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Cornish LD-3™ (full size version)

Cornish LD-3™ (full size version)

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Full size version--runs on power supply OR battery

Cornish's low noise discrete component class A pre-amplifier has been specifically designed to overcome the problems often encountered with amplification of electric instruments fitted with magnetic transducers. The usual impedance mismatch between pickup and subsequent equipment has been completely eliminated with the introduction of the LD-3™ line driver/mute/tuner feed unit.

  • cornish-ld3-big-1
  • cornish-ld3-big-2

Cornish's low noise discrete component class A pre-amplifier has been specifically designed to overcome the problems often encountered with amplification of electric instruments fitted with magnetic transducers. The usual cause of these problems is the mismatch of the impedance in the electrical circuit between the pickup and subsequent equipment. This mismatch has been completely eliminated with the introduction of the LD-3™ line driver/mute/tuner feed unit.

The input impedance is identical to a high quality tube amplifier and Cornish's class A pre-amplifier also features a highly effective RF filter which will help prevent interference from nearby radio transmitters.

The pickup output should be connected directly to the line driver input with a short, low loss, screened cable. The line driver output can now be fed to any effects or volume pedals (if used) and then on to the amplifier, using fully screened cables, of any length, throughout.

Also fitted is an auxiliary output, which may be used to feed a signal to a tuner. This signal is identical to the main Output signal but has additional isolation components to ensure that interference signals, which may be generated in a tuner, are not fed back to the amplifier. The tuner feed signal is permanently active.

The heavy-duty footswitch controls the signal sent to the main OUTPUT jack and provides a complete shutdown of the audio signal path when set to MUTE.

DETAILS:
The LD-3™ features easy battery is replacement via the removable “drawer.” The battery is switched on when you insert the “INPUT/PWR ON” jack and to ensure long battery life unplug this lead when the unit is not in use. If the unit is not to be used for a long length of time, or is to be adapter powered, it is recommended that you remove the battery. Preferred battery types are MN1604.

Also fitted is an input for a DC adaptor: the size of the coax connector is 5.5/2.1mm and the center pin is negative (-VE). The adapter should be noise free, fully stabilized at 9V DC and capable of supplying 20mA. Cornish recommends the use of a Voodoo Lab Pedal Power 2 Plus adapter as meeting the above criteria and cannot accept any liability for damage caused to this unit by the use of, or to, any other type of DC adapter. An adapter proving an output of an AC voltage should NOT be used. If only a single unit is to be powered the BOSS PSA series may be more cost effective and is also recommended.

IMPORTANT NOTES:
This unit is capable of being used with any stabilized, noise free supply voltage between 9Vdc and 24Vdc. Using a 9Vdc adapter the performance will be identical to when Battery powered. Using a fully smoothed and regulated AC/DC adaptor with an output voltage of 24vDC Maximum, and capable of supplying 20mA, the signal performance of the unit will be as show in the specs.

Please do not use an adaptor with a higher output voltage than the specified 24vDC maximum, or of reversed polarity, as it may damage the LD-3™. An adapter with an AC voltage output should NOT be used as it will permanently damage the LD-3™. Damage caused by the use of the incorrect adapters mentioned above will not be covered under the terms of the Cornish warranty.

ABOUT CORNISH PEDALS
Pete Cornish, the creator of integrated guitar effects and amp routing systems for the worlds best known performers has revolutionized the  way music is performed. Pete's creations allow you to "Free The Tone" and enjoy the artistry of music making both live on stage and in the studio. From integrated effects boards to power distribution units, guitar cables to custom speaker cabinets, Pete's individually handcrafted products are rugged, dependable and free from ground loop noise, using only the best available components for maximum durability.

Purposeline driver, tuner feed and mute
Constructionhand built, hand wired, hand tested
Footswitchheavy duty all-metal
LEDsdaylight visible
Dimensions100mm x 120mm x 36mm
Warranty1 year, non-transferable
Input Impedance, 9xDC supply1 Mohm
Input Impedance, 24vDC supply1 Mohm
Minimum Output Load, 9xDC supply10 Kohm
Minimum Output Load, 24vDC supply10 Kohm
Maximum Output, 9xDC supply+9dBm/2.2Vrms/6.25 v P/P
Maximum Output, 24vDC supply+18dBm/6.2Vrms/17.6v P/P
Output Noise, 9xDC supply-110dBm (10KHz B/W)
Output Noise, 24vDC supply-110dBm (10KHz B/W)
Frequency Response, 9xDC supply+/- 1dB 15 Hz to 20 KHz
Frequency Response, 24vDC supply+/- 1dB 15Hz to 40KHz
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