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Radial Engineering TwinLine Dual Amp Effects Loop Interface

  • Dale #:

    RADI-TWINLINE
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Description

The Radial Twinline is a unique device that enables a guitarist to share effects pedals between two amps when using the amplifier's built-in (rear-panel) effects loops. Consider the problem: Many guitarists prefer to use the effects loop in the amplifier to insert pedals into their signal chain. ... Read More

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Description

The Radial Twinline is a unique device that enables a guitarist to share effects pedals between two amps when using the amplifier's built-in (rear-panel) effects loops. Consider the problem: Many guitarists prefer to use the effects loop in the amplifier to insert pedals into their signal chain. This is particularly useful with delay pedals where applying echo to the signal after the guitar amp's preamp distortion as this results in more distinctive notes and more pleasing sonic results. A problem arises when using two amps on stage: how do you toggle the pedalboard between the two amps? The guitar player must either duplicate his pedal setup (one for each amp) or completely change his setup by connecting the pedals to an AB switcher and then connect the pedals to the front panel inputs of the amps.

Features:

  • Shares your pedalboard between two amp loops
  • Lets you optimise the signal path for each amp
  • Works with pedals or balanced studio processors
  • Can be remotely controlled using a footswitch

The Twinline can be thought of as a pedalboard switcher that lets you remotely toggle the effects from one amp's effects loop to the other, thus allowing the guitarist to share his pedalboard between the two amps. To accomplish this, the Twinline is equipped with two amplifier effects loop circuits - each with separate send and receive levels to optimize the signal path for each amp's effects loop. There is also a third effects loop for the pedalboard. This features a choice of unbalanced 1/4" connectors for typical guitar pedals or balanced XLR connections for studio effects. A remote control input is used to toggle the active amplifier's effects loop via a contact closure using a MIDI system or latching footswitch. When used with the optional Radial JR2 remote, this adds the ability to bypass the effects completely.

As with all Radial products, the Twinline is made from heavy duty 14 gauge steel for ultimate durability and maximum shielding against stray magnetic fields while the book-end design creates a protective zone around the controls and switches. Inside, 100% discrete class-A electronics deliver optimal sonics as it buffers the circuit while transformer isolation eliminates troublesome ground loops that can introduce hum and buzz if left unchecked.

The Radial Twinline brings forth a unique solution to a long standing problem.

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Product Specs

Audio circuit type:  Class-A FET with transformer isolation
Dynamic range:  105dB 
Gain - from amp jack to EFX send:  Variable from -2.7dB ~ +3.6dB
Equivalent input noise:  -103dB
Noise floor:  -92dBu
Intermodulation distortion:  0.01%
Common mode rejection ratio:  91dB @ 55Hz
Maximum input - from amp jack:  +25dBu 
Maximum input - FX input:  +8dBu
Total harmonic distortion:  0.005% @ 1kHz
Input impedance - from amp:  10KΩ 
Output impedance - to amp:  2200Ω
Input impedance - FX return:  1MΩ 
Output impedance - FX send:  1KΩ
Unity gain control position:  About 10:00 o'clock on send & return EFX
Features   
Controls: Send & return gain for amps A & B
Switches:  180° polarity reverse on each effect loop
Input/output connections:  Balanced ¼" TRS or unbalanced ¼"
Ground lift:  Both inputs and on the FX loop 
Remote controls:  Slingshot contact closure in/out
General   
Construction:  14 gauge steel chassis & outer shell
Finish: Durable powder coat
Size: (W x H x L) 4.3" x 1.9" x 5.8" (109 x 48 x 147mm)
Weight:  2.4lb
Shipping size: (W x H x L) 4.7" x 2.6" x 11.6 (119 x 66 x 294mm)
Shipping weight: 3.4lb
Power:  15V 100mA Unregulated/Center Pin Positive
Conditions: For use in dry locations only between 5°C and 40°C
Warranty:  Radial 3-year, transferable

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