Peavey SP 1X User Manual

SP™1X
SPECIFICATIONS
Frequency response, 1 meter on­axis, swept-sine in anechoic environment:
56 Hz to 19 kHz (±3 dB)
42 Hz
Power handling:
Full Range:
700 W continuous 1,400 W program 2,800 W peak
Low Frequency Section:
500 W continuous 1,000 W program 2,000 W peak
High Frequency Section:
80 W continuous 160 W program 320 W peak
Sound pressure level, 1 Watt, 1-meter in anechoic environment:
Full Range:
99.0 dB SPL, (2.83 V input)
Low Frequency Section:
100.0 dB SPL, (2.83 V input)
High Frequency Section:
110.0 dB SPL, (2.83 V input)
Maximum sound pressure level (1 meter):
Full Range:
127 dB SPL continuous 133 dB SPL peak
Low Frequency Section:
127 dB SPL continuous 133 dB SPL peak
High Frequency Section:
129 dB SPL continuous 135 dB SPL peak
Radiation angle measured at -6 dB point of polar response:
80ohorizontal by 40overtical
Transducer complement:
Low Frequency Section:
1x 15 in. woofer, vented 1508-8 HE BWX
High Frequency Section:
1x 1.6 in. exit/100 mm voice coil compression driver on CD horn 44XT (w/o adapter) on a CH 7 constant directivity horn
Box tuning frequency:
Low Frequency Section:
50 Hz
Crossover frequency (internal passive):
Low Frequency - High Frequency:
1,400 Hz
Recommended active crossover frequency region and slope:
Low Frequency - High Frequency:
1600 Hz at 12 dB/octave, plus CD horn EQ
Time offset:
Low Frequency:
Delay 0.67 ms
High Frequency:
0.00 ms
Impedance (Z):
Full Range:
Nominal: 8.0 Ω Minimum: 6.4 Ω
Low Frequency:
Nominal: 8.0 Ω Minimum: 6.9 Ω
High Frequency:
Nominal: 8.0 Ω Minimum: 7.1 Ω
Input connections:
2x 1/4 in. phone jack and 1x Neutrik
®
NL4 Speakon®(bi-amp only)
Enclosure materials and finish:
3/4" OSB finished in black carpet
SPECS
PEAVEY ELECTRONICS
2
Mounting provisions:
This unit is not designed for overhead suspension. SA-1 stand mount adaptor built-in, and four large rubber feet on bottom for floor use.
Dimensions (H x W x D):
Front:
33.38 in. x 21.19 in. x 22.75 in. 848 mm x 538 mm x 578 mm
Rear:
33.38 in. x 13.88 in. x 22.75 in. 848 mm x 352 mm x 578 mm
Net Weight:
100 lbs. (45.5 kg)
Features
• 1,400 W program, 2,800 W peak
• Sound Guard
44 tweeter protection
• 15" BWX Black Widow®4" VC woofer
• 44XT™4" titanium compression
driver
• Trapezoidal enclosure design
• SA-1 stand adaptor
Description
The latest version of the SP™ 1 has the new BWX high power Black Widow woofer incorporated, as well as a very nice looking cabinet design. The SP 1X is a two-way speaker system comprised of a 15" Black Widow BWX woofer with a Kevlar
®
impregnated cone, and a 44XT compression driver loaded onto a CH®7 constant directivity horn.
The SP 1X has a trapezoidal shaped enclosure, which reduces the build-up of standing waves inside the enclosure, which minimizes mid-bass and mid-range colorations due to the cabinet. It is constructed of 3/4" void-free plywood and is covered with a durable black carpet. The enclosure corners are reinforced with polymer caps, and a black powder-coated expanded metal grille covers the lower half of the system to protect the woofer from external damage. An SA-1 stand mount adaptor is built-in for ease of speaker stand use.
The two-way system is comprised of a 15" Black Widow BWX woofer with a Kevlar impregnated cone, and a water­resistant treated cone and dust cap for superior environmental stability. Capable of over 500 W of continuous power handling (AES Std 2-1984), the woofer can handle a lot of sheer power. The high frequencies are handled by a 44XT 4" titanium diaphragm compression driver, utilizing ferrofluid cooling, coupled to a
CH 7 constant directivity horn. This horn has a smooth, even response with good pattern control. The 44XT driver features the Radialinear Planar Phase Correction System, under US Patent 6,064,745, which provides smoother and extended high frequency response.
Input connection to the system is made via two 1/4" phone jacks in parallel, and a 4-pin Neutrik
®
switching jack is provided for bi-amping flexibility while maintaining superior signal integrity. The internal passive crossover features Sound Guard 44 tweeter protection circuit, an advanced topology crossover with high performance components, to provide high power handling and reliability. Peavey’s proprietary high-frequency driver protection circuitry, Sound Guard, provides long and medium-term driver overload protection when the system is used full­range, or when it is bi-amped, without impairing musical transients or dynamics. The crossover provides driver roll-off and protection, as well as driver EQ for the woofer and horn, the sum total is a clean, clear and smooth response. High-quality, reliable crossover components include polypropylene capacitors, and high current inductors. The optimal integration of the crossover with the selected drivers results in a smooth frequency response from 56 Hz to 19 kHz. A crossover EQ switch is
provided to tailor the response in the mid­range, providing a nominally flat frequency response position, and an EQ’d position that pulls the mids back to help keep bright rooms from overloading, or to help achieve a mellower voicing for those applications that prefer it, such as DJ use.
Despite its compact dimensions for a 15" based enclosure with a 2" throat compression driver, this system can put out some very serious sound levels, and take 1400 Watts program of clean amplifier power, resulting in precise coverage with excellent clarity and high reliability.
Frequency Response
This measurement is useful in determining how accurately a given unit reproduces an input signal. The frequency response of the SP 1X is measured at a distance of 1-meter using a 1 Watt (into the nominal impedance) swept-sine input signal. As shown in figure 1, the selected drivers in the SP 1X combine to give a smooth frequency response from 56 Hz to 19 kHz.
Power Handling
There are many different approaches to power handling ratings. Peavey rates this loudspeaker system’s power handling using a full-range form of the AES Standard 2-1984. Using audio band 20 Hz
Amplitude Response (1W 1m On-Axis)
110
100
90
80
dB SPL (re 20 Pa)
70
60
20 50 100 200 500 1k 2k 5k 10k 20k
Figure 1
Frequency (Hz)
Impedance
100
50 30
20
Z
(
)
10
5 3
2
Switch Position
Normal EQ
1
20 50 100 200 500 1k 2k 5k 10k 20k
Figure 2
Frequency (Hz)
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