| Content | In this era of digital audio, more and more musicians, engineers and producers are longing for
the warm, full-bodied sound produced by vacuum tubes. Say hello to the all-new TP-2. In one
rugged and compact unit, the TP-2 combines a dual channel tube preamp, optical compression
and digital outputs ? a total solution for your demanding audio applications.
Two for one!
The TP-2 offers two completely independent preamps, with individual realtime controls. Each channel
is driven by its own 12AX7 tube. A ?Stereo? switch on the front panel allows both preamps to work in
tandem when processing a stereo source.
Full-featured mic preamps
Using a specially tuned version of the Valve Force technology so widely acclaimed in the Electribe X
series and the TRITON Extreme, the new TP-2 tube-driven preamp imparts a robust warmth and a rich
musical character that is ideal for your critical and challenging acoustic sources. Each preamp channel
accepts either XLR or 1/4" TRS inputs, and switchable phantom power is provided. Equipped with a Hi-Z
switch, 26dB pad button and a variable trim knob, the TP-2 assures the optimal gain setting for any source,
from a premium microphone to a direct bass or guitar signal. A pair of faders controls the output level,
and a low-cut switch and a phase reverse button offer even more flexibility.
Transparent optical compression
By using state-of-the-art optical compression, the TP-2 is able to respond quickly, breathing life and luster
into your sound. In addition to enhanced response times, optical compression provides a wide range of
dynamic control ? without coloring the source material in adverse ways. Compression sensitivity knobs on
the front panel are teamed with Fast/Slow release time buttons and audiophile analog VU meters for intuitive
realtime control.
Best of both worlds
While the TP-2 works hard in the analog domain to achieve warm, smooth and musical results, its digital
characteristics are no less stellar. Analog-to-digital conversion is 24-bit, using 64-times oversampling for
error-free reproduction. Sampling rates of 44.1, 48 and 96 kHz are offered, and the digital output is provided
in both S/P DIF optical and coaxial formats. Analog outputs are also provided.
Use it anywhere
While the TP-2 is obviously well suited to enrich your hardware or software based digital recordings, it is
perfect for a variety of applications. Live, the TP-2 can be used to add warmth to any vocal mic or acoustic
instrument. As a mastering tool, the TP-2 provides superior dynamic control. You can even use it as a preamp
when preparing audio samples for your keyboard or computer.
XD series plug-in version
For those of you who are already using Korg?s D32XD or D16XD Digital Recording Studios, the full functionality
and feature set of the TP-2 is available as an optional enhancement for these Xtended Definition recorders in the
TPB-2. The TPB-2 mounts directly into the option bay on the D16XD or D32XD front panel.
SPECIFICATIONS:
Input connector:
XLR-3-31 type (+48 V phantom power, switchable),
1/4 TRS phone jack (balanced, unbalanced when Hi-Z is On)
Input impedance:
4k Ohms (XLR-3-31), 10k Ohms (TRS phone Jack),
1M Ohms (TRS phone Jack Hi-Z)
Input level:
-60dBu ~ -12dBu @ TRIM = max. ~ min., PAD OFF
-34dBu ~ +14dBu @ TRIM = max. ~ min., PAD ON
Max. level:
-48dBu ~ 0dBu @ TRIM = max. ~ min., PAD OFF
-22dBu ~ +12dBu @ TRIM = max. ~ min., PAD ON
in Hi-Z
-48dBu ~ 0dBu @ TRIM = max. ~ min., PAD OFF
-22dBu ~ +12dBu @ TRIM = max. ~ min., PAD ON
Source impedance: 600 ohm
Tube: 12AX7
Method of compression:
Vacuum tube gain reduction using a photocoupler
Frequency response:
10Hz ~ 20kHz ± 1dB @fs44.1kHz, +4dBu, 10k ohm
10Hz ~ 22kHz ± 1dB @fs48kHz, +4dBu, 10k ohm
10Hz ~ 44kHz ± 1dB @fs96kHz, +4dBu, 10k ohm
S/N: TBD
Dynamic range: TBD
