GOLDEN AGE PRE73 DLX Προενισχυτής μικροφώνου

Το νέο Pre -73 DLX ένας μονοκάναλος προενισχυτής μικροφώνου με vintage στύλ. Η διαδρομή του σήματος χρησιμοποιεί μόνο ξεχωριστά διακριτά στοιχεία, όπως
πυκνωτές, αντιστάσεις, και τρανζίστορ. Oι τρείς διαφορετικοί  μετασχηματιστές που διαθέτει σε  mic in , line in και στην έξοδο, ειναι  κατασκευασμένοι για να προσφέρουν το βέλτιστο αποτέλεσμα.

Αυτός ήταν ο τρόπος που κατασκευάζονταν τα audio εξαρτήματα πριν την δημιουργία  των ολοκληρωμένων  κυκλωμάτων.Η εξαιρετική  ποιότητα ήχου που προσφέρει  είναι
συνήθως καλήτερη απο αυτή σύγχρονων μονάδων, κάτι που γίνεται  προφανές στη καθαρότητα της σημερινής μουσικής η οποία έχει καταγραφεί με ψηφιακά μέσα.

Το κύκλωμα που χρησιμοποιείται στο Pre -73 DLX είναι παρόμοιο με το κύκλωματου κλασικού 1073, με αντίστοιχο  χαρακτήρα και εξίσου ζεστό, ζωηρό και γλυκό ήχο.
Αυτά τα χαρακτηριστικά έχουν ακουστεί σε αμέτρητες ηχογραφήσεις τα τελευταία  40 χρόνια και είναι ένας  ευέλικτος  ήχος  που λειτουργεί πολύ καλά με τις
περισσότερες πηγές ήχου και στα περισσότερα μουσικά είδη. Ο χαρακτήρας αυτού του ήχου είναι τώρα διαθέσιμη σε εκπληκτικά χαμηλό κόστος,
ώστε να είναι προσιτή  σε όλους.

ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ

- 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.
 

O PRE-73 DLX ΕΧΕΙ ΜΙΑ ΠΛHΘΩΡΑ ΒΕΛΤΙΩΣΕΩΝ ΣΕ ΣΧΕΣΗ ΜΕ ΤΟΝ 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.

Behringer MIC-2200 2-Channel Tube Microphone Preamplifier-Line Driver-DI Box

The MIC2200 is the ideal extension to your console, MIDI setup or hard disk recording system. Its integrated parametric EQ?s give you extra sound-shaping power, while its built-in tube adds warmth and transparency to your signal. In addition, the ULTRAGAIN PRO features direct injection and level conversion functionality.

Τετραπλός προενισχυτής μικροφώνου. Διαθέτει
πιεστικούς διακόπτες για mic/line/instrument,
+48V, insert, filters, phase και ρύθμιση
αντίστασης εισόδου. Επίσης διαθέτει ρύθμιση
gain, trim και filter. Δέχεται προαιρετικά κάρτα με
ψηφιακή έξοδο.

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) 

• Solid housing
• RIAA Equalization
• High quality components

Φορητός Προενισχυτής Μικροφώνου υψηλής ποιότητος. Διαθέτει 1 είσοδο Mic XLR με phantom power 48 /12 volt, 1 έξοδο XLR, Ρύθμηση έντα­σης Mic (66 dB Gain σε 11 βήματα), High-pass filter 80 η 160 Hz, Peak Limiter, Λειτουργεί με 2 μπαταρίες ΑΑ.