Subwoofers & Crossovers
A
B&W DB1: $4500
The DB1 is a powered subwoofer in a handsome sealed enclosure measuring 19.3" H by 18.1" W by 16.2" D and weighing 97 lbs. Its solid construction includes: two mechanically opposed 12" woofers separated by a partially open internal partition, 1"-thick walls of MDF with 3/4"-thick bracing panels to minimize vibrations, digital signal-processing circuits to run its menu-based control system, home automation capability, and a 1000W switching amplifier equalized to produce linear output. Also included are a calibration microphone, four connector cables, and a USB-connected soundcard for use with the DB1's Room Acoustics Compensation program. Setup was quick and easy. Though it lacked the pitch definition of JL Audio's Fathom f113, the DB1 blended seamlessly with LG's Quad electrostatics, and produced powerful deep bass and impressive room lock. "The B&W DB1 proved to be a real pocket rocket," he said. (Vol.35 No.2 WWW) JL Audio Fathom f212: $6700 ★
The ruggedly built Fathom f212 is a powered, sealed-box sub with two 12" cone woofers. It measures 32" H by 15" W by 20" D, weighs 220 lbs, and has an effective cabinet volume of 574 cubic inches. Like the smaller Fathom f113, the f212 provides an automatic internal room optimizer for single-band adjustments, but lacks a high-pass filter. With its clean, well-defined low bass and outstanding three-dimensionality and soundstaging performance, the f212 delivered the full intensity and emotional impact of music, said LG. "The Fathom f212 has raised the performance quality of my audio system, and my enjoyment of it, to much higher levels," he concluded. (Vol.33 No.4 WWW) JL Audio Fathom f113: $4300 $$$ ★
The f113 is a small, sealed cube featuring a 13" drive-unit with a prominent OverRoll surround that permits huge cone excursions. All controls and connections for JL Audio's Automatic Room Optimization are conveniently located across the front of the sub, beneath the removable grille. Setup was simple and sophisticated. "Small as it is," said KR, "the f113 makes a powerful and musical contribution to the bottom end, even in the context of an already full-range system." "Remarkably powerful and clean by any standards, it is all the more so considering its compact dimensions," he sums up. When passing his system's low-end signal to the f113 below 80Hz, KR also noted "a dramatic expansion of the entire soundstage." Though installing two f113s in his system required more care and time than LG had anticipated, the improvements in soundstaging and deep-bass reproduction were worth the effort. "My entire system achieved its best performance to date," he said, also noting that the JL Audio's Automatic Room Optimization circuit enabled him to tune out an annoying 50Hz mode in his room acoustics. (Vol.29 No.11, Vol.30 Nos.5 & 9 WWW)
Paradigm Reference SUB 15: $3499 ★
The SUB 15 has a 15" drive-unit with a 76mm-diameter voice-coil, and is rated for bass extension down to 12Hz. Considerably more attractive than the austere Paradigm Reference Servo-15, the SUB 15 has outrigger feet, gracefully tapered side panels, and weighs 114 lbs. It accepts balanced and unbalanced RCA input signals, and offers a trigger input, adjustable low-pass filter, phase adjustment, and a USB port for control of its equalizer. Compared to the Servo-15, the SUB 15 produced a flatter, more extended bass response with a smoother upper end, allowing it to more readily "disappear" as a discrete sound source. "The SUB 15 offers all the powerful bass and extension needed for any music and, indeed, for home theater, unless you're a bass maniac," said Kal. Add $300 for Piano Black finish. (Vol.33 No.1 WWW) Velodyne DD-18+: $5799
The DD-18+ is a powered, sealed-box subwoofer; its 18" forward-firing driver has a fiberglass Rohacell-laminate cone, a 3" voice-coil, and a 39.7-lb magnet. Compared to the original DD-18, the 18+ is 6.5" deeper, 19 lbs heavier, has 28% more internal volume, uses a more efficient amplifier, and features strongly tapered side panels. In addition, the DD-18+'s equalization software provides automated room compensation and controls drive-unit distortion using a servo-loop accelerometer. Despite a daunting number of features, controls, and options, setup was simple. The DD-18+ played the deepest bass passages with minimal distortion, low coloration, and outstanding pitch definition, said LG. "Solid Class A," he concluded. (original version, Vol.27 No.6 WWW; Vol.36 No.3 WWW) B Bryston 10B-SUB crossover: $3595 ★
The 10B features three balanced configurations—stereo two-way, monophonic two-way, and monophonic three-way—and proved extraordinarily versatile in managing crossover slopes and frequencies. LG heard no electronic edginess and noted only the slightest loss in soundstage depth. "I found the 10B-SUB's sound clear, transparent, and neutral—as good as I've ever heard from an outboard crossover." (Vol.18 No.5, Vol.28 No.11 WWW)
Editor's Note: There are no Class C subwoofers listed.