A/D conversion: 24 bit, 64 times oversampling
Sampling frequency: 44.1kHz, 48kHz, 96kHz
Analog outputs:
Connector: XLR-3-32 type, 1/4" TRS phone jack (balanced)
Output impedance: 150 ohm
Standard output level: +4dBu
Max. output level: +16dBu
Impedance: over 10k ohm
Digital outputs:
Connector: Optical, Coaxial
Format: 24bit S/P DIF (IEC60958, EIAJ CP-1201)
General:
Dimensions:
8.82" (W) x 6.97" (D) x 3.46" (H)
224 (W) x 177 (D) x 88 (H)mm
Weight: 2.93 lbs. / 1.3 kg
Accessories: AC power supply, Owners? manual |
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
Rear panel, per channel: - 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
Measured Performance | Maximum Input and Output Levels | | Maximum Output Level |
+24 dBu with a THD+N
| | Maximum Microphone Transformer Input Level | +7 dBu with a THD+N | | Mic Input Response | | Gain range | 0 dB to +60 dB in 10 dB steps, plus 0 dB to +20 dB continuously variable trim | |
Input Impedance
| Switched Impedance setting
Equivalent Input Impedance at 1 kHz | Low = 600 Ω
ISA 110 = 1.4 kΩ
Med = 2.4 kΩ
High = 6.8 kΩ | EIN
(Equivalent Input Noise) | Measured at 60 dB of gain with 150 Ω
source impedance and 22 Hz-22 kHz band pass filter | -127 dB | |
Noise
| Noise at output with unity gain (0 dB) and 22 Hz-22 kHz band pass filter | -97 dBu | |
Signal-to-Noise Ratio
| Measured with 150 Ω source impedance and 22 Hz-22 kHz band pass filter | 121 dB relative to max output +24 dBu | |
Total Harmonic Distortion + Noise
| Measured with a -20 dBu input signal at +30 dB of gain and with a 22 Hz-22 kHz band pass filter |
| |
Frequency Response
| At minimum gain (0 dB) |
-0.5 dB at 10 Hz,
-1 dB at 135 kHz, relative to 1 kHz
| |
At +60 dB gain
| -6 dB at 10 Hz,
-1 dB at 115 kHz, relative to 1 kHz | |
CMRR (Common Mode Rejection Ratio)
| -94 dB for mic input at 60 Hz for max. output = +24 dBu
-91 dB for mic input at 10 kHz for max. output = +24 dBu | |
Crosstalk Channel to Channel
| Mic input, with I/P = 0 dBu, gain = 0 dB @ 1 kHz input to channel A, channel B output = -85 dB | | Line Input Response | |
Gain Range
| -20 dB to +10 dB in 10 dB steps, plus 0 dB to +20 dB continuously variable trim | |
Input Impedance
| 10 kΩ from 10 Hz to 200 kHz | |
Noise
| Noise at main output with gain at unity (0 dB) measured with 50 Ω source impedance and a 22Hz - 22 kHz band pass filter |
-97 dBu
| |
Signal-to-Noise Ratio
| Measured with 50 Ω source impedance and a 22 Hz-22 kHz band pass filter |
121 dB relative to max output +24 dBu
| |
Total Harmonic Distortion + Noise
| Measured with a 0 dBu input signal, +10 dB of gain and a 22 Hz-22 kHz band pass filter |
| |
Frequency Response
| At unity gain (0 dB) | -0.3 dB at 10 Hz,
-1 dB at 80 kHz, relative to 1 kHz | |
Crosstalk Channel to Channel
| Line input, with I/P = 0 dBu, gain = 0dB
@ 1 kHz input to channel A |
Channel B output
= -91 dB
| | Instrument Input Response | |
Gain Range
| +10 dB to +40 dB continuously variable trim | |
Input Impedance
| > 2 MΩ | |
Noise
| >Measured with 22 Hz-22 kHz band pass filter | Minimum gain (+10 dB) = -95 dBu | |
Frequency Response
| At minimum gain (+10 dB) |
-0.1 dB at 10 Hz,
-1 dB at 115 kHz, relative to 1 kHz
| |
At maximum gain (+40 dB)
|
-2.5 dB at 10 Hz,
-1 dB at 110 kHz, relative to 1 kHz
| | High-Pass Filter | |
Roll-Off
| 18 dB per octave (3 pole filter) | |
Frequency Range
| Continuously variable from 16 Hz to 420 Hz (-3 dB) | | Weight and Dimensions | |
W x D x H
| 480 mm x 280 mm x 44 mm | |
Weight
| 3.7 kg |
|
The PRE-73 DLX is a one-channel vintage style microphone-, line- and instrument preamplifier. The signal path uses only discrete components like resistors, capacitors and transistors. The line and microphone input and the line output are transformer balanced, using three different transformers, each one optimized for its purpose.
