STUDIO

Crescendo duo

Dual-Channel Microphone Preamplifier in 120V-Technology

With the Crescendo duo, we are expanding our 120V microphone preamp portfolio with a dual-channel version of the Crescendo.

The Undistortable

Crescendo duo convinces with the same outstanding sound and technical features as the flagship of the product range – the eight-channel Crescendo.

It is almost impossible to overdrive this microphone preamplifier. It shines with absolute signal fidelity and clarity and lets microphones appear in a whole new light – because they have never been amplified like this before.

48 V

The phantom power required for the use of condenser microphones is activated with the 48V switch.

VU -10

In the Crescendo duo, high gains can be used to optimally drive subsequent AD converters. Should the VU meter therefore deflect too far, you can reduce the displayed level by 10 dB.

Ø

Turn the polarity of a microphone signal 180° by activating the polarity reversal switch.

HP

A high-pass filter with 6 dB per octave reduces subsonic noise below 120 Hz.

Mic Gain

The gain is adjusted by a 12-step switch. The pre-amplification ranges from +18 dB to +70 dB.

Output

The switchable output control allows level adjustment to subsequent devices. The control range is +/- 10 dB. This results in a total gain of 80 dB.  

Pad

For loud input signals (including line signals) the input sensitivity can be reduced by 20 dB.

Built-in Output Splitter

Both microphone preamps have dual outputs. The often needed splitter is therefore already built in. Record the microphone signal on a recording system and at the same time record it on a backup system.

"Its sound has an extremely noble, gentle character, which lends depth and transparency to a recording. Especially in genres like jazz and classical music the Crescendo duo should be very popular, because it transmits the dynamics of a performance very well and offers so much headroom that distortion is not an issue at all.

Chris Pfeil
Amazona

The 120V technology

The 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps.

The highest possible audio quality requires the highest possible audio operating voltage.

The 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers.
This high voltage would destroy conventional components and operational amplifiers.

By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.

The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.

The idea for SPL 120V technology and the SUPRA operational amplifier based on this technology were developed in the 1990s by SPL founder and chief developer Wolfgang Neumann.

With the goal of building the best mastering console ever, this basic technological philosophy then took shape for the first time – thus the SPL MMC1 Mastering Console for Galaxy Studios saw the light of day in 2000.

SPL MMC 1 in the „Galaxy Mastering Studios“
SPL MMC 1 in den „Wisseloord Studios“

The outstanding sonic and technical features quickly got around in the scene – so further orders were not long in coming.

Besides the MMC 1, another legendary product with 120V technology was created with the PQ, the “King of Parametric Equalizers”.

Since that time, 120V technology has been the foundation for all SPL premium products. Meanwhile, not only for mastering applications, but also for the, studio or hifi use.

SPL PQ – Modell 2050

What exactly is that?

And what does it do?

Good questions need good answers.

And that’s what the 120V technology video gives you.

Play Video

VOLTAiR is that good

In the lab, we pitted Phonitor xe against the best audio measurement system and found that Audio Precision could not measure VOLTAiR technology.

Play Video

Reviews

Amazona
Proaudio.de
Professional Audio

Other Microphone Preamplifiers

Crescendo
Crescendo
Microphone Preamplifier
Frontliner
Frontliner
Channel Strip
Channel One
Channel One
Channel Strip
Track One
Track One
Channel Strip
GainStation 1
GainStation 1
Class A & Tube Microphone-/Instrument Preamplifier
GoldMike Mk2
GoldMike Mk2
Dual Channel Microphone & Instrument Preamplifier

Manuals

Play Video
Replacement of defective fuses for 115V
Play Video
Replacement of defective fuses for 230V
Play Video
Changing the mains voltage from 115V to 230V
Play Video
Changing the mains voltage from 230V to 115V

Specifications

Analog input & output; XLR (balanced)

