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True Systems P-SOLO Ribbon Microphone Preamp  From True Systems

Single channel ribbon precision microphone preamp

True Systems

Manufacturer's Description from True Systems

The True Systems P-SOLORibbon mic preamplifier is a single-channel, analog output, microphone/instrument preamplifier “super-tweaked” for superior performance with vintage and contemporary ribbon mics. With up to 76dB of gain (in 2 ranges), the P-SOLORibbon has an electronically balanced, high-impedance mic input, discrete FET instrument input, 80Hz High Pass Filter, a 4-segment LED bar graph level meter with signal present and overload indicators, plus a continuously variable gain control. The back panel offers both XLR and TRS balanced outputs for easy interface (and zero latency monitoring) in any system. 

• Superior results with ribbons and
dynamics and self-powered tube mics
• Up to 76dB gain, high input impedance 
• Discrete FET instrument input 
• HPF, dual outputs
• Internal linear AC supply 
• Compact desktop/portable case 
• Entry-level price for high-end

The P-SOLORibbon is different because it uses a combination of discrete components and integrated circuits in a totally balanced, DC-coupled architecture to achieve extraordinarily clean and transparent performance with ribbon and dynamic microphones. The P-SOLORibbon will reveal more detail than you ever thought possible. (Note: not for active ribbon mics.) The extraordinary TRUE DI offers superior sonic quality comparable only to expensive outboard DI’s.

True Systems

About Manufacturer

TRUE Systems is a product line of Sunrise Engineering and Design Inc., which is involved with consulting, design, and manufacture of electronic equipment used in professional audio production (recording and broadcast studios, concert halls, remote recording and live sound, etc.). The company has, over the last five years, designed or consulted on many studio and product concerns including the design of major, nationally known products for TimeLine Vista, Tascam, and our own brand name, TRUE Systems. TRUE Systems products are made in Tucson, Arizona.

Our customers include Sony Electronics, Sony Classical Recording, Lincoln Center, the Bill Gates residence, numerous professional and semi-professional project recording studios and remote broadcast production companies. Skywalker Studios, Warner Bros., and numerous other major film/video sound post-production companies use the products for which we have been design consultants.

The principal of Sunrise Engineering and Design, Tim Spencer, has thirty years of diverse experience in design, development, integration and manufacturing of complex hardware and software systems. While employed at Burr Brown, he was responsible for design and development of various amplifier products as well as analog-to-digital and digital-to-analog conversion devices - and Burr Brown's very first power operational amplifiers. While employed by Hughes Missile Systems Company, he worked in various engineering and management positions involving design and implementation of automated production test systems, manufacturing technology, product quality, and management information systems.


Gain (microphone): +15.5 to +70dB or +6dB (INP ATTEN mode)
High-Gain mode: +21.5 to +76dB or +12dB (INP ATTEN mode)
Gain (direct input):-4 to +50dB or -14dB (INP ATTEN mode)
High-Gain mode: +2 to +56dB or -8dB (INP ATTEN mode)
Frequency Response (gain=40 dB): 1.5 Hz to 500 kHz (+0/-3 dB)
Maximum Output Level: +31 dBu (+27 dBu in INP ATTEN mode)
Maximum Input Level: +25 dBu (+25 dBu in INP ATTEN mode)
Input Impedance (microphone): 10 Kohms
Input Impedance (direct input): 2.5 Mohms
Noise (Rs=0 Ohms): -132 dB e.i.n.
Slew Rate: > 40 V/uS
CMRR (CMV=+10 dBu): 85 dB
THD (+26 dBu, 100 kOhm): .0008%
Power Requirements: 115/230VAC, 50/60 Hz, 9 Watts
Knob extension: 0.6 in. (15.3 mm)
Weight: 2.3 lbs. (1.1 kg)
W= 3. 0 in. (76. 2 mm)
D = 6. 0 in. (153 mm)
H = 6. 0 in. (253 mm)





True Systems P-Solo Data Sheet