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QS_BASSO21t_EN_

v3.3

BASSO

21t

 21˝ High Performance Band-Pass Touring Subwoofer

QuickStart Guide

Many key factors are to be considered when configuring the subwoofer section 
of a loudspeaker system to perfectly match each application: size/weight, 
logistic and operational setups, SPL needs, LF extension, cost limitations, as well 
as sound engineer preferences (depending on different the type and size of the 
event) or audio program characteristics and regional style taste for subwoofer 
mixes.

BASSO

 Series models allow the user to choose the most adequate subwoofer 

for any given situation from within a family of products with common finish, 
design solutions and performance philosophy as well as shared rigging and 
transport accessories.

BASSO

21t is a 21˝ subwoofer that has been designed to deliver high SPL levels 

and efficiency out of a medium format enclosure delivering serious power 
density.

The 5th Order Band-Pass design together with the premium-quality European 
21˝ woofer deliver serious SPL with maximum impact in the 50 to 100 Hz octave 
and the extended sub range of 30 Hz allows for Infra extension application into 
any system.

BASSO

21t features four integrated handles and two 35 mm pole mount sockets 

for vertical and horizontal set-ups. 

BASSO

21t is compatible with optional 

BASSO

 

rigging frames for ground-stacked configurations. Optional wheels kit is also 
available.

+/- 1 

Subwoofer Signal

+/- 2 

Parallel Signal

NL-4 PINOUT:

SYSTEM CONFIGURATION AND SETTINGS

RECOMMENDED SETTINGS

BASSO

21t back panel is fitted with a pair of Neutrik NL-4 connectors in 

parallel for straightforward, flexible installation setup.

Type

Freq

Q

Gain

Bell

54 Hz

7.0

-2.10

Bell

132 Hz

3.0

-3.30

Low Pass

87 Hz

0.8

--

Bell

42 Hz

3.0

-0.30

HPF:

20 Hz

Butterworth 24dB

LPF:

65 Hz

Butterworth 24dB

LPF@ 80 Hz

Type

Freq

Q

Gain

Bell

65 Hz

5.3

-4.30

Bell

132 Hz

3.0

-2.00

Low Pass

101 Hz

0.8

--

Bell

50 Hz

3.0

-0.40

HPF:

20 Hz

Butterworth 24dB

LPF:

77 Hz

Butterworth 24dB

LPF@ 100 Hz

Type

Freq

Q

Gain

Bell

73 Hz

3.4

-4.70

HPF:

20 Hz

Butterworth 24dB

LPF:

82 Hz

Butterworth 24dB

LPF@ 120 Hz

BASSO

21t

INPUT

LINK

PRODUCT OF EUROPE

Made in Spain

Designed, engineered

and manufactured by

IDEA in Cedeira (Galicia)

8 Ω

81 kg / 178.5 lbs

1400W RMS

The installation of this product 

should be implemented by 

qualified professionals 

following safe practices and 

local regulations.
Refer to the owner's manuals 

for rigging instructions, 

system components and 

suspension hardware intended 

for this product.

NL-4 PINOUT

Subwoofer Signal
Parallel Signal

Summary of Contents for BASSO Series

Page 1: ...SO21t features four integrated handles and two 35 mm pole mount sockets for vertical and horizontal set ups BASSO21t is compatible with optional BASSO rigging frames for ground stacked configurations Optional wheels kit is also available 1 Subwoofer Signal 2 Parallel Signal NL 4 PINOUT SYSTEM CONFIGURATION AND SETTINGS RECOMMENDED SETTINGS BASSO21t back panel is fitted with a pair of Neutrik NL 4 ...

Page 2: ...ystem RS BASSO L Wheels WH 04 35 mm Pole K M 21336 TECHNICAL DATA TECHNICAL DRAWINGS 950 mm 900 mm 600 mm BASSO21t INPUT INPUT LINK LINK PRODUCT OF EUROPE PRODUCT OF EUROPE Made in Spain Made in Spain Designed engineered Designed engineered and manufactured by and manufactured by IDEA in Cedeira Galicia IDEA in Cedeira Galicia 8 Ω 81 kg 178 lbs 1500W RMS The installation of this product The instal...

Page 3: ...fied and authorized personnel No user serviceable parts inside Only use accessories tested and approved by IDEA and supplied by the manufacturer or an authorized dealer Installations rigging and suspension operations must be done by qualified personnel Only use accessories specified by IDEA complying with maximum loads specifications and following local safety regulations Read the specifications a...

Page 4: ...om product detail basso21t www ideaproaudio com IDEA is always in pursuit of better performance greater reliability and design features Technical specifications and minor finish details may vary without notice in order to improve our products 2020 I MAS D Electroacústica SL Pol A Trabe 19 20 15350 Cedeira Galicia Spain ...

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