When upgrading your audio system, a good clean signal is critical. The linkD is a versatile little box with a dual personality.  First, it is an active, high output/ low impedance line output convertor (LOC).  It was designed to work well with high power factory audio systems.  It also functions as a high output voltage line driver, delivering over 10V RMS of output at less than 60ohms.  If these numbers don't mean anything to you that's ok, they are really good. 

It features auto turn-on via DC-offset or Audio Signal Detect.  This allows the unit to turn on without the need of a remote wire, and even generates a +12V output to turn on the amplifier or other aftermarket devices in your system,.  This makes it a great choice for upgrading an OEM audio system.

linkD Features

• 2-Channel Line Driver or Line Output Converter  (LOC)
• Differential Balanced Inputs
• Low Output Impedance
• Variable Gain with Clip LED
• Auto-Turn On via DC-Offset or Audio Signal Detect
• Generated +12V Remote Output
• OEM Load Detect Compatible
• Selectable Ground Isolation
• Professional Grade Panel Mount RCA’s
• Locking Detachable Power and Speaker Terminals
• Compact Aluminum Chassis w/Detachable Mounting Tabs

linkD Specifications

• Output Voltage (RCA) ----------- >10V RMS
• Output Impedance ---------------- <50Ω
• Input Sensitivity (SPK/RCA) ---- 2-20Vrms / 0.5-5Vrms)
• Max Input Voltage (SPK) -------- 40Vrms 
• Frequency Response ------------- <10Hz to >100kHz
• THD+N (SPK/RCA) ----------------- <0.1% / <0.01%
• S/N (SPK/RCA) ---------------------- >112dBA / >115dBA
• Turn-On Trigger -------------------- +12V, DC-offset & Audio Detect
• Generated +12V Output -------- >500mA

You've just installed a new audio system, but something isn't quite right.  No matter how hard you try, you just can’t get the image positioned where you want it.  Another common problem occurs in systems with multiple subwoofers, powered by multiple amplifiers.  Issues with phasing can create a loss in bass output.

Our "Patent Pending" linkT provides a simple solution to these dilemmas.  Using DSP Time Alignment technology, each dial represents a digit in the range of milliseconds (ms) of delay available.  All dials in the maximum position equal 9.95ms of delay.  The minimum increment of adjustment is .0625ms.  1 ms is equal to approximately 13.5in (0.34m).  If all this sounds confusing, don't worry.  It simply means you can control the time when the sound reaches your ears, so that any sound stage imaging or subwoofer phase problems are corrected.

linkT Features

• 2-Channel Digital Time Alignment Processor
• 2-Channel Line Driver or Line Output Converter (LOC)
• Differential Balanced Inputs
• Low Output Impedance
• Independent Variable Gains with Clip LEDs
• Auto Turn-On via DC-Offset or Audio Signal Detect
• Generated +12V Remote Output
• OEM Load Detect Compatible
• Selectable Ground Isolation
• Professional Grade Panel Mount RCA’s
• Locking Detachable Power and Speaker Terminals
• Compact Aluminum Chassis w/Detachable Mounting Tabs

linkT Specifications

• Output Voltage --------------------- >10V RMS
• Output Impedance ----------------- <50Ω
• Input Sensitivity (SPK/RCA) ----- 2-20Vrms /0.5-5Vrms
• Max Input Voltage (SPK) --------- 40Vrms 
• Frequency Response -------------- <10Hz to >44KHz
• THD+N (SPK /RCA) ----------------- <0.1% /<0.05%
• Signal to Noise (S/N) -------------- >95dBA />95dBA
• Time Delay Range ------------------ 0 to 9.94ms (11.2ft/3.4m)
• Time Delay Increments ----------- 0.0625ms (0.85in/2.1 cm), 1ms (13.5in/34.3cm) 
• Generated +12V Output --------- >500mA

When it comes to adding an amplifier or amplifiers to your factory audio system, the link4 does what models from competing brands just can’t.  Simply put, it is the most flexible 4-channel LOC available today. 

