เครื่องขยายเสียง JBL รุ่น VMA1240

มิกเซอร์แอมป์ JBL VMA1240

แบบ 70V/100V 240 วัตต์ 5 Input/1 Output

JBL VMA 1240
Mixer Amplifiers

น้ำหนัก
11.6 กก.

ขนาด
415 × 432 × 88 มิลลิเมตร

The JBL VMA Series is a cost-effective line of Mixer/Amplifiers with low impedance functionality (4Ω, 8Ω) and high impedance 70V and 100V output. They are designed with convenient and flexible features to be used by commercial integrators worldwide, ideal for emerging markets.

คุณสมบัติ
5 inputs with 1 output of 60, 120, or 240-watts of power
Independent bass and treble controls for each output channel
100V and 70V output, or 4Ω/8Ω
Paging Chime, and Priority muting
Works with JBL CSR-V wall controllers
Balanced mic/line inputs; RCA (.775V) inputs
Rack mounting hardware included

Max Output Power per Channel
into 4 Ω or 8 Ω; 1kHz, ≤ 0.5% THD - VMA160: 60W VMA1120: 120W VMA1240: 240W
Insertion Loss
(70V & 100V outputs) 1dB maximum
Number of Inputs
5
Number of Outputs
1
Tone Controls
(Bass and Treble non-detented potentiometers on each channel) Bass +/-14dB @ 50Hz; Treble +/-14dB @10kHz
Input Sensitivity
(to obtain full rated power into 8 Ω load) Mic Input: 5.5mVRMS Line Input: 1.3VRMS RCA Input (stereo in): 130mVRMS
Frequency Response
(measured at 2.83VRMS into rated load impedance at any output) 4/8 Ω Output: 20Hz - 20kHz, +/-2dB; 70V/100V Outputs: 80Hz - 15kHz +/-3dB
Total Harmonic Distortion (THD)
(measured at 2.83VRMS into rated load impedance at any output) Power Amp Output: <0.5%, 20Hz - 20kHz
Signal to Noise Ratio
(Ref. Rated Power, mixer levels @ min., master volume @ max. A-weighted) >76dB
Input Impedance
(nominal) Mic: 400 Ω Line: 20 kΩ (balanced) RCA: 50 kΩ
Phantom Power
27VDC
Crosstalk
(reference rated power, volume at mid position, 1kHz) -70 dB
Nominal AC Line Voltages
100V, 120V, 220V, 220-240V, 50/60 Hz
Minimum Load Impedance
(Low Impedance Output, 70V Output, 100V Output) VMA160: 4 Ω, 80 Ω,160 Ω VMA1120: 4 Ω, 40 Ω, 80 Ω VMA1240: 4 Ω, 20 Ω, 40 Ω
Operating Temperature/Humidity
0°C to 35°C @ 95% R.H. (non-condensing)
Storage Temperature
-20°C to 85°C
Net Weight
VMA160: 19.4 lb (8.8 kg) VMA1120: 20.2 lb (9.2 kg) VMA1240: 25.5 lb (11.6 kg)
Dimensions
Width: 17.0 in. (432 mm) Depth: 16.3 in. (415 mm) Height: 3.5 in. (88 mm)
Shipping Weight
VMA160: 24.6 lb (11.2 kg) VMA1120: 25.5 lb (11.6 kg) VMA1240: 30.8 lb (14 kg)