GRACE DESIGN E420

Product overview

The GRACE DESIGN E420 is the 105 cm bar of the GRACE DESIGN Spacebar modular microphone positioning system: a 7/8 in diameter tube with a laser etched centimetre scale that reads 0 to 105 cm from left to right and 105 to 0 cm from right to left.

Spacebar mic holders, the SB-TJ90 90 degree tube joiner and the stand mount adapters clamp onto the bar wherever they are needed, and their sight holes line up with the centimetre indicator circles engraved on the tube. Microphone spacing can be set precisely and repeated from session to session. Three E420 tubes with an E418 joiner give the 2 metre spacing of the SB-DT tree array, and one E420 is the bar of the SB-100 1 metre AB bar.

Key features

• 105 cm Spacebar tube, 0.875 in outside and 0.625 in inside diameter
• Laser etched centimetre scale reading 0 to 105 cm from left to right and 105 to 0 cm from right to left
• Accepts all Spacebar modular mic holders, the SB-TJ90 tube joiner and the stand mount adapters
• Takes E414 end plugs at each end; joins to other 7/8 in tubes with the E418 tube joiner
• Part of the standard SB-SUR-HD surround tree, SB-3D11 cube, SB-DT tree array and SB-100 AB bar
• Spacebar system parts are machined from aircraft aluminium, brass and stainless steel

Compatible with

• GRACE DESIGN Spacebar modular mic holders (SB-AMH, SB-AMHEX, SB-MH, SB-AMHRA)
• SB-TJ90 90 degree tube joiner, SB-SMA and SB-SMA-HD stand mount adapters
• E414 tube end plugs and the E418 tube joiner

In the box

• 1 x E420 105 cm bar

GRACE DESIGN E420: frequently asked questions

How do I set microphone spacing on the bar?

Clamp the mic holder on the tube and line up its sight hole with the centimetre indicator circles of the engraved scale, then tighten the clamping handle clockwise. The clamp is very secure and needs no extreme torque.

How many E420 bars are in the standard arrays?

The bills of materials list two in the SB-SUR surround tree, eight in the SB-3D11 cube, three in the SB-DT tree array and one in the SB-100 AB bar.

Where can I buy the GRACE DESIGN E420 in India?

The GRACE DESIGN E420 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.

Workflow 1: 1 metre AB stereo bar

Engineers recording with a spaced pair of omnidirectional microphones.

Connections

Setup

1. Clamp the SB-SMA at the centre of the bar.
2. Set the holders to the required spacing using the 0-105 cm scale.
3. Fit E414 end plugs and tighten the clamping handles.

Tip: Read the scale from either end: it runs 0 to 105 cm in both directions.

Workflow 2: 2 metre bar with the E418 joiner

Large ensembles and very wide stereo spacing.

Connections

Setup

1. Slide the E418 into one tube and fix it with an 8-32 x 1/4 in flat head screw.
2. Slide the second tube over the joiner and fix the other screw.
3. Mount the bar at its balance point and set the holders.

Tip: An SB-100 with one more E420 and an E418 becomes an SB-200 2 metre stereo bar.