The Quadro 500 DSP is an amplifier from Thomann's own brand the t.amp, and it's outstanding in more ways than one. The amp offers four inputs that aren't just independently controllable, but can also be routed to four outputs in any order. The Quadro also offers whole host of settings and options, accessible both on the unit itself and via a connected PC. A Class D amplifier, the t.amp Quadro 500 DSP has solid technical specs, with high amplifier efficiency and low heat generation. Still, users should make sure they've got enough space to install it simply due to the amp's dimensions; it's a standard 1U rack amp, but at 460mm deep larger than many amps.
Despite the pared back appearance of the 46cm long amp's housing, the menu is impressively detailed. On the front there's a rotary control for navigating the display and a USB-B port for connecting the amp to a computer. That's pretty much it though, apart from the on/off switch – no mute buttons for the outputs, for instance. On the back, there are four XLR inputs, four lockable Speaker Twist outs (each with 500W output at 4 ohms), and a practical resettable fuse. But now on to the menu: It can be operated particularly comfortably on a Windows device, where the outputs can be freely assigned and muted; each channel also offers a fully parametric eight-band EQ with the phase rotation and bypass functions, a line delay, high-pass and low-pass filters with selectable filter type, a compressor, and a gate. Any combination of these settings can also be saved as a preset.
The t.amp Quadro 500 DSP really comes into its own when more than two speakers need to be connected. This could be, for example, a four-point PA system where the guests are seated in the centre. In long rooms, or even churches, a delay line can be connected to the two additional outputs in addition to a classic front PA, especially since the Quadro comes with a delay function as standard. Operators of small clubs and venues can hook up a set of monitors, in addition to the FOH speakers. The fact that the built-in fuse can be reset is especially useful for live operation, and for schools or event spaces where the equipment has been professionally installed by a technician, the amp can be secured with a PIN to prevent unwanted changes.
the t.amp is one of the many in-house brands belonging to Musikhaus Thomann, and since 1998 has offered power amplifiers, complete passive PA sets, keyboard amplifiers, and connection systems. The brand’s entire product range delivers an impressive combination of quality and reliability at attractive prices, and users can find a convincing and affordable solution for every application: From youth clubs and sports halls through to congress centres and much more.
Before using the amplifier with a PC for the first time, the amp's driver needs to be downloaded from the product page. To connect the amplifier to the computer, use a standard USB cable and make sure that the amplifier's power supply connection is securely plugged in. The EV ZLX 12 passive 12" speakers, for instance, make ideal front speakers. If the plan is to connect stage monitors to the two other outputs, we recommend the LD Systems Stinger 8 G3 or the FBT J8 J-Series. Suitable speaker cables are available in various lengths: For example, the pro snake TPL 10 LL is is a professional-grade 10m cable.