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SUGGESTED ENCLOSURES
For those who want to build their own enclosures but don't want to go through the design process using driver
parameters, Peavey provides the following optimized designs:
For Lo Max 18:
ENCLOSURE
Small Vented Box
Medium Vented Box
Large Vented Box
1. Small Vented Box
This enclosure is as small as many 15" cabinets but has better bass performance and handles tons
of power. This design is an excellent choice for large touring systems because it can handle a large
number of enclosures at the same load-out volume.
2. Medium Vented Box
This enclosure offers an exceptional combination of deep bass extension, high power handling and
reasonable size. It is capable of extremely high output (below 35Hz) for excellent performance
3. Large Vented Box
The large vented box produces skull crushing levels of extremely deep bass and is usable to 24Hz
(-10 dB limit) at sound reinforcement SPL levels. As is typical with large vented enclosures, power
handling is reduced about 20%.
For Lo Max15:
ENCLOSURE
Small Vented Box
Medium Vented Box
Large Vented Box
1. Small Vented Box
This incredibly tiny enclosure had good bass performance and serious power capacity. An excellent
choice for very compact, high powered systems and bass guitar/keyboard enclosures.
2. Medium Vented Box
This enclosure is an exceptional compromise of deep bass extension, high power handling, and
compact size. Remarkable bass extension and power handling.
3. Large Vented Box
This large vented box generates incredibly powerful deep bass and is usable to 28 Hz (-10 dB limit)
at sound reinforcement SPL levels. As is typical with large vented enclosures, power handling is
reduced about 20%.
NET VOLUME
VENT DIAMETER
Cubic feet/liters
(qty) inches/mm
4.0 /113.3
6.0 / 170.0
8.0 / 226.6
NET VOLUME
VENT DIAMETER
Cubic feet/liters
(qty) inches/mm
2.0 /56.6
3.0 / 85
4.0 / 113.3
VENT LENGTH
inches/mm
(4) 4" / 102
12.5 / 318
(4) 4" / 102
10 / 254
(4) 4" / 102
10.625 / 270
VENT LENGTH
inches/mm
(4) 2" / 51
7.5 / 191
(4) 3" / 76
12 / 305
(4) 3" / 76
9 / 229
Vb BOX TUNING F3, -3 Db
frequency in Hz point in Hz
44
39
33
Vb BOX TUNING F3, -3 Db
frequency in Hz point in Hz
41
40
39
44
37
31
50
38
34
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