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Sontronics' SIGMA phantom-powered ribbon microphone is one of our most popular products thanks to its incredible performance and value for money.
Ribbon mics are renowned for their smooth, uncoloured audio characteristics but most have a transformer-based output, which makes it difficult to achieve consistency when using different preamps. SIGMA, however, is phantom-powered and operates just like any other Sontronics condenser mic, allowing you to plug and play with practically any preamp.
SIGMA's sensitivity is high and its low self-noise figure is simply amazing for a ribbon microphone. It excels at reproducing signals with a high-frequency bias, resulting in an extremely pleasing, natural sound.
The Sontronics SIGMA comes in a velvet-lined aluminium flightcase with a unique shockmount to isolate it from any noise transferred through the microphone.
If you're looking for a microphone with all the silky smoothness of a vintage ribbon mic but with all the ease-of-use and build quality of modern technology, you've found it with SIGMA!
Specifications
Frequency Response - BidirectionalClick Graph to Compare!
Sigma Bidirectional Frequency Response Chart
Pickup Patterns Pads & Filters
Bidirectional (18 mV/Pa; 20 - 15,000 Hz)
Ribbon Construction Impedance SPL/Noise
aluminum ribbon
Self-noise: 14.0 dB(A)
Weight Length Max Diameter Interface(s)
495g (17.46oz) 165mm (6.50'') n/a
3-pin XLR male (1)
Power Specifications
Requires phantom power
Phantom voltage: 48 ± 4v
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| Acoustical operating principle | Pressure gradient transducer | | Directional pattern | Cardioid | | Frequency range | 20 Hz ... 20 kHz | | Sensitivity at 1 kHz into 1 kohms | 18 mV/Pa | | Rated impedance | 50 ohms | | Rated load impedance | 1000 ohms | | Equivalent SPL CCIR 468-3 | 21 dB | | Equivalent SPL DIN/IEC 651 | 10 dB-A | | S/N ratio CCIR 468-3 | 73 dB | | S/N ratio DIN/IEC 651 | 84 dB | | Maximum SPL for THD 0.5% | 140 dB | | Maximum output voltage | 13 dBu | | Dynamic range of the microphone amplifier DIN/IEC 651 | 130 dB | | Supply voltage | 48 V ± 4 V | | Current consumption | 3 mA | | Matching connectors | XLR 3F | | Weight | 480 g | | Diameter | 49 mm | | Length | 175 mm |
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NT2-A - ?The Legend Continues? Multi Pattern 1? Condenser Microphone.
The new NT2-A carries on the tradition forged by the now legendary R?DE NT2.
A professional large capsule (1?) studio microphone incorporating three-position
pick-up patterns, pad and high pass filter switches conveniently located on the
mic body.
At the heart of the NT2-A is the Australian designed and manufactured HF1 dual
diaphragm capsule. The frequency and transient response of this new transducer
has been voiced to complement today?s modern recording techniques, and yet still
evoke the silky smooth character of the legendary microphones of the 50?s and 60?s.
These features provide the flexibility and superlative audio characteristics that make
the NT2-A one of the most versatile condenser mics available.
The NT2-A?s variable controls allow switching between Omni, Figure 8, and Cardioid
polar patterns. The three position high-pass filter provides a flat response or an 80Hz
and 40Hz high pass filter to be selected. Finally the microphones Pad can be switched
between 0 dB, -5dB and -10dB. The NT2-A comes in a soft pouch with an M2 stand mount.
SPECIFICATIONS:
Features:
The Australian designed and manufactured HF1 1? edge terminated, gold sputtered, dual
5 um diaphragm capsule. 3-position variable polar pattern: Omni, Cardioid & Figure 8; all
controlled on the mic. 3-position variable high-pass filter: Flat, 80 Hz or 40 Hz. 3-position
variable pad: 0 dB, -5 dB or -10 dB. Ultra low noise, transformerless SMT circuitry. Wide
dynamic range. High strength heat-treated steel mesh head. Durable satin nickel finish.
Internal capsule shock mounting. Supplied complete with soft pouch and clip. Designed
and manufactured in Sydney, Australia.
Operation power:
The NT2-A is designed to operate from phantom power to the P48 standard. The NT2-A will
operate between 44V and 52V applied with positive polarity to pin 2 and pin 3 of the output
XLR connector.
Operation output impedance:
The NT2-A will operate satisfactorily into a load impedance as low as 1 kΩ. If a load below this
is used, the output signal level will be reduced. The NT2-A output is balanced between pin 2 (hot)
and pin 3 (cold). Pin 1 is ground.
Acoustic principle: Externally polarized 25 mm (1?) dual diaphragm.
