BASSFACE INDYA10/4

The Indy A is the latest woofer developed in our own facility here in the UK by our new engineering team. As with its bigger brother, the Indy S, this is a brand new design with not a single part carried over from previous models. Starting with a blank sheet of paper we designed everything to offer the best possible reliability and performance for the price point. Many prototypes were made and modified along with a tremendous amount of reliability testing undertaken to ensure outstanding longevity. Using custom designed coils and multiple spiders tuned to each exact size and model we were able to develop for excellent performance whilst providing as much protection as possible against beginner mistakes such as accidental distortion, over driving and non-optimal box design. The motor venting has been carefully designed to offer the best balance between noise reduction and cooling efficiency whilst the added bead of glue above and below the coil helps to prevent separation of the coil when used in extreme situations. This is a useful feature for those that may wish to push the limits of the woofer. The high roll surround was chosen to allow peak excursion whilst maintaining good cone area. In normal use the surround will not be moved to maximum limits, helping to improve longevity. Oversized push terminals are featured to make for easy installation. This also allows easy use of multiple cables to the terminal when running multiple woofer configurations. The Indy A is designed to be used in a sealed enclosure and the product includes detailed plans for a suggested box project. The speaker must not be used in a free air or infinite baffle installation. The design of this woofer ensures compatibility with a huge range of amplifiers, even those where power ratings are many times that of the woofer. This is because we rate at true continuous power, whereas many amplifiers are rated at “maximum” levels. True continuous power ratings! It’s the future! Keep in mind that the vast majority of broken subwoofers are damaged by distortion caused by asking too much of the amplifier, rather than because the woofer can’t actually handle the power. In use, our woofer is incredibly forgiving and has the abilty to handle high power bursts far greater than our listed burp power, providing that the power is clean. The Indy A is a safe pair of hands! For keen enthusiasts looking for a lightweight and accurate sounding woofer the Indy A offers tremendous bandwidth, musicality and surprisingly good deep bass performance. It also has excellent detailed documentation making it easy to set up and use, as well as allowing the construction of more advanced enclosure projects. We firmly believe that this is one of the best subwoofers in its class - it’s the entry level woofer that behaves like an expert! Speaker Maximum Recommended Burst Power (Watts) (One Speaker, Using Appropriate Crossover) 500 Continuous RMS Power (Watts) (One Speaker, Using Appropriate Crossover & 0%THD) 250 Overall Diameter (mm) 262 Magnet Diameter (mm) (Including Magnet Protector Where Applicable) 120 Installation Cutout Diameter (mm) 229 Mounting Depth (mm) 135 Front Protrusion From Mounting Plane (mm) 25 Optimum Frequency Range (Hz) 30>100 Impedance (Ohm) (Nominal) 4 Total Magnet Weight (Oz) 45 Magnet Size (mm) 120*15 Magnet Type y25 Magnet Qty 2 Recommended Bass Enclosure Type Sealed Recommended Bass Enclosure Volume 18 liter Voice Coil Former Spec Aluminum Voice Coil Type round wire Voice Coil Diameter (mm) 50.8 Voice Coil Winding (Layers) 4 Cone Type Paper Sipder Compliance Medium Spider Type Linear Spider Design 1*2，spacer，1*2 Surround Material Foam Terminal Push TECHNICAL HIGHLIGHTS Custom tooled spiders for added coil control High roll surround to allow for high excursion and cone area Soft suspension for deep low notes Light weight copper coated coil for a more musical response Glue reinforced coil to prevent separation TS PARAMETERS Test Conditions After Full Brake In Re (Ohm) 3.21 Cmes(uF) 959.18 Lces(mH) 17.53 Res(Ohm) 40.44 fs(Hz) 38.8 Mms (g) 99.754 MMd (g) 92.754 Rms(kg/s) 2.572 Cms(mm/N) 0.169 Kms(N/mm) 5.93 BL (T m) 10.198 Lambda s 0.055 Qtp 0.744 Qms 9.458 Qes 0.752 Qts 0.697 Vas (Ltr) 25.99 n0(%) 0.194 Lm(dB) 85.05 Lnom(dB) 86.03 rmse Z(%) 3.25 rmse Hx(%) 1.89 Sd(cm2) 330.06 Krm (Ohm) 0.0012 Erm 0.96 Kxm (mOhm) 0.0107 Exm 0.82 Xmax Both Way Total (mm) 12