S ta l l a t i o n, Inputs | Velodyne Acoustics CHT- 8Q, CHT-10Q

I n s ta l l a t i o n

Inputs

Your new subwoofer is equipped with speaker-level and line-level inputs. Use the LINE LEVEL jacks when connecting your subwoofer to a pre-amp, signal processor (such as LFE out), line- level crossover, or receiver with pre-amp level outputs. When using the line level jacks, some receivers may not provide enough signal to have the unit’s auto-on feature operate properly. Additionally, this lack of signal may also cause the subwoofer to produce less output than it is capable of.

To alleviate this condition, we recommend the following steps:

1)If using line level jacks, BOTH THE LEFT AND RIGHT INPUT SHOULD ALWAYS BE USED – never use just the left or just the right input. If using line level connections from a preamp or signal processor, use both Left and Right inputs from your preprocessor or preamp and connect them to the Left and Right inputs on your subwoofer. (See figure 4 on page 10.)

2)If using a receiver with LFE out, be sure the LFE channel is sending adequate signal to the subwoofer. The subwoofer’s default volume setting is 30 on a 1-80 scale (roughly 1/3 volume). Adjust the LFE channel on your receiver or processor to achieve the desired bass output. See your receiver or processor’s owner’s manual for more information. (See figure 5 on page 11.)

Volume Contr ol

This control allows you to balance the output from the subwoofer to the main speakers in your system. This control should be set to achieve similar output levels from both the main speakers and subwoofer when listening to music. The default volume setting is 30 on a 1-80 scale.

Warning:

Some manufacturers preset their receivers with the Sub-Out channel signal at a minimum level. It is very important to verify that your receiver Sub-Out channel is set to the same output level as your front right and left channels. Refer to your receiver manual for the individual channel level adjustment procedure. If your receiver Sub-Out channel is set too low, the subwoofer may appear to have a weak output, it may sound noisy or distorted, and the Auto On/Off feature may not operate properly.

Low - pass Cr ossover - 40 to 120 Hz

All inputs sum the left and right channels together, with the resulting signal passing through an adjustable low-pass crossover before being amplified. The crossover control allows you to adjust the upper limit of the subwoofer’s frequency response from 40 to 120 Hz. The subwoofer’s response will begin rolling off above the frequency you set this control to. You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer to the main speakers in your system. If your main speakers are smaller with limited low frequency output, you may wish to choose a higher frequency (such as 100 - 120 Hz) than you would with larger speakers which have greater low frequency output. The default crossover setting is 80 Hz. With larger speakers, you may want to set this even lower, for example 70 Hz.

.w w w . v e l o d y n e . c o m

CHT-Q Series User’s Manual

CHT-10Q, CHT- 8Q, CHT-15Q, CHT-12Q specifications

Velodyne Acoustics is renowned for its innovative audio solutions, and the CHT series of subwoofers—namely the CHT-12Q, CHT-15Q, CHT-8Q, and CHT-10Q—showcase the company's commitment to delivering exceptional performance and immersive sound experiences. These subwoofers are designed to complement home theater systems and enhance music playback, ensuring that users enjoy deep, resonant bass without compromising clarity or precision.

One standout feature across the CHT series is the use of advanced digital signal processing (DSP). This technology allows for real-time adjustments to the audio output, optimizing performance based on the specific acoustics of the listening environment. The result is a tailor-made sound experience that delivers tight and controlled bass without distortion, even at high volume levels. Each model in the CHT series is equipped with a built-in amplifier that provides robust power and facilitates seamless integration with a range of audio systems.

The CHT-12Q and CHT-15Q are larger models designed for enthusiasts who crave powerful low-end performance. The CHT-15Q features a 15-inch driver that produces earth-shaking bass, making it an ideal choice for larger spaces or dedicated home theaters. On the other hand, the CHT-12Q, with its 12-inch driver, offers a balanced approach, delivering impressive bass response while being suitable for a variety of room sizes.

For those who have limited space but still desire quality sound reproduction, the CHT-8Q and CHT-10Q offer compact designs without sacrificing performance. The CHT-8Q features an 8-inch driver, making it perfect for smaller setups or apartments. Meanwhile, the CHT-10Q, equipped with a 10-inch driver, strikes a great balance between size and sound output, appealing to users with mid-sized rooms.

All models in the CHT series share a sleek design, ensuring they fit seamlessly into any home decor. They come equipped with various input options, including LFE and line-level connections, allowing for versatile integration with both traditional and contemporary audio systems. With their high-quality construction, powerful performance, and advanced technologies, Velodyne's CHT subwoofers are a smart choice for anyone looking to elevate their audio experience.