Turbosound TQ-308SP Powered Speaker

Need a compact sound-reinforcement speaker that is self-powered and sounds great? Look no further. The Turbosound Qlight TQ-308SP is a trapezoidal, two-way full-range loudspeaker intended for portable and fixed applications such as houses of worship, corporate, theater and audio/visual rental.
Author:
Publish date:
Social count:
0

Need a compact sound-reinforcement speaker that is self-powered and sounds great? Look no further. The Turbosound Qlight TQ-308SP is a trapezoidal, two-way full-range loudspeaker intended for portable and fixed applications such as houses of worship, corporate, theater and audio/visual rental.
Product PointsApplications: Live sound, installation

Key Features: Two-way; 8-inch woofer; 1-inch high-frequency compression driver; rotatable 100 degrees x 60 degrees horn; Converging Elliptical Waveguide (CEW) technology; onboard amplifier

Price: $1,862

Contact: Sennheiser USA at 608-205-9933, Web Site, www.turbosound.com.

Plus

+ Compact, lightweight and solid

+ Plenty of volume

+ High-quality sound

+ Built-in limiter and bass boost

Minus:

- No mic input

- Expensive (but this is the top of the line)
Features

In spite of its small size and weight, the TQ-308SP puts out a full, natural sound with plenty of volume in moderate-sized venues. It measures just 18.3 inches x 10.6 inches x 11.8 inches (HWD) and weighs 35.2 lbs. Claimed frequency range is 68 Hz to 20 kHz ±4 dB, while maximum SPL is 120 dB continuous, 126 dB peak at 1 meter.

The cabinet is solid and has impeccable constuction. It is built of 11-ply 1/2-inch birch for strength and low weight. Available finishes are black or TurboBlue textured paint. Mounting hardware includes internal rigging points for M10 shoulder eyebolts or an SB-308 swivel bracket, and a 35mm (1 3/8 inches) pole socket on the bottom for speaker stands.

A foam front baffle over a perforated steel grille covers the two drivers. They are an 8-inch front-loaded woofer and a 1-inch high-frequency compression driver on a rotatable 100 degrees x 60 degrees horn.

This horn employs Turbosound's Converging Elliptical Waveguide (CEW) technology. According to the manufacturer, "The comparatively short horn flare allows accurate physical alignment of the drive units, and ensures that the wavefront is shaped smoothly, eliminating reflections in the horn throat area while also giving excellent pattern control." This translates to a smooth frequency response, low distortion and uniform dispersion. The waveguide can be rotated by 90 degrees, allowing the unit to be used vertically or horizontally.

Built into the cabinet is a power amplifier that provides 40 watts continuous for the highs and 250 watts continuous for the lows (at 1 percent THD). Rated specs are 10 Hz - 50 kHz bandwidth, 10 kilohms input impedance, >500 damping factor at 1 kHz, and 100V-240V AC at 50/60 Hz power requirements.

On the back of the cabinet is the amp heat sink, an on-off switch, power fuse, XLR line level input and XLR link to the other speaker, gain knob, bass boost switch, and limiter status LEDS for HF and LF. The Powercon AC mains connector is a Neutrik Speakon, and a U.S. power cord adapter is included. The XLR input can accept balanced or unbalanced signals.

On its website, Turbosound provides downloadable EASE data files for the EASE program (Electro Acoustic Simulation for Engineers).

In Use

When I took the Turbosound TQ-308SP on the road, I appreciated its convenient recessed carrying handle. The speaker mounted easily on a stand. I connected power to both speakers, ran a mic cable between one speaker's link XLR and the other speaker's input XLR. Finally, I connected my mixer to the remaining input XLR and plugged in a Shure SM-58.

The sound was very clear and slightly bright on-axis, just as the mic's frequency-response plot would indicate. Off-axis of the speaker, the sound remained clear and natural.

Next I played some CDs through the TQ-308SP. I was not prepared for the quality of sound that I heard. The TQ-308SPs sounded more like studio monitors than typical sound reinforcement speakers. Bass was tight and surprisingly full, mids were smooth and uncolored, and highs were crisp and clean. Some distortion became audible when I drove the system hard enough to flash the limiter LEDs. Although the volume at this signal level was not painful, it was definitely loud - about 108 to 102 dB SPL at 12 to 24 feet away.

The bass was adequate for most applications, but users who want disco-type lows would want to add a sub. The Turbosound TQ-115 and TCS-108 are recommended subwoofers for use with the TQ-308SP.

Summary

The Turbosound TQ-308SP is well-built and looks professional. Measurements and listening tests both indicate that the unit performs to a very high standard. If your priorities in a sound reinforcement speaker are top-quality sound, portability and easy installation, the Turbosound TQ-308SP will deliver exactly what you need.