Directional pattern: Multi-pattern
Frequency range: 20 Hz ~ 20 000 Hz
Output impedance: 200 Ω
Signal noise ratio din iec 651:
87 dB (1 kHz rel 1 Pa; per IEC651, IEC268-15)
Equvalent noise: 7 dBA SPL (per IEC651, IEC268-15)
Maximum spl:
147 dB (@ 1% THD into 1 kΩ); 157 dB (@ 1% THD into 1 kΩ) - pad at maximum
Sensitivity: -36 dB re 1 Volt/Pascal; (16 mV @ 94 dB SPL) +/-2 dB
Dynamic range din iec 651: 140 dB (per IEC651, IEC268-15)
Power supply voltage: 48 Volts (P48)
Output connection:
3 pin XLR, balanced output between; pin 2(+) and pin 3(-); Pin 1 ground
Weight with battery: 860 grm | A/B, X/Y, and M/S stereo recording
Ambience recording
Grand piano, woodwind and brass instruments
Percussions
Drums
Classical music recording
Studio applications
- Back-to-back large-diaphragm multi-pattern transducer
- True condenser technology
- High sensitivity and 155 dB maximum SPL capability
- Switchable 20 dB preattenuation pad
- Switchable bass cut filter
- Legendary, pristine AKG sound quality
- Complete with spider-type shock mount and aluminium carrying case
| Type |
Dual-capsule,1-inch large-diaphragm, true condenser pressure-gradient microphone |
| Polar pattern |
Cardioid, omnidirectional, figure-eight |
| Frequency range |
20 to 20,000 Hz |
| Sensitivity |
28 mV/Pa (-31 dBV) |
| Max. SPL |
135/155 dB SPL (0/-20 dB) for 0.5% THD |
| Equivalent noise level |
16 dB-A (IEC 60268-4) |
| Signal/noise ratio (A-weighted) |
78 dB |
| Preattenuation pad |
0 dB, -20 dB |
| Bass filter |
12 dB/octave, 300 Hz |
| Impedance |
=1000 ohms |
| Current consumption |
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| Large diaphragm cardioid microphone | | Pressure gradient transducer with with one-diaphragm capsule | | Transformerless circuitry | | Extremely low noise: 7 dB-A | | Includes swivel mount | | Straightforward handling for homerecording and professional studios | |
High-quality professional equipment for limited budgets
| Acoustical operating principle | Pressure gradient transducer | | Directional pattern | Cardioid | | Frequency range | 20 Hz ... 20 kHz | | Sensitivity at 1 kHz into 1 kohm | 23 mV/Pa | | Rated impedance | 50 ohms | | Rated load impedance | 1 kohms | | Equivalent noise level, CCIR1) | 17.5 dB | | Equivalent noise level, A-weighted1) | 7 dB-A | | Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL) | 76.5 dB | | Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL) | 87 dB | | Maximum SPL for THD 0.5%2) | 138 dB | | Maximum output voltage | 13 dBu | | Dynamic range of the microphone amplifier (A-weighted) | 131 dB | | Supply voltage (P48, IEC 61938) | 48 V ± 4 V | | Current consumption (P48, IEC 61938) | 3 mA | | Matching connector | XLR3F | | Weight | approx. 450 g | | Diameter | 60 mm | | Length | 132 mm |
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- Polar pattern: Cardioid
- Switchable -10dB PAD
- Frequency response: 20 - 20,000 Hz
- Max. SPL: 140/150 dB (THD = 0.5%)
- Electrical impedance: 200 Ohm
- Requires phantom power
- Diameter: 53 mm
- Length: 162 mm
- Net weight: 320 g
- Colour: Black
- Incl. shock mount
- Highly affordable AKG large-diaphragm microphone technology
- Cardioid polar pattern for multiplicity of vocal and instrument applications
The earlier model C 3000 has had a large fan club in the project studio and home recording worlds for years. For the new C 3000 B, AKG designed a special 1-inch large-diaphragm transducer that closely approximates the vibration performance of top-class studio microphones, but can be made at much lower cost.
Due to its surface area and special capsule tuning, the C 3000 B large-diaphragm transducer produces an exceptionally pleasing, smooth sound. Unlike in the C 3000, the switchable 10-dB preattenuation pad immediately follows the transducer in the signal path, thus increasing the C 3000 B\'s SPL capability by a true 10 dB. Loud sound sources are therefore no problem.
An acoustically optimized cardioid polar pattern makes the C 3000 B an excellent choice for both recording and live sound applications where high gain before feedback is paramount.
| Polar pattern |
cardioid |
| Frequency range |
20 to 20,000 Hz |
| Sensitivity |
25 mV/Pa (-32 dBV) |
| Max. SPL |
140/150 dB (k=0,5%) |
| Equivalent noise level (CCIR 468-3) |
25 dB |
| Equivalent noise level |
14 dB-A |
| Signal/noise ratio (A-weighted) |
80 dB |
| Preattenuation pad |
10 dB, switchable |
| Bass filter |
6 dB/octave below 500 Hz |
| Impedance |
200 ohms |
| Recommended load impedance |
>1000 ohms |
| Supply voltage |
9 to 52 V phantom power to DIN 45596 |
| Current consumption |
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| Connector |
3-pin XLR |
| Finish |
silver gray |
| Net weight |
320 g / 11.3 oz. |
| Shipping weight |
950 g / 2.1 lbs. |
| Patent(s) |
Electrostatic transducer (Patent no. AT 395.225, DE 4.103.784, JP 2.815.488) |
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