This is the way audio components were built before integrated circuits became available. The subjective sound quality delivered by vintage equipment is often prefered over the one delivered by modern units, a situation that is even more obvious now when music is recorded with clean-sounding digital audio equipment.
The circuit used in the PRE-73 DLX 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 on the mic input is 80 dB, enough to handle passive ribbon mics with quiet sound sources.
- Gain range on the Line input: -20 to + 10 dB.
- Switchable impedance on the mic input, 1200 or 300 Ohms, will change the tone of most mics.
- 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 controls 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 jacks and separate output XLR and TRS jacks for flexible connections.
- Insert jack for inserting EQ´s and other units.
- External high power power supply to avoid interaction with the audio circuits and transformers.
- A solid build quality that will last many years of normal use.
The PRE-73 DLX has a number of improvement and new features compared to the PRE-73 MKII:
- Tantalum capacitors in the signal path.
- Selectable 1073-style high pass filter, 50Hz, 80Hz, 160Hz and 300Hz.
- Output Attenuator -7, -14, -21 and -28 dB (located after the output transformer) allows overdriving the output stage and the output transformer for added character by lowering the output signal to a suitable level.
- The circuit board is prepared for Carnhill Mic and Line transformer and high pass inductor.
- The Insert jack can be switched in/out from the front panel. An internal jumper can select that the Insert jack always has an output signal.
- Switchable 600 ohm Output Termination and Ground Lift on the back panel.
- Selectable Active or Passive DI input and selectable input impedance in active mode, Hi Z or 100 kohm, by internal jumpers.
- The DI can signal can be selected to pass or bypass the mic input transformer by internal jumpers.
- Relays are used to control internal switching for DI input, Phantom power, Mic Low Z, Insert and Phase for shorter circuit board signal paths. The relays are controlled by front panel switches.
- Revised gain switch for added headroom.
- Circuit board star grounding scheme.
- Revised power supply with separate regulators for the audio circuits and relay and LED circuits.
|
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- Ultra-high quality 8-channel A/D and D/A interface for virtually any digital recording/mixing environment
- 8 state-of-the-art MIDAS designed Mic Preamplifiers
- Phantom power on all microphone inputs
- Reference-class Cirrus Logic 24-bit converters for ultimate signal integrity
- Processes 48 and 44.1 kHz sample rates
- External sample rate synchronization via word clock or ADAT input
- Optical ADAT in/out interface for ultimate compatibility
- All mic/line inputs routed to the ADAT output
- ADAT input routed to all Line outputs
- “Planet Earth" switching power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
- High-quality components and exceptionally rugged construction ensure long life
- Conceived and designed by BEHRINGER Germany
|
- 1 microphone, XLR (bal.) or 6.3 mm jack (unbal.)
- Gain control, 10 steps (6-50 dB)
- Phantom power can be switched on
- Clip LED
- 1 line output, XLR (bal.) or 6.3 mm (unbal.)
- Operation via supplied power unit
| Power supply: | 12 V DC, 150 mA | | Input impedance: | 10 kohms bal./unbal. | | Max. input level: | +4 dB bal./+10 dB unbal. | | Gain: | 50 dB XLR/44 dB jack | | T.H.D.: | 0.01 % | | Frequency range: | 25 Hz - 16 kHz | | S/N ratio: | >75 dB | | Dimensions: | 143 x 93 x 45 mm | | Weight: | 350 g |
|
The AD2022 is Avalon's fourth generation of fully discrete, symmetrical Pure
Class A microphone preamplifiers. The dual mono AD2022 includes the original
sonic capabilities and transparency of the M2, M22 and M5 preamplifiers plus
several additional features, including selectable microphone source loading for
optimized cable/mic matching, improved high-voltage Class A regulated power
supplies, two high Z instrument inputs, variable-passive high pass filter, teflon/
silver wiring and doubled plated circuit boards for superior low level signal transfer.
