4.9ARMS
Designed for simple discreet installation, the CLS2 is one of the most cost effective and capable solutions in its class. The amplifier is compact, yet the most powerful unit available designed specifically for wall mounting. All connections and controls are secured behind a tamper resistant, hinged, detachable cover. Combined with its small size, the range of mounting and cabling options ensure that installation is convenient and tidy in any environment. Input options are extensive, with four independent inputs for balanced microphone, balanced and unbalanced line, low impedance and 100V – line speaker systems, plus priority alarm, doorbell or telephone connections.
Backed by Ampetronic’s standard 5 year warranty and comprehensive support services, the CLS2 is truly fit and forget.
Applications include
- Community centres
- Board rooms
- Churches & places of worship
- Interview rooms
- Meeting rooms
- Classrooms
The CLS2 enclosure is designed for simple, permanent installation, with secure lid protecting connections and controls, while leaving operation indicators visible. The case is designed to make access simple, and to ensure the amplifier can be installed in the most constrained spaces.
Mounting
Designed for vertical panel mounting using 4 screws (6 holes provided). Template for screw placements provided. The CLS2 is compact enough to fit on a 1U rack tray with feet removed.
Enclosure access
Hinged lid, secured by 2 Phillips PH2 screws. Lid can be removed completely if required, for ease of access, or if there is no room to hinge the lid forwards.
Cable routing
Knock-outs (diameter 20mm) are provided for routing cables into the enclosure. 2 on the top edge, 4 on the rear face, 4 on the bottom edge, providing excellent installation flexibility.
Cable connections
All input cable connections are made with screw terminals mounted on one side of the PCB. Mains power connections are made to a chassis mounted screw terminal block. Loop connection is made to a screw terminal pair mounted on the PCB. Cable connections are illustrated on a detailed label on the case interior.
Indicators
3 LED indicators are visible with the case open or closed:
- AGC Amber LED lit when input signal is activating the automatic gain control
- Current Green LED lit when current is running in the loop
- Power Green LED lit when the unit has power
Controls
Five controls are located to be accessed only with the lid open, all screwdriver adjustable.
- Level controls for inputs 1, 2, 3 and 4
- Metal loss correction
- Loop drive current
- Quick and simple to install
- Area coverage to >400m2
- Highest power loop driver in class
- 4 Independent configurable inputs
- 12V DC output to power external accessories and third-party interfaces
- Wall mounted
- Metal Loss Correction
- 5 Year warranty
- Cabling and controls behind tamper resistant cover
- 2 Priority alarm inputs
- Free Technical support
Perimeter Loops – Area Coverage (maximum)
The CLS2 is designed for perimeter loop applications.
Room aspect ratio 1:1 2:1 3:1
Maximum area coverage m2 250 310 400
For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required:
- The loop is 1-2m above or below the receiver height
- There are no metal structures in the plane of the loop
- There is sufficient voltage to drive the cable length – check table below.
Maximum Cable Length
The CLS2 is designed for SINGLE TURN loops for optimum audio quality:
- Loops with DC resistance from 0.2Ω
- Impedance up to a maximum of 1.3Ω
Maximum cable length is dependent on cable type and on the application.
| Cable type |
Maximum Cable Length (m) |
|
Normal Use |
Transient Speech |
| 1.0mm2 copper |
49 |
57 |
| 2.5mm2 copper |
67 |
85 |
| 4.0mm2 copper |
70 |
91 |
| 1.8mm2 flat copper tape |
87 |
101 |
CLS2 Specifications
INPUTS
| Input 1 |
Balanced Mic, balanced or unbalanced line
Input impedance 10kΩ per side
Min level (MIC / Line -73dBu / -31dBu
Max level (MIC / Line) -37dBu / +5dBu
Phantom voltage MIC only +12V |
| Input 2 |
As input 1 mic level
Balanced mic
Input impedance 10kΩ per side
Min level (MIC / Line -73dBu / -31dBu
Max level (MIC / Line) -37dBu / +5dBu
Phantom voltage MIC only +12V |
| Input 3 |
Balanced or unbalanced line, expansion port
Input impedance 1MΩ per channel
Min level -33dBu
Max level +3dBu
12V DC to power external accessories and third-party interfaces (100mA max) |
| Input 4 |
Isolated 100V line or low impedance mono or stereo speaker
Input impedance 100V Line / spkr 120kΩ / 7.8kΩ
Min level 100V Line / spkr +14dBu / -9dBu
Max level 100V Line / spkr >+47dBu / >+27dBu |
| AC power input supply |
230V 30W 45-65Hz
120V option available (ETL Approved)
Connected via chassis mounted screw terminal block |
| Input fuse – 230V
Input fuse – 120V |
T250mA
T500mA |
OUTPUTS
| Drive voltage |
>7.1Vrms – 10.0Vpk |
| Drive Current |
Continuous 1kHz sine wave >4.9Arms 7.0Apk
Short term peaks >7Arms 10Apk |
| Minimum Loop Resistance |
0.2Ω |
| Maximum Loop Impedance |
1.3Ω |
THERMAL HEAT CHART
|
|
|
|
Idle |
1/6 peak Output Current (Speech) |
1/3 peak Output Current (Pink noise) |
Full Power |
| Driver |
Channels |
Current (ARMS) |
Load Resistance (Ohms) |
AC In (W) |
BTU |
AC In (W) |
BTU |
AC In (W) |
BTU |
AC In (W) |
BTU |
| CLS1 |
1 |
3.5 |
1.0 |
4 |
14 |
15 |
47 |
27 |
77 |
45 |
111 |
| CLS2 |
1 |
4.9 |
1.0 |
5 |
17 |
19 |
58 |
35 |
91 |
63 |
131 |
AUDIO SYSTEM
| Frequency response |
80Hz to 6.3kHz ±3dB |
| Distortion |
THD+N |
| Automatic Gain Control |
(AGC) Optmised for speech. Dynamic range >36dB |
| Metal loss correction |
(MLC) 0 to 3dB per octave frequency correction (1kHz remains constant). Control mounted on PCB. |
PHYSICAL
| Cooling |
Natural convection |
| Environment |
IP20, -10ºC to +40ºC |
| Dimensions |
W, H, D: 200mm, 200mm, 44mm |
| Weight |
1.8kg |
| Mounting |
Wall mounting, secured by 4 screws |
DOWNLOADS
UP36401-10_CLS2 Datasheet
UP16401-13-CLS2 Handbook
UP46402 CLS mounting template
