TOA MIXER AMPLIFIERS - Digital

A-2030DD, A-2060DD, A-2120DD, A-2240DD

This range of Class D digital mixer amplifiers offer three balanced inputs; one via 5-pin DIN with optional phantom power, and two via single -60dB, 600ohm balanced microphone 6.35mm jack sockets, along with auxiliary inputs on dual RCA (phono). The range of amplifiers provide 30, 60, 120, or 240watts of output into a mono 100V line. 21V DC phantom power can be applied to channel one, and mute switching can be applied by shorting pin four and pin five of the 5-pin DIN connection. A record output is provided via 600ohm, unbalanced RCA (phono) connections.

MIC 1 channel has priority functionality which reduces the volume of all other inputs up to 30dB by setting the rear-mounted, rotary, mute adjust control. Bass and treble tone controls, set at +/-10dB at 100Hz and +/-10dB at 10kHz, help to attain the most preferred sound output. Visual LED indicators include power, signal, and peak.

Dimensions (WxHxD): 420 x 100.6 x 280.3mm, all models.

A-3506D, A-3512D, A-3524D, A-3548D

Like the A-2000D series, the A-3500D series of mixer amplifiers have five input channels, however the series offers amplifiers with 60, 120, 240, or 480watts of output into a 100V line system. Users also have the option of using the A-3506D as a low impedance amplifier at 8-16ohms; or the A-3512D/A-3524D/A-3548D into a 4-16ohm load by using an impedance switch located on the rear of the amplifier.

Input channels 1-4 are via balanced 6.35mm jack socket, with channels 1, 2 and 4 mic/line selectable, and channels 1 and 2 offering phantom power. Inputs 1 and 2 also offer terminal input however the 6.35mm jack inputs take priority. Line input 5 is via dual unbalanced RCA (phono) connectors, whilst dual RCA (phono) connectors offer line outputs 1 and 2. A single RCA (phono) offers a record output, and a second single RCA (phono) connector offer power amplifier input, allowing the user to insert a graphic equaliser or limiter between the line outputs and amplifier stage. All other main and zone outputs are via terminal connections. Emergency output switching and remote power out are also provided via terminal connections. Mains power is via IEC connection.

Rackmounting is via optional MB-25B brackets.

Rated output: 60W, A-3506D; 120W, A-3512D; 240W, A-3524D; 480W, A-3548D. Power consumption: 96W, A-3506D; 171W, A-3512D; 314W, A-3524D; 601W, A-3548D. Frequency response: 50Hz – 20kHz, +/- 3dB. Distortion: Less than or equal to 1% at 1kHz. Dimension (WxHxD): 420 x 96.1 x 313.1mm. Weight: 4.9kg, A-3506D/A-3512D/A-3524D; 5.1kg, A-3548D.

A-3606D, A-3612D, A-3624D, A-3648D

The A-3600D series has much of the functionality as the A-3500D series, however it has additional inputs and has the ability to be monitor the amplifier’s status remotely via a web-based GUI. A-3600D series mixer amps also have integrated FBS (feedback suppression), 3-point graphic equalisation, gate, limiting and ducking processing. Users also have the option to switch between 100V line output or low impedance output with A-3606D operational at 8-16ohms; and the A-3612D/A-3624D/A-3648D operational into a 4-16ohm load. This settings is applied by using an impedance switch located on the rear of the amplifier.

Inputs 1-4 are by way of terminal connection with independently switchable phantom power, and channels 1 and 2 switchable mic/line level. Channels 5 and 6 are by way of dual RCA (phono) connections, or via terminal inputs. Bus input selector switches allow correct setup for inputs 5 and 6. Input 7 is also via dual RCA (phono) inputs. Controls for chime volume and ducker depth are also positioned on the rear facing panel.

Rackmounting is via optional MB-25B brackets.

Rated output: 60W, A-3606D; 120W, A-3612D; 240W, A-3624D; 480W, A-3648D. Power consumption: 96W, A-3606D; 171W, A-3612D; 314W, A-3624D; 601W, A-35648D. Frequency response: 50Hz – 20kHz, +/- 3dB. Distortion: Less than or equal to 1% at 1kHz. Dimension (WxHxD): 420 x 96.1 x 313.1mm. Weight: 5kg, A-3606D/A-3612D/A-3624D; 5.2kg, A-3648D.