Maximum input & output level
32.5 dBu
Input impedance
10
Output impedance
75 Ω
Frequency range (-3dB)
20 Hz – 100 kHz
THD + N (10 Hz – 22 kHz, 32 dB Gain)
0.002 %
THD + N (10 Hz – 22 kHz, 63 dB Gain)
0.001 %
Noise (A-weighted, 150 Ω, 32 dB Gain)
- 94 dBu
Noise (A-weighted, 150 Ω, 63 dB Gain)
- 67.5 dBu
E.I.N. (150 Ω)
-130.5 dBu
Common mode rejection (1 kHz)
88 dB

Internal Linear Power Supply with Shielded Toroidal Transformer

Operating voltage for audio electronics
+/- 60 V
Operating voltage for relays and LEDs
+ 12 V

Mains Power Supply

Mains voltage (selectable, see fuse chamber)
230 V AC / 50; 115 V AC / 60 Hz
Fuse for 230 V
T 1 A
Fuse for 115 V
T 2 A
Power consumption
max. 20 VA

Dimensions & Weight

W x H x D (width x height x depth)
482 x 88 x 300 mm
19 x 3.46 x 11.8 inch
Unit weight
6.1 kg
13.45 lbs
Shipping weight (incl. packaging)
7.5 kg
16.54 lbs

Reference: 0 dBu = 0,775V. All specifications are subject to change without notice.

Calculation of VAT (value added tax)

All prices are displayed by default including the VAT of your country.

If your country cannot be determined via geolocation and you are not logged in as a user with the billing address of your country, the prices are displayed including the VAT of Germany (19%).

What does it actually mean …

In Stock!

The product is in stock in our warehouse in Niederkrüchten, Germany, and will be shipped the same or next working day.

We process the orders after receipt of the order and update the stock in the online shop regularly. If the product is no longer available at short notice due to high order volume, you naturally have the right to withdraw from the purchase (see Right of Withdrawal).

In any case, you will receive an e-mail with details of the delivery and the estimated delivery time.

Available soon!

The product is not in stock in our warehouse in Niederkrüchten, Germany. Usually it will be available again within 5 working days.

Due to the current pandemic and the associated worldwide shortage of components, delivery times may be significantly delayed in some cases.

In any case, you will receive an e-mail with the details of the delivery and the estimated delivery time.

Of course you have the right to withdraw from your purchase (see Right of Withdrawal).

Currently unavailable.

This product is currently sold out and unavailable.

Was bedeutet eigentlich …

Auf Lager!

Das Produkt ist in unserem Lager Niederkrüchten vorrätig und wird noch am selben oder nächsten Werktag versendet.

Wir arbeiten die Bestellungen nach Bestelleingang ab und aktualisieren den Bestand im Online-Shop regelmäßig. Falls das Produkt wegen hohem Bestellaufkommens kurzfristig nicht mehr verfügbar ist, hast du selbstverständlich das Recht, vom Kauf zurückzutreten (siehe Widerrufbelehrung).

In jeden Fall erhältst du eine E-Mail mit den Einzelheiten der Lieferung und der voraussichtlichen Lieferzeit.

Bald verfügbar!

Das Produkt ist in unserem Lager Niederkrüchten nicht vorrätig. Gewöhnlich ist es innerhalb von 5 Werktagen wieder verfügbar.

Aufgrund der aktuellen Pandemie und der damit verbundenen weltweiten Bauteileverknappung kann sich die Lieferzeit z.T. stark verzögern.

Auf jeden Fall erhältst du eine E-Mail mit den Einzelheiten der Lieferung und der voraussichtlichen Lieferzeit.

Selbstverständlich hast du das Recht, vom Kauf zurückzutreten (siehe Widerrufbelehrung).

Zur Zeit nicht verfügbar.

Dieses Produkt ist derzeit ausverkauft und nicht verfügbar.

Product Condition

A-Stock

Brand-new product from the current product portfolio.

B-Stock

Demo, exhibit or return item.
In original packaging, incl. manuals and full warranty.
Only slight to no signs of use.

C-Stock

Demo, exhibit or return item.
In original packaging, incl. manuals and legal warranty.
In some cases clear signs of use, which are documented in photos.

NOS

"New Old Stock"
After discontinuation of a product still available new products with full warranty.

Events

Due to Covid19 there are no events scheduled at this time.

Events

Aufgrund von Covid19 sind derzeit keine Events geplant.

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