B² Audio REF SQ61

This sophisticated speaker system combines powerful, musical 6.5-inch bass-midrange drivers with high-precision 1-inch ceramic dome tweeters and is tuned to reproduce a harmonious and coherent sound image with pinpoint accuracy. The REFSQ61 is designed for those who demand exceptional realism, low distortion and linear dynamics in every frequency range.

Featuring a multi-layer carbon fiber cone, FEA-optimized neodymium magnets and gold-plated CNC-machined aluminum baskets, this set combines stunning aesthetics with uncompromising performance. Whether you're running a purely passive system or driving it with a DSP, the REFSQ61 offers flexibility, control and the unmistakable precision of the B2 Audio Reference Series.

Audiophile reference quality
Experience breathtaking sound with the B2 Audio REFSQ61, designed for pure sound quality and as a premium everyday setup.

High-quality construction
Multi-layered 6.5" carbon fiber mid-woofers deliver a tight, dynamic mid-bass, paired with high-precision 1" ceramic dome tweeters.

Bi-amp crossover
Includes a passive 2-way crossover for precise tuning and improved control; perfect for DSP or passive SQ systems.

High-quality materials
Equipped with neodymium motors, gold-plated connectors, CNC-machined aluminum baskets and vented pole pieces for superior efficiency.

Competition-grade performance
Designed for audiophile competitors seeking unsurpassed sound accuracy, spatiality and musical detail.


Features:
✓6.5" multi-layer carbon fiber diaphragm for stability, control and musicality
✓ 1" ceramic dome tweeter for ultra-precise and sensitive high frequencies
✓ FEA-optimized neodymium motors for precision and efficiency
✓ Non-conductive TIL voice coil former for damping control
✓ Gold-plated top plates, CNC machined aluminum baskets and trim rings
✓ Vented baskets and pole pieces for thermal and acoustic efficiency
✓ Designed for high quality 2-way SQ systems or DSP systems.

Crossover configuration
This set includes a 2-way bi-amping crossover that allows you to drive woofers and tweeters on separate amplifier channels - for more control and more precise sound tuning. Ideal for sound enthusiasts seeking exceptional sound imaging and balance. Use them in a traditional passive configuration or combine them with a DSP for flexible active sound customization.

Component specifications

6.5" bass-midrange driver:
Maximum power: 100 W
RMS power: 70 W
Impedance: 4 Ohm
Voice coil: 1.4" (35.5 mm)
Diaphragm: Multi-layer carbon diaphragm
Magnet: High density ferrite
Frequency response: 50 Hz - 10 kHz
Sensitivity: 87.6 dB
Unit weight: 3.74 lbs (1700 g)

1" ceramic dome tweeter:
Maximum power: 75 W peak / 25 W RMS
Impedance: 3.0 Ohm
Voice coil: 1.0" (25.4 mm)
Magnet: Internal double neodymium magnet
Dome material: Ceramic
Frequency: up to ~ 20 kHz
Sensitivity: 86.0 dB
Unit weight: 150 g


Dimensions

Woofer
Mounting depth: 2.93" (74.5 mm)
Cut-out diameter: 5.31" (135 mm)
Overall diameter: 6.5" (165 mm)

Tweeter
Mounting depth: 1.1" (28 mm)
Cut-out diameter: 1.79" (45.4 mm)
Overall diameter: 2.24" (57mm)

Crossover:
Length: 4.75" (120mm)
Width: 4.75" (120mm)
Height: 1.25" (32mm)

Scope of delivery includes:
(2) 6.5" woofers
(2) 1" ceramic dome tweeters
(2) 3-way passive crossovers