• 4 headphone amplifiers with 3 input mixer and engineer talkback
• 2 Producers’ boxes with talkback to all headphone amps and master talkback circuits
• 5 master talkback circuits
• Engineer talkback to all headphone amps and master talkback circuits

The Top HAT M4 is a headphone amplifier/talkback unit housed in a 1U 19” subrack with two accompanying producer talkback boxes. Each Producer’s box is connected via XLR, has a gooseneck microphone and a series of one-way talkback destinations.

Four Headphone Amplifiers
The Top Hat M4 has four separate headphone amplifiers each with its own three channel mixer and interruptible talkback from the engineer and both producer boxes. Each headphone amp connects via a single XLR located on the rear panel. 

Four Sources
The unit has facility for four sources; input 1, input 2, cue, and clean feed, connected to the rear panel via a D25 socket. Each source has a corresponding input gain POT located on the front panel.

Three Input Mixer Per Headphone Amp
Each headphone amplifier has a 3 input mixer to include either input 1 or input 2, an external input and cue or clean feed, for unique individual mixes. The left ear, both and right ear mixes are adjusted via corresponding POTS located on the front panel. Configuration is as follows; 

Input 1 or input 2: selectable via the toggle switch, mixes into the left ear with volume adjustment via the 'left' POT. 
Each headphone amplifier has its own unique external input: mixes into both ears with volume adjustment via the 'both' POT.
Cue or clean feed: selectable via the toggle switch, mixes into the right ear with volume adjustment via the 'right' POT.

All inputs connect via a D15 socket.

Headphone Amp Talkback/Output
Interruptible (to the right ear mix) talkback using the white momentary push buttons on each headphone amp/producers' box can be routed from three locations;

1. Producer Box 1 (indicated via the illuminated LED on the headphone amplifier) 
2. Producer Box 2 (indicated via the illuminated LED on the headphone amplifier)
3. Engineer by pressing the white button on the front panel.

Master Talkback/Output 
There are five separate interruptible talkback circuits all using momentary push buttons; 

1. RTB1 from both Producer 1 and 2 (Blue)
2. O/P1 from Producer 1 (Yellow)
3. O/P2 from Producer 2 (Yellow)
4. BASE 1 from Producer 1 (Red with a toggle switch for enabling button to ensure intended talkback interruption)

This item is currently in stock. 

Same day dispatch is available on this item:
To arrange same day dispatch of an in stock item we must receive your purchase order or payment by midday (GMT) and your order must state that same day dispatch is required. If ordering via one of our distributors please make sure they know to ask us for a same day dispatch.

Next day delivery is available on this item:
If you're in a hurry then next day delivery is available to most of Europe and a lot of the rest of the World. We can arrange shipping by TNT, FedEx, DHL, UPS or Interlink, one of these carriers is likely to have a next day service direct to your door.
To book a next day delivery for this item please check with us or your local distributor prior to placing your order that this service is available to your location. (We'll need to know the full delivery address including postcode/ zip code to check with the shippers).

Need same day dispatch but don't have an account:
No problem although you can't purchase this item online from us we can take credit cards over the phone.

• TopHAT M4 Block Diagram
• TopHAT M4 Panel View
• TopHAT Range Brochure

Please use one of the following methods to contact us:

Telephone: 01622 753662
International: +44 1622 753662
Email: sales@glensound.com
Skype: live:marc_8167
Online: contact form