• Power Requirements: 100V AC to 120V AC or 200V AC to 240V AC
• Power Connection: IEC Receptacle
• Size: 2U Rack
• Dimensions: 19″ x 3.5″ x 7″
• Weight: 12lbs

The ART Pro MPA II two channel microphone preamp is the next generation in affordable high performance microphone preamp technology. Each microphone input circuit, with selectable 48v phantom power, features variable input impedance which can radically vary the overall performance of any high quality dynamic or ribbon microphone. The Pro MPA II can be configured for dual mono or stereo operation with selectable mid/side mic support, summing the adjacent channel, to decode left/right signals. The Pro MPA II can operate at either a low or high plate voltage on the two integrated hand-selected 12AX7 tubes for wider variation of preamp tone and performance. Large back-lit analog VU output meters display input or output levels while multi-colored LED arrays, with average or peak hold, show tube gain. Housed in a standard 2 space rack-mountable steel chassis, with CNC routed black anodized aluminum face panel, the ProMPA II is designed to deliver years of reliable operation in the studio, production facility, or on the road for live sound reinforcement. Features: Variable Input Impedance For Flexible Microphone Voicing (150 Ohms To 2400 Ohms) Selectable Plate Voltage Large VU Meters Backlit Function Switches Discrete Class-A Input Microphone Preamplifier Low Noise at Lower Gain Settings Extremely Low Total Harmonic Distortion (THD) Wide Frequency Response Additional Front Mounted Instrument Input Jack Supports Mid/Side Miking Technique Operates at +4dbm/-10dbv Output Selectable Stereo/Dual Operation of Output Controls Automatic Instrument Input Selection

Enjoy solid-state clarity or tube warmth with the BlueTube DP dual-path mic/instrument preamp, which features both PreSonus’ classic Class A XMAX solid-state mic preamplifier and a high-output,12AX7 tube preamp that operates on voltages double that of other preamps in its class, providing lots of headroom and big tone. A Tube Drive control produces anything from gentle warmth to edgy distortion. With two combo mic/instrument inputs, the half-rackspace BlueTube DP is a great choice for guitars and basses as well as vocals.

The ART VoiceChannel is the answer to your recording and computer audio interface needs. Built to provide the ideal all-in-one input solution for analog or digital recording, the ART VoiceChannel is a true second-generation discrete Class-A microphone preamp capable of providing clean quiet gain while maintaining incredible transparency. An integrated fully variable powerful dynamics processor subtly controls transients and noise of the most demanding sources while the VoiceChannel’s semi-parametric EQ offers wide tune-ability. For added versatility the EQ can be patched before OR after the dynamics processor while separate insertion jacks allow you quick quiet in-line connectivity to external signal processing gear immediately after the Mic preamp, before the EQ and dynamics processor in the signal path. Another insert patch point exists just before the A/D converters. Choose between a wide range of outputs including balanced analog output, 44.1 KHz to 192 KHz AES/EBU, S/PDIF, ADAT and USB. Both analog and digital meters provide a detailed indication of audio levels. ART VoiceChannel Features Ideal input solution for any recording application. Tube Microphone Preamplifier with Selectable plate Voltage and Variable Input Impedance Exceptional warmth and definition from proven ART Tube Preamp design Smooth musical sounding dynamics control including Compressor / Expander / De-Esser / Gate Powerful Parametric EQ selectable Pre or Post Compressor in signal path Flexible digital connectivity including ADAT Lite-pipe / AES/EBU / S/PDIF / TOSLink Digital Output supports 44.1 to 192 KHz Sample Rates USB direct-connect to computer or laptop ART Tube Mic Preamps Pro Dynamic Processors: The Digital MPA Solid Gold. A professional microphone preamplifier is defined by warmth, presence and clarity – core elements that make an audio processor desirable. ART has designed a microphone preamplifier that captures all these elements, with an exceptionally affordable price. The Digita

The Pro Channel from ART is the latest offering from the world’s most popular tube dynamics processing manufacturer. ART engineers have combined the world-renowned Pro MPA, Pro VLA, and Tube EQ into a single product – creating the world’s best-sounding and most affordable professional recording channel. The Pro Channel features many new and exciting design enhancements to ART’s pro and home studio staples, including the addition of a tube circuit to the compressor module. The Pro Channel allows you to select between ART’s award winning optical/tube compressor or the coveted tube circuit (a design made popular by the sound of the old broadcast limiters – now costing thousands of dollars). The tube circuit is fast, fat and a bit aggressive, and is guaranteed to become a legend among compressors as has the Pro VLA. The four-band parametric equalizer has selectable Q for the two sweepable mid-bands. As with all design elements of the Pro Channel, these Q options were fine-tuned by some of the industry’s top studio and live-sound engineers. Likewise, all new additions were made without compromise to the sound of the original designs (Pro MPA, Pro VLA, Tube EQ), which have become standards in professional studios and FOH rigs around the globe. The Pro Channel defines the term “channel strip.” The Pro Channel is an impressive package from the world-wide leaders in tube dynamics signal-processing gear. Pick one up and catch your own tube-buzz at your favorite ART dealer today.

Twist the TubePre V2 Drive saturation control and add the “color” that only a hand-selected 12AX7 vacuum tube can deliver— from gentle warmth to total fuzz. Unlike other compact tube preamps, TubePre V2 starts with the low noise, high headroom Class A XMAX preamp input stage found in our premium interfaces and digital mixers. Discrete components and high-voltage operation deliver best-in-class dynamic range and detail not found in other single-channel tube preamps.

Rockville PPA20 Rack Mount Pre-Amplifier
1U Rack Size
1/4″ microphone input
RCA PHONO / AUX1 / AUX2 / AUX3 / AUX4 / AUX5 inputs
1/4″ headphone output
RCA REC / LINE outputs
XLR master output ( left, right )
Headphone volume & Microphone volume controls
3 band EQ (Treble / Mid / Bass)
Master volume
L / R balance
Input source switch
Mono / Stereo switch
Mute
Low cut crossover control allows you to cut off certain frequencies which comes in handy when using turntables, subs, and other gear. This function will allow you to play your music louder, with lower distortion and make your speakers last longer
Treble / Bass control
Loudness compensation circuit which at low-to-medium volume boosts the bass and treble response
Tape Monitor
Ground lift switch
Unit dimensions: 18.89” x 6.49” x 1.73” inches
Unit weight: 4.43 lbs
Shipping dimensions: 20.47” x 8.46” x 4.33” inches
Shipping weight: 5.73 lbs
110/220 switchable power supply (fuse: 0.2A)

Adding a dbx 266xs Compressor/limiter/gate to your live sound rig or studio gives you more dynamic control to help create a more polished, professional sound. Having compression in your audio chain gives you the ability to smooth out uneven levels, add sustain to guitars and fatten up your drums. It also makes it easy to bring vocals to the front of your mix – adding greater clarity and making them stand out from the surrounding instruments. dbx knows compressors. After all we invented them! The 266xs is the latest in a long line of the world’s most successful compressors from the inventors of the technology. Its patented overEasy compression technology provides smooth and musical performance while the autodynamic attack and release controls, found only on dbx compressors, puts great sound within easy reach. The 266xs can operate in stereo or dual-mono modes, has true RMS power summing and features quality XLR and 1/4″ Trs inputs and outputs. It cuts no corners on visual feedback with gain reduction metering and easy-to-read backlit switches.