Dizengoff D4 Tube Preamp for Microphones and Instruments

BH #DID4 • MFR #D4
Dizengoff
Dizengoff D4 Tube Preamp for Microphones and Instruments
Key Features
  • Mic & DI Inputs
  • Emulates Sound of Classic UK Preamp
  • EF86 Pentode Tube for Coloration
  • Between 20 and 60 dB Gain
The Dizengoff Audio D4 is a single-channel preamp that aims to recreate the classic British console prevalent in the 1960s. The sound of the Beatles, Pink Floyd, the Zombies, and others can, in part, be traced to the preamp upon which the D4 is modeled.
Special Order
Expected availability: 2-4 weeks
On Display in Store
$799.00

Important Notice

  • This item is noncancelable and nonreturnable.
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Dizengoff D4 Overview

The Dizengoff Audio D4 is a single-channel preamp that aims to recreate the classic British console prevalent in the 1960s. The sound of the Beatles, Pink Floyd, the Zombies, and others can, in part, be traced to the preamp upon which the D4 is modeled.

Expanding on the gain settings of the original preamp, the D4 offers a range of 20 to 60 dB by means of its 12-position rotary attenuator, which is stepped for precision. You’ll also find a variable fine-trim knob; this allows you to finely attenuate the gain between 2 and 4 dB, depending on the gain’s setting. A wide, hefty sound is secured with an EF86 pentode vacuum tube, while the signal path transformers, wound in Chicago, take advantage of modern materials to achieve a fidelity commiserate with today’s standards.

For exceedingly loud signals, a 20 dB pad is provided, while condenser microphones plugged into the XLR input can be supplied with 48V phantom power through an onboard switch. You can also flip signal polarity with a 180° toggle. In addition to the XLR input, you’ll have access to a 1/4” DI input for guitars, basses, and the like.

Instead of a wall-wart, the D4 utilizes an internal power supply built around a Japanese Nippo Steel R-core power transformer, giving you efficiency and low-noise in the same package. The preamp takes up 2 RU of rack space, and provides a frequency response of 20 Hz to approximately 60 kHz.

Dizengoff D4 Specs

Tube1 x EF86 Pentode
TransformerInput Transformer: 80% nickel
Output Transformer: 50% nickel
I/O1 x XLR input
1 x 1/4" input
1 x XLR output
ControlsGain Knob: 12-position, stepped, 20 to 60 dB range
Trim Knob: Variable adjustment, 2 to 4 dB range depending on gain setting
Pad Switch: -20 dB
Polarity Switch: 180°
Phantom Power Switch: 48 V
Frequency Response20 Hz to 60 kHz
THD+NAt 1 kHz: 1%, 4 dBu gain, 10 Hz to 24 kHz bandwidth
Signal to Noise Ratio-90 dBA at maximum (+60 dB) gain, 10 Hz to 24 kHz bandwidth
PowerIEC power inlet
Rack Units2 RU
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