GRACE DESIGN SB-SUR

Product overview

The GRACE DESIGN SB-SUR is a Spacebar modular surround tree for five microphones: a front triplet and a rear pair, with every spacing set on engraved centimetre scales and every angle of incidence in 5 degree steps.

The SB-SUR system allows for mounting of five microphones. In its standard configuration three microphones are mounted as a front triplet and two as a rear pair. The front left and right microphone holder spacing can be adjusted from 6 cm to 102 cm on the E420 105 cm bar and from 6 cm to 50 cm on the E407 53 cm bar. Like every Spacebar component it is precision fabricated from machined aluminium, brass and stainless steel.

Key features

• Five microphone positions: front triplet and rear pair
• Engraved centimetre scales on every bar for precise spacing
• Angle of incidence adjustable in 5 degree increments, +90 to -90 degrees
• Front left-right spacing 6-102 cm (E420 bar) or 6-50 cm (E407 bar)
• Heavy duty stand mount adapter for 5/8" (16 mm) pin or 1-1/8" junior socket stands
• Can be hung from a ceiling with the SB-HB hanging bar (1 m line version)
• Microphone threads: standard 5/8-27 or BSW 3/8-16
• Machined aluminium, brass and stainless steel

Every spacing and angle on a scale

Each mic holder is positioned with its sight hole on the centimetre indicator circles engraved on the bars, and the SB-TJ90 tube joiners also have sight holes for centring the cross bars and measuring between cross bars and mic holders. The adjustable holders carry protractor markings from +90 to -90 degrees in 5 degree steps.

Built for a large array

The surround tree is supplied with the SB-SMA-HD heavy duty stand mount adapter, much stronger than a mount with microphone threads, for stands with a 5/8" (16 mm) pin or a 1-1/8" junior socket. For hanging installations, the SB-HB hanging bar in its 1 m line version threads into the stand mount adapter and its guide line yoke aims the array.

Modular components

Two E420 105 cm tubes, an E407 53 cm tube, two SB-TJ90 90 degree tube joiners, four SB-AMH and one SB-AMHEX adjustable mic holders form the tree. The extended SB-AMHEX keeps microphones on perpendicular bars at matching heights.

In the box

• 2 x E420 105 cm tube (7/8" OD)
• 1 x E407 53 cm tube (7/8" OD)
• 4 x SB-AMH adjustable mic holder
• 1 x SB-AMHEX adjustable mic holder, extended
• 2 x SB-TJ90 90 degree tube joiner
• 6 x E414 end plug
• 6 x H402 8-32 x 1/4" flat head screw
• 1 x SB-SMA-HD heavy duty stand mount adapter

Available versions

• Standard 5/8-27 microphone threads
• BSW 3/8-16 microphone threads (European standard)

GRACE DESIGN SB-SUR: frequently asked questions

How many microphones does the SB-SUR hold?

Five: three as a front triplet and two as a rear pair in the standard configuration.

How far apart can the front left and right microphones be?

From 6 cm to 102 cm on the E420 105 cm bar, or 6 cm to 50 cm on the E407 53 cm bar.

Can it be hung?

Yes, with the SB-HB hanging bar in its 1 m line version.

Which threads are available?

Standard 5/8-27 or BSW 3/8-16 on all microphone mounts.

Where can I buy the GRACE DESIGN SB-SUR in India?

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

Workflow 1: Five-channel surround recording

Engineers recording music in surround.

Connections

Setup

1. Assemble the bars with the tube joiners.
2. Set the front triplet and rear pair spacings on the scales.
3. Set every angle in 5° steps.
4. Raise the stand and record.

Tip: Note all scale readings for repeat sessions.

Workflow 2: Concert hall surround

Recordists capturing a hall's ambience.

Connections

Setup

1. Place the tree at the chosen position.
2. Adjust the rear pair spacing.
3. Aim the microphones.
4. Record.

Tip: The engraved scales make adjustments precise.

Workflow 3: Ceiling-hung surround array

Venues with fixed recording positions.

Connections

Setup

1. Thread the hanging bar into the adapter.
2. Fit the s-hooks to the end plugs.
3. Attach the yoke.
4. Aim the array.

Tip: Adjust the yoke lines through the shrink tubing.

Workflow 4: Narrow front triplet

Smaller ensembles or rooms.

Connections

Setup

1. Use the 53 cm bar for the front.
2. Set 6-50 cm spacing.
3. Set angles.
4. Record.

Tip: Swap bars to change the available spacing.

Workflow 5: Matching microphone heights

Arrays with microphones on perpendicular bars.

Connections

Setup

1. Fit the extended holder.
2. Check the heights.
3. Lock the clamping handles.
4. Set the angles.

Tip: The 38 mm extension matches the vertical positions.

Workflow 6: Repeatable broadcasts

Recurring concert broadcasts.

Connections

Setup

1. Record all scale readings.
2. Rebuild at the next event.
3. Set the same readings.
4. Record.

Tip: Spacing and angle scales are engraved, not printed.