The S1 Loudspeaker

The S1 delivers absolutely everything, by adding almost nothing; its greatest strength is its well-constructed simplicity. It is a piece of fine furniture, designed to look as equally beautiful in your listening room as it sounds.

The S1 loudspeaker is a solid hardwood, hand-crafted 140 liter bass reflex design. Each pair is hand constructed from 100% kiln-dried hardwoods, in a variety of standard options or in a hardwood of your choosing. It is well braced, internally lined and damped to eliminate unwanted cabinet resonances, and port tuned to 30Hz for full, accurate bass response. The cabinet is acoustically isolated from its base and the floor, with solid brass risers.

The S1 minimally compensates for natural baffle diffraction, however it includes no additional internal components of any kind. No additional drivers are used, preserving perfect phase presentation throughout the frequency range. Because no multi-way crossover circuitry is necessary, your music isn't needlessly filtered, degraded or attenuated. The S1 simply holds the driver perfectly still at ear level, showcasing its remarkable performance free of any coloration, or distortion.

System
Point source full-range ported loudspeaker
Frequency Response
25Hz - 17kHz +/- 6dB
Efficiency
93 dB SPL (2.83 V/1m)
Dimensions
(W x H x D) 15 x 47 x 20 in
Materials
Hardwood, brass, and leather
Weight
120 lbs
Connections
5-way Cardas binding posts, 3-pin Cardas XLR power

The PS1 Power Supply

The PS1 is a very tightly regulated, very low impedance power supply. It is specifically designed as a high nose rejection type, such that AC line noise and harmonic noise is not transferred to the DC regulated output powering the field coil. This unique feature damps any induced motor voice coil modulated signal from the field coil, shunting this AC induced audio signal at the power supply.

The result is "locked down" pure DC power to the driver, with no overlying AC audio signal.

The supply is adjustable from 9 to 13 volts, and can deliver constant DC current up to 2 amps. This allows the listener to significantly modify the "total Q" and overall character of a loudspeaker, and thereby tune it to their personal listening preference.

The rejection ratio of this regulated supply is over 70 dB. Input power is configurable to order, for 115 or 230 volt 50/60 Hz operation. Two 6-foot XLR cables are included as standard, however they can also be configured to your needs.

We are delighted that Whammerdyne Heavy Industries manufacturers these remarkable power supplies in a partnership with Songer Audio.

System
DC Regulated Power Supply
Voltage
Variably Adjustable, 9 - 13 Volts
Current
Constant DC Current up to 2 Amps
Dimensions
(W x H x D) 9 x 4 x 7.25 in
Materials
Anodized Aluminum Chassis
Weight
8.2 lbs
Connections
3-pin XLR power

In Development: The S2 Loudspeaker

The S2 is an open baffle concept speaker I've been working on for the past year. When I began Songer Audio, I intended to build two primary speakers. The first, a ported single driver design, is the S1. The second was to be something that showcases the beauty of the driver itself, likely on an open baffle.

Like the S1, the construction quality and materials of the S2 are without compromise. The hardwood baffles are internally reinforced with thick aluminum bars to prevent resonances. To further eliminate any distortion and resonance, the field coil driver is "magnet mounted" by a large M10 bolt in the electromagnet housing. This allows it to float in space, without the driver making any contact the upper baffle.

The field coil driver has been modified for this design, which I am calling Type D. Leveraging the acoustic transparency of the suspension design, it adds a novel rear-firing whizzer - the first of its kind to my knowledge, and makes a big contribution to the overall treble performance and balance of this dipole loudspeaker. It isn't pictured in the images below, but there are a few shots of it on the gallery page.

Also like the S1, the field coil is allowed to run wide open, with only compensation for baffle diffraction. Below 200Hz, it is assisted by an Acoustic Elegance LO15-D16 woofer for extremely accurate overall bass response. It is "port constrained", which acts similarly to slot loading. This lowers resonant frequency and increases the forward output of the driver, while reducing back wave cancellation. Look for more details in the coming year.

System
Dipole 1.5-way open baffle loudspeaker
Frequency Response
40Hz - 20kHz +/- 6dB
Efficiency
93 dB SPL (2.83 V/1m)
Dimensions
(W x H x D) 20 x 48 x 17 in
Materials
Hardwood, brass, and aluminum
Weight
130 lbs
Connections
5-way Cardas binding posts, 3-pin Cardas XLR power