IsoAcoustics V120 50x107 Adapter – a steel mounting plate that links a speaker with a 50.8 x 107.9mm hole pattern to the V120's L-Bracket or C-Bracket.
The V120's stock bracket natively handles monitors with a rear vertical hole spacing of 70–76mm. The problem comes up with models such as several JBL, M&K Sound, and Tannoy speakers, which use a different mounting pattern – without a matching adapter plate, fitting the V120 would mean drilling new holes into the speaker cabinet, voiding the warranty and risking damage to the enclosure.
Matching a non-standard hole spacing
The 50x107 Adapter has a 2" x 4¼" (50.8 x 107.9mm) vertical hole pattern matched to the rear mounting of the brands above, and bolts directly to the speaker cabinet using the included M6 and ¼"-20 fasteners. That lets the monitor connect to the V120's L-Bracket or C-Bracket without modifying the enclosure – the speaker manufacturer's warranty stays intact.Same isolation, a different hole pattern
Since the adapter simply bolts onto the existing L-Bracket or C-Bracket system, the install keeps the V120's full isolation function – damping structural vibration and adjusting tilt up to 45° – unchanged. An engineer working with multiple speaker brands in the same room can run one V120 mounting system and swap in the matching adapter plate for each model, instead of buying a separate mounting solution per brand.KEY FEATURES
- Steel adapter plate for a 50.8 x 107.9mm hole pattern
- Mounts to the V120 L-Bracket and C-Bracket
- Includes M6 and ¼"-20 mounting bolts
- Compatible with JBL, M&K Sound, and Tannoy models
- No extra drilling into the speaker cabinet required
- Preserves the V120's full isolation performance
TECHNICAL SPECIFICATIONS
- Material: steel
- Hole pattern: 50.8 x 107.9mm (2" x 4¼")
- Speaker-side mounting: M6 and ¼"-20 bolts (included)
- Compatible brackets: V120 L-Bracket, V120 C-Bracket
- Compatible brands: JBL, M&K Sound, Tannoy
- Dimensions: 71 x 128 x 20mm
- Weight: 0.34kg