D
PSB SubSeries 125: $449
The SubSeries 125 (originally called SubSeries 1) is a front-ported, bass-reflex design with an 8" polypropylene-cone driver and a 110W, class-A/B BASH power amplifier. It has a claimed frequency range of 36–150Hz, measures 13.25" H by 9.625" W by 14.5" D, weighs 23 lbs, and has a black vinyl finish. There are front-panel Volume and Crossover controls and a rear-panel Phase switch. Setup was simple. With the SubSeries 1 in his system, SM noted a wider, deeper soundstage and tight, musical bass. As SM's review went to press, PSB announced a replacement for the SubSeries 1: The SubSeries 125 shares its predecessor's simple look and controls, but has a more powerful (125W) amplifier; the price remains the same. (Vol.36 No.4 WWW) PSB SubSeries 100: $249
Designed to complement PSB's Alpha PS1 powered desktop loudspeakers, the SubSeries 100 miniature subwoofer measures just 63"8" W by 63"8" H by 77"8" D, and has an attractive high-gloss black finish. The sealed-box sub includes a 50W class-D amplifier and a 51?4" drive-unit designed to maximize bass extension while minimizing distortion. Volume, Crossover, and Phase controls, along with a single pair of RCA inputs, are provided on the tidy rear panel. Setup was simple; the sub partnered seamlessly with SM's Alpha PS1s, showing no evidence whatsoever of discontinuities between the high and low frequencies. In addition to clean, well-extended bass, the SubSeries 100 provided improved senses of timing and touch, better image focus, deeper silences, and more dramatic climaxes, said SM. Can be purchased with PSB's Alpha PS1 loudspeakers, as the Alpha 1-100 system, for $499.99—a savings of $50. (Vol.37 No.3 WWW) K Sonos Sub. Deletions
NHT Super 8 not auditioned in a long time.
The DB1 is a powered subwoofer in a handsome sealed enclosure measuring 19.3" H by 18.1" W by 16.2" D and weighing 97 lbs. Its solid construction includes: two mechanically opposed 12" woofers separated by a partially open internal partition, 1"-thick walls of MDF with 3/4"-thick bracing panels to minimize vibrations, digital signal-processing circuits to run its menu-based control system, home automation capability, and a 1000W switching amplifier equalized to produce linear output. Also included are a calibration microphone, four connector cables, and a USB-connected soundcard for use with the DB1's Room Acoustics Compensation program. Setup was quick and easy. Though it lacked the pitch definition of JL Audio's Fathom f113, the DB1 blended seamlessly with LG's Quad electrostatics, and produced powerful deep bass and impressive room lock. "The B&W DB1 proved to be a real pocket rocket," he said. (Vol.35 No.2 WWW) JL Audio Fathom f212: $6700 ★
The ruggedly built Fathom f212 is a powered, sealed-box sub with two 12" cone woofers. It measures 32" H by 15" W by 20" D, weighs 220 lbs, and has an effective cabinet volume of 574 cubic inches. Like the smaller Fathom f113, the f212 provides an automatic internal room optimizer for single-band adjustments, but lacks a high-pass filter. With its clean, well-defined low bass and outstanding three-dimensionality and soundstaging performance, the f212 delivered the full intensity and emotional impact of music, said LG. "The Fathom f212 has raised the performance quality of my audio system, and my enjoyment of it, to much higher levels," he concluded. (Vol.33 No.4 WWW) JL Audio Fathom f113: $4300 $$$ ★
The f113 is a small, sealed cube featuring a 13" drive-unit with a prominent OverRoll surround that permits huge cone excursions. All controls and connections for JL Audio's Automatic Room Optimization are conveniently located across the front of the sub, beneath the removable grille. Setup was simple and sophisticated. "Small as it is," said KR, "the f113 makes a powerful and musical contribution to the bottom end, even in the context of an already full-range system." "Remarkably powerful and clean by any standards, it is all the more so considering its compact dimensions," he sums up. When passing his system's low-end signal to the f113 below 80Hz, KR also noted "a dramatic expansion of the entire soundstage." Though installing two f113s in his system required more care and time than LG had anticipated, the improvements in soundstaging and deep-bass reproduction were worth the effort. "My entire system achieved its best performance to date," he said, also noting that the JL Audio's Automatic Room Optimization circuit enabled him to tune out an annoying 50Hz mode in his room acoustics. (Vol.29 No.11, Vol.30 Nos.5 & 9 WWW)
