The GoldMike is another jewel in the SPL Tube series. Like all SPL tube processors, the GoldMike combines the unique sonic qualities of tube technology with state-of-the-art manufacturing, meticulous component selection and high-tech conception. This latest product, a dual-channel tube microphone preamplifier with superb sonic qualities, is particularly suited for recording vocals and acoustic instruments. You will be surprised by not only its precision but also the natural impact of different vocal timbres - the silky warmth of a pristine tube sound is needed by more than just acoustic guitars!

Extended information

You don't have to listen to those dead and sterile HD recordings. GoldMike's whisper quiet performance makes it ideal for digital recording. Even the most demanding recording subjects, such as a choir, are easily handled. The Class A tube amp, designed as two independent mono blocks, guarantees absolute channel separation. Your stereo recordings in particular will benefit from a wider stereo depth.

GoldMike's technical standards are predicated on an uncompromising effort to combine the sonic advantages of tubes with the experience of more than 12 years of research in semi-conductor amplification design.

The GoldMike allows for up to 72 dB of gain - a value tube-only designed preamps can't match. The SPL tube/IC construction, on the other hand, superbly combines today's standards with such trademark tube characteristics: improved spatial depth, rich detailed imaging, warm and smooth sonics. Moreover, the GoldMike delivers high common-mode-rejection and ultra linear amplification in addition to the high gain capabilities.

Features - Unique "FLAIR" circuitry enhances the presence and intelligibility of any signal. Vocals, for example, seem to move closer. Pristine, non-colored "softening"of very harsh and aggressive sounds.

50Hz high-pass filter, phase reverse switch, 30 dB pad, switchable 48-volt phantom power with independently filtered power supply, high-quality ALPS potentiometers, click-free switches, five LEDs per channel, two backlit VU meters, Warm-up LED indicates tube status during warm up, Star ground wiring scheme for best sound performance, extra wide PCB ground connections guarantee stable voltage distribution, Power supply with state-of-the-art filtering schemes and solid power reserves (6000 µF in the main supply and 400 µF in the tube supply), XLR inputs, XLR and 1/4" outputs (can be used individually or simultaneously).

Technical specifications

Measurements

* Frequency Response: 10 Hz - 100 kHz, +/- 0.5 dB
* Common-Mode-Rejection at -20 dBu: 1 kHz: -80 dBu; 10 kHz: -73 dBu
* Harmonic Distortion Input level: THD 0.175% at 30 dB Gain
* Signal-to -Noise Ratio: -85.6 dBu (A-weighted) at 30 dB Gain
* Dynamic Range: 111 dBu
* Noise Figure: 3.8
* E.I.N. (Equivalent Input Noise): 135.4 dBu


Inputs

* Microphone/Instrument Preamplifier, electronically balanced (differential), transformerless
* Input Impedance: 1.8 kOhm
* Max. Input Level : +25.72 dBu


Outputs

* XLR-Output: Microphone/Instrument Preamplifier, electronically balanced (differential), transformerless
* Nominal Output Level XLR: +6 dB
* Max. Output Level XLR: +25.4 dB
* Nominal Output Level 1/4": 0 dB
* Max. Output Level 1/4": +19.4 dB
* Output Impedance (XLR/Jack): < 600 Ohm


Dimensions

* Standard EIA 19"/1HE chassis: 19" x 3.47" x 6.18" (482 x 88 x 157mm)
* Weight: 6.7 lbs. (3.05 kg)


Rear Panel Controls and Connectors

* Balanced Inputs and Outputs (XLR/+6 dB)
* Unbalanced Outputs (1/4" / 0 dB)
* Voltage Selector 115 V/60 Hz or 220 V/50
* 3-Prong Standard-IEC-AC Receptacle
* GND-LIFT-Switch