AD2022 FEATURES
Symmetrical Pure Class A design, two channels
Microphone and hi-Z instrument inputs
Gain switched 4dB steps plus +/- 3dB fine output trim
Selectable microphone input impedance matching
Low noise -126dB EIN
Ultra high quality, low-ratio, balanced input transformer
Balanced, high-current Class A output to +36dB
Large illuminated analog VU meters and twin peak LED's
Regulated phantom power supply +48v
Input polarity phase reverse
High headroom +36dB input before overload
Input -20dB pad for high level signals
Sealed silver relays for all signal routing
External AC 150w toroidal power chassis
Fully discrete Class A regulated audio power supplies
Deep, musical sound-stage, transparent amplification
MICROPHONE INPUT
The AD2022 incorporates the most advanced high-performance microphone
transformer available. Split low-ratio primary windings are carefully combined
within a custom mu-metal core for extended smooth frequency response and
very low distortion. Sealer silver relays are used for minimal signal invasion.
The input signal selector, high pass filter, polarity-phase reverse, +48v power
and the 20dB input attenuator all utilize local sealed relay operation. A variable
passive high pass filter provides a minimum phase shift design while eliminating
low frequency rumble, wind noise and mechanical vibration at sub sonic frequencies.
SYMMETRICAL PURE CLASS A DESIGN
Two 100% discrete, high-voltage, symmetrical Pure Class A signal amplifiers
are utilized per channel. The first operates in a cascaded-cascode FET
configuration while the second stage amplifier is fully bipolar. The twin amplifiers
share the total available gain requirement. This shared architecture increases
the high level headroom capability, improves transient response and doubles the
internal bandwidth of the ultra-high performance pure Class A signal amplifiers.
OUTPUT and METERING
High-current DC coupled, Class A discrete amplifiers are utilized for the output
drive interface with +36dB capability into all known loads. Two large, high-quality
analog VU meters indicate accurate signal readings while bi-color LED's offers
peak indication at 0dB and +20dB.
AD2022 PREAMPLIFIER SPECIFICATIONS
Circuit Topology: Twin cascode FET and bipolar low level signal amplifiers,
high-voltage, 100% discrete, symmetrical Pure Class A
Input Type and Load: Transformer balanced low-ratio, 50, 150, 600 and 1k5
ohm input load selection
Maximum Mic Level: +36dB balanced XLR pin 2 hot (with -20dB passive
attenuator)
Maximum Instrument Level +18dB at 100k ohms instrument input level,
standard mono 1/4 inch jack
Input Attenuator: -20dB resistive pre transformer primary, sealed silver relay
Phantom Power: +48v regulated 50mA capability, sealed silver relay
High Pass Filter: Passive, variable from 30Hz to 185Hz @ 6dB per octave,
sealed silver relay.
Polarity Reverse: Sealed silver relay on microphone input
Gain Range Input: +20dB to +64dB in 4dB steps
Gain Output Range: +/- 3dB variable conductive plastic potentiometer
Maximum Output Level: +36dB balanced 600 ohms, DC coupled, discrete
symmetrical Pure Class A
Output Type: XLR connector, pin 2 hot
Noise EIN Unweighted: -126dB 150 ohm
Noise 20kHz Unweighted: -102dB
Distortion THD, IMD: 0.05% nominal
Frequency Response -3dB: 1Hz to 120kHz transformer limit
System Bandwidth: DC to 1MHz
Output Meter: High quality, illuminated analog VU meter 0dB = +4dB.
Peak Meter: Bi-color LED's 0dB and +20dB peak detection circuit.
AC power supply B2T: External toroidal 100V to 240V, 50-60Hz selectable,
150 watts maximum.
Cables: 90V ac, 4 pin male power input connector, B2T required, internal
DC regulation
Dimensions: 19 x 12 x 3.5 in (482 x 305 x 89mm)
Weight: 15lbs (6.8kg)
Dimensions - Shipping Carton: 24 x 21.5 x 7.5 in (610 x 546 x 190mm)
Weight - Packed: 25lbs (11.4kg) |
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