solidyne 542apc scaled

The Orion-462dsp is the processor that many AM and FM radios were looking for to enter to the digital era, still having little money. With the 462dsp an excellent audio quality is obtained, impossible to reach with standard analogical processing.

The coverage area of your radio, both in AM and FM, will be increased up to 50 %. The processor supports analogical balanced inputs and digital AES-3 inputs (optional). It has dual output: MPX out for FM transmitter and simultaneous balanced analog outputs for Internet streaming.

It has 30 memories to store your favorites processing programs (20 preset memories, factory adjusted to go immediately On-Air). All adjustments can be made, in few minutes, from the front panel, using a scrub wheel and following the instructions on the LCD panel. You can assign a password to the system to avoid that somebody changes your adjustments. Also, the processor has a RS232 port to connect it to a computer for remotely commute the programs. The 462dsp replaces 10 audio processors, thus surpassing to many digital processors of greater cost.

We have applied in this unit our 35 years of experience developing audio processors for broadcasting, because we are the older world company, with more experience in this field. The 462dsp is 100% digital, equipped with several DSP units (Digital Signal Processor) that have a total power of 2700 MIPS (million calculations per second). But, which is more important, the 462 uses the fourth generation of DSP, that eliminates the rough digital sound and annoying artifacts, characteristic of the digital processors of the present market. The unit uses converters of 24 bits @ 192 KHz and the processing is made in 48 bits, to eliminate the truncate errors that the audiophiles do not wish to listen… We recommend you to listen our Demos of sound. You will verify that the 462 is the only processor that offers the crisp sound of the digital technology, bringing deep bass and high stereo definition, characteristics of the sound of hi-end Audiophile Audio Systems.

Model 462dsp has included a digital SC-100 stereo coder with the new oversampling technology. Model 462-AM, for AM transmitters, is mono and has two independent balanced XLR outputs for main and spare transmitters. It complies with the NRSC-1 and NRSC-2 recommendations for AM and have up 150 % asymmetry capacity.

  • Five bands: 5 x AGC; 5 x Compressor; 5 x Limiter; 5 x Clipper (IM cancelled)
  • Increases the radio distance range and avoids interference and noise in News & Journalism programs
  • Total flexibility: The 542 is a Universal Processor that changes the model and number of bands by changing software
  • The software can be remotely upgraded without interrupting the on-air programming.
  • Improves the announcers voices due the settings change from Music to Voice when microphones are open
  • The only processor at the market that includes FM Monitor with Audio Quality Analyzer
  • In case of failure of the connection with studio automatically switches to another input
  • It's the only processor at market that improves your sound quality by correctios of the chain: Xmtr - Coaxial - Antenna
  • It send messages to cell phone about transmission problems or operating errors
  • Includes RDS / RBDS Coder to see texts in FM receivers
  • Includes TWO versions of remote control software: one for engineers and other for operators (Lite Commander)
  • Options 542/ AoIP for streaming input and RM-542 for remote control from the studio