The link4 can directly accept 4-channels of input and give you 4-channels of output.  It can accept 2-channels of input and give you 4-channels of output.  If you input 4-channels, you can sum them down to 2-channels of output.  It even has a 3.5mm Auxiliary Input so you can add your phone or other portable device to the system.  No other 4-channel LOC can do all of that. 

As an added bonus, it includes our "Patent Pending" Multi-Function Remote Level/ Source Control that can adjust your subwoofers output level, the volume of the auxiliary source or serve as a Master Volume Control for your entire system.  This is especially useful in OEM systems where speed sensitive volume or equalization are present.

link4 Features

• 4-Channel Line Output Converter
• 4-Channel Summing Processor
• Multi-Function Remote Level/ Source Control
  • Master Volume Control
  • AUX Volume Control
  • Independent Ch3/4 Level
  • Source/Function Select
• AUX 3.5mm Input
• Differential Balanced Inputs
• Low Output Impedance
• Independent Variable Gains with Clip LEDs
• 2ch/4ch Input Select
• 2-Way Summing with Retained Ch3/4 Level Control
• Auto Turn-On via DC-Offset or Audio Signal Detect
• Generated +12V Remote Output
• OEM Load Detect Compatible
• Selectable Ground Isolation
• Professional Grade Panel Mount RCA’s
• Locking Detachable Power and Speaker Input Terminals
• Compact Aluminum Chassis w/Detachable Mounting tabs

link4 Specifications

• Output Voltage (RCA) ------------ >10V RMS
• Output Impedance ----------------- <50Ω
• Input Sensitivity (SPK/AUX) ----- 2-20Vrms /0.5-5Vrms
• Max Input Voltage (SPK) --------- 40Vrms 
• Frequency Response -------------- <5Hz to >100kHz
• THD+N (SPK/AUX) ------------------ <0.05% /<0.05%
• S/N (SPK/AUX) ----------------------- >114dBA />115dBA
• Turn-On Trigger ---------------------+12V, DC-offset & Audio Detect
• Generated +12V Output --------- >500mA

You have just added a subwoofer to your system but something just isn’t quite right.  Maybe what is needed is a little bit of equalization?  It could be that the crossover built into your amplifier doesn’t have a steep enough slope.  Maybe you are using a ported enclosure and could really use a subsonic filter?  Whatever the issue is, the bassFREQ can help resolve it. 

The bassFREQ has RCA inputs but also includes the same class leading LOC as our link series products, so integrating with an OEM system is a snap.  There is Parametric Equalization and a 24dB/ octave low pass crossover.  A Remote Level Control (RLC) is included.

bassFREQ Features

• Bass Enhancement Processor
  • Fully Adjustable Parametric EQ
  • Variable Subsonic Filter (-24dB/Oct.)
  • Variable Low-Pass Crossover (-24dB/Oct.)
  • Includes Remote Level Control (RLC)
• Line Driver or Line Output Converter (LOC)
• Differential Balanced Inputs
• Low Impedance Dual Mono Drive Outputs
• Variable Gain with Clip LED
• Auto Turn-On via DC-Offset or Audio Signal Detect
• Generated +12V Remote Output
• OEM Load Detect Compatible
• Selectable Ground Isolation
• Professional Grade Panel Mount RCA’s
• Locking Detachable Power and Speaker Terminals
• Compact Aluminum Chassis w/Detachable Mounting Tabs

bassFREQ Specifications

• Output Voltage Max (RCA) ---- >10V RMS
• Output Impedance --------------- <50Ω
• Input Sensitivity (SPK/RCA) --- 2-20Vrms /0.5-5Vrms
• Max Input Voltage (SPK) ------- 40Vrms 
• Frequency Response ------------- 5-400Hz
• THD+N (SPK/RCA) ---------------- <0.1% / <0.1%
• S/N (SPK/RCA) --------------------- >118dBA / >128dBA
• Parametric (Boost/Q/Freq) ---- 0 to +12dB /1.5-5 /30-80HZ
• Low-Pass Filter --------------------- 50Hz-400Hz, -24dB/Oct
• Subsonic Filter ---------------------- 5Hz-40Hz, -24dB/Oct
• Turn-On Trigger -------------------- +12V, DC-offset & Audio Detect
• Generated +12V Output -------- >500mA