The SUB 15 has a 15" drive-unit with a 76mm-diameter voice-coil, and is rated for bass extension down to 12Hz. Considerably more attractive than the austere Paradigm Reference Servo-15, the SUB 15 has outrigger feet, gracefully tapered side panels, and weighs 114 lbs. It accepts balanced and unbalanced RCA input signals, and offers a trigger input, adjustable low-pass filter, phase adjustment, and a USB port for control of its equalizer. Compared to the Servo-15, the SUB 15 produced a flatter, more extended bass response with a smoother upper end, allowing it to more readily "disappear" as a discrete sound source. "The SUB 15 offers all the powerful bass and extension needed for any music and, indeed, for home theater, unless you're a bass maniac," said Kal. Add $300 for Piano Black finish. (Vol.33 No.1 WWW) Velodyne DD-18+: $5799
The DD-18+ is a powered, sealed-box subwoofer; its 18" forward-firing driver has a fiberglass Rohacell-laminate cone, a 3" voice-coil, and a 39.7-lb magnet. Compared to the original DD-18, the 18+ is 6.5" deeper, 19 lbs heavier, has 28% more internal volume, uses a more efficient amplifier, and features strongly tapered side panels. In addition, the DD-18+'s equalization software provides automated room compensation and controls drive-unit distortion using a servo-loop accelerometer. Despite a daunting number of features, controls, and options, setup was simple. The DD-18+ played the deepest bass passages with minimal distortion, low coloration, and outstanding pitch definition, said LG. "Solid Class A," he concluded. (original version, Vol.27 No.6 WWW; Vol.36 No.3 WWW) B Bryston 10B-SUB crossover: $3595 ★
The 10B features three balanced configurations—stereo two-way, monophonic two-way, and monophonic three-way—and proved extraordinarily versatile in managing crossover slopes and frequencies. LG heard no electronic edginess and noted only the slightest loss in soundstage depth. "I found the 10B-SUB's sound clear, transparent, and neutral—as good as I've ever heard from an outboard crossover." (Vol.18 No.5, Vol.28 No.11 WWW)
The SubSeries 125 (originally called SubSeries 1) is a front-ported, bass-reflex design with an 8" polypropylene-cone driver and a 110W, class-A/B BASH power amplifier. It has a claimed frequency range of 36–150Hz, measures 13.25" H by 9.625" W by 14.5" D, weighs 23 lbs, and has a black vinyl finish. There are front-panel Volume and Crossover controls and a rear-panel Phase switch. Setup was simple. With the SubSeries 1 in his system, SM noted a wider, deeper soundstage and tight, musical bass. As SM's review went to press, PSB announced a replacement for the SubSeries 1: The SubSeries 125 shares its predecessor's simple look and controls, but has a more powerful (125W) amplifier; the price remains the same. (Vol.36 No.4 WWW) PSB SubSeries 100: $249
Designed to complement PSB's Alpha PS1 powered desktop loudspeakers, the SubSeries 100 miniature subwoofer measures just 63"8" W by 63"8" H by 77"8" D, and has an attractive high-gloss black finish. The sealed-box sub includes a 50W class-D amplifier and a 51?4" drive-unit designed to maximize bass extension while minimizing distortion. Volume, Crossover, and Phase controls, along with a single pair of RCA inputs, are provided on the tidy rear panel. Setup was simple; the sub partnered seamlessly with SM's Alpha PS1s, showing no evidence whatsoever of discontinuities between the high and low frequencies. In addition to clean, well-extended bass, the SubSeries 100 provided improved senses of timing and touch, better image focus, deeper silences, and more dramatic climaxes, said SM. Can be purchased with PSB's Alpha PS1 loudspeakers, as the Alpha 1-100 system, for $499.99—a savings of $50. (Vol.37 No.3 WWW) K Sonos Sub. Deletions
NHT Super 8 not auditioned in a long time.