Technical Specifications

  • INPUTS:Stereo balanced XLR3 connector, 600 ohmsNominal level +4 dBu. Max level +24 dBu, Software adjusted
  • Stereo balanced on RJ45 (compatible StudioHUB)Nominal level -10 dBu to +24 dBu, 600 ohms
  • Digital AES-3 input transformer balancedNominal level -18 dBFS Adjust from -24 to 0 dBFSSample rate 44.1 KHz – 48 Khz - 96 KHz
  • Optional stereo AoIP for LAN Ethernet or Internet input
  • RF Input: Digital Receiver for FM Monitor and Audio Analyzer
  • VOICE/ MUSIC change: GPI = +5V ... +15V for VOICE preset (On-Air mi-crophones). Voice/Music switch received from console in AoIP models
  • OUTPUTS:Analog Balanced on XLR connector+4 dBu; Z= 600, Max +18 dBu, Flat frequency response.
  • Analog unbalanced RJ45 output (compatible StudioHUB)+4 dBu/600 ohms.
  • Digital AES-3 transformer balanced 0VU at -12 dBFS
  • MPX-1 & MPX-2 for FM transmitters (Normal & Emergency)0 - 5,5 Vpp Independent level software controlled, Z=50 Ohms
  • Diferential output, BNC connector, foating ground 50 ohms Allows 45 dB canceling buzz & noise due to ground loopsProtected for electrical storms 2 KV overload
  • Optional AoIP processed digital output in /AoIP models. It allows for di-rect audio streaming or for AoIP connection between diferent Studios
  • IN/OUT Control:Automatic fold-back to switch the input in case of absence of signal in the main input.
  • Frequency response:ANALOG BAL = 20 – 16 KHz +/- 0,3 dB
  • AES to AES = 20 – 16 KHz +/- 0,3 dB
  • Measured below compression & limiter threshold
  • Harmonic distortion:ANALOG BAL = Below 0,005 % @ 1 KHz
  • AES to AES = Below 0,002 %
  • Dynamic Range:ANALOG BAL to ANALOG BAL = 95 dBA
  • AES to AES = 110 dBA
  • Stereo separation:> 80 dBA
  • Subsonic flter:Chebyshev 4th order, Selectable: OFF - 40 Hz
  • Asymmetry cancelling:5:1 cancelling reduction using Khann-Bonello method
  • Expander:Software controlled with user settings
  • Multiband compressors:From 4 to N bands depending of software version used
  • Linear Phase crossover
  • Software adjustable automatic attack and release time
  • Multiband compressors:From 5 to N bands, scalable by frmware.
  • Linear Phase crossover
  • Software adjustable automatic attack and release time
  • EFFECTS:Super BASS efect and Stereo Enhancer is standard in all software versions
  • Linear limiters with predictive technology (Look Ahead) replaces the oldclipper systems giving the audience a full clean sound
  • PROCESSING:#bands, #stages, features, etc are 100% dependent on software versionused. It can work in FM, AM, HD, TV & Streaming modes
  • Standard 542APC works in fve bands FM mode 0-50-75 uS
  • Latency (typical) 9 mS
  • POWER:115 V / 230 V (rear switch selected) 50/60 Hz, 20W
  • DIMENSIONS:19" rack mount. Module one (44,4 mm) // weight 3 Kg Net; (4 Kg for courier freight)


  • DIMENSIONS:Two MPX outputs with individual remote level control by LAN or Internet
  • Differential output, BNC connector, foating ground 50 ohms. Allows 45 dB canceling buzz & noise due to ground loops
  • Level of each output adjustable from 0 to 5,5 Vpp
  • FREQUENCY RESPONSE:20-15.000 +/- 0,2 dB, plus 16 Khz/linear phase flter Attenuation at 19 Khz > 80 dB
  • THD:Better than 85 dBA with reference to 100% modulation. Measured using Belar Digital Stereo decoder model DSD-1A19" rack mount. Module one (44,4 mm) // weight 3 Kg Net; (4 Kg for courier freight)
  • STEREO SEPARATION:>65 dB at 1 Khz
  • 38 Khz SUPRESSION:Below -80 dB Ref 100% modulation
  • 57, 76 & 95 Khz SUPRESSION:Below -80 dB Ref 100% modulation
  • PILOT TONE STABILITY:+/- 0,002 % (+/- 0,5 Hz)


  • RDS / RBDS SIGNAL:Conforms to CENELEC EN50067 / EN 62106 / Control interface based on ASCII commands and UECP protocol
  • Built-in weekly scheduling
  • RDS SIGNAL BANDWIDTH:+/- 2.4 kHz (50 dBc)
  • DATA CONNECTOR: ETHERNET PORT:RJ45 connector for TCP/IP LAN Ethernet Text features include dynamic PS, parsing, scrolling, fxed messages, scheduling and reading from HTTP.
  • DATA PORT SPEED:2400 – 9600 BPS
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Tech Support

2-Year Warranty


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STUDIO Solidyne 542APC